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NAME

       xterm - terminal emulator for X

SYNOPSIS

       xterm [-toolkitoption ...] [-option ...] [shell]

DESCRIPTION

       The  xterm  program is a terminal emulator for the X Window System.  It
       provides  DEC  VT102/VT220  (VTxxx)  and  Tektronix   4014   compatible
       terminals  for programs that cannot use the window system directly.  If
       the underlying operating system supports terminal resizing capabilities
       (for  example,  the  SIGWINCH  signal  in systems derived from 4.3bsd),
       xterm will use the facilities to notify programs running in the  window
       whenever it is resized.

       The  VTxxx  and  Tektronix 4014 terminals each have their own window so
       that you can edit text in one and look at graphics in the other at  the
       same  time.   To  maintain  the  correct  aspect  ratio (height/width),
       Tektronix graphics will be restricted to the largest box with a  4014’s
       aspect  ratio  that will fit in the window.  This box is located in the
       upper left area of the window.

       Although both windows may be displayed at the same time, one of them is
       considered  the  ‘‘active’’  window  for  receiving  keyboard input and
       terminal output.  This is the window that  contains  the  text  cursor.
       The  active  window  can  be  chosen through escape sequences, the ‘‘VT
       Options’’ menu in the VTxxx window, and the ‘‘Tek Options’’ menu in the
       4014 window.

EMULATIONS

       The   VT102   emulation  is  fairly  complete,  but  does  not  support
       autorepeat.  Double-size characters are displayed properly if your font
       server  supports  scalable fonts.  The VT220 emulation does not support
       soft fonts, it is otherwise complete.   Termcap(5)  entries  that  work
       with  xterm  include  an  optional  platform-specific entry, ‘‘xterm,’’
       ‘‘vt102,’’ ‘‘vt100’’ and ‘‘ansi,’’ and ‘‘dumb.’’   xterm  automatically
       searches the termcap file in this order for these entries and then sets
       the ‘‘TERM’’ and the ‘‘TERMCAP’’ environment variables.  You  may  also
       use  ‘‘vt220,’’   but  must  set  the terminal emulation level with the
       decTerminalID resource.  (The ‘‘TERMCAP’’ environment variable  is  not
       set  if xterm is linked against a terminfo library, since the requisite
       information is not  provided  by  the  termcap  emulation  of  terminfo
       libraries).

       Many  of  the  special  xterm  features  may  be modified under program
       control through a set of escape sequences different from  the  standard
       VT102 escape sequences.  (See the Xterm Control Sequences document.)

       The  Tektronix  4014 emulation is also fairly good.  It supports 12-bit
       graphics addressing, scaled to the window size.   Four  different  font
       sizes and five different lines types are supported.  There is no write-
       through or defocused mode support.  The  Tektronix  text  and  graphics
       commands  are recorded internally by xterm and may be written to a file
       by sending the COPY escape sequence (or through the Tektronix menu; see
       below).   The  name  of  the  file will be ‘‘COPYyyyy-MM-dd.hh:mm:ss’’,
       where yyyy, MM, dd, hh, mm and ss  are  the  year,  month,  day,  hour,
       minute  and  second when the COPY was performed (the file is created in
       the directory xterm is started in, or the home directory  for  a  login
       xterm).

       Not  all  of  the  features  described  in  this manual are necessarily
       available  in  this  version  of  xterm.   Some  (e.g.,  the  non-VT220
       extensions)  are  available  only  if they were compiled in, though the
       most commonly-used are in the default configuration.

OTHER FEATURES

       Xterm automatically highlights the text cursor when the pointer  enters
       the  window  (selected) and unhighlights it when the pointer leaves the
       window (unselected).  If the window is the focus window, then the  text
       cursor is highlighted no matter where the pointer is.

       In VT102 mode, there are escape sequences to activate and deactivate an
       alternate screen buffer, which is the same size as the display area  of
       the  window.   When activated, the current screen is saved and replaced
       with the alternate screen.  Saving of lines scrolled off the top of the
       window is disabled until the normal screen is restored.  The termcap(5)
       entry for xterm allows  the  visual  editor  vi(1)  to  switch  to  the
       alternate  screen  for  editing  and  to restore the screen on exit.  A
       popup menu entry makes it simple  to  switch  between  the  normal  and
       alternate screens for cut and paste.

       In either VT102 or Tektronix mode, there are escape sequences to change
       the name of the windows.  Additionally, in VT102 mode, xterm implements
       the window-manipulation control sequences from dtterm, such as resizing
       the window, setting its location on the screen.

       Xterm allows  character-based  applications  to  receive  mouse  events
       (currently  button-press  and release events, and button-motion events)
       as  keyboard  control  sequences.   See  Xterm  Control  Sequences  for
       details.

OPTIONS

       The xterm terminal emulator accepts the standard X Toolkit command line
       options as well as many application-specific options.   If  the  option
       begins  with  a  ‘+’  instead  of  a ‘-’, the option is restored to its
       default value.  The -version and -help options are interpreted even  if
       xterm  cannot  open  the  display,  and  are  useful  for  testing  and
       configuration scripts:

       -version
               This causes xterm to print a version  number  to  the  standard
               output.

       -help   This causes xterm to print out a verbose message describing its
               options, one per line.  The message is written to the  standard
               output.   Xterm  generates  this message, sorting it and noting
               whether a "-option" or a "+option" turns the feature on or off,
               since  some  features  historically have been one or the other.
               Xterm generates a concise help message  (multiple  options  per
               line) when an unknown option is used, e.g.,
                    xterm -z

               If  the  logic  for  a particular option such as logging is not
               compiled into xterm, the help text for that option also is  not
               displayed by the -help option.

       One parameter (after all options) may be given.  That overrides xterm’s
       built-in choice of shell program.   Normally  xterm  checks  the  SHELL
       variable.   If  that  is  not set, xterm tries to use the shell program
       specified in the password  file.   If  that  is  not  set,  xterm  uses
       /bin/sh.   If  the  parameter names an executable file, xterm uses that
       instead.  The parameter must be an absolute path, or name a file  found
       on  the  user’s  PATH (and thereby construct an absolute path).  The -e
       option cannot be used with this parameter since it uses all  parameters
       following the option.

       The other options are used to control the appearance and behavior.  Not
       all options are necessarily configured into your copy of xterm:

       -132    Normally, the  VT102  DECCOLM  escape  sequence  that  switches
               between  80 and 132 column mode is ignored.  This option causes
               the DECCOLM escape sequence to be  recognized,  and  the  xterm
               window will resize appropriately.

       -ah     This  option  indicates  that xterm should always highlight the
               text cursor.  By default, xterm  will  display  a  hollow  text
               cursor  whenever  the  focus  is lost or the pointer leaves the
               window.

       +ah     This  option  indicates  that  xterm  should  do  text   cursor
               highlighting based on focus.

       -ai     This  option  disables  active icon support if that feature was
               compiled into xterm.  This is equivalent to setting  the  vt100
               resource activeIcon to ‘‘false’’.

       +ai     This  option  enables  active  icon support if that feature was
               compiled into xterm.  This is equivalent to setting  the  vt100
               resource activeIcon to ‘‘true’’.

       -aw     This  option  indicates that auto-wraparound should be allowed.
               This allows the cursor to automatically wrap to  the  beginning
               of the next line when it is at the rightmost position of a line
               and text is output.

       +aw     This  option  indicates  that  auto-wraparound  should  not  be
               allowed.

       -b number
               This  option  specifies  the  size  of  the  inner  border (the
               distance between the outer  edge  of  the  characters  and  the
               window  border)  in  pixels.   That is the vt100 internalBorder
               resource.  The default is 2.

       +bc     turn off text cursor blinking.  This overrides the  cursorBlink
               resource.

       -bc     turn  on  text cursor blinking.  This overrides the cursorBlink
               resource.

       -bcf milliseconds
               set the amount of time text cursor is off when blinking via the
               cursorOffTime resource.

       -bcn milliseconds
               set  the amount of time text cursor is on when blinking via the
               cursorOffTime resource.

       -bdc    Set the vt100 resource colorBDMode to ‘‘false’’, disabling  the
               display of characters with bold attribute as color

       +bdc    Set  the  vt100  resource colorBDMode to ‘‘true’’, enabling the
               display of characters with bold attribute as color rather  than
               bold

       -cb     Set the vt100 resource cutToBeginningOfLine to ‘‘false’’.

       +cb     Set the vt100 resource cutToBeginningOfLine to ‘‘true’’.

       -cc characterclassrange:value[,...]
               This  sets  classes  indicated by the given ranges for using in
               selecting by  words.   See  the  section  specifying  character
               classes.  and discussion of the charClass resource.

       -cjk_width
               Set  the  cjkWidth  resource  to  ‘‘true’’.   When  turned  on,
               characters with East Asian Ambiguous (A)  category  in  UTR  11
               have  a column width of 2.  Otherwise, they have a column width
               of 1.  This may be useful for some legacy  CJK  text  terminal-
               based  programs  assuming  box  drawings  and  others to have a
               column width of 2.  It  also  should  be  turned  on  when  you
               specify  a  TrueType CJK double-width (bi-width/monospace) font
               either with -fa at the command line or faceName resource.   The
               default is ‘‘false’’

       +cjk_width
               Reset the cjkWidth resource.

       -class string
               This  option  allows  you  to  override xterm’s resource class.
               Normally it is ‘‘XTerm’’, but can be set to another class  such
               as ‘‘UXTerm’’ to override selected resources.

       -cm     This  option  disables  recognition of ANSI color-change escape
               sequences.  It sets the colorMode resource to ‘‘false’’.

       +cm     This option enables recognition  of  ANSI  color-change  escape
               sequences.  This is the same as the vt100 resource colorMode.

       -cn     This  option indicates that newlines should not be cut in line-
               mode selections.  It sets the cutNewline resource to ‘‘false’’.

       +cn     This  option indicates that newlines should be cut in line-mode
               selections.  It sets the cutNewline resource to ‘‘true’’.

       -cr color
               This option specifies the color to use for  text  cursor.   The
               default  is  to  use the same foreground color that is used for
               text.  It  sets  the  cursorColor  resource  according  to  the
               parameter.

       -cu     This  option  indicates  that xterm should work around a bug in
               the more(1) program that causes it to incorrectly display lines
               that  are exactly the width of the window and are followed by a
               line beginning with a tab (the leading tabs are not displayed).
               This option is so named because it was originally thought to be
               a bug in the curses(3x) cursor motion package.

       +cu     This option indicates that xterm should  not  work  around  the
               more(1) bug mentioned above.

       -dc     This  option  disables  the  escape  sequence to change dynamic
               colors: the vt100 foreground and background  colors,  its  text
               cursor  color,  the  pointer  cursor  foreground and background
               colors,  the  Tektronix  emulator  foreground  and   background
               colors,  its text cursor color and highlight color.  The option
               sets the dynamicColors option to ‘‘false’’.

       +dc     This option enables  the  escape  sequence  to  change  dynamic
               colors.   The option sets the dynamicColors option to ‘‘true’’.

       -e program [ arguments ... ]
               This  option  specifies  the  program  (and  its  command  line
               arguments)  to  be  run  in the xterm window.  It also sets the
               window title and icon name to be the basename  of  the  program
               being  executed  if  neither -T nor -n are given on the command
               line.  This must be the last option on the command line.

       -en encoding
               This option determines the encoding on which  xterm  runs.   It
               sets  the  locale  resource.   Encodings  other  than UTF-8 are
               supported by using luit.  The -lc option should be used instead
               of -en for systems with locale support.

       -fb font
               This  option  specifies  a font to be used when displaying bold
               text.  This font must be the  same  height  and  width  as  the
               normal  font.   If  only  one  of  the  normal or bold fonts is
               specified, it will be used as the normal font and the bold font
               will  be produced by overstriking this font.  The default is to
               do overstriking of the normal font.  See also the discussion of
               boldFont, boldMode and alwaysBoldMode resources.

       -fa pattern
               This  option  sets  the  pattern  for  fonts  selected from the
               FreeType library if support for that library was compiled  into
               xterm.   This corresponds to the faceName resource.  When a CJK
               double-width font is specified, you also need to  turn  on  the
               cjkWidth  resource.   See  also  the renderFont resource, which
               combines with this to  determine  whether  FreeType  fonts  are
               initially active.

       -fbb    This option indicates that xterm should compare normal and bold
               fonts bounding boxes to ensure they are  compatible.   It  sets
               the freeBoldBox resource to ‘‘false’’.

       +fbb    This  option indicates that xterm should not compare normal and
               bold fonts bounding boxes to ensure they  are  compatible.   It
               sets the freeBoldBox resource to ‘‘true’’.

       -fbx    This  option  indicates  that  xterm should not assume that the
               normal and bold fonts have VT100 line-drawing  characters.   If
               any  are  missing, xterm will draw the characters directly.  It
               sets the forceBoxChars resource to ‘‘false’’.

       +fbx    This option indicates that xterm should assume that the  normal
               and bold fonts have VT100 line-drawing characters.  It sets the
               forceBoxChars resource to ‘‘true’’.

       -fd pattern
               This option sets the pattern for  double-width  fonts  selected
               from  the  FreeType  library  if  support  for that library was
               compiled    into    xterm.     This    corresponds    to    the
               faceNameDoublesize resource.

       -fi font
               This  option sets the font for active icons if that feature was
               compiled into xterm.  See also the discussion of  the  iconFont
               resource.

       -fs size
               This  option  sets  the  pointsize  for fonts selected from the
               FreeType library if support for that library was compiled  into
               xterm.  This corresponds to the faceSize resource.

       -fw font
               This  option  specifies the font to be used for displaying wide
               text.  By default, it will attempt to use a font twice as  wide
               as  the  font  that  will  be  used to draw normal text.  If no
               doublewidth font is found, it will improvise, by stretching the
               normal font.  This corresponds to the wideFont resource.

       -fwb font
               This  option  specifies the font to be used for displaying bold
               wide text.  By default, it will attempt to use a font twice  as
               wide  as  the  font that will be used to draw bold text.  If no
               doublewidth font is found, it will improvise, by stretching the
               bold font.  This corresponds to the wideBoldFont resource.

       -fx font
               This  option  specifies  the font to be used for displaying the
               preedit string in the "OverTheSpot" input method.  See also the
               discussion of the ximFont resource.

       -hc color
               (see -selbg).

       -hf     This  option indicates that HP Function Key escape codes should
               be generated for function keys.   It  sets  the  hpFunctionKeys
               resource to ‘‘true’’.

       +hf     This  option indicates that HP Function Key escape codes should
               not be generated for function keys.  It sets the hpFunctionKeys
               resource to ‘‘false’’.

       -hm     Tells  xterm  to  use  highlightTextColor and highlightColor to
               override  the  reversed  foreground/background  colors   in   a
               selection.    It   sets   the  highlightColorMode  resource  to
               ‘‘true’’.

       +hm     Tells xterm not to use highlightTextColor and highlightColor to
               override   the   reversed  foreground/background  colors  in  a
               selection.   It  sets  the   highlightColorMode   resource   to
               ‘‘false’’.

       -hold   Turn  on  the  hold  resource, i.e., xterm will not immediately
               destroy its window when the shell command completes.   It  will
               wait  until  you  use  the  window  manager to destroy/kill the
               window, or if you use the menu  entries  that  send  a  signal,
               e.g., HUP or KILL.

       +hold   Turn  off  the  hold  resource,  i.e.,  xterm  will immediately
               destroy its window when the shell command completes.

       -ie     Turn on the ptyInitialErase resource,  i.e.,  use  the  pseudo-
               terminal’s sense of the stty erase value.

       +ie     Turn off the ptyInitialErase resource, i.e., set the stty erase
               value  using  the  kb  string  from  the  termcap  entry  as  a
               reference, if available.

       -im     Turn  on the useInsertMode resource, which forces use of insert
               mode by adding appropriate entries to the  TERMCAP  environment
               variable.

       +im     Turn off the useInsertMode resource.

       -into windowId
               Given  an  X  window identifier (a decimal integer), xterm will
               reparent its top-level shell widget to that  window.   This  is
               used to embed xterm within other applications.

       -j      This  option indicates that xterm should do jump scrolling.  It
               corresponds to the  jumpScroll  resource.   Normally,  text  is
               scrolled  one  line at a time; this option allows xterm to move
               multiple lines at a time so  that  it  does  not  fall  as  far
               behind.   Its  use is strongly recommended since it makes xterm
               much faster when scanning through large amounts of  text.   The
               VT100 escape sequences for enabling and disabling smooth scroll
               as well as the ‘‘VT Options’’ menu can be  used  to  turn  this
               feature on or off.

       +j      This  option indicates that xterm should not do jump scrolling.

       -k8     This  option  sets   the   allowC1Printable   resource.    When
               allowC1Printable  is  set,  xterm  overrides  the mapping of C1
               control characters (code 128-159) to treat them as printable.

       +k8     This option resets the allowC1Printable resource.

       -kt keyboardtype
               This option sets the keyboardType  resource.   Possible  values
               include:  ‘‘unknown’’,  ‘‘default’’,  ‘‘hp’’, ‘‘sco’’, ‘‘sun’’,
               ‘‘tcap’’ and ‘‘vt220’’.

               The value ‘‘unknown’’, causes the corresponding resource to  be
               ignored.

               The  value  ‘‘default’’,  suppresses  the  associated resources
               hpFunctionKeys,        scoFunctionKeys,        sunFunctionKeys,
               tcapFunctionKeys  and  sunKeyboard,  using  the Sun/PC keyboard
               layout.

       -l      Turn logging on.  Normally logging is  not  supported,  due  to
               security  concerns.   Some  versions  of xterm may have logging
               enabled.  The logfile is written to the  directory  from  which
               xterm is invoked.  The filename is generated, of the form

                    XtermLog.XXXXXX

               or

                    Xterm.log.hostname.yyyy.mm.dd.hh.mm.ss.XXXXXX

               depending on how xterm was built.

       +l      Turn logging off.

       -lc     Turn  on  support  of various encodings according to the users’
               locale setting, i.e., LC_ALL,  LC_CTYPE,  or  LANG  environment
               variables.   This  is  achieved by turning on UTF-8 mode and by
               invoking luit  for  conversion  between  locale  encodings  and
               UTF-8.    (luit   is  not  invoked  in  UTF-8  locales.)   This
               corresponds to the locale resource.

               The actual list of encodings which are supported is  determined
               by  luit.   Consult  the  luit manual page for further details.
               See also the discussion of the -u8 option which supports  UTF-8
               locales.

       +lc     Turn  off  support  of automatic selection of locale encodings.
               Conventional 8bit mode or, in UTF-8 locales or with -u8 option,
               UTF-8 mode will be used.

       -lcc path
               File  name  for the encoding converter from/to locale encodings
               and UTF-8 which is used with -lc  option  or  locale  resource.
               This corresponds to the localeFilter resource.

       -leftbar
               Force  scrollbar to the left side of VT100 screen.  This is the
               default, unless you have set the rightScrollBar resource.

       -lf filename
               Specify the log-filename.  See the -l option.

       -ls     This option indicates that the shell that  is  started  in  the
               xterm  window  will be a login shell (i.e., the first character
               of argv[0] will be a dash, indicating  to  the  shell  that  it
               should read the user’s .login or .profile).

               The  -ls  flag and the loginShell resource are ignored if -e is
               also given, because xterm does not know how to make  the  shell
               start  the  given  command  after whatever it does when it is a
               login shell - the user’s shell of choice need not be  a  Bourne
               shell  after  all.   Also,  xterm -e  is  supposed to provide a
               consistent functionality for other applications  that  need  to
               start  text-mode  programs  in a window, and if loginShell were
               not ignored, the result  of  ~/.profile  might  interfere  with
               that.

               If you do want the effect of -ls and -e simultaneously, you may
               get away with something like
                      xterm -e /bin/bash -l -c "my command here"

               Finally, -ls is not completely  ignored,  because  xterm -ls -e
               does  write a /etc/wtmp entry (if configured to do so), whereas
               xterm -e does not.

       +ls     This option indicates that the shell that is started should not
               be a login shell (i.e., it will be a normal ‘‘subshell’’).

       -mb     This option indicates that xterm should ring a margin bell when
               the user types near the right end of a line.  This  option  can
               be turned on and off from the ‘‘VT Options’’ menu.

       +mb     This option indicates that margin bell should not be rung.

       -mc milliseconds
               This  option  specifies  the  maximum  time between multi-click
               selections.

       -mesg   Turn off the messages resource, i.e., disallow write access  to
               the terminal.

       +mesg   Turn  on the messages resource, i.e., allow write access to the
               terminal.

       -mk_width
               Set the mkWidth resource to ‘‘true’’.  This makes xterm  use  a
               built-in  version of the wide-character width calculation.  The
               default is ‘‘false’’

       +mk_width
               Reset the mkWidth resource.

       -ms color
               This option specifies the color to  be  used  for  the  pointer
               cursor.  The default is to use the foreground color.  This sets
               the pointerColor resource.

       -nb number
               This option specifies the number of characters from  the  right
               end  of a line at which the margin bell, if enabled, will ring.
               The default is 10.

       -nul    This option disables the display of underlining.

       +nul    This option enables the display of underlining.

       -pc     This option enables  the  PC-style  use  of  bold  colors  (see
               boldColors resource).

       +pc     This option disables the PC-style use of bold colors.

       -pob    This option indicates that the window should be raised whenever
               a Control-G is received.

       +pob    This option indicates that the  window  should  not  be  raised
               whenever a Control-G is received.

       -rightbar
               Force scrollbar to the right side of VT100 screen.

       -rvc    This  option  disables  the  display of characters with reverse
               attribute as color.

       +rvc    This option enables the  display  of  characters  with  reverse
               attribute as color.

       -rw     This   option   indicates  that  reverse-wraparound  should  be
               allowed.  This allows the cursor to back up from  the  leftmost
               column  of  one  line  to  the rightmost column of the previous
               line.  This is very useful for editing long shell command lines
               and  is  encouraged.  This option can be turned on and off from
               the ‘‘VT Options’’ menu.

       +rw     This option indicates that  reverse-wraparound  should  not  be
               allowed.

       -s      This  option  indicates  that  xterm may scroll asynchronously,
               meaning that the screen does not have to be kept completely  up
               to  date while scrolling.  This allows xterm to run faster when
               network latencies are very high and is  typically  useful  when
               running across a very large internet or many gateways.

       +s      This option indicates that xterm should scroll synchronously.

       -samename
               Does  not  send  title  and  icon name change requests when the
               request would have no effect: the name is  not  changed.   This
               has the advantage of preventing flicker and the disadvantage of
               requiring an extra round trip to the server  to  find  out  the
               previous value.  In practice this should never be a problem.

       +samename
               Always send title and icon name change requests.

       -sb     This  option  indicates  that  some  number  of  lines that are
               scrolled off the top of the window should be saved and  that  a
               scrollbar  should  be  displayed  so  that  those  lines can be
               viewed.  This option may be turned on and  off  from  the  ‘‘VT
               Options’’ menu.

       +sb     This option indicates that a scrollbar should not be displayed.

       -selbg color
               This option specifies the color to use for  the  background  of
               selected  text.   If not specified, reverse video is used.  See
               the discussion of the highlightColor resource.

       -selfg color
               This option specifies the color to use for selected  text.   If
               not  specified,  reverse  video is used.  See the discussion of
               the highlightTextColor resource.

       -sf     This option indicates that Sun Function Key escape codes should
               be generated for function keys.

       +sf     This  option indicates that the standard escape codes should be
               generated for function keys.

       -si     This option indicates  that  output  to  a  window  should  not
               automatically  reposition  the  screen  to  the  bottom  of the
               scrolling region.  This option can be turned on  and  off  from
               the ‘‘VT Options’’ menu.

       +si     This  option  indicates that output to a window should cause it
               to scroll to the bottom.

       -sk     This option indicates that  pressing  a  key  while  using  the
               scrollbar  to  review  previous  lines of text should cause the
               window to be repositioned automatically in the normal  position
               at the bottom of the scroll region.

       +sk     This  option  indicates  that  pressing  a  key while using the
               scrollbar should not cause the window to be repositioned.

       -sl number
               This option specifies the number of lines  to  save  that  have
               been  scrolled  off the top of the screen.  This corresponds to
               the saveLines resource.  The default is 64.

       -sm     This  option,  corresponding  to   the   sessionMgt   resource,
               indicates that xterm should set up session manager callbacks.

       +sm     This  option  indicates  that  xterm  should not set up session
               manager callbacks.

       -sp     This option indicates that Sun/PC keyboard should  be  assumed,
               providing  mapping  for  keypad ‘+’ to ‘,’, and CTRL-F1 to F13,
               CTRL-F2 to F14, etc.

       +sp     This option indicates that the standard escape codes should  be
               generated for keypad and function keys.

       -t      This  option  indicates  that  xterm  should start in Tektronix
               mode, rather than in VT102 mode.   Switching  between  the  two
               windows  is  done  using  the  ‘‘Options’’  menus.   Termcap(5)
               entries  that  work  with   xterm   ‘‘tek4014,’’   ‘‘tek4015,’’
               ‘‘tek4012’’,  ‘‘tek4013’’ and ‘‘tek4010,’’ and ‘‘dumb.’’  xterm
               automatically searches the termcap file in this order for these
               entries   and  then  sets  the  ‘‘TERM’’  and  the  ‘‘TERMCAP’’
               environment variables.

       +t      This option indicates that xterm should start in VT102 mode.

       -tb     This option, corresponding to the toolBar  resource,  indicates
               that  xterm should display a toolbar (or menubar) at the top of
               its window.  The buttons in the toolbar correspond to the popup
               menus, e.g., control/left/mouse for "Main Options".

       +tb     This option indicates that xterm should not set up a toolbar.

       -ti term_id
               Specify  the  name used by xterm to select the correct response
               to terminal ID queries.  It also specifies the emulation level,
               used  to  determine  the  type  of  response  to  a  DA control
               sequence.  Valid values include vt52, vt100, vt101, vt102,  and
               vt220  (the  "vt"  is  optional).   The  default is vt100.  The
               term_id argument specifies the terminal ID to  use.   (This  is
               the same as the decTerminalID resource).

       -tm string
               This  option  specifies  a  series of terminal setting keywords
               followed by the  characters  that  should  be  bound  to  those
               functions, similar to the stty program.  The keywords and their
               values are described in detail in the ttyModes resource.

       -tn name
               This option specifies the name of the terminal type to  be  set
               in  the  TERM  environment  variable.   It  corresponds  to the
               termName resource.   This  terminal  type  must  exist  in  the
               terminal  database (termcap or terminfo, depending on how xterm
               is built) and should have li# and co# entries.  If the terminal
               type  is  not  found,  xterm  uses the built-in list ‘‘xterm’’,
               ‘‘vt102’’, etc.

       -u8     This option sets the utf8 resource.  When utf8  is  set,  xterm
               interprets  incoming  data  as  UTF-8.  This sets the wideChars
               resource as a side-effect, but  the  UTF-8  mode  set  by  this
               option  prevents it from being turned off.  If you must turn it
               on and off, use the wideChars resource.

               This option and the utf8 resource are overridden by the -lc and
               -en  options  and  locale resource.  That is, if xterm has been
               compiled to support  luit,  and  the  locale  resource  is  not
               ‘‘false’’  this  option is ignored.  We recommend using the -lc
               option or the ‘‘locale: true’’ resource in UTF-8  locales  when
               your  operating  system supports locale, or -en UTF-8 option or
               the ‘‘locale: UTF-8’’ resource when your operating system  does
               not support locale.

       +u8     This option resets the utf8 resource.

       -ulc    This  option  disables the display of characters with underline
               attribute as color rather than with underlining.

       +ulc    This option enables the display of  characters  with  underline
               attribute as color rather than with underlining.

       -ulit   This   option,  corresponding  to  the  italicULMode  resource,
               disables the display of characters with underline attribute  as
               italics rather than with underlining.

       +ulit   This   option,  corresponding  to  the  italicULMode  resource,
               enables the display of characters with underline  attribute  as
               italics rather than with underlining.

       -ut     This option indicates that xterm should not write a record into
               the the system utmp log file.

       +ut     This option indicates that xterm should write a record into the
               system utmp log file.

       -vb     This  option  indicates that a visual bell is preferred over an
               audible one.  Instead of ringing the terminal bell  whenever  a
               Control-G is received, the window will be flashed.

       +vb     This option indicates that a visual bell should not be used.

       -wc     This  option  sets  the  wideChars resource.  When wideChars is
               set, xterm maintains internal structures for 16-bit characters.
               If  you do not set this resource to ‘‘true’’, xterm will ignore
               the escape sequence which turns UTF-8 mode  on  and  off.   The
               default is ‘‘false’’.

       +wc     This option resets the wideChars resource.

       -wf     This  option indicates that xterm should wait for the window to
               be mapped the first time before starting the subprocess so that
               the  initial  terminal  size settings and environment variables
               are correct.  It is the application’s responsibility  to  catch
               subsequent terminal size changes.

       +wf     This  option  indicates  that  xterm  should  not  wait  before
               starting the subprocess.

       -ziconbeep percent
               Same as zIconBeep resource.  If  percent  is  non-zero,  xterms
               that  produce  output while iconified will cause an XBell sound
               at the given volume and have  "***"  prepended  to  their  icon
               titles.    Most   window   managers  will  detect  this  change
               immediately, showing you  which  window  has  the  output.   (A
               similar feature was in x10 xterm.)

       -C      This  option  indicates that this window should receive console
               output.  This is not  supported  on  all  systems.   To  obtain
               console  output,  you  must be the owner of the console device,
               and you must have read and write permission for it.  If you are
               running  X under xdm on the console screen you may need to have
               the session startup and reset programs  explicitly  change  the
               ownership  of the console device in order to get this option to
               work.

       -Sccn   This option allows xterm to be used  as  an  input  and  output
               channel  for  an  existing  program  and  is  sometimes used in
               specialized applications.  The option value specifies the  last
               few  letters  of  the name of a pseudo-terminal to use in slave
               mode, plus the number of the inherited file descriptor.  If the
               option contains a ‘‘/’’ character, that delimits the characters
               used for the pseudo-terminal name  from  the  file  descriptor.
               Otherwise,  exactly two characters are used from the option for
               the pseudo-terminal name, the remainder is the file descriptor.
               Examples:
                      -S123/45
                      -Sab34

               Note that xterm does not close any file descriptor which it did
               not open for its own use.  It is possible (though probably  not
               portable)  to  have  an  application  which passes an open file
               descriptor down to xterm past  the  initialization  or  the  -S
               option to a process running in the xterm.

       The  following  command  line  arguments are provided for compatibility
       with older versions.  They may not be supported in the next release  as
       the  X Toolkit provides standard options that accomplish the same task.

       %geom   This option specifies the preferred size and  position  of  the
               Tektronix   window.    It   is  shorthand  for  specifying  the
               ‘‘*tekGeometry’’ resource.

        #geom  This option  specifies  the  preferred  position  of  the  icon
               window.   It  is shorthand for specifying the ‘‘*iconGeometry’’
               resource.

       -T string
               This option specifies the title for  xterm’s  windows.   It  is
               equivalent to -title.

       -n string
               This option specifies the icon name for xterm’s windows.  It is
               shorthand for specifying the ‘‘*iconName’’ resource.  Note that
               this  is  not the same as the toolkit option -name (see below).
               The default icon name is the application name.

       -r      This option indicates that reverse video should be simulated by
               swapping   the   foreground   and  background  colors.   It  is
               equivalent to -rv.

       -w number
               This option  specifies  the  width  in  pixels  of  the  border
               surrounding  the  window.   It is equivalent to -borderwidth or
               -bw.

       The following standard X Toolkit command line  arguments  are  commonly
       used with xterm:

       -bd color
               This  option  specifies  the color to use for the border of the
               window.   xterm  uses  the  X   Toolkit   default,   which   is
               ‘‘XtDefaultForeground’’.

       -bg color
               This  option  specifies  the color to use for the background of
               the window.  The default is ‘‘XtDefaultBackground.’’

       -bw number
               This option  specifies  the  width  in  pixels  of  the  border
               surrounding the window.

               This  appears  to be a legacy of older X releases.  It sets the
               borderWidth resource of  the  shell  widget,  and  may  provide
               advice  to  your  window  manager  to  set the thickness of the
               window  frame.   Most  window  managers   do   not   use   this
               information.   See  the  -b  option,  which  controls the inner
               border of the xterm window.

       -display display
               This option specifies the X server to contact; see X(7).

       -fg color
               This option specifies the color to  use  for  displaying  text.
               The default is ‘‘XtDefaultForeground.’’

       -fn font
               This option specifies the font to be used for displaying normal
               text.  The default is fixed.

       -font font
               This is the same as -fn.

       -geometry geometry
               This option specifies the preferred size and  position  of  the
               VT102 window; see X(7).

       -iconic This  option indicates that xterm should ask the window manager
               to start it as an icon rather than as the normal window.

       -name name
               This  option  specifies  the  application  name   under   which
               resources   are   to  be  obtained,  rather  than  the  default
               executable file name.  Name should not contain ‘‘.’’  or  ‘‘*’’
               characters.

       -rv     This option indicates that reverse video should be simulated by
               swapping the foreground and background colors.

       +rv     Disable the simulation of reverse video by swapping  foreground
               and background colors.

       -title string
               This  option  specifies  the  window title string, which may be
               displayed by window managers  if  the  user  so  chooses.   The
               default  title  is  the  command  line  specified  after the -e
               option, if any, otherwise the application name.

       -xrm resourcestring
               This option specifies a resource string to be  used.   This  is
               especially  useful  for  setting  resources  that  do  not have
               separate command line options.

RESOURCES

       The program understands all of the core X Toolkit  resource  names  and
       classes.  Application specific resources (e.g., "XTerm.NAME") follow:

       backarrowKeyIsErase (class BackarrowKeyIsErase)
               Tie   the  VTxxx  backarrowKey  and  ptyInitialErase  resources
               together by setting the DECBKM state according to  whether  the
               initial  value of stty erase is a backspace (8) or delete (127)
               character.  The  default  is  ‘‘false’’,  which  disables  this
               feature.

       hold (class Hold)
               If true, xterm will not immediately destroy its window when the
               shell command completes.  It will wait until you use the window
               manager  to  destroy/kill  the  window,  or if you use the menu
               entries that send a signal, e.g., HUP or KILL.  You may  scroll
               back,  select text, etc., to perform most graphical operations.
               Resizing the  display  will  lose  data,  however,  since  this
               involves interaction with the shell which is no longer running.

       hpFunctionKeys (class HpFunctionKeys)
               Specifies whether or not HP Function Key escape codes should be
               generated   for   function  keys  instead  of  standard  escape
               sequences.  See also the keyboardType resource.

       iconGeometry (class IconGeometry)
               Specifies the preferred size and position  of  the  application
               when  iconified.   It  is  not necessarily obeyed by all window
               managers.

       iconName (class IconName)
               Specifies the icon name.  The default is the application  name.

       keyboardType (class KeyboardType)
               Enables  one  (or none) of the various keyboard-type resources:
               hpFunctionKeys,        scoFunctionKeys,        sunFunctionKeys,
               tcapFunctionKeys  and sunKeyboard.  The resource’s value should
               be one of the corresponding strings ‘‘hp’’,  ‘‘sco’’,  ‘‘sun’’,
               ‘‘tcap’’  or  ‘‘vt220’’.  The individual resources are provided
               for legacy support; this resource is simpler to use.

       maxBufSize (class MaxBufSize)
               Specify the maximum size of the input buffer.  The  default  is
               32768.  You cannot set this to a value less than the minBufSize
               resource.  It will be increased as needed to  make  that  value
               evenly divide this one.

               On  some  systems  you  may want to increase one or both of the
               maxBufSize and minBufSize resource  values  to  achieve  better
               performance  if  the  operating  system  prefers  larger buffer
               sizes.

       messages (class Messages)
               Specifies whether write  access  to  the  terminal  is  allowed
               initially.  See mesg(1).  The default is ‘‘true’’.

       menuLocale (class MenuLocale)
                Specify  the  locale  used for character-set computations when
                loading the popup menus.  Use this to  improve  initialization
                performance   of  the  Athena  popup  menus,  which  may  load
                unnecessary (and very large) fonts, e.g., in a  locale  having
                UTF-8  encoding.   The  default is an empty string, which uses
                the current locale setting.

                Set it to ‘‘C’’ to achieve  the  best  performance  using  the
                default  menu  resource  settings.   If you happen to be using
                localized menu resources, set the resource accordingly.

       minBufSize (class MinBufSize)
               Specify the minimum size of the input buffer, i.e., the  amount
               of data that xterm requests on each read.  The default is 4096.
               You cannot set this to a value less than 64.

       ptyHandshake (class PtyHandshake)
               If   ‘‘true’’,   xterm   will   perform   handshaking    during
               initialization  to  ensure  that the parent and child processes
               update the utmp and stty  state.   See  also  waitForMap  which
               waits  for the pseudo-terminal’s notion of the screen size, and
               ptySttySize which resets the screen size after  other  terminal
               initialization is complete.  The default is ‘‘true’’.

       ptyInitialErase (class PtyInitialErase)
               If  ‘‘true’’, xterm will use the pseudo-terminal’s sense of the
               stty erase value.  If ‘‘false’’, xterm will set the stty  erase
               value  to match its own configuration, using the kb string from
               the termcap entry as a  reference,  if  available.   In  either
               case, the result is applied to the TERMCAP variable which xterm
               sets.  See also the ttyModes resource, which may  modify  this.
               The default is ‘‘false’’.

       ptySttySize (class PtySttySize)
               If  ‘‘true’’,  xterm  will reset the screen size after terminal
               initialization is complete.  This is needed  for  some  systems
               whose     pseudo-terminals     cannot     propagate    terminal
               characteristics.  Where it is not needed, it can interfere with
               other  methods  for  setting  the intial screen size, e.g., via
               window manager interaction.  See also  waitForMap  which  waits
               for  a handshake-message giving the pseudo-terminal’s notion of
               the screen size.  The default is ‘‘false’’ on Linux  and  OS  X
               systems, ‘‘true’’ otherwise.

       sameName (class SameName)
               If  the value of this resource is ‘‘true’’, xterm does not send
               title and icon name change requests when the request would have
               no  effect: the name is not changed.  This has the advantage of
               preventing flicker and the disadvantage of requiring  an  extra
               round  trip  to  the server to find out the previous value.  In
               practice this should  never  be  a  problem.   The  default  is
               ‘‘true’’.

       scoFunctionKeys (class ScoFunctionKeys)
               Specifies  whether  or not SCP Function Key escape codes should
               be generated for  function  keys  instead  of  standard  escape
               sequences.  See also the keyboardType resource.

       sessionMgt (class SessionMgt)
               If  the  value  of  this  resource  is  ‘‘true’’, xterm sets up
               session    manager    callbacks    for    XtNdieCallback    and
               XtNsaveCallback.  The default is ‘‘true’’.

       sunFunctionKeys (class SunFunctionKeys)
               Specifies  whether  or not Sun Function Key escape codes should
               be generated for  function  keys  instead  of  standard  escape
               sequences.  See also the keyboardType resource.

       sunKeyboard (class SunKeyboard)
               Specifies  whether  or  not  Sun/PC  keyboard  layout should be
               assumed rather than DEC VT220.  This causes the keypad  ‘+’  to
               be mapped to ‘,’.  and CTRL F1-F12 to F11-F20, depending on the
               setting of the ctrlFKeys resource.  so  xterm  emulates  a  DEC
               VT220   more   accurately.    Otherwise   (the   default,  with
               sunKeyboard set to ‘‘false’’), xterm uses PC-style bindings for
               the function keys and keypad.

               PC-style  bindings use the Shift, Alt, Control and Meta keys as
               modifiers for function-keys and keypad (see the document  Xterm
               Control  Sequences  for  details).   The  PC-style bindings are
               analogous to PCTerm, but not the same  thing.   Normally  these
               bindings  do  not  conflict  with  the  use  of the Meta key as
               described for the eightBitInput resource.   If  they  do,  note
               that  the  PC-style bindings are evaluated first.  See also the
               keyboardType resource.

       tcapFunctionKeys (class TcapFunctionKeys)
               Specifies whether or not function key escape  codes  read  from
               the  termcap/terminfo  entry  should  be generated for function
               keys instead  of  standard  escape  sequences.   See  also  the
               keyboardType resource.

       termName (class TermName)
               Specifies  the  terminal  type  name  to  be  set  in  the TERM
               environment variable.

       title (class Title)
               Specifies a string that may be used by the window manager  when
               displaying this application.

       toolBar (class ToolBar)
               Specifies  whether or not the toolbar should be displayed.  The
               default is ‘‘true.’’

       ttyModes (class TtyModes)
               Specifies a string containing terminal setting keywords and the
               characters  to  which  they  may  be bound.  Allowable keywords
               include: brk, dsusp, eof,  eol,  eol2,  erase,  erase2,  flush,
               intr,  kill,  lnext,  quit,  rprnt,  start, status, stop, susp,
               swtch and weras.  Control characters may be specified as  ^char
               (e.g.,  ^c  or ^u) and ^? may be used to indicate delete (127).
               Use ^- to denote undef.  Use \034  to  represent  ^\,  since  a
               literal  backslash in an X resource escapes the next character.

               This  is  very  useful  for  overriding  the  default  terminal
               settings  without  having  to do an stty every time an xterm is
               started.  Note, however, that the stty program on a given  host
               may use different keywords; xterm’s table is built-in.

               If  the  ttyModes  resource  specifies  a value for erase, that
               overrides the ptyInitialErase  resource  setting,  i.e.,  xterm
               initializes the terminal to match that value.

       useInsertMode (class UseInsertMode)
               Force  use  of insert mode by adding appropriate entries to the
               TERMCAP environment variable.  This is  useful  if  the  system
               termcap is broken.  The default is ‘‘false.’’

       utmpDisplayId (class UtmpDisplayId)
               Specifies whether or not xterm should try to record the display
               identifier (display number and screen number) as  well  as  the
               hostname in the system utmp log file.  The default is ‘‘true.’’

       utmpInhibit (class UtmpInhibit)
               Specifies whether or not xterm should try to record the  user’s
               terminal  in the system utmp log file.  If true, xterm will not
               try.  The default is ‘‘false.’’

       waitForMap (class WaitForMap)
               Specifies whether or not xterm  should  wait  for  the  initial
               window map before starting the subprocess.  This is part of the
               ptyHandshake logic.  When xterm is directed  to  wait  in  this
               fashion,  it  passes  the terminal size from the display end of
               the pseudo-terminal  to  the  terminal  I/O  connection,  e.g.,
               according  to  the window manager.  Otherwise, it uses the size
               as given in resource values or command-line option -geom.   The
               default is ‘‘false.’’

       zIconBeep (class ZIconBeep)
               Same as -ziconbeep command line argument.  If the value of this
               resource  is  non-zero,  xterms  that  produce   output   while
               iconified  will  cause  an  XBell sound at the given volume and
               have  "***"  prepended  to  their  icon  titles.   Most  window
               managers will detect this change immediately, showing you which
               window has the output.  (A similar feature was in  x10  xterm.)
               The default is ‘‘false.’’

   VT100 Widget Resources
       The  following  resources  are  specified  as  part of the vt100 widget
       (class   VT100):   These   are   specified   by   patterns   such    as
       "XTerm.vt100.NAME":

       activeIcon (class ActiveIcon)
               Specifies  whether  or  not  active icon windows are to be used
               when the xterm window is iconified, if this feature is compiled
               into  xterm.   The active icon is a miniature representation of
               the content of the  window  and  will  update  as  the  content
               changes.    Not   all   window   managers  necessarily  support
               application icon windows.  Some window managers will allow  you
               to  enter  keystrokes into the active icon window.  The default
               is ‘‘false.’’

       allowC1Printable (class AllowC1Printable)
               If true, overrides the mapping of C1 controls  (codes  128-159)
               to  make  them be treated as if they were printable characters.
               Although this corresponds to no particular standard, some users
               insist it is a VT100.  The default is ‘‘false.’’

       allowSendEvents (class AllowSendEvents)
               Specifies  whether  or  not  synthetic  key  and  button events
               (generated using the X protocol SendEvent  request)  should  be
               interpreted  or  discarded.   The  default is ‘‘false’’ meaning
               they are discarded.  Note that allowing such events  creates  a
               very large security hole.  The default is ‘‘false.’’

       allowTitleOps (class AllowTitleOps)
               Specifies  whether  control  sequences  that  modify the window
               title or icon name should be allowed.  The default is ‘‘true.’’

       allowWindowOps (class AllowWindowOps)
               Specifies whether extended window control sequences (as used in
               dtterm) should be allowed.  The default is ‘‘true.’’

       altIsNotMeta (class AltIsNotMeta)
               If ‘‘true’’, treat the Alt-key as  if  it  were  the  Meta-key.
               Your keyboard may happen to be configured so they are the same.
               But if they are not, this allows you to use  the  same  prefix-
               and  shifting operations with the Alt-key as with the Meta-key.
               See  altSendsEscape  and  metaSendsEscape.   The   default   is
               ‘‘false.’’

       altSendsEscape (class AltSendsEscape)
               This  is an additional keyboard operation that may be processed
               after the logic for metaSendsEscape.  It is only  available  if
               the altIsNotMeta resource is set.

               If  ‘‘true’’,  Alt  characters  (a  character combined with the
               modifier associated with  left/right  Alt-keys)  are  converted
               into   a  two-character  sequence  with  the  character  itself
               preceded by ESC.  This applies as well to function key  control
               sequences,  unless  xterm  sees  that  Alt  is used in your key
               translations.  If ‘‘false’’,  Alt  characters  input  from  the
               keyboard   cause   a  shift  to  8-bit  characters  (just  like
               metaSendsEscape).  By combining the  Alt-  and  Meta-modifiers,
               you  can  create  corresponding  combinations of ESC-prefix and
               8-bit characters.  The default is ‘‘false.’’

       alwaysBoldMode (class AlwaysBoldMode)
               Specifies whether xterm should check if  the  normal  and  bold
               fonts  are distinct before deciding whether to use overstriking
               to simulate bold fonts.  If this resource is true,  xterm  does
               not  make  the  check  for  distinct fonts when deciding how to
               handle the boldMode resource.  The default is ‘‘false.’’

               boldMode   alwaysBoldMode   Comparison   Action
               ----------------------------------------------------
               false      false            ignored      use font
               false      true             ignored      use font
               true       false            same         overstrike
               true       false            different    use font
               true       true             ignored      overstrike

       alwaysHighlight (class AlwaysHighlight)
               Specifies  whether  or  not  xterm  should  always  display   a
               highlighted  text  cursor.   By  default  (if  this resource is
               false), a hollow text cursor is displayed whenever the  pointer
               moves  out  of  the window or the window loses the input focus.
               The default is ‘‘false.’’

       alwaysUseMods (class AlwaysUseMods)
               Override the numLock resource, telling xterm to use the Alt and
               Meta   modifiers  to  construct  parameters  for  function  key
               sequences even if those modifiers appear  in  the  translations
               resource.  The default is ‘‘false.’’

       answerbackString (class AnswerbackString)
               Specifies  the  string  that  xterm sends in response to an ENQ
               (control/E) character from the host.  The default  is  a  blank
               string,  i.e.,  ‘‘’’.  A hardware VT100 implements this feature
               as a setup option.

       appcursorDefault (class AppcursorDefault)
               If ‘‘true,’’ the cursor keys are initially in application mode.
               This  is the same as the VT102 private DECCKM mode, The default
               is ‘‘false.’’

       appkeypadDefault (class AppkeypadDefault)
               If ‘‘true,’’ the keypad keys are initially in application mode.
               The default is ‘‘false.’’

       autoWrap (class AutoWrap)
               Specifies  whether  or  not  auto-wraparound should be enabled.
               This is the same as the VT102 DECAWM.  The default is ‘‘true.’’

       awaitInput (class AwaitInput)
               Specifies  whether  or  not  the  xterm  uses  a 50 millisecond
               timeout to await  input  (i.e.,  to  support  the  Xaw3d  arrow
               scrollbar).  The default is ‘‘false.’’

       backarrowKey (class BackarrowKey)
               Specifies  whether  the backarrow key transmits a backspace (8)
               or delete (127) character.   This  corresponds  to  the  DECBKM
               control   sequence.    The  default  (backspace)  is  ‘‘true.’’
               Pressing the control key toggles this behavior.

       background (class Background)
               Specifies the color to use for the background  of  the  window.
               The default is ‘‘XtDefaultBackground.’’

       bellIsUrgent (class BellIsUrgent)
               Specifies  whether  to  set  the  Urgency  hint  for the window
               manager when making a bell sound.  The default is ‘‘false.’’

       bellOnReset (class BellOnReset)
               Specifies whether to sound a bell when doing a hard reset.  The
               default is ‘‘true.’’

       bellSuppressTime (class BellSuppressTime)
               Number  of  milliseconds  after  a  bell command is sent during
               which additional bells will be suppressed.  Default is 200.  If
               set  non-zero,  additional  bells will also be suppressed until
               the server reports that processing of the first bell  has  been
               completed; this feature is most useful with the visible bell.

       boldColors (class ColorMode)
               Specifies  whether  to  combine bold attribute with colors like
               the IBM PC, i.e., map colors 0 through 7 to  colors  8  through
               15.   These  normally  are the brighter versions of the first 8
               colors, hence bold.  The default is ‘‘true.’’

       boldFont (class BoldFont)
               Specifies  the  name  of  the  bold  font  to  use  instead  of
               overstriking.  There is no default for this resource.

       boldMode (class BoldMode)
               This  specifies  whether  or  not  text with the bold attribute
               should be overstruck to simulate bold  fonts  if  the  resolved
               bold  font is the same as the normal font.  It may be desirable
               to disable bold fonts when color is being  used  for  the  bold
               attribute.

               Note that xterm has one bold font which you may set explicitly.
               Xterm attempts to  derive  a  bold  font  for  the  other  font
               selections  (font1  through  font6).   If it cannot find a bold
               font, it will use the normal font.  In each case  (whether  the
               explicit  resource or the derived font), if the normal and bold
               fonts are distinct, this resource has no effect.   The  default
               is ‘‘true.’’

               See  the  alwaysBoldMode resource which can modify the behavior
               of this resource.

               Although xterm attempts to derive a bold font  for  other  font
               selections,  the  font  server may not cooperate.  Since X11R6,
               bitmap fonts have been  scaled.   The  font  server  claims  to
               provide  the  bold  font that xterm requests, but the result is
               not always readable.  XFree86 provides a feature which  can  be
               used  to suppress the scaling.  In the X server’s configuration
               file (e.g., "/etc/X11/XFree86"), you can add ":unscaled" to the
               end  of the directory specification for the "misc" fonts, which
               comprise the fixed-pitch fonts that are  used  by  xterm.   For
               example
                       FontPath         "/usr/lib/X11/fonts/misc/"

               would become
                       FontPath         "/usr/lib/X11/fonts/misc/:unscaled"

               Depending  on  your configuration, the font server may have its
               own configuration file.  The same ":unscaled" can be  added  to
               its   configuration   file   at   the   end  of  the  directory
               specification for "misc".

       brokenLinuxOSC (class BrokenLinuxOSC)
               If true, xterm applies a workaround to ignore malformed control
               sequences  that a Linux script might send.  Compare the palette
               control sequences documented  in  console_codes  with  ECMA-48.
               The default is ‘‘true.’’

       brokenSelections (class BrokenSelections)
               If  true,  xterm in 8-bit mode will interpret STRING selections
               as carrying text in the current  locale’s  encoding.   Normally
               STRING  selections carry ISO-8859-1 encoded text.  Setting this
               resource to ‘‘true’’ violates the ICCCM; it  may,  however,  be
               useful for interacting with some broken X clients.  The default
               is ‘‘false.’’

       brokenStringTerm (class BrokenStringTerm)
               provides a work-around for some ISDN  routers  which  start  an
               application  control string without completing it.  Set this to
               ‘‘true’’ if xterm  appears  to  freeze  when  connecting.   The
               default is ‘‘false.’’

       c132 (class C132)
               Specifies  whether  or  not  the VT102 DECCOLM escape sequence,
               used to switch between 80 and 132 columns, should  be  honored.
               The default is ‘‘false.’’

       cacheDoublesize (class CacheDoublesize)
               Tells  whether  to cache double-sized fonts by xterm.  Set this
               to zero to disable doublesize fonts altogether.

       charClass (class CharClass)
               Specifies comma-separated lists of character class bindings  of
               the form [low-]high:value.  These are used in determining which
               sets of characters should be treated the same  when  doing  cut
               and paste.  See the CHARACTER CLASSES section.

       cjkWidth (class CjkWidth)
               Specifies  whether  xterm  should  follow  the traditional East
               Asian width convention.  When turned on, characters  with  East
               Asian  Ambiguous  (A) category in UTR 11 have a column width of
               2.  You may have to set this option to  ‘‘true’’  if  you  have
               some  old  East  Asian terminal based programs that assume that
               line-drawing characters have a column  width  of  2.   If  this
               resource  is  false,  the  mkWidth resource controls the choice
               between the system’s wcwidth and xterm’s built-in tables.   The
               default is ‘‘false.’’

       color0 (class Color0)

       color1 (class Color1)

       color2 (class Color2)

       color3 (class Color3)

       color4 (class Color4)

       color5 (class Color5)

       color6 (class Color6)

       color7 (class Color7)
               These  specify  the  colors  for  the  ISO-6429 extension.  The
               defaults are, respectively, black,  red3,  green3,  yellow3,  a
               customizable  dark  blue,  magenta3,  cyan3,  and  gray90.  The
               default shades of color are chosen to allow the colors 8-15  to
               be used as brighter versions.

       color8 (class Color8)

       color9 (class Color9)

       color10 (class Color10)

       color11 (class Color11)

       color12 (class Color12)

       color13 (class Color13)

       color14 (class Color14)

       color15 (class Color15)
               These specify the colors for the ISO-6429 extension if the bold
               attribute is also enabled.  The  default  resource  values  are
               respectively,  gray30, red, green, yellow, a customizable light
               blue, magenta, cyan, and white.

       color16 (class Color16)

       through

       color255 (class Color255)
               These specify the colors  for  the  256-color  extension.   The
               default resource values are for colors 16 through 231 to make a
               6x6x6 color  cube,  and  colors  232  through  255  to  make  a
               grayscale ramp.

       colorAttrMode (class ColorAttrMode)
               Specifies whether colorBD, colorBL, colorRV, and colorUL should
               override ANSI colors.  If not, these are displayed only when no
               ANSI  colors have been set for the corresponding position.  The
               default is ‘‘false.’’

       colorBD (class ColorBD)
               This specifies the color to use to display bold  characters  if
               the  ‘‘colorBDMode’’  resource  is  enabled.   The  default  is
               ‘‘XtDefaultForeground.’’

       colorBDMode (class ColorAttrMode)
               Specifies whether characters with the bold attribute should  be
               displayed  in  color  or as bold characters.  Note that setting
               colorMode off disables all colors, including bold.  The default
               is ‘‘false.’’

       colorBL (class ColorBL)
               This  specifies the color to use to display blink characters if
               the  ‘‘colorBLMode’’  resource  is  enabled.   The  default  is
               ‘‘XtDefaultForeground.’’

       colorBLMode (class ColorAttrMode)
               Specifies whether characters with the blink attribute should be
               displayed in color.  Note that setting colorMode  off  disables
               all colors, including this.  The default is ‘‘false.’’

       colorMode (class ColorMode)
               Specifies  whether  or not recognition of ANSI (ISO-6429) color
               change escape sequences should  be  enabled.   The  default  is
               ‘‘true.’’

       colorRV (class ColorRV)
               This  specifies  the color to use to display reverse characters
               if the ‘‘colorRVMode’’ resource is  enabled.   The  default  is
               ‘‘XtDefaultForeground.’’

       colorRVMode (class ColorAttrMode)
               Specifies  whether characters with the reverse attribute should
               be  displayed  in  color.   Note  that  setting  colorMode  off
               disables all colors, including this.  The default is ‘‘false.’’

       colorUL (class ColorUL)
               This  specifies  the  color  to  use  to   display   underlined
               characters  if  the  ‘‘colorULMode’’  resource is enabled.  The
               default is ‘‘XtDefaultForeground.’’

       colorULMode (class ColorAttrMode)
               Specifies  whether  characters  with  the  underline  attribute
               should be displayed in color or as underlined characters.  Note
               that setting  colorMode  off  disables  all  colors,  including
               underlining.  The default is ‘‘false.’’

       combiningChars (class CombiningChars)
               Specifies  the number of wide-characters which can be stored in
               a cell to overstrike (combine) with the base character  of  the
               cell.   This  can  be  set  to values in the range 0 to 4.  The
               default is ‘‘2’’.

       ctrlFKeys (class CtrlFKeys)
               In VT220 keyboard mode (see  sunKeyboard  resource),  specifies
               the  amount  by  which to shift F1-F12 given a control modifier
               (CTRL).  This allows you to generate key symbols for F10-F20 on
               a  Sun/PC  keyboard.   The  default is ‘‘10’’, which means that
               CTRL F1 generates the key symbol for F11.

       curses (class Curses)
               Specifies whether or not the last column bug in more(1)  should
               be worked around.  See the -cu option for details.  The default
               is ‘‘false.’’

       cursorBlink (class CursorBlink)
               Specifies whether to make the cursor  blink.   The  default  is
               ‘‘false.’’

       cursorColor (class CursorColor)
               Specifies the color to use for the text cursor.  The default is
               ‘‘XtDefaultForeground.’’  By default, xterm  attempts  to  keep
               this  color  from being the same as the background color, since
               it draws the cursor by filling the background of a  text  cell.
               The  same  restriction  applies  to control sequences which may
               change this color.

               Setting this resource overrides most of xterm’s adjustments  to
               cursor color.  It will still use reverse-video to disallow some
               cases, such as a black cursor on a black background.

       cursorOffTime (class CursorOffTime)
               Specifies the duration of the "off" part of  the  cursor  blink
               cycle-time  in  milliseconds.   The same timer is used for text
               blinking.  The default is 300.

       cursorOnTime (class CursorOnTime)
               Specifies the duration of the "on" part  of  the  cursor  blink
               cycle-time,  in  milliseconds.  The same timer is used for text
               blinking.  The default is 600.

       cutNewline (class CutNewline)
               If ‘‘false’’, triple clicking to select a line does not include
               the  Newline  at the end of the line.  If ‘‘true’’, the Newline
               is selected.  The default is ‘‘true.’’

       cutToBeginningOfLine (class CutToBeginningOfLine)
               If ‘‘false’’, triple clicking to select  a  line  selects  only
               from the current word forward.  If ‘‘true’’, the entire line is
               selected.  The default is ‘‘true.’’

       decTerminalID (class DecTerminalID)
               Specifies the emulation  level  (100=VT100,  220=VT220,  etc.),
               used  to  determine  the  type  of  response  to  a  DA control
               sequence.  Leading  non-digit  characters  are  ignored,  e.g.,
               "vt100" and "100" are the same.  The default is 100.

       deleteIsDEL (class DeleteIsDEL)
               Specifies  whether  the Delete key on the editing keypad should
               send DEL (127) or the VT220-style Remove escape sequence.   The
               default is ‘‘false,’’ for the latter.

       dynamicColors (class DynamicColors)
               Specifies  whether  or  not  escape  sequences to change colors
               assigned to different attributes are recognized.

       eightBitControl (class EightBitControl)
               Specifies whether or not control sequences sent by the terminal
               should  be  eight-bit  characters  or  escape  sequences.   The
               default is ‘‘false.’’

       eightBitInput (class EightBitInput)
               If ‘‘true’’, Meta characters (a single-byte character  combined
               with  the  Meta  modifier  key)  input  from  the  keyboard are
               presented as a single character with the eighth bit turned  on.
               The  terminal  is  put  into  8-bit  mode.   If ‘‘false’’, Meta
               characters are converted into a two-character sequence with the
               character  itself  preceded by ESC.  On startup, xterm tries to
               put the terminal into  7-bit  mode.   The  metaSendsEscape  and
               altSendsEscape  resources  may  override  this.  The default is
               ‘‘true.’’

               Generally keyboards do not have a key labeled "Meta", but "Alt"
               keys  are  common, and they are conventionally used for "Meta".
               If they were synonymous, it would have been reasonable to  name
               this  resource "altSendsEscape", reversing its sense.  For more
               background on this, see the meta function in curses.

               Note that the Alt key is not necessarily the same as  the  Meta
               modifier.    xmodmap  lists  your  key  modifiers.   X  defines
               modifiers for shift, (caps) lock and  control,  as  well  as  5
               additional  modifiers which are generally used to configure key
               modifiers.  xterm inspects the same  information  to  find  the
               modifier  associated  with either Meta key (left or right), and
               uses that key as the Meta modifier.   It  also  looks  for  the
               NumLock key, to recognize the modifier which is associated with
               that.

               If your xmodmap configuration uses the same keycodes  for  Alt-
               and  Meta-keys,  xterm  will  only see the Alt-key definitions,
               since those are tested before  Meta-keys.   NumLock  is  tested
               first.   It is important to keep these keys distinct; otherwise
               some of xterm’s functionality is not available.

       eightBitOutput (class EightBitOutput)
               Specifies whether or not eight-bit  characters  sent  from  the
               host  should  be  accepted as is or stripped when printed.  The
               default is ‘‘true,’’ which means that they are accepted as  is.

       faceName (class FaceName)
               Specify  the  pattern  for  fonts  selected  from  the FreeType
               library if support for that library was  compiled  into  xterm.
               There is no default.  If not specified, or if there is no match
               for both normal and bold fonts, xterm uses the font and related
               resources.

       faceNameDoublesize (class FaceNameDoublesize)
               Specify  an  double-width  font  for cases where an application
               requires this, e.g., in CJK applications.  There is no default.
               If   the  application  uses  double-wide  characters  and  this
               resource is not given, xterm  will use a scaled version of  the
               font given by faceName.

       faceSize (class FaceSize)
               Specify  the  pointsize  for  fonts  selected from the FreeType
               library if support for that library was  compiled  into  xterm.
               The  default is ‘‘14.’’  On the VT Fonts menu, this corresponds
               to the Default  entry.   You  can  specify  the  pointsize  for
               TrueType  fonts  selected  with  the  other  size-related  menu
               entries such as  Medium,  Huge,  etc.,  by  using  one  of  the
               following resource values.  If you do not specify a value, they
               default to ‘‘0.0’’, which causes xterm to use the ratio of font
               sizes  from  the  bitmap  font  resources  to obtain a TrueType
               pointsize.

       faceSize1 (class FaceSize1)
               Specifies the pointsize of the first alternative font.

       faceSize2 (class FaceSize2)
               Specifies the pointsize of the second alternative font.

       faceSize3 (class FaceSize3)
               Specifies the pointsize of the third alternative font.

       faceSize4 (class FaceSize4)
               Specifies the pointsize of the fourth alternative font.

       faceSize5 (class FaceSize5)
               Specifies the pointsize of the fifth alternative font.

       faceSize6 (class FaceSize6)
               Specifies the pointsize of the sixth alternative font.

       font (class Font)
               Specifies  the  name  of  the  normal  font.   The  default  is
               ‘‘fixed.’’

               See  the discussion of the locale resource, which describes how
               this font may be overridden.

               NOTE: some resource files use patterns such as
               *font: fixed

               which are overly broad, affecting both
               xterm.vt100.font

               and
               xterm.vt100.utf8fonts.font

               which is probably not what you intended.

       font1 (class Font1)
               Specifies the name of the first alternative font.

       font2 (class Font2)
               Specifies the name of the second alternative font.

       font3 (class Font3)
               Specifies the name of the third alternative font.

       font4 (class Font4)
               Specifies the name of the fourth alternative font.

       font5 (class Font5)
               Specifies the name of the fifth alternative font.

       font6 (class Font6)
               Specifies the name of the sixth alternative font.

       fontDoublesize (class FontDoublesize)
               Specifies whether xterm should attempt to use font  scaling  to
               draw  doublesize characters.  Some older font servers cannot do
               this  properly,  will  return  misleading  font  metrics.   The
               default   is   ‘‘true’’.   If  disabled,  xterm  will  simulate
               doublesize characters by drawing normal characters with  spaces
               between them.

       forceBoxChars (class ForceBoxChars)
               Specifies whether xterm should assume the normal and bold fonts
               have VT100 line-drawing characters:

               -    The fixed-pitch ISO-8859-*-encoded  fonts  used  by  xterm
                    normally have the VT100 line-drawing glyphs in cells 1-31.
                    Other fixed-pitch fonts may be more attractive,  but  lack
                    these glyphs.

               -    When  using an ISO-10646-1 font and the wideChars resource
                    is true, xterm uses the Unicode  glyphs  which  match  the
                    VT100 line-drawing glyphs.

               If  ‘‘false’’,  xterm checks for missing glyphs in the font and
               makes line-drawing characters directly as needed.  If ‘‘true’’,
               xterm  assumes  the  font  does  not  contain  the line-drawing
               characters, and draws them directly.  The default is ‘‘false.’’

       foreground (class Foreground)
               Specifies  the  color to use for displaying text in the window.
               Setting the class name instead of the instance name is an  easy
               way  to  have everything that would normally appear in the text
               color change color.  The default is ‘‘XtDefaultForeground.’’

       formatOtherKeys (class FormatOtherKeys)
               Overrides the format of the  escape  sequence  used  to  report
               modified keys with the modifyOtherKeys resource.

               0  send   modified  keys  as  parameters  for  function-key  27
                  (default).

               1  send modified keys as parameters for CSI u.

       freeBoldBox (class FreeBoldBox)
               Specifies whether xterm should assume the  bounding  boxes  for
               normal  and  bold  fonts  are  compatible.  If ‘‘false’’, xterm
               compares them and will reject choices of bold fonts that do not
               match  the  size of the normal font.  The default is ‘‘false’’,
               which means that the comparison is performed.

       geometry (class Geometry)
               Specifies the preferred size and position of the VT102  window.
               There is no default for this resource.

       highlightColor (class HighlightColor)
               Specifies  the  color  to  use  for  the background of selected
               (highlighted) text.   If  not  specified  (i.e.,  matching  the
               default  foreground),  reverse  video  is used.  The default is
               ‘‘XtDefaultForeground.’’

       highlightColorMode (class HighlightColorMode)
               Specifies  whether  xterm  should  use  highlightTextColor  and
               highlightColor  to  override the reversed foreground/background
               colors in a selection.  The default is unspecified: at startup,
               xterm checks if those resources are set to something other than
               the default foreground and  background  colors.   Setting  this
               resource disables the check.

               The  following  table shows the interaction of the highlighting
               resources, abbreviated as shown to fit in this page:

               HCM
                  highlightColorMode

               HR highlightReverse

               HBG
                  highlightColor

               HFG
                  highlightTextColor

               HCM       HR      HBG       HFG       Highlight
               ------------------------------------------------------
               false     false   default   default   bg/fg
               false     false   default   set       bg/fg
               false     false   set       default   fg/HBG
               false     false   set       set       fg/HBG
               ------------------------------------------------------
               false     true    default   default   bg/fg
               false     true    default   set       bg/fg
               false     true    set       default   fg/HBG
               false     true    set       set       fg/HBG
               ------------------------------------------------------
               true      false   default   default   bg/fg
               true      false   default   set       HFG/fg
               true      false   set       default   bg/HBG
               true      false   set       set       HFG/HBG
               ------------------------------------------------------
               true      true    default   default   fg/fg (useless)
               true      true    default   set       HFG/fg
               true      true    set       default   fg/HBG
               true      true    set       set       HFG/HBG
               ------------------------------------------------------
               default   false   default   default   bg/fg
               default   false   default   set       bg/fg
               default   false   set       default   fg/HBG
               default   false   set       set       HFG/HBG
               ------------------------------------------------------
               default   true    default   default   bg/fg
               default   true    default   set       bg/fg
               default   true    set       default   fg/HBG
               default   true    set       set       HFG/HBG
               ------------------------------------------------------

       highlightReverse (class HighlightReverse)
               Specifies whether xterm should reverse the selection foreground
               and  background  colors  when selecting text with reverse-video
               attribute.   This  applies  only  to  the  highlightColor   and
               highlightTextColor  resources,  e.g., to match the color scheme
               of xwsh.  If ‘‘true’’, xterm reverses the colors, If ‘‘false’’,
               xterm does not reverse colors, The default is ‘‘true.’’

       highlightSelection (class HighlightSelection)
               If ‘‘false’’, selecting with the mouse highlights all positions
               on the screen between the beginning of the  selection  and  the
               current  position.   If  ‘‘true’’,  xterm  highlights  only the
               positions that contain text that can be selected.  The  default
               is ‘‘false.’’

               Depending  on  the  way  your applications write to the screen,
               there may be trailing blanks on a line.  Xterm stores  data  as
               it  is  shown  on  the screen.  Erasing the display changes the
               internal state of each cell so it is not considered a blank for
               the  purpose of selection.  Blanks written since the last erase
               are selectable.  If you do not wish to have trailing blanks  in
               a selection, use the trimSelection resource.

       highlightTextColor (class HighlightTextColor)
               Specifies  the  color  to  use  for  the foreground of selected
               (highlighted) text.   If  not  specified  (i.e.,  matching  the
               default  background),  reverse  video  is used.  The default is
               ‘‘XtDefaultBackground.’’

       hpLowerleftBugCompat (class HpLowerleftBugCompat)
               Specifies whether to work around  a  bug  in  HP’s  xdb,  which
               ignores  termcap  and  always  sends ESC F to move to the lower
               left corner.  ‘‘true’’ causes xterm to interpret  ESC  F  as  a
               request  to  move  to the lower left corner of the screen.  The
               default is ‘‘false.’’

       i18nSelections (class I18nSelections)
               If false, xterm will never request the targets COMPOUND_TEXT or
               TEXT.  The default is ‘‘true.’’ It may be set to false in order
               to work around ICCCM violations by other X clients.

       iconBorderColor (class BorderColor)
               Specifies the border color for the active icon window  if  this
               feature  is  compiled into xterm.  Not all window managers will
               make the icon border visible.

       iconBorderWidth (class BorderWidth)
               Specifies the border width for the active icon window  if  this
               feature  is  compiled  into  xterm.  The default is 2.  Not all
               window managers will make the border visible.

       iconFont (class IconFont)
               Specifies the font for the miniature  active  icon  window,  if
               this feature is compiled into xterm.  The default is "nil2".

       initialFont (class InitialFont)
               Specifies  which  of  the VT100 fonts to use initially.  Values
               are the same as for the set-vt-font  action.   The  default  is
               ‘‘d’’, i.e., "default".

       internalBorder (class BorderWidth)
               Specifies  the  number of pixels between the characters and the
               window border.  The default is 2.

       italicULMode (class ColorAttrMode)
               Specifies  whether  characters  with  the  underline  attribute
               should  be  displayed  in  an  italic  font  or  as  underlined
               characters.  It is implemented only for TrueType fonts.

       jumpScroll (class JumpScroll)
               Specifies whether or not jump  scroll  should  be  used.   This
               corresponds  to the VT102 DECSCLM private mode.  The default is
               ‘‘true.’’

       keepSelection (class KeepSelection)
               Specifies whether xterm will keep the selection even after  the
               selected  area was touched by some output to the terminal.  The
               default is ‘‘false’’.

       keyboardDialect (class KeyboardDialect)
               Specifies the initial keyboard dialect, as well as the  default
               value  when the terminal is reset.  The value given is the same
               as the final character in the control  sequences  which  change
               character  sets.  The default is ‘‘B’’, which corresponds to US
               ASCII.

       nameKeymap (class NameKeymap)
               See the discussion of the keymap() action.

       limitResize (class LimitResize)
               Limits resizing of the screen via control sequence to  a  given
               multiple of the display dimensions.  The default is ‘‘1’’.

       locale (class Locale)
               Specifies  how to use luit, an encoding converter between UTF-8
               and locale encodings.  The resource value (ignoring  case)  may
               be:

               true
                   xterm  will  use  the  encoding  specified  by  the  users’
                   LC_CTYPE locale (i.e., LC_ALL, LC_CTYPE, or LANG variables)
                   as  far  as  possible.  This is realized by always enabling
                   UTF-8 mode and invoking luit in non-UTF-8 locales.

               medium
                   xterm will follow users’ LC_CTYPE locale  only  for  UTF-8,
                   east  Asian, and Thai locales, where the encodings were not
                   supported by conventional 8bit mode  with  changing  fonts.
                   For other locales, xterm will use conventional 8bit mode.

               checkfont
                   If  mini-luit is compiled-in, xterm will check if a Unicode
                   font has been specified.  If so, it checks if the character
                   encoding  for  the  current  locale  is  POSIX,  Latin-1 or
                   Latin-9, uses the appropriate mapping to support those with
                   the  Unicode font.  For other encodings, xterm assumes that
                   UTF-8 encoding is required.

               false
                   xterm  will  use  conventional  8bit  mode  or  UTF-8  mode
                   according to utf8 resource or -u8 option.

               Any  other  value, e.g., ‘‘UTF-8’’ or ‘‘ISO8859-2’’, is assumed
               to be an encoding name; luit will be  invoked  to  support  the
               encoding.   The  actual  list of supported encodings depends on
               luit.  The default is ‘‘medium’’.

               Regardless of your locale and encoding, you need an ISO-10646-1
               font to display the result.  Your configuration may not include
               this font, or locale-support by xterm may not  be  needed.   At
               startup,  xterm  uses  a  mechanism  equivalent to the load-vt-
               fonts(utf8Fonts, Utf8Fonts)   action   to   load   font    name
               subresources  of  the VT100 widget.  That is, resource patterns
               such as "*vt100.utf8Fonts.font" will be loaded,  and  (if  this
               resource  is  enabled),  override  the  normal  fonts.   If  no
               subresources are found, the normal fonts such as "*vt100.font",
               etc.,  are used.  The resource files distributed with xterm use
               ISO-10646-1 fonts, but do not rely on them unless you are using
               the locale mechanism.

       localeFilter (class LocaleFilter)
               Specifies  the  file  name  for  the encoding converter from/to
               locale encodings and UTF-8 which is used with the -lc option or
               locale  resource.   The  help  message shown by ‘‘xterm -help’’
               lists  the  default  value,  which  depends  on   your   system
               configuration.

       loginShell (class LoginShell)
               Specifies  whether  or  not  the  shell to be run in the window
               should be started as a login shell.  The default is  ‘‘false.’’

       marginBell (class MarginBell)
               Specifies  whether or not the bell should be rung when the user
               types near the right margin.  The default is ‘‘false.’’

       metaSendsEscape (class MetaSendsEscape)
               If ‘‘true’’, Meta characters (a  character  combined  with  the
               Meta  modifier key) are converted into a two-character sequence
               with the character itself preceded by  ESC.   This  applies  as
               well  to function key control sequences, unless xterm sees that
               Meta is used in your  key  translations.   If  ‘‘false’’,  Meta
               characters input from the keyboard are handled according to the
               eightBitInput resource.  The default is ‘‘false.’’

       mkSamplePass (class MkSamplePass)
               If mkSampleSize is nonzero,  and  mkWidth  (and  cjkWidth)  are
               false,  on  startup  xterm  compares its built-in tables to the
               system’s wide character width data to decide if it will use the
               system’s  data.   It  tests  the  first  mkSampleSize character
               values, and allows up to  mkSamplePass  mismatches  before  the
               test fails.  The default (for the allowed number of mismatches)
               is 256.

       mkSampleSize (class MkSampleSize)
               With mkSamplePass, this  specifies  a  startup  test  used  for
               initializing  wide  character  width calculations.  The default
               (number of characters to check) is 1024.

       mkWidth (class MkWidth)
               Specifies whether xterm should use a built-in  version  of  the
               wide  character  width  calculation.   See  also  the  cjkWidth
               resource which can override this.  The default is ‘‘false.’’

               Here is a summary of the resources which control the choice  of
               wide character width calculation:

               cjkWidth   mkWidth   Action
               ---------------------------------------------------------------
               false      false     use system tables subject to mkSamplePass
               false      true      use built-in tables
               true       false     use built-in CJK tables
               true       true      use built-in CJK tables

       modifyCursorKeys (class ModifyCursorKeys)
               Tells  how  to  handle the special case where Control-, Shift-,
               Alt- or Meta-modifiers are used  to  add  a  parameter  to  the
               escape  sequence  returned  by  a  cursor-key.   The default is
               ‘‘2’’:

               Set it to -1 to disable it.
               Set it to 0 to use the old/obsolete behavior.
               Set it to 1 to prefix modified sequences with CSI.
               Set it to 2 to force the modifier to be the second parameter if
               it would otherwise be the first.
               Set  it to 3 to mark the sequence with a ’>’ to hint that it is
               private.

       modifyFunctionKeys (class ModifyFunctionKeys)
               Tells how to handle the special case  where  Control-,  Shift-,
               Alt-  or  Meta-modifiers  are  used  to  add a parameter to the
               escape sequence returned by  a  (numbered)  function-key.   The
               default   is   ‘‘2’’.   The  resource  values  are  similar  to
               modifyCursorKeys:

               Set it to -1 to permit the user  to  use  shift-  and  control-
               modifiers  to  construct  function-key strings using the normal
               encoding scheme.
               Set it to 0 to use the old/obsolete behavior.
               Set it to 1 to prefix modified sequences with CSI.
               Set it to 2 to force the modifier to be the second parameter if
               it would otherwise be the first.
               Set  it to 3 to mark the sequence with a ’>’ to hint that it is
               private.

               If modifyFunctionKeys is zero, xterm uses Control-  and  Shift-
               modifiers to allow the user to construct numbered function-keys
               beyond the set provided by the keyboard:

               Control
                    adds the value given by the ctrlFKeys resource.

               Shift
                    adds twice the value given by the ctrlFKeys resource.

               Control/Shift
                    adds  three  times  the  value  given  by  the   ctrlFKeys
                    resource.

               As  a  special  case,  legacy (when oldFunctionKeys is true) or
               vt220 (when sunKeyboard is true) keyboards interpret  only  the
               Control-modifier   when  constructing  numbered  function-keys.
               This is done to provide compatible keyboards for DEC VT220  and
               related terminals that implement user-defined keys (UDK).

       modifyOtherKeys (class ModifyOtherKeys)
               Like  modifyCursorKeys,  tells  xterm  to  construct  an escape
               sequence  for  other  keys  (such  as  "2")  when  modified  by
               Control-,  Alt- or Meta-modifiers.  This feature does not apply
               to function keys and well-defined  keys  such  as  ESC  or  the
               control keys.  The default is ‘‘0’’:

               0    disables this feature.

               1    enables  this feature for keys except for those with well-
                    known behavior, e.g.,  Tab,  Backarrow  and  some  special
                    control  character  cases,  e.g.,  Control-Space to make a
                    NUL.

               2    enables this feature for  keys  including  the  exceptions
                    listed.

       multiClickTime (class MultiClickTime)
               Specifies  the maximum time in milliseconds between multi-click
               select events.  The default is 250 milliseconds.

       multiScroll (class MultiScroll)
               Specifies   whether   or   not   scrolling   should   be   done
               asynchronously.  The default is ‘‘false.’’

       nMarginBell (class Column)
               Specifies  the  number  of  characters from the right margin at
               which the margin bell should  be  rung,  when  enabled  by  the
               marginBell resource.  The default is 10.

       numLock (class NumLock)
               If ‘‘true’’, xterm checks if NumLock is used as a modifier (see
               xmodmap(1)).  If so, this modifier  is  used  to  simplify  the
               logic  when  implementing  special  NumLock for the sunKeyboard
               resource.  Also (when sunKeyboard is false), similar  logic  is
               used  to  find  the modifier associated with the left and right
               Alt keys.  The default is ‘‘true.’’

       oldXtermFKeys (class OldXtermFKeys)
               If ‘‘true’’, xterm will use  old-style  control  sequences  for
               function  keys  F1  to  F4, for compatibility with X Consortium
               xterm.  Otherwise, it uses the VT100-style  codes  for  PF1  to
               PF4.  The default is ‘‘false.’’

       on2Clicks (class On2Clicks)

       on3Clicks (class On3Clicks)

       on4Clicks (class On4Clicks)

       on5Clicks (class On5Clicks)
               Specify  selection  behavior  in  response  to  multiple  mouse
               clicks.   A  single  mouse  click  is  always  interpreted   as
               described   in  the  SELECTION  section  (see  POINTER  USAGE).
               Multiple mouse clicks (using the  button  which  activates  the
               select-start  action) are interpreted according to the resource
               values of on2Clicks, etc.  The resource value  can  be  one  of
               these:

               word
                  Select  a  ‘‘word’’ as determined by the charClass resource.
                  See the CHARACTER CLASSES section.

               line
                  Select a line (counting wrapping).

               group
                  Select a group of adjacent lines (counting  wrapping).   The
                  selection stops on a blank line.

               page
                  Select all visible lines, i.e., the page.

               all
                  Select all lines, i.e., including the saved lines.

               regex
                  Select  a  ‘‘word’’  as determined by the regular expression
                  which follows in the resource value.

               none
                  No selection action is associated with this resource.  xterm
                  interprets  it as the end of the list.  For example, you may
                  use it to disable triple (and higher)  clicking  by  setting
                  on3Clicks to ‘‘none’’.

               The default values for on2Clicks and on3Clicks are ‘‘word’’ and
               ‘‘line’’,  respectively.   There  is  no  default   value   for
               on4Clicks  or  on5Clicks,  making  those inactive.  On startup,
               xterm determines the maximum number of clicks by the  onXClicks
               resource values which are set.

       pointerColor (class PointerColor)
               Specifies  the foreground color of the pointer.  The default is
               ‘‘XtDefaultForeground.’’

       pointerColorBackground (class PointerColorBackground)
               Specifies the background color of the pointer.  The default  is
               ‘‘XtDefaultBackground.’’

       pointerMode (class PointerMode)
               Specifies when the pointer may be hidden as the user types.  It
               will be redisplayed if the user moves the mouse, or clicks  one
               of its buttons.

               0  never.  This is the default.

               1  the  application  running  in  xterm has not activated mouse
                  mode.

               2  always.

       pointerShape (class Cursor)
               Specifies the name of the shape of the pointer.  The default is
               ‘‘xterm.’’

       popOnBell (class PopOnBell)
               Specifies  whether the window would be raised when Control-G is
               received.  The default is ‘‘false.’’

       printAttributes (class PrintAttributes)
               Specifies whether to print graphic attributes  along  with  the
               text.   A  real  DEC  VTxxx  terminal will print the underline,
               highlighting codes but your printer may not  handle  these.   A
               ‘‘0’’  disables  the attributes.  A ‘‘1’’ prints the normal set
               of  attributes  (bold,  underline,  inverse   and   blink)   as
               VT100-style  control  sequences.   A  ‘‘2’’  prints  ANSI color
               attributes as well.  The default is ‘‘1.’’

       printerAutoClose (class PrinterAutoClose)
               If ‘‘true’’, xterm will close the printer  (a  pipe)  when  the
               application  switches  the  printer  offline  with a Media Copy
               command.  The default is ‘‘false.’’

       printerCommand (class PrinterCommand)
               Specifies a shell command to which xterm will open a pipe  when
               the first MC (Media Copy) command is initiated.  The default is
               a blank string.  If the resource value  is  given  as  a  blank
               string, the printer is disabled.

       printerControlMode (class PrinterControlMode)
               Specifies  the printer control mode.  A ‘‘1’’ selects autoprint
               mode, which causes xterm to print a line from the  screen  when
               you  move  the cursor off that line with a line feed, form feed
               or vertical tab character, or an  autowrap  occurs.   Autoprint
               mode  is overridden by printer controller mode (a ‘‘2’’), which
               causes all of the output to be directed to  the  printer.   The
               default is ‘‘0.’’

       printerExtent (class PrinterExtent)
               Controls  whether  a  print page function will print the entire
               page (true), or only  the  the  portion  within  the  scrolling
               margins (false).  The default is ‘‘false.’’

       printerFormFeed (class PrinterFormFeed)
               Controls  whether a form feed is sent to the printer at the end
               of a print page function.  The default is ‘‘false.’’

       quietGrab (class QuietGrab)
               Controls whether the cursor is repainted  when  NotifyGrab  and
               NotifyUngrab  event  types are received during change of focus.
               The default is ‘‘false.’’

       renderFont (class RenderFont)
               If xterm is built with the Xft library, this  controls  whether
               the faceName resource is used.  The default is ‘‘true.’’

       resizeGravity (class ResizeGravity)
               Affects the behavior when the window is resized to be taller or
               shorter.  NorthWest specifies that the top line of text on  the
               screen  stay  fixed.   If the window is made shorter, lines are
               dropped from the bottom; if the window is  made  taller,  blank
               lines  are  added  at  the bottom.  This is compatible with the
               behavior in R4.  SouthWest (the  default)  specifies  that  the
               bottom line of text on the screen stay fixed.  If the window is
               made taller, additional saved lines will be scrolled down  onto
               the  screen;  if  the  window  is  made  shorter, lines will be
               scrolled off the top of the screen, and  the  top  saved  lines
               will be dropped.

       reverseVideo (class ReverseVideo)
               Specifies  whether  or  not  reverse video should be simulated.
               The default is ‘‘false.’’

       reverseWrap (class ReverseWrap)
               Specifies whether or not reverse-wraparound should be  enabled.
               This  corresponds  to  xterm’s private mode 45.  The default is
               ‘‘false.’’

       rightScrollBar (class RightScrollBar)
               Specifies whether or not the scrollbar should be  displayed  on
               the right rather than the left.  The default is ‘‘false.’’

       saveLines (class SaveLines)
               Specifies  the  number  of  lines to save beyond the top of the
               screen when a scrollbar is turned on.  The default is 64.

       scrollBar (class ScrollBar)
               Specifies whether or not the  scrollbar  should  be  displayed.
               The default is ‘‘false.’’

       scrollBarBorder (class ScrollBarBorder)
               Specifies the width of the scrollbar border.  Note that this is
               drawn to overlap the border of the xterm window.  Modifying the
               scrollbar’s  border  affects  only  the  line between the VT100
               widget and the scrollbar.  The default value is 1.

       scrollKey (class ScrollCond)
               Specifies whether or not pressing a  key  should  automatically
               cause  the  scrollbar  to  go  to  the  bottom of the scrolling
               region.  This corresponds to xterm’s private  mode  1011.   The
               default is ‘‘false.’’

       scrollLines (class ScrollLines)
               Specifies  the number of lines that the scroll-back and scroll-
               forw actions should use as a default.  The default value is  1.

       scrollTtyOutput (class ScrollCond)
               Specifies   whether  or  not  output  to  the  terminal  should
               automatically cause the scrollbar to go to the  bottom  of  the
               scrolling region.  The default is ‘‘true.’’

       selectToClipboard (class SelectToClipboard)
               Tells  xterm whether to use the PRIMARY or CLIPBOARD for SELECT
               tokens in the selection mechanism.  The set-select  action  can
               change this at runtime, allowing the user to work with programs
               that handle only one  of  these  mechanisms.   The  default  is
               ‘‘false’’, which tells it to use PRIMARY.

       shiftFonts (class ShiftFonts)
               Specifies  whether  to  enable the actions larger-vt-font() and
               smaller-vt-font(), which are  normally  bound  to  the  shifted
               KP_Add and KP_Subtract.  The default is ‘‘true.’’

       showBlinkAsBold (class ShowBlinkAsBold)
               Tells  xterm  whether  to display text with blink-attribute the
               same as bold.  If xterm has  not  been  configured  to  support
               blinking  text,  the default is ‘‘true.’’, which corresponds to
               older versions of xterm, otherwise the default is ‘‘false.’’

       showMissingGlyphs (class ShowMissingGlyphs)
               Tells xterm whether to display a box outlining places  where  a
               character  has been used that the font does not represent.  The
               default is ‘‘false.’’

       signalInhibit (class SignalInhibit)
               Specifies whether or not the entries in  the  ‘‘Main  Options’’
               menu  for  sending  signals to xterm should be disallowed.  The
               default is ‘‘false.’’

       tekGeometry (class Geometry)
               Specifies the preferred size  and  position  of  the  Tektronix
               window.  There is no default for this resource.

       tekInhibit (class TekInhibit)
               Specifies whether or not the escape sequence to enter Tektronix
               mode should be ignored.  The default is ‘‘false.’’

       tekSmall (class TekSmall)
               Specifies whether or not the Tektronix mode window should start
               in its smallest size if no explicit geometry is given.  This is
               useful when running xterm on displays with small screens.   The
               default is ‘‘false.’’

       tekStartup (class TekStartup)
               Specifies  whether  or  not  xterm should start up in Tektronix
               mode.  The default is ‘‘false.’’

       tiXtraScroll (class TiXtraScroll)
               Specifies whether xterm  should  scroll  to  a  new  page  when
               processing  the  ti  termcap entry, i.e., the private modes 47,
               1047 or 1049.   This  is  only  in  effect  if  titeInhibit  is
               ‘‘true’’,  because  the  intent  of this option is to provide a
               picture  of  the  full-screen  application’s  display  on   the
               scrollback  without  wiping  out  the  text that would be shown
               before the application was initialized.  The default  for  this
               resource is ‘‘false.’’

       titeInhibit (class TiteInhibit)
               Specifies  whether or not xterm should remove ti and te termcap
               entries (used to switch between alternate screens on startup of
               many  screen-oriented  programs)  from  the TERMCAP string.  If
               set, xterm also ignores the escape sequence to  switch  to  the
               alternate  screen.  Xterm supports terminfo in a different way,
               supporting composite control sequences (also known  as  private
               modes)  1047,  1048  and 1049 which have the same effect as the
               original 47 control sequence.  The default for this resource is
               ‘‘false.’’

       translations (class Translations)
               Specifies  the  key  and button bindings for menus, selections,
               ‘‘programmed strings,’’ etc.  The translations resource,  which
               provides much of xterm’s configurability, is a feature of the X
               Toolkit Intrinsics library (Xt).  See the ACTIONS section.

       trimSelection (class TrimSelection)
               If you set highlightSelection, you can see the  text  which  is
               selected,  including  any trailing spaces.  Clearing the screen
               (or a line) resets it to a state containing  no  spaces.   Some
               lines  may  contain  trailing spaces when an application writes
               them to the screen.  However, you may not wish to  paste  lines
               with  trailing  spaces.   If  this resource is true, xterm will
               trim trailing spaces from text which is selected.  It does  not
               affect  spaces which result in a wrapped line, nor will it trim
               the trailing newline  from  your  selection.   The  default  is
               ‘‘false.’’

       underLine (class UnderLine)
               This specifies whether or not text with the underline attribute
               should  be  underlined.   It  may  be  desirable   to   disable
               underlining   when  color  is  being  used  for  the  underline
               attribute.  The default is ‘‘true.’’

       useClipping (class UseClipping)
               Tell xterm whether to use clipping to keep from producing  dots
               outside  the text drawing area.  Originally used to work around
               for overstriking effects, this is also needed to work with some
               incorrectly-sized fonts.  The default is ‘‘true.’’

       utf8 (class Utf8)
               This  specifies  whether  xterm will run in UTF-8 mode.  If you
               set this resource, xterm also sets the wideChars resource as  a
               side-effect.   The  resource  is  an integer, expected to range
               from 0 to 3:

               0  UTF-8 mode is initially off.  The  command-line  option  +u8
                  sets  the  resource  to  this  value.   Escape sequences for
                  turning UTF-8 mode on/off are allowed.

               1  UTF-8 mode is initially on.  Escape  sequences  for  turning
                  UTF-8 mode on/off are allowed.

               2  The command-line option -u8 sets the resource to this value.
                  Escape sequences for turning UTF-8 mode on/off are  ignored.

               3  This  is  the  default value of the resource.  It is changed
                  during  initialization  depending  on  whether  the   locale
                  resource  was  set,  to 0 or 2.  See the locale resource for
                  additional discussion of non-UTF-8 locales.

               If you want to set the value of utf8,  it  should  be  in  this
               range.   Other  nonzero  values  are treated the same as ‘‘1’’,
               i.e., UTF-8 mode is initially  on,  and  escape  sequences  for
               turning UTF-8 mode on/off are allowed.

       utf8Fonts (class Utf8Fonts)
               See the discussion of the locale resource.

       utf8Latin1 (class Utf8Latin1)
               If true, allow an ISO-8859-1 normal font to be combined with an
               ISO-10646 font if the latter is given via the -fw option or its
               corresponding resource value.  The default is ‘‘false.’’

       utf8Title (class Utf8Title)
               Applications  can  set  xterm’s  title  by  writing  a  control
               sequence.  Normally this control  sequence  follows  the  VT220
               convention,  which  encodes the string in ISO-8859-1 and allows
               for an 8-bit string terminator.  If xterm is started in a UTF-8
               locale,  it  translates  the ISO-8859-1 string to UTF-8 to work
               with the X libraries which assume the string is UTF-8.

               However, some users may wish to write a title string encoded in
               UTF-8.   Set  this  resource to ‘‘true’’ to allow UTF-8 encoded
               title strings.  That cancels the translation to UTF-8, allowing
               UTF-8 strings to be displayed as is.

               The default is ‘‘false.’’

       veryBoldColors (class VeryBoldColors)
               Specifies  whether  to  combine  video  attributes  with colors
               specified  by  colorBD,  colorBL,  colorRV  and  colorUL.   The
               resource value is the sum of values for each attribute:
                 1 for reverse,
                 2 for underline,
                 4 for bold and
                 8 for blink.

               The default is ‘‘0.’’

       visualBell (class VisualBell)
               Specifies whether or not a visible bell (i.e., flashing) should
               be used instead of an audible bell when Control-G is  received.
               The default is ‘‘false.’’

       visualBellDelay (class VisualBellDelay)
               Number  of milliseconds to delay when displaying a visual bell.
               Default is 100.  If set to zero, no visual bell  is  displayed.
               This  is useful for very slow displays, e.g., an LCD display on
               a laptop.

       vt100Graphics (class VT100Graphics)
               This specifies  whether  xterm  will  interpret  VT100  graphic
               character escape sequences while in UTF-8 mode.  The default is
               ‘‘true’’, to provide support for various legacy applications.

       wideBoldFont (class WideBoldFont)
               This option specifies the font to be used for  displaying  bold
               wide  text.  By default, it will attempt to use a font twice as
               wide as the font that will be used to draw bold  text.   If  no
               doublewidth font is found, it will improvise, by stretching the
               bold font.

       wideChars (class WideChars)
               Specifies if xterm should respond  to  control  sequences  that
               process 16-bit characters.  The default is ‘‘false.’’

       wideFont (class WideFont)
               This  option  specifies the font to be used for displaying wide
               text.  By default, it will attempt to use a font twice as  wide
               as  the  font  that  will  be  used to draw normal text.  If no
               doublewidth font is found, it will improvise, by stretching the
               normal font.

       ximFont (class XimFont)
               This  option  specifies  the font to be used for displaying the
               preedit string in the "OverTheSpot" input method.

               In "OverTheSpot"  preedit  type,  the  preedit  (preconversion)
               string  is  displayed at the position of the cursor.  It is the
               XIM server’s responsibility to display the preedit string.  The
               XIM  client  must inform the XIM server of the cursor position.
               For best results, the preedit string must be displayed  with  a
               proper  font.   Therefore,  xterm informs the XIM server of the
               proper font.  The font is be supplied  by  a  "fontset",  whose
               default  value  is "*".  This matches every font, the X library
               automatically chooses fonts with proper charsets.  The  ximFont
               resource is provided to override this default font setting.

   Tek4014 Widget Resources
       The  following  resources  are  specified as part of the tek4014 widget
       (class  Tek4014).   These   are   specified   by   patterns   such   as
       "XTerm.tek4014.NAME":

       font2 (class Font)
               Specifies font number 2 to use in the Tektronix window.

       font3 (class Font)
               Specifies font number 3 to use in the Tektronix window.

       fontLarge (class Font)
               Specifies the large font to use in the Tektronix window.

       fontSmall (class Font)
               Specifies the small font to use in the Tektronix window.

       ginTerminator (class GinTerminator)
               Specifies  what  character(s)  should  follow  a  GIN report or
               status report.  The possibilities are ‘‘none,’’ which sends  no
               terminating   characters,   ‘‘CRonly,’’  which  sends  CR,  and
               ‘‘CR&EOT,’’ which sends  both  CR  and  EOT.   The  default  is
               ‘‘none.’’

       height (class Height)
               Specifies the height of the Tektronix window in pixels.

       initialFont (class InitialFont)
               Specifies  which  of the four Tektronix fonts to use initially.
               Values are the  same  as  for  the  set-tek-text  action.   The
               default is ‘‘large.’’

       width (class Width)
               Specifies the width of the Tektronix window in pixels.

   Menu Resources
       The resources that may be specified for the various menus are described
       in the documentation for the Athena SimpleMenu widget.   The  name  and
       classes  of  the  entries  in  each  of  the  menus  are  listed below.
       Resources named "lineN" where N is a number are separators  with  class
       SmeLine.

       The mainMenu has the following entries:

       toolbar (class SmeBSB)
               This entry invokes the set-toolbar(toggle) action.

       securekbd (class SmeBSB)
               This entry invokes the secure() action.

       allowsends (class SmeBSB)
               This entry invokes the allow-send-events(toggle) action.

       redraw (class SmeBSB)
               This entry invokes the redraw() action.

       logging (class SmeBSB)
               This entry invokes the logging(toggle) action.

       print (class SmeBSB)
               This entry invokes the print() action.

       print-redir (class SmeBSB)
               This entry invokes the print-redir() action.

       8-bit-control (class SmeBSB)
               This entry invokes the set-8-bit-control(toggle) action.

       backarrow key (class SmeBSB)
               This entry invokes the set-backarrow(toggle) action.

       num-lock (class SmeBSB)
               This entry invokes the set-num-lock(toggle) action.

       alt-esc (class SmeBSB)
               This entry invokes the alt-sends-escape(toggle) action.

       meta-esc (class SmeBSB)
               This entry invokes the meta-sends-escape(toggle) action.

       delete-is-del (class SmeBSB)
               This entry invokes the delete-is-del(toggle) action.

       oldFunctionKeys (class SmeBSB)
               This entry invokes the old-function-keys(toggle) action.

       hpFunctionKeys (class SmeBSB)
               This entry invokes the hp-function-keys(toggle) action.

       scoFunctionKeys (class SmeBSB)
               This entry invokes the sco-function-keys(toggle) action.

       sunFunctionKeys (class SmeBSB)
               This entry invokes the sun-function-keys(toggle) action.

       sunKeyboard (class SmeBSB)
               This entry invokes the sunKeyboard(toggle) action.

       suspend (class SmeBSB)
               This entry invokes the send-signal(tstp) action on systems that
               support job control.

       continue (class SmeBSB)
               This entry invokes the send-signal(cont) action on systems that
               support job control.

       interrupt (class SmeBSB)
               This entry invokes the send-signal(int) action.

       hangup (class SmeBSB)
               This entry invokes the send-signal(hup) action.

       terminate (class SmeBSB)
               This entry invokes the send-signal(term) action.

       kill (class SmeBSB)
               This entry invokes the send-signal(kill) action.

       quit (class SmeBSB)
               This entry invokes the quit() action.

       The vtMenu has the following entries:

       scrollbar (class SmeBSB)
               This entry invokes the set-scrollbar(toggle) action.

       jumpscroll (class SmeBSB)
               This entry invokes the set-jumpscroll(toggle) action.

       reversevideo (class SmeBSB)
               This entry invokes the set-reverse-video(toggle) action.

       autowrap (class SmeBSB)
               This entry invokes the set-autowrap(toggle) action.

       reversewrap (class SmeBSB)
               This entry invokes the set-reversewrap(toggle) action.

       autolinefeed (class SmeBSB)
               This entry invokes the set-autolinefeed(toggle) action.

       appcursor (class SmeBSB)
               This entry invokes the set-appcursor(toggle) action.

       appkeypad (class SmeBSB)
               This entry invokes the set-appkeypad(toggle) action.

       scrollkey (class SmeBSB)
               This entry invokes the set-scroll-on-key(toggle) action.

       scrollttyoutput (class SmeBSB)
               This entry invokes the set-scroll-on-tty-output(toggle) action.

       allow132 (class SmeBSB)
               This entry invokes the set-allow132(toggle) action.

       cursesemul (class SmeBSB)
               This entry invokes the set-cursesemul(toggle) action.

       visualbell (class SmeBSB)
               This entry invokes the set-visualbell(toggle) action.

       bellIsUrgent (class SmeBSB)
               This entry invokes the set-bellIsUrgent(toggle) action.

       poponbell (class SmeBSB)
               This entry invokes the set-poponbell(toggle) action.

       cursorblink (class SmeBSB)
               This entry invokes the set-cursorblink(toggle) action.

       titeInhibit (class SmeBSB)
               This entry invokes the set-titeInhibit(toggle) action.

       activeicon (class SmeBSB)
               This entry toggles active icons on and off if this feature  was
               compiled  into  xterm.  It is enabled only if xterm was started
               with the command line option +ai or the activeIcon resource  is
               set to ‘‘true.’’

       softreset (class SmeBSB)
               This entry invokes the soft-reset() action.

       hardreset (class SmeBSB)
               This entry invokes the hard-reset() action.

       clearsavedlines (class SmeBSB)
               This entry invokes the clear-saved-lines() action.

       tekshow (class SmeBSB)
               This entry invokes the set-visibility(tek,toggle) action.

       tekmode (class SmeBSB)
               This entry invokes the set-terminal-type(tek) action.

       vthide (class SmeBSB)
               This entry invokes the set-visibility(vt,off) action.

       altscreen (class SmeBSB)
               This entry invokes the set-altscreen(toggle) action.

       The fontMenu has the following entries:

       fontdefault (class SmeBSB)
               This entry invokes the set-vt-font(d) action.

       font1 (class SmeBSB)
               This entry invokes the set-vt-font(1) action.

       font2 (class SmeBSB)
               This entry invokes the set-vt-font(2) action.

       font3 (class SmeBSB)
               This entry invokes the set-vt-font(3) action.

       font4 (class SmeBSB)
               This entry invokes the set-vt-font(4) action.

       font5 (class SmeBSB)
               This entry invokes the set-vt-font(5) action.

       font6 (class SmeBSB)
               This entry invokes the set-vt-font(6) action.

       fontescape (class SmeBSB)
               This entry invokes the set-vt-font(e) action.

       fontsel (class SmeBSB)
               This entry invokes the set-vt-font(s) action.

       font-linedrawing (class SmeBSB)
               This entry invokes the set-font-linedrawing(s) action.

       font-doublesize (class SmeBSB)
               This entry invokes the set-font-doublesize(s) action.

       render-font (class SmeBSB)
               This entry invokes the set-render-font(s) action.

       utf8-mode (class SmeBSB)
               This entry invokes the set-utf8-mode(s) action.

       utf8-title (class SmeBSB)
               This entry invokes the set-utf8-title(s) action.

       The tekMenu has the following entries:

       tektextlarge (class SmeBSB)
               This entry invokes the set-tek-text(large) action.

       tektext2 (class SmeBSB)
               This entry invokes the set-tek-text(2) action.

       tektext3 (class SmeBSB)
               This entry invokes the set-tek-text(3) action.

       tektextsmall (class SmeBSB)
               This entry invokes the set-tek-text(small) action.

       tekpage (class SmeBSB)
               This entry invokes the tek-page() action.

       tekreset (class SmeBSB)
               This entry invokes the tek-reset() action.

       tekcopy (class SmeBSB)
               This entry invokes the tek-copy() action.

       vtshow (class SmeBSB)
               This entry invokes the set-visibility(vt,toggle) action.

       vtmode (class SmeBSB)
               This entry invokes the set-terminal-type(vt) action.

       tekhide (class SmeBSB)
               This entry invokes the set-visibility(tek,toggle) action.

   Scrollbar Resources
       The  following  resources  are  useful  when  specified  for the Athena
       Scrollbar widget:

       thickness (class Thickness)
               Specifies the width in pixels of the scrollbar.

       background (class Background)
               Specifies the color to use for the background of the scrollbar.

       foreground (class Foreground)
               Specifies the color to use for the foreground of the scrollbar.
               The ‘‘thumb’’ of the scrollbar is a simple checkerboard pattern
               alternating pixels for foreground and background color.

POINTER USAGE

       Once  the  VT102 window is created, xterm allows you to select text and
       copy it within the same or other windows.

   SELECTION
       The selection functions are invoked when the pointer buttons  are  used
       with  no modifiers, and when they are used with the ‘‘shift’’ key.  The
       assignment of the functions described below to keys and buttons may  be
       changed through the resource database; see ACTIONS below.

       Pointer  button  one  (usually  left) is used to save text into the cut
       buffer.  Move the cursor to beginning of the text, and  then  hold  the
       button  down  while  moving  the  cursor  to  the end of the region and
       releasing the button.  The selected text is highlighted and is saved in
       the global cut buffer and made the PRIMARY selection when the button is
       released.  Normally (but see the discussion of on2Clicks, etc):

              -  Double-clicking selects by words.

              -  Triple-clicking selects by lines.

              -  Quadruple-clicking goes back to characters, etc.

       Multiple-click is determined by the time from button up to button down,
       so  you  can  change  the  selection unit in the middle of a selection.
       Logical words and lines selected by double- or triple-clicking may wrap
       across  more than one screen line if lines were wrapped by xterm itself
       rather  than  by  the  application  running  in  the  window.   If  the
       key/button  bindings  specify  that an X selection is to be made, xterm
       will leave the selected text highlighted for  as  long  as  it  is  the
       selection owner.

       Pointer  button two (usually middle) ‘types’ (pastes) the text from the
       PRIMARY selection, if any, otherwise from the cut buffer, inserting  it
       as keyboard input.

       Pointer  button  three  (usually  right) extends the current selection.
       (Without loss of  generality,  you  can  swap  ‘‘right’’  and  ‘‘left’’
       everywhere  in the rest of this paragraph.)  If pressed while closer to
       the right edge of the selection than the left, it extends/contracts the
       right  edge  of  the selection.  If you contract the selection past the
       left edge of the selection, xterm assumes you  really  meant  the  left
       edge,  restores the original selection, then extends/contracts the left
       edge of the selection.  Extension starts in  the  selection  unit  mode
       that  the  last  selection  or  extension  was  performed  in;  you can
       multiple-click to cycle through them.

       By cutting and pasting pieces of text without trailing new  lines,  you
       can  take  text  from  several  places  in different windows and form a
       command to the shell, for example, or take output from  a  program  and
       insert  it  into  your favorite editor.  Since cut buffers are globally
       shared among different applications, you may regard each  as  a  ‘file’
       whose contents you know.  The terminal emulator and other text programs
       should be treating it as if it were a text  file,  i.e.,  the  text  is
       delimited by new lines.

   SCROLLING
       The  scroll  region  displays the position and amount of text currently
       showing in the window (highlighted) relative  to  the  amount  of  text
       actually saved.  As more text is saved (up to the maximum), the size of
       the highlighted area decreases.

       Clicking button one with the pointer in the  scroll  region  moves  the
       adjacent line to the top of the display window.

       Clicking  button three moves the top line of the display window down to
       the pointer position.

       Clicking button two moves the display to a position in the  saved  text
       that corresponds to the pointer’s position in the scrollbar.

   TEKTRONIX POINTER
       Unlike  the  VT102  window,  the  Tektronix  window  does not allow the
       copying of text.  It does allow Tektronix GIN mode, and  in  this  mode
       the cursor will change from an arrow to a cross.  Pressing any key will
       send that key and the current coordinate of the cross cursor.  Pressing
       button  one,  two,  or three will return the letters ‘l’, ‘m’, and ‘r’,
       respectively.  If the ‘shift’ key is pressed when a pointer  button  is
       pressed, the corresponding upper case letter is sent.  To distinguish a
       pointer button from a key, the high bit of the character  is  set  (but
       this  is  bit is normally stripped unless the terminal mode is RAW; see
       tty(4) for details).

MENUS

       Xterm has four menus, named mainMenu, vtMenu,  fontMenu,  and  tekMenu.
       Each  menu  pops  up  under  the correct combinations of key and button
       presses.  Each menu is divided into sections, separated by a horizontal
       line.   Some  menu  entries correspond to modes that can be altered.  A
       check mark appears next to a mode that is currently active.   Selecting
       one of these modes toggles its state.  Other menu entries are commands;
       selecting one of these performs the indicated function.

       All of the menu entries correspond to X actions.  In  the  list  below,
       the menu label is shown followed by the action’s name in parenthesis.

   Main Options
       The  xterm mainMenu pops up when the ‘‘control’’ key and pointer button
       one are pressed in a window.  This menu contains items  that  apply  to
       both the VT102 and Tektronix windows.  There are several sections:

       Commands for managing X events:

              Toolbar
                     Clicking on the "Toolbar" menu entry hides the toolbar if
                     it is visible, and shows it if it is not.

              Secure Keyboard (securekbd)
                     The Secure  Keyboard  mode  is  helpful  when  typing  in
                     passwords   or   other  sensitive  data  in  an  unsecure
                     environment; see SECURITY below (but read the limitations
                     carefully).

              Allow SendEvents (allowsends )
                     Specifies  whether or not synthetic key and button events
                     generated using the X protocol SendEvent  request  should
                     be  interpreted  or  discarded.   This corresponds to the
                     allowSendEvents resource.

              Redraw Window (redraw)
                     Forces  the  X  display  to  repaint;  useful   in   some
                     environments.

       Commands for capturing output:

              Log to File (logging)
                     Captures  text sent to the screen in a logfile, as in the
                     -l logging option.

              Print Window (print)
                     Sends the text of the current window to the program given
                     in the printerCommand resource.

              Redirect to Printer (print-redir)
                     This  sets the printerControlMode to 0 or 2.  You can use
                     this to turn the printer on as if an application had sent
                     the  appropriate control sequence.  It is also useful for
                     switching the printer off if an application turns  it  on
                     without resetting the print control mode.

       Modes for setting keyboard style:

              8-Bit Controls (8-bit-control)
                     Enabled  for VT220 emulation, this controls whether xterm
                     will send 8-bit control sequences rather than using 7-bit
                     (ASCII)  controls,  e.g.,  sending  a  byte  in the range
                     128-159 rather than the escape character  followed  by  a
                     second  byte.   Xterm  always  interprets  both 8-bit and
                     7-bit control sequences (see the document  Xterm  Control
                     Sequences).   This  corresponds  to  the  eightBitControl
                     resource.

              Backarrow Key (BS/DEL) (backarrow key)
                     Modifies the behavior of the  backarrow  key,  making  it
                     transmit   either   a   backspace  (8)  or  delete  (127)
                     character.   This   corresponds   to   the   backarrowKey
                     resource.

              Alt/NumLock Modifiers (num-lock)
                     Controls the treatment of Alt- and NumLock-key modifiers.
                     This corresponds to the numLock resource.

              Meta Sends Escape (meta-esc)
                     Controls whether Meta keys  are  converted  into  a  two-
                     character  sequence with the character itself preceded by
                     ESC.  This corresponds to the metaSendsEscape resource.

              Delete is DEL (delete-is-del)
                     Controls whether the Delete key  on  the  editing  keypad
                     should  send  DEL  (127) or the VT220-style Remove escape
                     sequence.  This corresponds to the deleteIsDEL  resource.

              Old Function-Keys (oldFunctionKeys)

              HP Function-Keys (hpFunctionKeys)

              SCO Function-Keys (scoFunctionKeys)

              Sun Function-Keys (sunFunctionKeys)

              VT220 Keyboard (sunKeyboard)
                     These  act as a radio-button, selecting one style for the
                     keyboard  layout.   It  corresponds  to  more  than   one
                     resource     setting:    sunKeyboard,    sunFunctionKeys,
                     scoFunctionKeys and hpFunctionKeys ."

       Commands for process signalling:

              Send STOP Signal (suspend)

              Send CONT Signal (continue)

              Send INT Signal (interrupt)

              Send HUP Signal (hangup)

              Send TERM Signal (terminate)

              Send KILL Signal (kill)
                     These send the SIGTSTP, SIGCONT, SIGINT, SIGHUP,  SIGTERM
                     and SIGKILL signals respectively, to the process group of
                     the process running under xterm (usually the shell).  The
                     SIGCONT  function  is  especially  useful if the user has
                     accidentally typed CTRL-Z, suspending the process.

              Quit (quit)
                     Stop processing X events  except  to  support  the  -hold
                     option,  and then send a SIGHUP signal to the the process
                     group of the process running  under  xterm  (usually  the
                     shell).

   VT Options
       The  vtMenu sets various modes in the VT102 emulation, and is popped up
       when the ‘‘control’’ key and pointer button  two  are  pressed  in  the
       VT102 window.

       VT102/VT220 Modes:

              Enable Scrollbar (scrollbar)
                     Enable  (or  disable) the scrollbar.  This corresponds to
                     the -sb option and the scrollBar resource.

              Enable Jump Scroll (jumpscroll)
                     Enable (or disable) jump scrolling.  This corresponds  to
                     the -j option and the jumpScroll resource.

              Enable Reverse Video (reversevideo)
                     Enable  (or  disable) reverse-video.  This corresponds to
                     the -rv option and the reverseVideo resource.

              Enable Auto Wraparound (autowrap)
                     Enable (or disable) auto-wraparound.  This corresponds to
                     the -aw option and the autoWrap resource.

              Enable Reverse Wraparound (reversewrap)
                     Enable (or disable) reverse wraparound.  This corresponds
                     to the -rw option and the reverseWrap resource.

              Enable Auto Linefeed (autolinefeed)
                     Enable (or disable) auto-linefeed.  This is the VT102 NEL
                     function,  which  causes  the emulator to emit a linefeed
                     after each carriage return.  There  is  no  corresponding
                     command-line option or resource setting.

              Enable Application Cursor Keys (appcursor)
                     Enable   (or  disable)  application  cursor  keys.   This
                     corresponds to the appcursorDefault resource.   There  is
                     no corresponding command-line option.

              Enable Application Keypad (appkeypad)
                     Enable   (or  disable)  application  keypad  keys.   This
                     corresponds to the appkeypadDefault resource.   There  is
                     no corresponding command-line option.

              Scroll to Bottom on Key Press (scrollkey)
                     Enable  (or  disable)  scrolling  to  the  bottom  of the
                     scrolling region on a keypress.  This corresponds to  the
                     -sk option and the scrollKey resource.

              Scroll to Bottom on Tty Output (scrollttyoutput)
                     Enable  (or  disable)  scrolling  to  the  bottom  of the
                     scrolling  region  on  output  to  the  terminal.    This
                     corresponds  to  the  -si  option and the scrollTtyOutput
                     resource.

              Allow 80/132 Column Switching (allow132)
                     Enable (or disable) switching between 80 and 132 columns.
                     This   corresponds  to  the  -132  option  and  the  c132
                     resource.

              Keep Selection (keepSelection)
                     Tell xterm whether to disown the selection when it  stops
                     highlighting  it,  e.g., when an application modifies the
                     display so that it no longer matches the text  which  has
                     been  highlighted.  As long as xterm continues to own the
                     selection, it can provide the corresponding text to other
                     clients   via   cut/paste.    This   corresponds  to  the
                     keepSelection  resource.   There  is   no   corresponding
                     command-line option.

              Select to Clipboard (selectToClipboard)
                     Tell  xterm  whether  to use the PRIMARY or CLIPBOARD for
                     SELECT tokens in the  translations  resource  which  maps
                     keyboard and mouse actions to select/paste actions.  This
                     corresponds to the selectToClipboard resource.  There  is
                     no corresponding command-line option.

              Enable Visual Bell (visualbell)
                     Enable (or disable) visible bell (i.e., flashing) instead
                     of an audible bell.  This corresponds to the  -vb  option
                     and the visualBell resource.

              Enable Bell Urgency (bellIsUrgent)
                     Enable  (or  disable)  Urgency  window  manager hint when
                     Control-G  is  received.    This   corresponds   to   the
                     bellIsUrgent resource.

              Enable Pop on Bell (poponbell)
                     Enable  (or disable) raising of the window when Control-G
                     is received.  This corresponds to the -pop option and the
                     popOnBell resource.

              Enable Blinking Cursor (cursorblink)
                     Enable  (or  disable)  the blinking-cursor feature.  This
                     corresponds  to  the  -bc  option  and  the   cursorBlink
                     resource.   There  is  also  an  escape sequence (see the
                     document Xterm Control Sequences).  The  menu  entry  and
                     the  escape  sequence  states  are  XOR’d:  if  both  are
                     enabled, the cursor  will  not  blink,  if  only  one  is
                     enabled, the cursor will blink.

              Enable Alternate Screen Switching (titeInhibit)
                     Enable  (or  disable)  switching  between  the normal and
                     alternate screens.  This corresponds to  the  titeInhibit
                     resource.  There is no corresponding command-line option.

              Enable Active Icon (activeicon)
                     Enable  (or  disable)  the  active-icon  feature.    This
                     corresponds   to   the  -ai  option  and  the  activeIcon
                     resource.

       VT102/VT220 Commands:

              Do Soft Reset (softreset)
                     Reset scroll regions.  This can be convenient  when  some
                     program  has  left  the  scroll  regions  set incorrectly
                     (often a  problem  when  using  VMS  or  TOPS-20).   This
                     corresponds to the VT220 DECSTR control sequence.

              Do Full Reset (hardreset)
                     The full reset entry will clear the screen, reset tabs to
                     every eight columns, and reset the terminal  modes  (such
                     as  wrap  and smooth scroll) to their initial states just
                     after xterm has  finished  processing  the  command  line
                     options.   This  corresponds  to  the  VT102  RIS control
                     sequence, with a few obvious differences.   For  example,
                     your  session  is  not disconnected as a real VT102 would
                     do.

              Reset and Clear Saved Lines (clearsavedlines)
                     Perform a full reset, and also clear the saved lines.

       Commands for setting the current screen:

              Show Tek Window (tekshow)
                     When enabled, pops the Tektronix 4014 window up (makes it
                     visible).    When  disabled,  hides  the  Tektronix  4014
                     window.

              Switch to Tek Mode (tekmode)
                     When enabled, pops the Tektronix 4014 window up if it  is
                     not  already  visible,  and  switches the input stream to
                     that window.  When disabled,  hides  the  Tektronix  4014
                     window and switches input back to the VTxxx window.

              Hide VT Window (vthide)
                     When enabled, hides the VTxxx window, shows the Tektronix
                     4014 window if it was not already  visible  and  switches
                     the  input  stream  to that window.  When disabled, shows
                     the VTxxx window, and switches the input stream  to  that
                     window.

              Show Alternate Screen (altscreen)
                     When enabled, shows the alternate screen.  When disabled,
                     shows the normal screen.  Note that the normal screen may
                     have saved lines; the alternate screen does not.

   VT Fonts
       The  fontMenu  pops up when when the ‘‘control’’ key and pointer button
       three are pressed in a window.  It sets the  font  used  in  the  VT102
       window,  or modifies the way the font is specified or displayed.  There
       are three sections.

       The first section  allows  you  to  select  the  font  from  a  set  of
       alternatives:

              Default (fontdefault)
                     Set  the  font  to  the  default, i.e., that given by the
                     *VT100.font resource.

              Unreadable (font1)
                     Set the font to that given by the *VT100.font1  resource.

              Tiny (font2)
                     Set  the font to that given by the *VT100.font2 resource.

              Small (font3)
                     Set the font to that given by the *VT100.font3  resource.

              Medium (font4)
                     Set  the font to that given by the *VT100.font4 resource.

              Large (font5)
                     Set the font to that given by the *VT100.font5  resource.

              Huge (font6)
                     Set  the font to that given by the *VT100.font6 resource.

              Escape Sequence
                     This allows you to set the font last specified by the Set
                     Font  escape  sequence  (see  the  document Xterm Control
                     Sequences).

              Selection (fontsel)
                     This allows you to set the  font  specified  the  current
                     selection  as  a  font  name (if the PRIMARY selection is
                     owned).

       The second section allows you to modify the way it is displayed:

              Line-Drawing Characters (font-linedrawing)
                     When set,  tells  xterm  to  draw  its  own  line-drawing
                     characters.   Otherwise  it relies on the font containing
                     these.  Compare to the forceBoxChars resource.

              Doublesized Characters (font-doublesize)
                     When set, xterm may ask the font server to produce scaled
                     versions  of  the  normal  font,  for  VT102  double-size
                     characters.

       The third section allows you to modify the way it is specified:

              TrueType Fonts (render-font)
                     If the renderFont and corresponding resources  were  set,
                     this is a further control whether xterm will actually use
                     the Xft library calls to obtain a font.

              UTF-8 (utf8-mode)
                     This  controls  whether  xterm  uses  UTF-8  encoding  of
                     input/output.   It  is  useful  for temporarily switching
                     xterm to display text from an application which does  not
                     follow the locale settings.

   TEK Options
       The  tekMenu  sets  various  modes  in  the Tektronix emulation, and is
       popped up when the ‘‘control’’ key and pointer button two  are  pressed
       in the Tektronix window.  The current font size is checked in the modes
       section of the menu.

              Large Characters (tektextlarge)

              #2 Size Characters (tektext2)

              #3 Size Characters (tektext3)

              Small Characters (tektextsmall)

       Commands:

              PAGE (tekpage)
                     Clear the Tektronix window.

              RESET (tekreset)

              COPY (tekcopy)

       Windows:

              Show VT Window (vtshow)

              Switch to VT Mode (vtmode)

              Hide Tek Window (tekhide)

SECURITY

       X environments differ in their security consciousness.   Most  servers,
       run  under  xdm,  are capable of using a ‘‘magic cookie’’ authorization
       scheme that can provide a reasonable level of security for many people.
       If  your  server is only using a host-based mechanism to control access
       to the server (see xhost(1)), then if you enable access for a host  and
       other  users are also permitted to run clients on that same host, it is
       possible that someone can run  an  application  which  uses  the  basic
       services  of  the  X  protocol to snoop on your activities, potentially
       capturing a transcript of everything you type  at  the  keyboard.   Any
       process  which  has  access to your X display can manipulate it in ways
       that you might not anticipate, even redirecting your keyboard to itself
       and  sending  events  to your application’s windows.  This is true even
       with  the   ‘‘magic   cookie’’   authorization   scheme.    While   the
       allowSendEvents  provides  some  protection  against rogue applications
       tampering with your programs, guarding against a snooper is harder.

       The possibility of an application  spying  on  your  keystrokes  is  of
       particular  concern  when  you  want  to  type  in  a password or other
       sensitive data.  The best solution to this problem is to use  a  better
       authorization  mechanism  than  is  provided  by X.  Given all of these
       caveats, a simple mechanism exists for  protecting  keyboard  input  in
       xterm.

       The  xterm  menu  (see  MENUS  above)  contains a Secure Keyboard entry
       which, when enabled, attempts to ensure  that  all  keyboard  input  is
       directed only to xterm (using the GrabKeyboard protocol request).  When
       an application prompts you for a password (or  other  sensitive  data),
       you  can  enable  Secure Keyboard using the menu, type in the data, and
       then disable Secure Keyboard using the menu again.  This  ensures  that
       you  know  which window is accepting your keystrokes.  It cannot ensure
       that there are no processes which have access to your  X  display  that
       might be observing the keystrokes as well.

       Only  one X client at a time can grab the keyboard, so when you attempt
       to enable Secure Keyboard it may fail.  In this  case,  the  bell  will
       sound.   If the Secure Keyboard succeeds, the foreground and background
       colors will be exchanged (as if you selected the Reverse Video entry in
       the  Modes  menu);  they  will  be exchanged again when you exit secure
       mode.  If the colors do not switch, then you should be very  suspicious
       that  you  are  being  spoofed.   If  the  application  you are running
       displays a prompt before asking for the password, it is safest to enter
       secure mode before the prompt gets displayed, and to make sure that the
       prompt gets displayed correctly (in the new colors),  to  minimize  the
       probability of spoofing.  You can also bring up the menu again and make
       sure that a check mark appears next to the entry.

       Secure Keyboard mode will  be  disabled  automatically  if  your  xterm
       window  becomes iconified (or otherwise unmapped), or if you start up a
       reparenting window manager (that places a title bar or other decoration
       around  the  window) while in Secure Keyboard mode.  (This is a feature
       of the X  protocol  not  easily  overcome.)   When  this  happens,  the
       foreground  and  background  colors  will be switched back and the bell
       will sound in warning.

CHARACTER CLASSES

       Clicking the left pointer button twice  in  rapid  succession  (double-
       clicking) causes all characters of the same class (e.g., letters, white
       space, punctuation) to be selected  as  a  ‘‘word’’.   Since  different
       people  have  different  preferences  for  what should be selected (for
       example, should filenames be selected as a whole or only  the  separate
       subnames), the default mapping can be overridden through the use of the
       charClass (class CharClass) resource.

       This resource is a series of comma-separated of range:value pairs.  The
       range is either a single number or low-high in the range of 0 to 65535,
       corresponding to the code for the character or characters  to  be  set.
       The  value  is arbitrary, although the default table uses the character
       number of the first character occurring in the set.  When not in  UTF-8
       mode, only the first 256 bytes of this table will be used.

       The default table starts as follows -

           static int charClass[256] = {
           /∗ NUL  SOH  STX  ETX  EOT  ENQ  ACK  BEL */
               32,   1,   1,   1,   1,   1,   1,   1,
           /∗  BS   HT   NL   VT   NP   CR   SO   SI */
                1,  32,   1,   1,   1,   1,   1,   1,
           /∗ DLE  DC1  DC2  DC3  DC4  NAK  SYN  ETB */
                1,   1,   1,   1,   1,   1,   1,   1,
           /∗ CAN   EM  SUB  ESC   FS   GS   RS   US */
                1,   1,   1,   1,   1,   1,   1,   1,
           /∗  SP    !    "    #    $    %    &    ’ */
               32,  33,  34,  35,  36,  37,  38,  39,
           /∗   (    )    *    +    ,    -    .    / */
               40,  41,  42,  43,  44,  45,  46,  47,
           /∗   0    1    2    3    4    5    6    7 */
               48,  48,  48,  48,  48,  48,  48,  48,
           /∗   8    9    :    ;    <    =    >    ? */
               48,  48,  58,  59,  60,  61,  62,  63,
           /∗   @    A    B    C    D    E    F    G */
               64,  48,  48,  48,  48,  48,  48,  48,
           /∗   H    I    J    K    L    M    N    O */
               48,  48,  48,  48,  48,  48,  48,  48,
           /∗   P    Q    R    S    T    U    V    W */
               48,  48,  48,  48,  48,  48,  48,  48,
           /∗   X    Y    Z    [    \    ]    ^    _ */
               48,  48,  48,  91,  92,  93,  94,  48,
           /∗   ‘    a    b    c    d    e    f    g */
               96,  48,  48,  48,  48,  48,  48,  48,
           /∗   h    i    j    k    l    m    n    o */
               48,  48,  48,  48,  48,  48,  48,  48,
           /∗   p    q    r    s    t    u    v    w */
               48,  48,  48,  48,  48,  48,  48,  48,
           /∗   x    y    z    {    |    }    ~  DEL */
               48,  48,  48, 123, 124, 125, 126,   1,
           /∗ x80  x81  x82  x83  IND  NEL  SSA  ESA */
                1,   1,   1,   1,   1,   1,   1,   1,
           /∗ HTS  HTJ  VTS  PLD  PLU   RI  SS2  SS3 */
                1,   1,   1,   1,   1,   1,   1,   1,
           /∗ DCS  PU1  PU2  STS  CCH   MW  SPA  EPA */
                1,   1,   1,   1,   1,   1,   1,   1,
           /∗ x98  x99  x9A  CSI   ST  OSC   PM  APC */
                1,   1,   1,   1,   1,   1,   1,   1,
           /∗   -    i   c/    L   ox   Y-    |   So */
              160, 161, 162, 163, 164, 165, 166, 167,
           /∗  ..   c0   ip   <<    _        R0    - */
              168, 169, 170, 171, 172, 173, 174, 175,
           /∗   o   +-    2    3    ’    u   q|    . */
              176, 177, 178, 179, 180, 181, 182, 183,
           /∗   ,    1    2   >>  1/4  1/2  3/4    ? */
              184, 185, 186, 187, 188, 189, 190, 191,
           /∗  A‘   A’   A^   A~   A:   Ao   AE   C, */
               48,  48,  48,  48,  48,  48,  48,  48,
           /∗  E‘   E’   E^   E:   I‘   I’   I^   I: */
               48,  48,  48,  48,  48,  48,  48,  48,
           /∗  D-   N~   O‘   O’   O^   O~   O:    X */
               48,  48,  48,  48,  48,  48,  48, 215,
           /∗  O/   U‘   U’   U^   U:   Y’    P    B */
               48,  48,  48,  48,  48,  48,  48,  48,
           /∗  a‘   a’   a^   a~   a:   ao   ae   c, */
               48,  48,  48,  48,  48,  48,  48,  48,
           /∗  e‘   e’   e^   e:    i‘  i’   i^   i: */
               48,  48,  48,  48,  48,  48,  48,  48,
           /∗   d   n~   o‘   o’   o^   o~   o:   -: */
               48,  48,  48,  48,  48,  48,  48, 247,
           /∗  o/   u‘   u’   u^   u:   y’    P   y: */
               48,  48,  48,  48,  48,  48,  48,  48};

       For  example,  the string ‘‘33:48,37:48,45-47:48,38:48’’ indicates that
       the exclamation mark, percent sign, dash, period, slash, and  ampersand
       characters  should  be  treated the same way as characters and numbers.
       This is useful for cutting and pasting electronic mailing addresses and
       filenames.

ACTIONS

       It  is  possible  to  rebind  keys  (or sequences of keys) to arbitrary
       strings for input, by changing the translations resources for the vt100
       or  tek4014  widgets.   Changing  the  translations resource for events
       other than key and button  events  is  not  expected,  and  will  cause
       unpredictable  behavior.   The  following  actions are provided for use
       within the vt100 or tek4014 translations resources:

       allow-send-events(on/off/toggle)
               This action set or toggles the allowSendEvents resource and  is
               also invoked by the allowsends entry in mainMenu.

       alt-sends-escape()
               This action toggles the state of the eightBitInput resource.

       bell([percent])
               This action rings the keyboard bell at the specified percentage
               above or below the base volume.

       clear-saved-lines()
               This action does hard-reset() (see below) and also  clears  the
               history  of  lines saved off the top of the screen.  It is also
               invoked from the clearsavedlines entry in vtMenu.   The  effect
               is identical to a hardware reset (RIS) control sequence.

       create-menu(m/v/f/t)
               This  action  creates one of the menus used by xterm, if it has
               not been previously created.  The parameter values are the menu
               names: mainMenu, vtMenu, fontMenu, tekMenu, respectively.

       dabbrev-expand()
               Expands  the  word  before cursor by searching in the preceding
               text on the screen and  in  the  scrollback  buffer  for  words
               starting  with  that  abbreviation.  Repeating dabbrev-expand()
               several times in sequence searches for an alternative expansion
               by looking farther back.  Lack of more matches is signaled by a
               beep().  Attempts to expand an empty word (i.e., when cursor is
               preceded  by  a  space)  yield successively all previous words.
               Consecutive identical expansions are ignored.  The word here is
               defined  as  a  sequence  of  non-whitespace  characters.  This
               feature   partially   emulates   the   behavior   of   ‘dynamic
               abbreviation’ expansion in Emacs (bound there to M-/).  Here is
               a resource setting for xterm which will do the same thing:

                   *VT100*translations:    #override \n\
                           Meta <KeyPress> /:dabbrev-expand()

       deiconify()
               Changes the window state back to normal, if it was iconified.

       delete-is-del()
               This action toggles the state of the deleteIsDEL resource.

       dired-button()
               Handles a button  event  (other  than  press  and  release)  by
               echoing  the event’s position (i.e., character line and column)
               in the following format:

                       ^X ESC G <line+’ ’> <col+’ ’>

       iconify()
               Iconifies the window.

       hard-reset()
               This action resets the scrolling region, tabs, window size, and
               cursor keys and clears the screen.  It is also invoked from the
               hardreset entry in vtMenu.

       ignore()
               This action ignores the event but checks  for  special  pointer
               position escape sequences.

       insert()
               This action inserts the character or string associated with the
               key that was pressed.

       insert-eight-bit()
               This  action  inserts  an  eight-bit  (Meta)  version  of   the
               character  or  string associated with the key that was pressed.
               This only applies to  single-byte  values.   The  exact  action
               depends   on   the   value   of  the  metaSendsEscape  and  the
               eightBitInput  resources.   The  metaSendsEscape  resource   is
               tested first.

               The  term  "eight-bit" is misleading: xterm checks if the key’s
               value is less than 128.  If so, xterm adds 128  to  the  value,
               setting  its  eighth  bit.   Otherwise  xterm sends an ESC byte
               before the key.  In other applications’ documentation, that  is
               referred to as a "meta key".

       insert-selection(sourcename [, ...])
               This  action  inserts  the  string  found  in  the selection or
               cutbuffer indicated by sourcename.  Sources are checked in  the
               order   given   (case  is  significant)  until  one  is  found.
               Commonly-used  selections  include:  PRIMARY,  SECONDARY,   and
               CLIPBOARD.  Cut buffers are typically named CUT_BUFFER0 through
               CUT_BUFFER7.

       insert-seven-bit()
               This action is a synonym for insert() The term  "seven-bit"  is
               misleading:  it only implies that xterm does not try to add 128
               to the key’s value as in insert-eight-bit().

       interpret(control-sequence)
               Interpret the given control  sequence  locally,  i.e.,  without
               passing  it  to  the host.  This works by inserting the control
               sequence at the front of the input buffer.  Use "\"  to  escape
               octal  digits  in  the  string.  Xt does not allow you to put a
               null character (i.e., "\000") in the string.

       keymap(name)
               This action dynamically defines a new translation  table  whose
               resource   name  is  name  with  the  suffix  Keymap  (case  is
               significant).  The name None restores the original  translation
               table.

       larger-vt-font()
               Set  the  font  to  the  next  larger  one,  based  on the font
               dimensions.  See also set-vt-font().

       load-vt-fonts(name[,class])
               Load fontnames from the given subresource name and class.  That
               is, load the "*VT100.name.font", resource as "*VT100.font" etc.
               If no name is given, the original set of fontnames is restored.

               Unlike  set-vt-font(),  this  does  not  affect the escape- and
               select-fonts, since those are not based on resource values.  It
               does  affect  the fonts loosely organized under the ‘‘Default’’
               menu entry: font, boldFont, wideFont and wideBoldFont.

       maximize()
               Resizes the window to fill the screen.

       meta-sends-escape()
               This action toggles the state of the metaSendsEscape  resource.

       popup-menu(menuname)
               This  action  displays  the  specified popup menu.  Valid names
               (case is significant) include:  mainMenu, vtMenu, fontMenu, and
               tekMenu.

       print() This  action prints the window and is also invoked by the print
               entry in mainMenu.

       print-redir()
               This action toggles the printerControlMode  between  0  and  2.
               The  corresponding popup menu entry is useful for switching the
               printer off if you happen to change your mind after deciding to
               print random binary files on the terminal.

       quit()  This  action sends a SIGHUP to the subprogram and exits.  It is
               also invoked by the quit entry in mainMenu.

       redraw()
               This action redraws the window  and  is  also  invoked  by  the
               redraw entry in mainMenu.

       restore()
               Restores the window to the size before it was last maximized.

       scroll-back(count [,units [,mouse] ])
               This  action scrolls the text window backward so that text that
               had previously scrolled off  the  top  of  the  screen  is  now
               visible.

               The  count argument indicates the number of units (which may be
               page, halfpage, pixel, or line) by which to scroll.

               An adjustment can be specified for these values by appending  a
               "+" or "-" sign followed by a number, e.g., page-2 to specify 2
               lines less than a page.

               If the third parameter mouse is given, the  action  is  ignored
               when mouse reporting is enabled.

       scroll-forw(count [,units [,mouse] ])
               This action is similar to scroll-back except that it scrolls in
               the other direction.

       secure()
               This action toggles the Secure Keyboard mode described  in  the
               section named SECURITY, and is invoked from the securekbd entry
               in mainMenu.

       select-cursor-end(destname [, ...])
               This action is similar to select-end except that it  should  be
               used with select-cursor-start.

       select-cursor-extend()
               This  action  is similar to select-extend except that it should
               be used with select-cursor-start.

       select-cursor-start()
               This action is similar to select-start except  that  it  begins
               the selection at the current text cursor position.

       select-end(destname [, ...])
               This  action  puts  the currently selected text into all of the
               selections or cutbuffers specified by destname.

       select-extend()
               This action tracks the pointer and extends the  selection.   It
               should only be bound to Motion events.

       select-set()
               This  action  stores  text  that  corresponds  to  the  current
               selection, without affecting the selection mode.

       select-start()
               This action  begins  text  selection  at  the  current  pointer
               location.   See the section on POINTER USAGE for information on
               making selections.

       send-signal(signame)
               This action sends the signal named  by  signame  to  the  xterm
               subprocess  (the shell or program specified with the -e command
               line option) and is also  invoked  by  the  suspend,  continue,
               interrupt,  hangup,  terminate,  and  kill entries in mainMenu.
               Allowable signal names are (case is not significant): tstp  (if
               supported  by  the  operating  system), suspend (same as tstp),
               cont (if supported by the operating system),  int,  hup,  term,
               quit, alrm, alarm (same as alrm) and kill.

       set-allow132(on/off/toggle)
               This  action toggles the c132 resource and is also invoked from
               the allow132 entry in vtMenu.

       set-altscreen(on/off/toggle)
               This action toggles between the alternate and current  screens.

       set-appcursor(on/off/toggle)
               This  action  toggles  the handling Application Cursor Key mode
               and is also invoked by the appcursor entry in vtMenu.

       set-appkeypad(on/off/toggle)
               This action toggles the handling of Application Keypad mode and
               is also invoked by the appkeypad entry in vtMenu.

       set-autolinefeed(on/off/toggle)
               This  action  toggles  automatic  insertion of linefeeds and is
               also invoked by the autolinefeed entry in vtMenu.

       set-autowrap(on/off/toggle)
               This action toggles automatic wrapping of  long  lines  and  is
               also invoked by the autowrap entry in vtMenu.

       set-backarrow(on/off/toggle)
               This  action  toggles  the  backarrowKey  resource  and is also
               invoked from the backarrow key entry in vtMenu.

       set-bellIsUrgent(on/off/toggle)
               This action toggles  the  bellIsUrgent  resource  and  is  also
               invoked by the bellIsUrgent entry in vtMenu.

       set-cursorblink(on/off/toggle)
               This  action  toggles  the  cursorBlink  resource  and  is also
               invoked from the cursorblink entry in vtMenu.

       set-cursesemul(on/off/toggle)
               This action toggles the curses resource  and  is  also  invoked
               from the cursesemul entry in vtMenu.

       set-font-doublesize(on/off/toggle)
               This  action  toggles  the  fontDoublesize resource and is also
               invoked by the font-doublesize entry in fontMenu.

       set-hp-function-keys(on/off/toggle)
               This action toggles the hpFunctionKeys  resource  and  is  also
               invoked by the hpFunctionKeys entry in mainMenu.

       set-jumpscroll(on/off/toggle)
               This action toggles the jumpscroll resource and is also invoked
               by the jumpscroll entry in vtMenu.

       set-font-linedrawing(on/off/toggle)
               This action toggles the xterm’s  state  regarding  whether  the
               current  font has line-drawing characters and whether it should
               draw them directly.  It is also invoked by the font-linedrawing
               entry in fontMenu.

       set-keep-selection(on/off/toggle)
               This  action  toggles  the  keepSelection  resource and is also
               invoked by the keepSelection entry in vtMenu.

       set-logging()
               This action toggles the state of the logging option.

       set-old-function-keys(on/off/toggle)
               This action toggles the state of legacy function  keys  and  is
               also invoked by the oldFunctionKeys entry in mainMenu.

       set-marginbell(on/off/toggle)
               This action toggles the marginBell resource.

       set-num-lock()
               This action toggles the state of the numLock resource.

       set-pop-on-bell(on/off/toggle)
               This  action toggles the popOnBell resource and is also invoked
               by the poponbell entry in vtMenu.

       set-render-font(on/off/toggle)
               This action toggles the renderFont resource and is also invoked
               by the render-font entry in fontMenu.

       set-reverse-video(on/off/toggle)
               This  action  toggles  the  reverseVideo  resource  and is also
               invoked by the reversevideo entry in vtMenu.

       set-reversewrap(on/off/toggle)
               This action  toggles  the  reverseWrap  resource  and  is  also
               invoked by the reversewrap entry in vtMenu.

       set-scroll-on-key(on/off/toggle)
               This  action toggles the scrollKey resource and is also invoked
               from the scrollkey entry in vtMenu.

       set-scroll-on-tty-output(on/off/toggle)
               This action toggles the scrollTtyOutput resource  and  is  also
               invoked from the scrollttyoutput entry in vtMenu.

       set-scrollbar(on/off/toggle)
               This  action toggles the scrollbar resource and is also invoked
               by the scrollbar entry in vtMenu.

       set-select(on/off/toggle)
               This action toggles the selectToClipboard resource and is  also
               invoked by the selectToClipboard entry in vtMenu.

       set-sco-function-keys(on/off/toggle)
               This  action  toggles  the scoFunctionKeys resource and is also
               invoked by the scoFunctionKeys entry in mainMenu.

       set-sun-function-keys(on/off/toggle)
               This action toggles the sunFunctionKeys resource  and  is  also
               invoked by the sunFunctionKeys entry in mainMenu.

       set-sun-keyboard(on/off/toggle)
               This  action  toggles  the  sunKeyboard  resource  and  is also
               invoked by the sunKeyboard entry in mainMenu.

       set-tek-text(large/2/3/small)
               This action sets font used in the Tektronix window to the value
               of   the   resources   tektextlarge,  tektext2,  tektext3,  and
               tektextsmall according to the argument.  It is also invoked  by
               the entries of the same names as the resources in tekMenu.

       set-terminal-type(type)
               This  action  directs  output  to either the vt or tek windows,
               according to the type  string.   It  is  also  invoked  by  the
               tekmode entry in vtMenu and the vtmode entry in tekMenu.

       set-titeInhibit(on/off/toggle)
               This  action  toggles  the titeInhibit resource, which controls
               switching between the alternate and current screens.

       set-toolbar(on/off/toggle)
               This action toggles the toolbar feature and is also invoked  by
               the toolbar entry in mainMenu.

       set-utf8-mode(on/off/toggle)
               This  action  toggles  the utf8 resource and is also invoked by
               the utf8-mode entry in fontMenu.

       set-utf8-title(on/off/toggle)
               This action toggles the utf8Title resource and is also  invoked
               by the utf8-title entry in fontMenu.

       set-visibility(vt/tek,on/off/toggle)
               This  action  controls whether or not the vt or tek windows are
               visible.  It is  also  invoked  from  the  tekshow  and  vthide
               entries  in  vtMenu  and  the  vtshow  and  tekhide  entries in
               tekMenu.

       set-visual-bell(on/off/toggle)
               This action toggles the visualBell resource and is also invoked
               by the visualbell entry in vtMenu.

       set-vt-font(d/1/2/3/4/5/6/e/s [,normalfont [, boldfont]])
               This  action sets the font or fonts currently being used in the
               VT102 window.  The first argument is a  single  character  that
               specifies the font to be used:

               d  or D indicate the default font (the font initially used when
                      xterm was started),

               1 through 6 indicate the fonts specified by the  font1  through
                      font6 resources,

               e  or  E  indicate the normal and bold fonts that have been set
                      through escape codes (or specified  as  the  second  and
                      third action arguments, respectively), and

               s or S indicate the font selection (as made by programs such as
                      xfontsel(1)) indicated by the second action argument.

               If  xterm  is  configured  to  support  wide   characters,   an
               additional  two  optional  parameters  are recognized for the e
               argument: wide font and wide bold font.

       smaller-vt-font()
               Set the font to  the  next  smaller  one,  based  on  the  font
               dimensions.  See also set-vt-font().

       soft-reset()
               This  action  resets  the  scrolling region and is also invoked
               from the softreset entry in vtMenu.  The effect is identical to
               a soft reset (DECSTR) control sequence.

       spawn-new-terminal(params)
               Spawn  a new xterm process.  This is available on systems which
               have a modern version of the process filesystem, e.g., "/proc",
               which xterm can read.

               Use  the  "cwd"  process entry, e.g., /proc/12345/cwd to obtain
               the working directory of the process which is  running  in  the
               current xterm.

               On   systems   which   have  the  "exe"  process  entry,  e.g.,
               /proc/12345/exe, use this  to  obtain  the  actual  executable.
               Otherwise, use the $PATH variable to find xterm.

               If  parameters  are  given  in the action, pass them to the new
               xterm process.

       start-extend()
               This  action  is  similar  to  select-start  except  that   the
               selection is extended to the current pointer location.

       start-cursor-extend()
               This  action  is  similar  to  select-extend  except  that  the
               selection is extended to the current text cursor position.

       string(string)
               This action inserts the specified text string as if it had been
               typed.    Quotation   is   necessary  if  the  string  contains
               whitespace  or  non-alphanumeric  characters.   If  the  string
               argument  begins  with the characters ‘‘0x’’, it is interpreted
               as a hex character constant.

       tek-copy()
               This action copies  the  escape  codes  used  to  generate  the
               current  window  contents  to  a  file in the current directory
               beginning with the name COPY.  It  is  also  invoked  from  the
               tekcopy entry in tekMenu.

       tek-page()
               This  action clears the Tektronix window and is also invoked by
               the tekpage entry in tekMenu.

       tek-reset()
               This action resets the Tektronix window and is also invoked  by
               the tekreset entry in tekMenu.

       vi-button()
               Handles  a  button  event  (other  than  press  and release) by
               echoing a control  sequence  computed  from  the  event’s  line
               number in the screen relative to the current line:

                       ESC ^P
               or
                       ESC ^N

               according  to whether the event is before, or after the current
               line, respectively.  The ^N (or ^P) is repeated once  for  each
               line that the event differs from the current line.  The control
               sequence is omitted altogether if the button event  is  on  the
               current line.

       visual-bell()
               This action flashes the window quickly.

       The Tektronix window also has the following action:

       gin-press(l/L/m/M/r/R)
               This action sends the indicated graphics input code.

       The default bindings in the VT102 window use the SELECT token, which is
       set by the selectToClipboard resource:

                     Shift <KeyPress> Prior:scroll-back(1,halfpage) \n\
                      Shift <KeyPress> Next:scroll-forw(1,halfpage) \n\
                    Shift <KeyPress> Select:select-cursor-start() \
                                            select-cursor-end(SELECT, CUT_BUFFER0) \n\
                    Shift <KeyPress> Insert:insert-selection(SELECT, CUT_BUFFER0) \n\
                       <KeyPress> XF86Paste:insert-selection(SELECT, CUT_BUFFER0) \n\
                        <KeyPress> SunPaste:insert-selection(SELECT, CUT_BUFFER0) \n\
               Shift~Ctrl <KeyPress> KP_Add:larger-vt-font() \n\
               Shift Ctrl <KeyPress> KP_Add:smaller-vt-font() \n\
               Shift <KeyPress> KP_Subtract:smaller-vt-font() \n\
                           ~Meta <KeyPress>:insert-seven-bit() \n\
                            Meta <KeyPress>:insert-eight-bit() \n\
                           !Ctrl <Btn1Down>:popup-menu(mainMenu) \n\
                      !Lock Ctrl <Btn1Down>:popup-menu(mainMenu) \n\
            !Lock Ctrl @Num_Lock <Btn1Down>:popup-menu(mainMenu) \n\
                ! @Num_Lock Ctrl <Btn1Down>:popup-menu(mainMenu) \n\
                           ~Meta <Btn1Down>:select-start() \n\
                         ~Meta <Btn1Motion>:select-extend() \n\
                           !Ctrl <Btn2Down>:popup-menu(vtMenu) \n\
                      !Lock Ctrl <Btn2Down>:popup-menu(vtMenu) \n\
            !Lock Ctrl @Num_Lock <Btn2Down>:popup-menu(vtMenu) \n\
                ! @Num_Lock Ctrl <Btn2Down>:popup-menu(vtMenu) \n\
                     ~Ctrl ~Meta <Btn2Down>:ignore() \n\
                            Meta <Btn2Down>:clear-saved-lines() \n\
                       ~Ctrl ~Meta <Btn2Up>:insert-selection(SELECT, CUT_BUFFER0) \n\
                           !Ctrl <Btn3Down>:popup-menu(fontMenu) \n\
                      !Lock Ctrl <Btn3Down>:popup-menu(fontMenu) \n\
            !Lock Ctrl @Num_Lock <Btn3Down>:popup-menu(fontMenu) \n\
                ! @Num_Lock Ctrl <Btn3Down>:popup-menu(fontMenu) \n\
                     ~Ctrl ~Meta <Btn3Down>:start-extend() \n\
                         ~Meta <Btn3Motion>:select-extend() \n\
                            Ctrl <Btn4Down>:scroll-back(1,halfpage,m) \n\
                       Lock Ctrl <Btn4Down>:scroll-back(1,halfpage,m) \n\
             Lock @Num_Lock Ctrl <Btn4Down>:scroll-back(1,halfpage,m) \n\
                  @Num_Lock Ctrl <Btn4Down>:scroll-back(1,halfpage,m) \n\
                                 <Btn4Down>:scroll-back(5,line,m)     \n\
                            Ctrl <Btn5Down>:scroll-forw(1,halfpage,m) \n\
                       Lock Ctrl <Btn5Down>:scroll-forw(1,halfpage,m) \n\
             Lock @Num_Lock Ctrl <Btn5Down>:scroll-forw(1,halfpage,m) \n\
                  @Num_Lock Ctrl <Btn5Down>:scroll-forw(1,halfpage,m) \n\
                                 <Btn5Down>:scroll-forw(5,line,m)     \n\
                                    <BtnUp>:select-end(SELECT, CUT_BUFFER0) \n\
                                  <BtnDown>:ignore()

       The default bindings for the scrollbar widget  are  separate  from  the
       VT100 widget:

                                 <Btn5Down>: StartScroll(Forward) \n\
                                 <Btn1Down>: StartScroll(Forward) \n\
                                 <Btn2Down>: StartScroll(Continuous) MoveThumb() NotifyThumb() \n\
                                 <Btn3Down>: StartScroll(Backward) \n\
                                 <Btn4Down>: StartScroll(Backward) \n\
                                 <Btn2Motion>: MoveThumb() NotifyThumb() \n\
                                 <BtnUp>:    NotifyScroll(Proportional) EndScroll()

       The default bindings in the Tektronix window are:

                            ~Meta<KeyPress>: insert-seven-bit() \n\
                             Meta<KeyPress>: insert-eight-bit() \n\
                           !Ctrl <Btn1Down>: popup-menu(mainMenu) \n\
                      !Lock Ctrl <Btn1Down>: popup-menu(mainMenu) \n\
            !Lock Ctrl @Num_Lock <Btn1Down>: popup-menu(mainMenu) \n\
                 !Ctrl @Num_Lock <Btn1Down>: popup-menu(mainMenu) \n\
                           !Ctrl <Btn2Down>: popup-menu(tekMenu) \n\
                      !Lock Ctrl <Btn2Down>: popup-menu(tekMenu) \n\
            !Lock Ctrl @Num_Lock <Btn2Down>: popup-menu(tekMenu) \n\
                 !Ctrl @Num_Lock <Btn2Down>: popup-menu(tekMenu) \n\
                      Shift ~Meta<Btn1Down>: gin-press(L) \n\
                            ~Meta<Btn1Down>: gin-press(l) \n\
                      Shift ~Meta<Btn2Down>: gin-press(M) \n\
                            ~Meta<Btn2Down>: gin-press(m) \n\
                      Shift ~Meta<Btn3Down>: gin-press(R) \n\
                            ~Meta<Btn3Down>: gin-press(r)

       Here  is  an  example  which  uses  shifted select/paste to copy to the
       clipboard, and unshifted select/paste for the  primary  selection.   In
       each  case,  a (different) cut buffer is also a target or source of the
       select/paste operation.  It is important to remember however, that  cut
       buffers  store  data in ISO-8859-1 encoding, while selections can store
       data in a variety of formats  and  encodings.   While  xterm  owns  the
       selection,  it  highlights it.  When it loses the selection, it removes
       the  corresponding  highlight.   But  you  can  still  paste  from  the
       corresponding cut buffer.

           *VT100*translations:    #override \n\
               ~Shift~Ctrl<Btn2Up>: insert-selection(PRIMARY, CUT_BUFFER0) \n\
               Shift~Ctrl<Btn2Up>:  insert-selection(CLIPBOARD, CUT_BUFFER1) \n\
               ~Shift<BtnUp>:       select-end(PRIMARY, CUT_BUFFER0) \n\
               Shift<BtnUp>:        select-end(CLIPBOARD, CUT_BUFFER1)

       Below  is  a  sample  how of the keymap() action is used to add special
       keys for entering commonly-typed works:

           *VT100.Translations: #override <Key>F13: keymap(dbx)
           *VT100.dbxKeymap.translations: \
                <Key>F14: keymap(None) \n\
                <Key>F17: string("next") string(0x0d) \n\
                <Key>F18: string("step") string(0x0d) \n\
                <Key>F19: string("continue") string(0x0d) \n\
                <Key>F20: string("print ") insert-selection(PRIMARY, CUT_BUFFER0)

       Some people prefer using the  left  pointer  button  for  dragging  the
       scrollbar  thumb.   That  can  be  setup  by  altering the translations
       resource, e.g.,

           *VT100.scrollbar.translations:#override \n\
                <Btn5Down>:StartScroll(Forward) \n\
                <Btn1Down>:StartScroll(Continuous) MoveThumb() NotifyThumb() \n\
                <Btn4Down>:StartScroll(Backward) \n\
                <Btn1Motion>:MoveThumb() NotifyThumb() \n\
                <BtnUp>:  NotifyScroll(Proportional) EndScroll()

CONTROL SEQUENCES AND KEYBOARD

       The Xterm Control Sequences document lists the control sequences  which
       an  application  can  send xterm to make it perform various operations.
       Most of these operations are  standardized,  from  either  the  DEC  or
       Tektronix  terminals,  or  from  more  widely  used  standards  such as
       ISO-6429.

ENVIRONMENT

       Xterm sets several environment variables:

       DISPLAY
            is the display name, pointing to the X server (see  DISPLAY  NAMES
            in X(7)).

       TERM is  set  according  to the termcap (or terminfo) entry which it is
            using as a reference.

       WINDOWID
            is set to the X window id number of the xterm window.

       XTERM_LOCALE
            shows the locale which was used by xterm on startup.   Some  shell
            initialization scripts may set a different locale.

       XTERM_SHELL
            is  set  to the pathname of the program which is invoked.  Usually
            that  is  a  shell  program,  e.g.,  /bin/sh.   Since  it  is  not
            necessarily   a   shell  program  however,  it  is  distinct  from
            ‘‘SHELL’’.

       XTERM_VERSION
            is set to the string displayed by the -version  option.   That  is
            normally  an  identifier  for the X Window libraries used to build
            xterm, followed by xterm’s patch number in parenthesis.  The patch
            number  is  also  part  of  the  response  to  a  Secondary Device
            Attributes (DA) control sequence (see Xterm Control Sequences).

       Depending  on  your  system  configuration,  xterm  may  also  set  the
       following:

       COLUMNS
            the width of the xterm in characters (cf: "stty columns").

       HOME when xterm is configured to update utmp.

       LINES
            the height of the xterm in characters (cf: "stty rows").

       LOGNAME
            when xterm is configured to update utmp.

       SHELL
            when  xterm  is  configured to update utmp.  It is also set if you
            provide the shell name as the optional parameter.

       TERMCAP
            the contents of the termcap entry  corresponding  to  $TERM,  with
            lines  and  columns  values substituted for the actual size window
            you have created.

       TERMINFO
            may be defined to a nonstandard location in the configure  script.

FILES

       The actual pathnames given may differ on your system.

       /var/run/utmp
            the system logfile, which records user logins.

       /var/log/wtmp
            the system logfile, which records user logins and logouts.

       /etc/X11/app-defaults/XTerm
            the xterm default application resources.

       /etc/X11/app-defaults/XTerm-color
            the  xterm  color application resources.  If your display supports
            color, use this
                      *customization: -color
            in your .Xdefaults file to automatically use  this  resource  file
            rather  than  /etc/X11/app-defaults/XTerm.  If you do not do this,
            xterm uses its compiled-in default resource settings for colors.

ERROR MESSAGES

       Most of the fatal error messages from xterm use the following format:
              xterm: Error XXX, errno YYY: ZZZ
       The XXX codes (which are used by xterm as  its  exit-code)  are  listed
       below, with a brief explanation.

       1    is  used  for  miscellaneous  errors,  usually  accompanied  by  a
            specific message,

       11   ERROR_FIONBIO
            main: ioctl() failed on FIONBIO

       12   ERROR_F_GETFL
            main: ioctl() failed on F_GETFL

       13   ERROR_F_SETFL
            main: ioctl() failed on F_SETFL

       14   ERROR_OPDEVTTY
            spawn: open() failed on /dev/tty

       15   ERROR_TIOCGETP
            spawn: ioctl() failed on TIOCGETP

       17   ERROR_PTSNAME
            spawn: ptsname() failed

       18   ERROR_OPPTSNAME
            spawn: open() failed on ptsname

       19   ERROR_PTEM
            spawn: ioctl() failed on I_PUSH/"ptem"

       20   ERROR_CONSEM
            spawn: ioctl() failed on I_PUSH/"consem"

       21   ERROR_LDTERM
            spawn: ioctl() failed on I_PUSH/"ldterm"

       22   ERROR_TTCOMPAT
            spawn: ioctl() failed on I_PUSH/"ttcompat"

       23   ERROR_TIOCSETP
            spawn: ioctl() failed on TIOCSETP

       24   ERROR_TIOCSETC
            spawn: ioctl() failed on TIOCSETC

       25   ERROR_TIOCSETD
            spawn: ioctl() failed on TIOCSETD

       26   ERROR_TIOCSLTC
            spawn: ioctl() failed on TIOCSLTC

       27   ERROR_TIOCLSET
            spawn: ioctl() failed on TIOCLSET

       28   ERROR_INIGROUPS
            spawn: initgroups() failed

       29   ERROR_FORK
            spawn: fork() failed

       30   ERROR_EXEC
            spawn: exec() failed

       32   ERROR_PTYS
            get_pty: not enough ptys

       34   ERROR_PTY_EXEC
            waiting for initial map

       35   ERROR_SETUID
            spawn: setuid() failed

       36   ERROR_INIT
            spawn: can’t initialize window

       46   ERROR_TIOCKSET
            spawn: ioctl() failed on TIOCKSET

       47   ERROR_TIOCKSETC
            spawn: ioctl() failed on TIOCKSETC

       48   ERROR_SPREALLOC
            spawn: realloc of ttydev failed

       49   ERROR_LUMALLOC
            luit: command-line malloc failed

       50   ERROR_SELECT
            in_put: select() failed

       54   ERROR_VINIT
            VTInit: can’t initialize window

       57   ERROR_KMMALLOC1
            HandleKeymapChange: malloc failed

       60   ERROR_TSELECT
            Tinput: select() failed

       64   ERROR_TINIT
            TekInit: can’t initialize window

       71   ERROR_BMALLOC2
            SaltTextAway: malloc() failed

       80   ERROR_LOGEXEC
            StartLog: exec() failed

       83   ERROR_XERROR
            xerror: XError event

       84   ERROR_XIOERROR
            xioerror: X I/O error

       90   ERROR_SCALLOC
            Alloc: calloc() failed on base

       91   ERROR_SCALLOC2
            Alloc: calloc() failed on rows

       92   ERROR_SREALLOC
            ScreenResize: realloc() failed on alt base

       96   ERROR_RESIZE
            ScreenResize: malloc() or realloc() failed

       102  ERROR_SAVE_PTR
            ScrnPointers: malloc/realloc() failed

       110  ERROR_SBRALLOC
            ScrollBarOn: realloc() failed on base

       111  ERROR_SBRALLOC2
            ScrollBarOn: realloc() failed on rows

       121  ERROR_MMALLOC
            my_memmove: malloc/realloc failed

BUGS

       Large pastes do not work on some systems.  This is not a bug in  xterm;
       it  is  a  bug  in  the pseudo terminal driver of those systems.  xterm
       feeds large pastes to the pty only as fast as the pty will accept data,
       but  some  pty  drivers do not return enough information to know if the
       write has succeeded.

       Many of the options are not resettable after xterm starts.

       This program still needs to be rewritten.  It should be split into very
       modular  sections, with the various emulators being completely separate
       widgets that do not know about each other.  Ideally, you’d like  to  be
       able  to  pick and choose emulator widgets and stick them into a single
       control widget.

       There needs to be a dialog box to allow entry  of  the  Tek  COPY  file
       name.

SEE ALSO

       resize(1), luit(1), X(7), pty(4), tty(4)
       Xterm Control Sequences (this is the file ctlseqs.ms).

       http://invisible-island.net/xterm/xterm.html
       http://invisible-island.net/xterm/ctlseqs/ctlseqs.html

AUTHORS

       Far too many people, including:

       Loretta Guarino Reid (DEC-UEG-WSL), Joel McCormack (DEC-UEG-WSL), Terry
       Weissman (DEC-UEG-WSL), Edward Moy (Berkeley),  Ralph  R.  Swick  (MIT-
       Athena),  Mark  Vandevoorde  (MIT-Athena),  Bob McNamara (DEC-MAD), Jim
       Gettys (MIT-Athena), Bob Scheifler (MIT X Consortium), Doug Mink (SAO),
       Steve  Pitschke  (Stellar),  Ron Newman (MIT-Athena), Jim Fulton (MIT X
       Consortium), Dave Serisky (HP),  Jonathan  Kamens  (MIT-Athena),  Jason
       Bacon,  Stephen P. Wall, David Wexelblat, and Thomas Dickey (invisible-
       island.net).

                                X Window System                       XTERM(1)