ncurses/ncurses/base/lib_beep.c

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/****************************************************************************
 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
 *     and: Thomas E. Dickey                        1996-on                 *
 *     and: Juergen Pfeifer                         2009                    *
 ****************************************************************************/

/*
 *	beep.c
 *
 *	The routine beep().
 *
 */

#include <curses.priv.h>

#ifndef CUR
#define CUR SP_TERMTYPE
#endif

MODULE_ID("$Id: lib_beep.c,v 1.17 2014/03/08 20:32:59 tom Exp $")

/*
 *	beep()
 *
 *	Sound the current terminal's audible bell if it has one.   If not,
 *	flash the screen if possible.
 *
 */

NCURSES_EXPORT(int)
NCURSES_SP_NAME(beep) (NCURSES_SP_DCL0)
{
    int res = ERR;

    T((T_CALLED("beep(%p)"), (void *) SP_PARM));

#ifdef USE_TERM_DRIVER
    if (SP_PARM != 0)
	res = CallDriver_1(SP_PARM, td_doBeepOrFlash, TRUE);
#else
    /* FIXME: should make sure that we are not in altchar mode */
    if (cur_term == 0) {
	res = ERR;
    } else if (bell) {
	res = NCURSES_PUTP2_FLUSH("bell", bell);
    } else if (flash_screen) {
	res = NCURSES_PUTP2_FLUSH("flash_screen", flash_screen);
	_nc_flush();
    }
#endif

    returnCode(res);
}

#if NCURSES_SP_FUNCS
NCURSES_EXPORT(int)
beep(void)
{
    return NCURSES_SP_NAME(beep) (CURRENT_SCREEN);
}
#endif