xref: /netbsd/lib/libcurses/inch.c (revision bf9ec67e)
1 /*	$NetBSD: inch.c,v 1.5 2002/01/02 10:38:27 blymn Exp $	*/
2 
3 /*-
4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Julian Coleman.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *        This product includes software developed by the NetBSD
21  *        Foundation, Inc. and its contributors.
22  * 4. Neither the name of The NetBSD Foundation nor the names of its
23  *    contributors may be used to endorse or promote products derived
24  *    from this software without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36  * POSSIBILITY OF SUCH DAMAGE.
37  */
38 
39 #include <sys/cdefs.h>
40 #ifndef lint
41 __RCSID("$NetBSD: inch.c,v 1.5 2002/01/02 10:38:27 blymn Exp $");
42 #endif				/* not lint */
43 
44 #include "curses.h"
45 #include "curses_private.h"
46 
47 #ifndef _CURSES_USE_MACROS
48 
49 /*
50  * inch --
51  *	Return character at cursor position from stdscr.
52  */
53 chtype
54 inch(void)
55 {
56 	return winch(stdscr);
57 }
58 
59 /*
60  * mvinch --
61  *      Return character at position (y, x) from stdscr.
62  */
63 chtype
64 mvinch(int y, int x)
65 {
66 	return mvwinch(stdscr, y, x);
67 }
68 
69 /*
70  * mvwinch --
71  *      Return character at position (y, x) from the given window.
72  */
73 chtype
74 mvwinch(WINDOW *win, int y, int x)
75 {
76 	if (wmove(win, y, x) == ERR)
77 		return ERR;
78 
79 	return winch(win);
80 }
81 
82 #endif
83 
84 /*
85  * winch --
86  *	Return character at cursor position.
87  */
88 chtype
89 winch(WINDOW *win)
90 {
91 
92 	chtype	 ch;
93 
94 	ch = (chtype) (((win)->lines[(win)->cury]->line[(win)->curx].ch & __CHARTEXT) |
95 	  (chtype) ((win)->lines[(win)->cury]->line[(win)->curx].attr & __ATTRIBUTES));
96 	return (ch);
97 }
98