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. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34 #ifndef lint
35 static char sccsid[] = "@(#)getch.c 8.2 (Berkeley) 5/4/94";
36 #endif /* not lint */
37
38 #include "curses.h"
39
40 /*
41 * wgetch --
42 * Read in a character from the window.
43 */
44 int
wgetch(win)45 wgetch(win)
46 register WINDOW *win;
47 {
48 register int inp, weset;
49
50 if (!(win->flags & __SCROLLOK) && (win->flags & __FULLWIN)
51 && win->curx == win->maxx - 1 && win->cury == win->maxy - 1)
52 return (ERR);
53 #ifdef CURSES_DEBUG
54 __CTRACE("wgetch: __echoit = %d, __rawmode = %d\n",
55 __echoit, __rawmode);
56 #endif
57 if (__echoit && !__rawmode) {
58 cbreak();
59 weset = 1;
60 } else
61 weset = 0;
62
63 inp = getchar();
64 #ifdef CURSES_DEBUG
65 __CTRACE("wgetch got '%s'\n", unctrl(inp));
66 #endif
67 if (__echoit) {
68 mvwaddch(curscr,
69 win->cury + win->begy, win->curx + win->begx, inp);
70 waddch(win, inp);
71 }
72 if (weset)
73 nocbreak();
74 return (inp);
75 }
76