term_variables 3x

term_variables(3x)                                   term_variables(3x)


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


       #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[];


       This  page summarizes variables provided by the curses li-
       brary's low-level terminfo interface.  A more complete de-
       scription is given in the curs_terminfo(3x) manual page.

       Depending  on the configuration, these may be actual vari-
       ables, or  macros  (see  curs_threads(3x))  which  provide
       read-only  access  to curses's state.  In either case, ap-
       plications should treat them as read-only to avoid confus-
       ing the library.

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

       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 curs_initscr(3x)
       and curs_initscr(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(1m)  and infocmp(1m) programs use lookup tables for
       the long and short names of terminfo capabilities, as well
       as  the  corresponding  names  for  termcap  capabilities.
       These are available  to  other  applications,  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: bool-
       names, numnames, and strnames.

       These  are  the  corresponding  names used for termcap de-
       scriptions: boolcodes, numcodes, and strcodes.

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


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


       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.


       curses(3x),      curs_terminfo(3x),      curs_threads(3x),


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