NAME

       SP, acs_map, boolcodes, boolfnames, boolnames, cur_term, numcodes, numfnames, numnames, strcodes,
       strfnames, strnames, ttytype - curses terminfo global variables

SYNOPSIS

       #include <curses.h>
       #include <term.h>

       chtype acs_map[];
       NCURSES_CONST char * const * boolcodes;
       NCURSES_CONST char * const * boolfnames;
       NCURSES_CONST char * const * boolnames;
       TERMINAL * cur_term;
       NCURSES_CONST char * const * numcodes;
       NCURSES_CONST char * const * numfnames;
       NCURSES_CONST char * const * numnames;
       NCURSES_CONST char * const * strcodes;
       NCURSES_CONST char * const * strfnames;
       NCURSES_CONST char * const * strnames;
       char ttytype[];

DESCRIPTION

       This  page  summarizes  variables  provided by the curses library's low-level terminfo interface.  A more
       complete description is given in the curs_terminfo(3X) manual page.

       Depending on the configuration, these may be actual variables, or macros  (see  threads(3NCURSES))  which
       provide  read-only access to curses's state.  In either case, applications should treat them as read-only
       to avoid confusing the library.

   Alternate Character Set Mapping
       After initializing the curses or terminfo interfaces, the acs_map array holds information used to  trans‐
       late cells with the A_ALTCHARSET video attribute into line-drawing characters.

       The encoding of the information in this array has changed periodically.  Application developers need only
       know that it is used for the "ACS_" constants in <curses.h>.

       The comparable data for the wide-character library is a private variable.

   Current Terminal Data
       After  initializing  the curses or terminfo interfaces, the cur_term contains data describing the current
       terminal.  This variable is also set as a side-effect of set_term(3X) and delscreen(3X).

       It is possible to save a value of cur_term for subsequent use as a parameter to set_term,  for  switching
       between  screens.   Alternatively,  one  can  save the return value from newterm or setupterm to reuse in
       set_term.

   Terminfo Names
       The tic(1) and infocmp(1) programs use lookup tables for the long and short names of  terminfo  capabili‐
       ties, as well as the corresponding names for termcap capabilities.  These are available to other applica‐
       tions, though the hash-tables are not available.

       The long terminfo capability names use a "l" (ell) in their names: boolfnames numfnames strfnames

       These are the short names for terminfo capabilities: boolnames, numnames, and strnames.

       These are the corresponding names used for termcap descriptions: boolcodes, numcodes, and strcodes.

   Terminal Type
       On  initialization  of the curses or terminfo interfaces, setupterm copies the terminal name to the array
       ttytype.

NOTES

       The low-level terminfo interface is initialized using setupterm(3X).  The  upper-level  curses  interface
       uses the low-level terminfo interface, internally.

PORTABILITY

       X/Open  Curses does not describe any of these except for cur_term.  (The inclusion of cur_term appears to
       be an oversight, since other comparable low-level information is omitted by X/Open).

       Other implementations may have comparable variables.  Some implementations provide the variables in their
       libraries, but omit them from the header files.

SEE ALSO

       ncurses(3NCURSES), terminfo(3NCURSES), threads(3NCURSES), terminfo(5).

                                                                                    terminfo_variables(3NCURSES)