bionic (3) key_defined.3ncurses.gz

Provided by: ncurses-doc_6.1-1ubuntu1.18.04.1_all bug

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(3NCURSES).


AUTHOR
       Thomas Dickey.

                                                                                           key_defined(3NCURSES)