define_key man page on Archlinux

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define_key(3X)							define_key(3X)

       define_key - define a keycode

       #include <curses.h>

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

       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.

       The keycode must be greater than zero, and the string non-null,	other‐
       wise  ERR  is  returned.	 ERR may also be returned if there is insuffi‐
       cient memory to allocate the data to store the definition.  If no error
       is detected, OK is returned.

       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.

       keyok(3X), key_defined(3X).

       Thomas Dickey.


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