55 lines
1.8 KiB
C
55 lines
1.8 KiB
C
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/*==========================================================================
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*
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* Copyright (C) 1999 Microsoft Corporation. All Rights Reserved.
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*
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* File: aplayb.h
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* Content: Definition of the CAudioPlaybackBuffer class
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*
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* History:
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* Date By Reason
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* ==== == ======
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* 07/16/99 rodtoll Created
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* 08/03/99 rodtoll Modified to take DirectSound compatible volumes
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* 11/12/99 rodtoll Modified abstraction for new waveOut support.
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* Now abstracted types look almost like dsound objects
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* 01/27/2000 rodtoll Updated sound classes to accept playback flags,
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* buffer structures and DSBUFFERDESC instead of DSBUFFERDESC1
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*
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***************************************************************************/
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#ifndef __AUDIOPLAYBACKBUFFER_H
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#define __AUDIOPLAYBACKBUFFER_H
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// Forward definition for the AudioPlaybackDevice include
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class CAudioPlaybackBuffer;
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// CAudioPlaybackBuffer
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//
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//
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class CAudioPlaybackBuffer
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{
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public:
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CAudioPlaybackBuffer( ) {} ;
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virtual ~CAudioPlaybackBuffer() {} ;
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public: // Initialization
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virtual HRESULT Lock( DWORD dwWriteCursor, DWORD dwWriteBytes, LPVOID *lplpvBuffer1, LPDWORD lpdwSize1, LPVOID *lplpvBuffer2, LPDWORD lpdwSize2, DWORD dwFlags ) = 0;
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virtual HRESULT UnLock( LPVOID lpvBuffer1, DWORD dwSize1, LPVOID lpvBuffer2, DWORD dwSize2 ) = 0;
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virtual HRESULT SetVolume( LONG lVolume ) = 0;
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virtual HRESULT GetCurrentPosition( LPDWORD lpdwPosition ) = 0;
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virtual HRESULT SetCurrentPosition( DWORD dwPosition ) = 0;
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virtual HRESULT Play( DWORD dwPriority, DWORD dwFlags ) = 0;
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virtual HRESULT Stop() = 0;
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virtual HRESULT Restore() = 0;
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virtual DWORD GetStartupLatency() = 0;
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virtual HRESULT Get3DBuffer( LPDIRECTSOUND3DBUFFER *lplpds3dBuffer ) = 0;
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};
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#endif
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