NAME

       define_key - define a 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  the  given  string  is  null,  any  existing  definition  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

       The keycode must be greater than zero, and the string 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.

SEE ALSO

       keyok(3NCURSES), key_defined(3NCURSES).

AUTHOR

       Thomas Dickey.

                                                                             define_key(3NCURSES)