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Command: key_defined | Section: 3 | Source: FreeBSD | File: key_defined.3.gz
key_defined(3X) Library calls key_defined(3X)
NAME
key_defined - test whether a curses 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
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 them be conditioned using NCURSES_VERSION.
AUTHORS
Thomas Dickey
SEE ALSO
define_key(3X)
ncurses 6.5 2024-03-16 key_defined(3X)