ncurses/lib_beep.c

   1
   2 /***************************************************************************
   3 *                            COPYRIGHT NOTICE                              *
   4 ****************************************************************************
   5 *                ncurses is copyright (C) 1992-1995                        *
   6 *                          Zeyd M. Ben-Halim                               *
   7 *                          zmbenhal@netcom.com                             *
   8 *                          Eric S. Raymond                                 *
   9 *                          esr@snark.thyrsus.com                           *
  10 *                                                                          *
  11 *        Permission is hereby granted to reproduce and distribute ncurses  *
  12 *        by any means and for any fee, whether alone or as part of a       *
  13 *        larger distribution, in source or in binary form, PROVIDED        *
  14 *        this notice is included with any such distribution, and is not    *
  15 *        removed from any of its header files. Mention of ncurses in any   *
  16 *        applications linked with it is highly appreciated.                *
  17 *                                                                          *
  18 *        ncurses comes AS IS with no warranty, implied or expressed.       *
  19 *                                                                          *
  20 ***************************************************************************/
  21
  22
  23 /*
  24  *      beep.c
  25  *
  26  *      Routines beep() and flash()
  27  *
  28  */
  29
  30 #include <curses.priv.h>
  31 #include <term.h>       /* beep, flash */
  32
  33 MODULE_ID("$Id: lib_beep.c,v 1.3 1997/02/02 00:27:01 tom Exp $")
  34
  35 /*
  36  *      beep()
  37  *
  38  *      Sound the current terminal's audible bell if it has one.   If not,
  39  *      flash the screen if possible.
  40  *
  41  */
  42
  43 int beep(void)
  44 {
  45         T((T_CALLED("beep()")));
  46
  47         /* FIXME: should make sure that we are not in altchar mode */
  48         if (bell) {
  49                 TPUTS_TRACE("bell");
  50                 return(putp(bell));
  51         } else if (flash_screen) {
  52                 TPUTS_TRACE("flash_screen");
  53                 return(putp(flash_screen));
  54         }
  55         else
  56                 returnCode(ERR);
  57 }
  58
  59 /*
  60  *      flash()
  61  *
  62  *      Flash the current terminal's screen if possible.   If not,
  63  *      sound the audible bell if one exists.
  64  *
  65  */
  66
  67 int flash(void)
  68 {
  69         T((T_CALLED("flash()")));
  70
  71         /* FIXME: should make sure that we are not in altchar mode */
  72         if (flash_screen) {
  73                 TPUTS_TRACE("flash_screen");
  74                 returnCode(putp(flash_screen));
  75         } else if (bell) {
  76                 TPUTS_TRACE("bell");
  77                 returnCode(putp(bell));
  78         }
  79         else
  80                 returnCode(ERR);
  81 }