69 lines
2.7 KiB
C
69 lines
2.7 KiB
C
/*
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* $Id$
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*/
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/*
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* Harbour Project source code:
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* TONE() function
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*
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* Copyright 1999 Chen Kedem <niki@actcom.co.il>
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* www - http://www.harbour-project.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version, with one exception:
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*
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* The exception is that if you link the Harbour Runtime Library (HRL)
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* and/or the Harbour Virtual Machine (HVM) with other files to produce
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* an executable, this does not by itself cause the resulting executable
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* to be covered by the GNU General Public License. Your use of that
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* executable is in no way restricted on account of linking the HRL
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* and/or HVM code into it.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA (or visit
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* their web site at http://www.gnu.org/).
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*
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*/
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/*
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* ChangeLog:
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*
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* V 1.10 David G. Holm Added __MINGW32__ support
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* V 1.8 David G. Holm Added '&& ! defined(_Windows)'
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* check to all __BORLANDC__ checks.
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* V 1.6 David G. Holm Added Win32 Beep(), thanks to
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* Chen Kedem.
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* V 1.4 David G. Holm Upper limit for frequency for OS/2
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* DosBeep() is 32767. The CA-Clipper
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* Tone() function does not have an
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* upper limit on the duration, so I
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* had to add an inner loop to deal
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* with very long durations. There are
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* actually 18.2 Clipper (PC) timer
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* ticks per second.
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* V 1.2 David G. Holm Added OS/2 GCC/EMX support.
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* V 1.1 David G. Holm Split machine dependent code into
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* hb_tone() function for internal use
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* by other Harbour C functions.
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* V 1.0 Chen Kedem Initial version (only OS/2 support).
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*
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*/
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#include "hbapi.h"
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#include "hbapigt.h"
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HB_FUNC( TONE )
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{
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if( ISNUM( 1 ) )
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hb_gtTone( hb_parnd( 1 ), ( ISNUM( 2 ) ? hb_parnd( 2 ) : 1.0 ) );
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}
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