1/****************************************************************************
2 * Copyright (c) 1998,2000 Free Software Foundation, Inc.                   *
3 *                                                                          *
4 * Permission is hereby granted, free of charge, to any person obtaining a  *
5 * copy of this software and associated documentation files (the            *
6 * "Software"), to deal in the Software without restriction, including      *
7 * without limitation the rights to use, copy, modify, merge, publish,      *
8 * distribute, distribute with modifications, sublicense, and/or sell       *
9 * copies of the Software, and to permit persons to whom the Software is    *
10 * furnished to do so, subject to the following conditions:                 *
11 *                                                                          *
12 * The above copyright notice and this permission notice shall be included  *
13 * in all copies or substantial portions of the Software.                   *
14 *                                                                          *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
22 *                                                                          *
23 * Except as contained in this notice, the name(s) of the above copyright   *
24 * holders shall not be used in advertising or otherwise to promote the     *
25 * sale, use or other dealings in this Software without prior written       *
26 * authorization.                                                           *
27 ****************************************************************************/
28
29/****************************************************************************
30 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
31 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
32 ****************************************************************************/
33
34/*
35 *	flash.c
36 *
37 *	The routine flash().
38 *
39 */
40
41#include <curses.priv.h>
42#include <term.h>		/* beep, flash */
43
44MODULE_ID("$Id: lib_flash.c,v 1.6 2000/12/10 02:43:27 tom Exp $")
45
46/*
47 *	flash()
48 *
49 *	Flash the current terminal's screen if possible.   If not,
50 *	sound the audible bell if one exists.
51 *
52 */
53
54NCURSES_EXPORT(int)
55flash(void)
56{
57    int res = ERR;
58
59    T((T_CALLED("flash()")));
60
61    /* FIXME: should make sure that we are not in altchar mode */
62    if (flash_screen) {
63	TPUTS_TRACE("flash_screen");
64	res = putp(flash_screen);
65	_nc_flush();
66    } else if (bell) {
67	TPUTS_TRACE("bell");
68	res = putp(bell);
69	_nc_flush();
70    }
71
72    returnCode(res);
73}
74