Leaked source code of windows server 2003
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/*==========================================================================
* * Copyright (C) 1999 Microsoft Corporation. All Rights Reserved. * * File: aplayb.h * Content: Definition of the CAudioPlaybackBuffer class * * History: * Date By Reason * ==== == ====== * 07/16/99 rodtoll Created * 08/03/99 rodtoll Modified to take DirectSound compatible volumes * 11/12/99 rodtoll Modified abstraction for new waveOut support. * Now abstracted types look almost like dsound objects * 01/27/2000 rodtoll Updated sound classes to accept playback flags, * buffer structures and DSBUFFERDESC instead of DSBUFFERDESC1 * ***************************************************************************/
#ifndef __AUDIOPLAYBACKBUFFER_H
#define __AUDIOPLAYBACKBUFFER_H
// Forward definition for the AudioPlaybackDevice include
class CAudioPlaybackBuffer;
// CAudioPlaybackBuffer
//
//
class CAudioPlaybackBuffer{public: CAudioPlaybackBuffer( ) {} ; virtual ~CAudioPlaybackBuffer() {} ;
public: // Initialization
virtual HRESULT Lock( DWORD dwWriteCursor, DWORD dwWriteBytes, LPVOID *lplpvBuffer1, LPDWORD lpdwSize1, LPVOID *lplpvBuffer2, LPDWORD lpdwSize2, DWORD dwFlags ) = 0; virtual HRESULT UnLock( LPVOID lpvBuffer1, DWORD dwSize1, LPVOID lpvBuffer2, DWORD dwSize2 ) = 0; virtual HRESULT SetVolume( LONG lVolume ) = 0; virtual HRESULT GetCurrentPosition( LPDWORD lpdwPosition ) = 0; virtual HRESULT SetCurrentPosition( DWORD dwPosition ) = 0; virtual HRESULT Play( DWORD dwPriority, DWORD dwFlags ) = 0; virtual HRESULT Stop() = 0; virtual HRESULT Restore() = 0;
virtual DWORD GetStartupLatency() = 0;
virtual HRESULT Get3DBuffer( LPDIRECTSOUND3DBUFFER *lplpds3dBuffer ) = 0; };
#endif
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