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      1 /*	$NetBSD: keypad.c,v 1.16 2024/12/23 02:58:03 blymn Exp $  */
      2 
      3 /*-
      4  * Copyright (c) 1998-1999 Brett Lymn (blymn (at) baea.com.au, brett_lymn (at) yahoo.com)
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. The name of the author may not be used to endorse or promote products
     13  *    derived from this software without specific prior written permission
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  *
     26  *
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 #ifndef lint
     31 __RCSID("$NetBSD: keypad.c,v 1.16 2024/12/23 02:58:03 blymn Exp $");
     32 #endif				/* not lint */
     33 
     34 #include "curses.h"
     35 #include "curses_private.h"
     36 
     37 /*
     38  * keypad --
     39  *	Turn on and off interpretation of function/keypad keys in the
     40  *	given window.
     41  */
     42 int
     43 keypad(WINDOW *win, bool bf)
     44 {
     45 	__CTRACE(__CTRACE_MISC,
     46 	    "keypad: win %p, %s\n", win, bf ? "TRUE" : "FALSE");
     47 	if (__predict_false(win == NULL))
     48 		return ERR;
     49 
     50 	if (bf) {
     51 		win->flags |= __KEYPAD;
     52 		if (!(curscr->flags & __KEYPAD)) {
     53 			tputs(keypad_xmit, 0, __cputchar);
     54 			curscr->flags |= __KEYPAD;
     55 		}
     56 	} else
     57 		win->flags &= ~__KEYPAD;
     58 
     59 	return OK;
     60 }
     61 
     62 /*
     63  * is_keypad --
     64  *	Return true if window is set for keypad.
     65  */
     66 bool
     67 is_keypad(const WINDOW *win)
     68 {
     69 	if (__predict_false(win == NULL))
     70 		return ERR;
     71 
     72 
     73 	return win->flags & __KEYPAD ? true : false;
     74 }
     75