35 lines
1.5 KiB
C
35 lines
1.5 KiB
C
/***********************************************************************/
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/* */
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/* Objective Caml */
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/* */
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/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
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/* */
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/* Copyright 1996 Institut National de Recherche en Informatique et */
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/* en Automatique. All rights reserved. This file is distributed */
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/* under the terms of the GNU Library General Public License, with */
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/* the special exception on linking described in file ../../LICENSE. */
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/* */
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/***********************************************************************/
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/* $Id$ */
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#include "libgraph.h"
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value caml_gr_sound(value vfreq, value vdur)
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{
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XKeyboardControl kbdcontrol;
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caml_gr_check_open();
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kbdcontrol.bell_pitch = Int_val(vfreq);
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kbdcontrol.bell_duration = Int_val(vdur);
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XChangeKeyboardControl(caml_gr_display, KBBellPitch | KBBellDuration,
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&kbdcontrol);
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XBell(caml_gr_display, 0);
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kbdcontrol.bell_pitch = -1; /* restore default value */
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kbdcontrol.bell_duration = -1; /* restore default value */
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XChangeKeyboardControl(caml_gr_display, KBBellPitch | KBBellDuration,
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&kbdcontrol);
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XFlush(caml_gr_display);
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return Val_unit;
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}
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