text: /****************************************************************************
   * Copyright (c) 1998-2013,2014 Free Software Foundation, Inc.              *
   *                                                                          *
   * Permission is hereby granted, free of charge, to any person obtaining a  *
   * copy of this software and associated documentation files (the            *
   * "Software"), to deal in the Software without restriction, including      *
   * without limitation the rights to use, copy, modify, merge, publish,      *
   * distribute, distribute with modifications, sublicense, and/or sell       *
   * copies of the Software, and to permit persons to whom the Software is    *
   * furnished to do so, subject to the following conditions:                 *
   *                                                                          *
   * The above copyright notice and this permission notice shall be included  *
   * in all copies or substantial portions of the Software.                   *
   *                                                                          *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
   * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
   * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
   * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
   * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
   * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
   *                                                                          *
   * Except as contained in this notice, the name(s) of the above copyright   *
   * holders shall not be used in advertising or otherwise to promote the     *
   * sale, use or other dealings in this Software without prior written       *
   * authorization.                                                           *
   ****************************************************************************/
  
  /****************************************************************************
   *  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
  