key_defined(3x) key_defined(3x)
key_defined - check if a keycode is defined
#include <curses.h>
int key_defined(const char *definition);
This is an extension to the curses library. It permits an
application to determine if a string is currently bound to
any keycode.
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.
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 con-
ditioned using NCURSES_VERSION.
define_key(3x).
Thomas Dickey.
key_defined(3x)