NAME

       define_key - define a curses keycode

SYNOPSIS

       #include <curses.h>

       int define_key(const char *definition, int keycode);

DESCRIPTION

       This  is an extension to the curses library.  It permits an application to define keycodes
       with their corresponding control strings, so that the ncurses library will interpret  them
       just as it would the predefined codes in the terminfo database.

       If  definition  is  NULL,  any existing one for the keycode is removed.  Similarly, if the
       given keycode is negative or zero,  any  existing  string  for  the  given  definition  is
       removed.

RETURN VALUE

       Either keycode must be greater than zero, or definition must be non-NULL, otherwise ERR is
       returned.  ERR may also be returned if there is insufficient memory to allocate  the  data
       to store the definition.  If no error is detected, OK 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.

AUTHORS

       Thomas Dickey

SEE ALSO

       keyok(3NCURSES), key_defined(3NCURSES)