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legacy_coding (3X)                                                                          legacy_coding (3X)



NAME
       use_legacy_coding - use terminal's default colors

SYNOPSIS
       #include <curses.h>

       int use_legacy_coding(int level);

DESCRIPTION
       The  use_legacy_coding()  function  is  an  extension to the curses library.  It allows the caller to
       change the result of unctrl, and suppress related checks within the library that would normally cause
       nonprinting characters to be rendered in visible form.  This affects only 8-bit characters.

       The level parameter controls the result:

              0    the  library functions normally, rendering nonprinting characters as described in unctrl.

              1    the library ignores isprintf for codes in the range 160-255.

              2    the library ignores isprintf for codes in the range 128-255.  It also modifies the output
                   of unctrl, showing codes in the range 128-159 as is.

RETURN VALUE
       If  the screen has not been initialized, or the level parameter is out of range, the function returns
       ERR.  Otherwise, it returns the previous level: 0, 1 or 2.

PORTABILITY
       This routine is specific to ncurses.  It was not supported on Version 7, BSD or System V  implementa-tions. implementations.
       tions.   It  is  recommended  that  any  code  depending  on  ncurses extensions be conditioned using
       NCURSES_VERSION.

SEE ALSO
       unctrl.

AUTHOR
       Thomas Dickey (to support lynx's font-switching feature).



                                                                                           legacy_coding(3X)