key_defined 3x 2022-02-12 ncurses 6.4 Library calls

key_defined(3x)                  Library calls                 key_defined(3x)

NAME

       key_defined - check if a keycode is defined

SYNOPSIS

       #include <curses.h>

       int key_defined(const char *definition);

DESCRIPTION

       This  is an extension to the curses library.  It permits an application
       to determine if a string is currently bound to any keycode.

RETURN VALUE

       If the string is bound to a keycode, its value (greater than  zero)  is
       returned.   If  no  keycode  is bound, zero is returned.  If the string
       conflicts with longer strings which are bound to keys, -1 is returned.

PORTABILITY

       These routines are specific to ncurses.  They  were  not  supported  on
       Version 7, BSD or System V implementations.  It is recommended that any
       code depending on them be conditioned using NCURSES_VERSION.

SEE ALSO

       define_key(3x).

AUTHOR

       Thomas Dickey.



ncurses 6.4                       2022-02-12                   key_defined(3x)