           keyok - enable or disable a keycode

## SYNOPSIS

           #include <curses.h>

           int keyok(int keycode, bool enable);

## DESCRIPTION

           This is an extension to the curses library.  It permits an
           application to disable specific keycodes, rather than  use
           the  keypad  function  to disable all keycodes.  Keys that
           have been disabled can be reenabled.

## RETURN VALUE

           The keycode  must  be  greater  than  zero,  else  ERR  is
           returned.   If  it  does  not correspond to a defined key,
           then ERR is returned.  If the enable  parameter  is  true,
           then  the  key  must  have  been disabled, and vice versa.
           Otherwise, the function returns OK.

## 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  con-
           ditioned using NCURSES_VERSION.

## SEE ALSO

           define_key(3X).

## AUTHOR

           Thomas Dickey.