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key_defined 3x 2023-12-16 ncurses 6.4 Library calls

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 6.4                       2023-12-16                   key_defined(3x)