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NAME

       ttk::widget - Standard options and commands supported by Tk themed widgets
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DESCRIPTION

       This manual describes common widget options and commands.

STANDARD OPTIONS

       The following options are supported by all Tk themed widgets:

       Command-Line Name:-class
       Database Name:  undefined
       Database Class: undefined

              Specifies  the  window  class.  The class is used when querying the option database
              for the window's other options, to determine the default bindtags for  the  window,
              and  to  select the widget's default layout and style.  This is a read-only option:
              it may only be specified when the window is created, and may not  be  changed  with
              the configure widget command.

       Command-Line Name:-cursor
       Database Name:  cursor
       Database Class: Cursor

              Specifies  the  mouse  cursor  to  be  used  for  the widget.  See Tk_GetCursor and
              cursors(3tk) in the Tk reference manual for the legal values.  If set to the  empty
              string (the default), the cursor is inherited from the parent widget.

       Command-Line Name:-takefocus
       Database Name:  takeFocus
       Database Class: TakeFocus

              Determines  whether the window accepts the focus during keyboard traversal.  Either
              0, 1, a command prefix (to which the widget path  is  appended,  and  which  should
              return  0  or 1), or the empty string.  See options(3tk) in the Tk reference manual
              for the full description.

       Command-Line Name:-style
       Database Name:  style
       Database Class: Style

              May be used to specify a custom widget style.

SCROLLABLE WIDGET OPTIONS

       The following options are supported by widgets that are controllable by a scrollbar.   See
       scrollbar(3tk) for more information

       Command-Line Name:-xscrollcommand
       Database Name:  xScrollCommand
       Database Class: ScrollCommand

              A command prefix, used to communicate with horizontal scrollbars.
              When  the  view  in  the  widget's  window  changes, the widget will generate a Tcl
              command by concatenating the scroll command and two numbers.  Each of  the  numbers
              is  a  fraction  between 0 and 1 indicating a position in the document; 0 indicates
              the beginning, and 1 indicates the end.  The first  fraction  indicates  the  first
              information  in  the  widget that is visible in the window, and the second fraction
              indicates the information just after the last portion that is visible.

              Typically the -xscrollcommand option consists of  the  path  name  of  a  scrollbar
              widget  followed by “set”, e.g.  “.x.scrollbar set”.  This will cause the scrollbar
              to be updated whenever the view in the window changes.

              If this option is set to the empty string (the default), then no  command  will  be
              executed.

       Command-Line Name:-yscrollcommand
       Database Name:  yScrollCommand
       Database Class: ScrollCommand

              A   command  prefix,  used  to  communicate  with  vertical  scrollbars.   See  the
              description of -xscrollcommand above for details.

LABEL OPTIONS

       The following options are supported by labels, buttons, and other button-like widgets:

       Command-Line Name:-compound
       Database Name:  compound
       Database Class: Compound

              Specifies how to display the image relative to the text, in the case both -text and
              -image are present.  Valid values are:

              text   Display text only.

              image  Display image only.

              center Display text centered on top of image.

              top

              bottom

              left

              right  Display image above, below, left of, or right of the text, respectively.

              none   The default; display the image if present, otherwise the text.

       Command-Line Name:-image
       Database Name:  image
       Database Class: Image

              Specifies  an  image  to display.  This is a list of 1 or more elements.  The first
              element is the default image name.  The rest of the list is a sequence of statespec
              /  value pairs as per style map, specifying different images to use when the widget
              is in a particular state or combination of states.  All images in the  list  should
              have the same size.

       Command-Line Name:-padding
       Database Name:  padding
       Database Class: Padding

              Specifies the internal padding for the widget.  The padding is a list of up to four
              length specifications left top right bottom.   If  fewer  than  four  elements  are
              specified,  bottom  defaults  to  top,  right defaults to left, and top defaults to
              left.  In other words, a list of three numbers  specify  the  left,  vertical,  and
              right  padding;  a  list  of  two  numbers  specify the horizontal and the vertical
              padding; a single number specifies the same padding all the way around the widget.

       Command-Line Name:-text
       Database Name:  text
       Database Class: Text

              Specifies a text string to be displayed inside the  widget  (unless  overridden  by
              -textvariable).

       Command-Line Name:-textvariable
       Database Name:  textVariable
       Database Class: Variable

              Specifies  the  name  of a global variable whose value will be used in place of the
              -text resource.

       Command-Line Name:-underline
       Database Name:  underline
       Database Class: Underline

              If set, specifies the integer index (0-based) of a character to  underline  in  the
              text string.  The underlined character is used for mnemonic activation.

       Command-Line Name:-width
       Database Name:  width
       Database Class: Width

              If  greater  than  zero, specifies how much space, in character widths, to allocate
              for the text label.  If less than zero, specifies a  minimum  width.   If  zero  or
              unspecified, the natural width of the text label is used.

COMPATIBILITY OPTIONS

       This  option is only available for themed widgets that have “corresponding” traditional Tk
       widgets.

       Command-Line Name:-state
       Database Name:  state
       Database Class: State

              May be set to normal or disabled to control the disabled  state  bit.   This  is  a
              write-only  option:  setting  it  changes  the  widget  state, but the state widget
              command does not affect the -state option.

COMMANDS

       pathName cget option
              Returns the current value of the configuration option given by option.

       pathName configure ?option? ?value option value ...?
              Query or  modify  the  configuration  options  of  the  widget.   If  one  or  more
              option-value  pairs  are  specified,  then  the  command  modifies the given widget
              option(s) to have the given value(s); in this case the  command  returns  an  empty
              string.   If  option  is  specified  with no value, then the command returns a list
              describing the named option: the elements of the list are the option name, database
              name, database class, default value, and current value.  If no option is specified,
              returns a list describing all of the available options for pathName.

       pathName identify element x y
              Returns the name of the element under the point given by  x  and  y,  or  an  empty
              string if the point does not lie within any element.  x and y are pixel coordinates
              relative to the widget.  Some widgets accept other identify subcommands.

       pathName instate statespec ?script?
              Test the widget's state.  If script is not specified, returns 1 if the widget state
              matches statespec and 0 otherwise.  If script is specified, equivalent to
              if {[pathName instate stateSpec]} script

       pathName state ?stateSpec?
              Modify  or  inquire  widget state.  If stateSpec is present, sets the widget state:
              for each flag in stateSpec, sets the corresponding flag or clears it if prefixed by
              an exclamation point.
              Returns a new state spec indicating which flags were changed:
                     set changes [pathName state spec]
                     pathName state $changes
              will  restore  pathName  to  the  original  state.   If stateSpec is not specified,
              returns a list of the currently-enabled state flags.

       pathName xview args
              This command is used to query and change the horizontal position of the content  in
              the widget's window.  It can take any of the following forms:

              pathName xview
                     Returns  a  list  containing  two elements.  Each element is a real fraction
                     between 0 and 1; together they describe the horizontal span that is  visible
                     in  the  window.   For  example,  if  the first element is .2 and the second
                     element is .6, 20% of the widget's content is off-screen to  the  left,  the
                     middle 40% is visible in the window, and 40% of the content is off-screen to
                     the right.   These  are  the  same  values  passed  to  scrollbars  via  the
                     -xscrollcommand option.

              pathName xview index
                     Adjusts  the  view  in  the  window  so  that  the content given by index is
                     displayed at the left edge of the window.

              pathName xview moveto fraction
                     Adjusts the view in the window so that the character  fraction  of  the  way
                     through  the  content appears at the left edge of the window.  Fraction must
                     be a fraction between 0 and 1.

              pathName xview scroll number what
                     This command shifts the view in the window left or right according to number
                     and  what.   Number must be an integer.  What must be either units or pages.
                     If what is units, the view adjusts left or  right  by  number  average-width
                     characters  on  the display;  if it is pages then the view adjusts by number
                     screenfuls.  If number is negative  then  characters  farther  to  the  left
                     become  visible;   if  it  is  positive then characters farther to the right
                     become visible.

       pathName yview args
              This command is used to query and change the vertical position of  the  content  in
              the widget's window.  It can take any of the following forms:

              pathName yview
                     Returns  a  list  containing  two elements.  Each element is a real fraction
                     between 0 and 1; together they describe the vertical span that is visible in
                     the  window.  For example, if the first element is .2 and the second element
                     is .6, 20% of the widget's content is off-screen to the top, the middle  40%
                     is  visible  in  the  window,  and  40%  of the content is off-screen to the
                     bottom.   These  are  the  same  values  passed  to   scrollbars   via   the
                     -yscrollcommand option.

              pathName yview index
                     Adjusts  the  view  in  the  window  so  that  the content given by index is
                     displayed at the top edge of the window.

              pathName yview moveto fraction
                     Adjusts the view in the window so that the item fraction of the way  through
                     the  content  appears  at  the  top  edge of the window.  Fraction must be a
                     fraction between 0 and 1.

              pathName yview scroll number what
                     This command shifts the view in the window up or down  according  to  number
                     and  what.   Number must be an integer.  What must be either units or pages.
                     If what is units, the view  adjusts  up  or  down  by  number  average-width
                     characters  on  the display;  if it is pages then the view adjusts by number
                     screenfuls.  If number is negative then items  farther  to  the  top  become
                     visible;  if it is positive then items farther to the bottom become visible.

WIDGET STATES

       The widget state is a bitmap of independent state flags.  Widget state flags include:

       active The  mouse  cursor  is  over the widget and pressing a mouse button will cause some
              action to occur. (aka “prelight” (Gnome), “hot” (Windows), “hover”).

       disabled
              Widget is disabled under program control (aka “unavailable”, “inactive”).

       focus  Widget has keyboard focus.

       pressed
              Widget is being pressed (aka “armed” in Motif).

       selected
              “On”, “true”, or “current” for things like checkbuttons and radiobuttons.

       background
              Windows and the Mac have a  notion  of  an  “active”  or  foreground  window.   The
              background  state  is set for widgets in a background window, and cleared for those
              in the foreground window.

       readonly
              Widget should not allow user modification.

       alternate
              A widget-specific alternate display format.  For example, used for checkbuttons and
              radiobuttons  in  the  “tristate”  or  “mixed” state, and for buttons with -default
              active.

       invalid
              The widget's value is invalid.  (Potential uses: scale widget value out of  bounds,
              entry widget value failed validation.)

       hover  The  mouse cursor is within the widget.  This is similar to the active state; it is
              used in some themes for widgets that  provide  distinct  visual  feedback  for  the
              active widget in addition to the active element within the widget.

       A  state  specification or stateSpec is a list of state names, optionally prefixed with an
       exclamation point (!)  indicating that the bit is off.

EXAMPLES

              set b [ttk::button .b]

              # Disable the widget:
              $b state disabled

              # Invoke the widget only if it is currently pressed and enabled:
              $b instate {pressed !disabled} { .b invoke }

              # Reenable widget:
              $b state !disabled

SEE ALSO

       ttk::intro(3tk), ttk::style(3tk)

KEYWORDS

       state, configure, option