1 /*
2 * Copyright (c) 1981, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #ifndef lint
31 static char sccsid[] = "@(#)getch.c 8.2 (Berkeley) 5/4/94";
32 #endif /* not lint */
33
34 #include "curses.h"
35
36 /*
37 * wgetch --
38 * Read in a character from the window.
39 */
40 int
wgetch(win)41 wgetch(win)
42 register WINDOW *win;
43 {
44 register int inp, weset;
45
46 if (!(win->flags & __SCROLLOK) && (win->flags & __FULLWIN)
47 && win->curx == win->maxx - 1 && win->cury == win->maxy - 1)
48 return (ERR);
49 #ifdef DEBUG
50 __CTRACE("wgetch: __echoit = %d, __rawmode = %d\n",
51 __echoit, __rawmode);
52 #endif
53 if (__echoit && !__rawmode) {
54 cbreak();
55 weset = 1;
56 } else
57 weset = 0;
58
59 inp = getchar();
60 #ifdef DEBUG
61 __CTRACE("wgetch got '%s'\n", unctrl(inp));
62 #endif
63 if (__echoit) {
64 mvwaddch(curscr,
65 win->cury + win->begy, win->curx + win->begx, inp);
66 waddch(win, inp);
67 }
68 if (weset)
69 nocbreak();
70 return (inp);
71 }
72