对于录音来说最重要的就是CSoundIn类,下面就是该类的定义:

namespace perdubug {  // prevent the name-space pollution 

class CSoundIn 

{

public:   

                BOOL     __initMic(); // get the best wave format supported by your sound card

                                                    // and then i will use the format to capture sound.

                void     __closeMic();

                BOOL     __openMic(); // open device and begin to capture with the best format(when

                                                       // invoke __initMic function then you will get the best format

                                                       // supported by host's sound card

                //

                // if your want to capture sound and export into a wav file please invoke this function

                // to tell me the full path then i will create the wav file.

                //

                void     __createOutputWaveFile(const TCHAR * lpszFileName);

                // if you invoke any member function return error/false please

                // use this function to get the result...

                DWORD    __getLastError();

                //

                // when the capture buffer is filled please invoke this function to 'add buffer'(Actually

                // you should create two-circular buffers,when 1st buffer is filled then switch to 2st,1st

                // buffer will be wrote into wav file.

                //

                void AddBuffer();

                virtual ~CSoundIn();

                friend CSoundIn & theSoundCapture();

private:

                BOOL  GetBestWaveFormat(WAVEFORMATEX & waveFormatEx);

                // because sound card is one and only so i must limit the number of CSoundIn object,

                // but how to limit the class object nums?maybe put constructor into private scope is

                // a good idea,:-)

                CSoundIn();         

private:

                WAVEINCAPS                    m_WaveInDevCaps;

                HWAVEIN          

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