1 /****************************************************************************
2  * Copyright (c) 1998-2013,2014 Free Software Foundation, Inc.              *
3  *                                                                          *
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9  * copies of the Software, and to permit persons to whom the Software is    *
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11  *                                                                          *
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14  *                                                                          *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
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22  *                                                                          *
23  * Except as contained in this notice, the name(s) of the above copyright   *
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28 
29 /****************************************************************************
30  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
31  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
32  *     and: Thomas E. Dickey                        1996-on                 *
33  *     and: Juergen Pfeifer                         2009                    *
34  ****************************************************************************/
35 
36 /*
37  *	beep.c
38  *
39  *	The routine beep().
40  *
41  */
42 
43 #include <curses.priv.h>
44 
45 #ifndef CUR
46 #define CUR SP_TERMTYPE
47 #endif
48 
49 MODULE_ID("$Id: lib_beep.c,v 1.17 2014/03/08 20:32:59 tom Exp $")
50 
51 /*
52  *	beep()
53  *
54  *	Sound the current terminal's audible bell if it has one.   If not,
55  *	flash the screen if possible.
56  *
57  */
58 
59 NCURSES_EXPORT(int)
60 NCURSES_SP_NAME(beep) (NCURSES_SP_DCL0)
61 {
62     int res = ERR;
63 
64     T((T_CALLED("beep(%p)"), (void *) SP_PARM));
65 
66 #ifdef USE_TERM_DRIVER
67     if (SP_PARM != 0)
68 	res = CallDriver_1(SP_PARM, td_doBeepOrFlash, TRUE);
69 #else
70     /* FIXME: should make sure that we are not in altchar mode */
71     if (cur_term == 0) {
72 	res = ERR;
73     } else if (bell) {
74 	res = NCURSES_PUTP2_FLUSH("bell", bell);
75     } else if (flash_screen) {
76 	res = NCURSES_PUTP2_FLUSH("flash_screen", flash_screen);
77 	_nc_flush();
78     }
79 #endif
80 
81     returnCode(res);
82 }
83 
84 #if NCURSES_SP_FUNCS
85 NCURSES_EXPORT(int)
86 beep(void)
87 {
88     return NCURSES_SP_NAME(beep) (CURRENT_SCREEN);
89 }
90 #endif
91