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key_defined(3X) 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.
key_defined(3X)