VC++ 中WAV音频文件操作
VC++中WAV音频文件操作的方法，谁能给一个封装好的类了，包括读写操作。
谢谢！ wav
[解决办法]
头文件：

#ifndef CLASS_WAV_FILE_H_
#define CLASS_WAV_FILE_H_

#define WAVEFILE_READ   1
#define WAVEFILE_WRITE  2
#include <Windows.h>
#include <MMSystem.h>
#pragma comment(lib,"winmm.lib")

class CWaveFile
{
public:
    WAVEFORMATEX* m_pwfx;        // Pointer to WAVEFORMATEX structure
    HMMIO         m_hmmio;       // MM I/O handle for the WAVE
    MMCKINFO      m_ck;          // Multimedia RIFF chunk
    MMCKINFO      m_ckRiff;      // Use in opening a WAVE file
    DWORD         m_dwSize;      // The size of the wave file
    MMIOINFO      m_mmioinfoOut;
    DWORD         flag_;
    BYTE*         m_pbData;
    BYTE*         m_pbDataCur;
    ULONG         m_ulDataSize;
    CHAR*         m_pResourceBuffer;
    WAVEFORMATEX  wave_format_;

protected:
    HRESULT ReadMMIO();
    HRESULT WriteMMIO( WAVEFORMATEX *pwfxDest );

public:
    CWaveFile();
    
    ~CWaveFile();
    
    HRESULT Open( 
        LPTSTR filename, 
        DWORD flag,
        UINT channels, 
        ULONG samples_per_sec, 
        UINT bits_per_sample);

    HRESULT Close();

    HRESULT Read( BYTE* pBuffer, DWORD dwSizeToRead, DWORD* pdwSizeRead );
    
    HRESULT Write( UINT nSizeToWrite, BYTE* pbData, UINT* pnSizeWrote );

    DWORD   GetSize();
    
    HRESULT ResetFile();
    
    WAVEFORMATEX* GetFormat() { return m_pwfx; };
};

#endif // ! CLASS_WAV_FILE_H_