trusty (3) use_legacy_coding.3ncurses.gz

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 implementations.
       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(3NCURSES)