【VC开源代码栏目提醒】：网学会员鉴于大家对VC开源代码十分关注，论文会员在此为大家搜集整理了“PlaySound.cpp”一文，供大家参考学习

    
    #include "stdafx.h"
    #include "VideoVoiceTrans.h"
    #include "VideoVoiceTransDlg.h"
    #include "PlaySound.h"
    #include <mmsystem.h>
    #include <mmreg.h>
    
    #ifdef _DEBUG
    #define new DEBUG_NEW
    #undef THIS_FILE
    static char THIS_FILE[] = __FILE__;
    #endif
    
    
    //////////////////////////////////////////////////////////////////////
    // Construction/Destruction
    //////////////////////////////////////////////////////////////////////
    IMPLEMENT_DYNCREATE(PlaySound1, CWinThread)
    
    BEGIN_MESSAGE_MAP(PlaySound1, CWinThread)
     ON_THREAD_MESSAGE(WM_PLAYSOUND_STARTPLAYING, OnStartPlaying)
     ON_THREAD_MESSAGE(WM_PLAYSOUND_STOPPLAYING, OnStopPlaying)
     ON_THREAD_MESSAGE(WM_PLAYSOUND_PLAYBLOCK, OnWriteSoundData)
     ON_THREAD_MESSAGE(MM_WOM_DONE, OnEndPlaySoundData)
     ON_THREAD_MESSAGE(WM_PLAYSOUND_ENDTHREAD,OnEndThread)
    END_MESSAGE_MAP()
    
    
    
    
    PlaySound1::PlaySound1()
    {
    
    
    }
    
    PlaySound1::PlaySound1(CDialog *dialog)
    {
    
     log.Open("playsound.log",CFile::modeCreate | CFile::modeWrite);
     dlg=dialog;
    
     //GetDevProperty();
    
    /*
     memset(&m_WaveFormatEx,0x00,sizeof(m_WaveFormatEx));
    
     m_WaveFormatEx.wfx.wFormatTag = WAVE_FORMAT_GSM610;
     m_WaveFormatEx.wfx.nChannels = 1;
     m_WaveFormatEx.wfx.wBitsPerSample = 0;
     m_WaveFormatEx.wfx.cbSize = 2;
     m_WaveFormatEx.wfx.nSamplesPerSec = SAMPLEPSEC;
     m_WaveFormatEx.wfx.nAvgBytesPerSec = 1625; //(SAMPLEPSEC/320)*65 ;
     m_WaveFormatEx.wfx.nBlockAlign = 65;
     m_WaveFormatEx.wSamplesPerBlock=320;
    
    
    */
     memset(&m_WaveFormatEx,0x00,sizeof(m_WaveFormatEx));
    
     m_WaveFormatEx.wFormatTag = WAVE_FORMAT_PCM;
     m_WaveFormatEx.nChannels = 1;
     m_WaveFormatEx.wBitsPerSample = 8;
     m_WaveFormatEx.cbSize = 0;
     m_WaveFormatEx.nSamplesPerSec = SAMPLEPSEC;
     m_WaveFormatEx.nAvgBytesPerSec = SAMPLEPSEC ;
     m_WaveFormatEx.nBlockAlign = 1;
    
       
    
     Playing = FALSE;
    
     log.WriteString("\n In the constructor of Play sound");
    
    }
    
    
    PlaySound1::~PlaySound1()
    {
    
    }
    
    void PlaySound1::GetDevProperty()
    {
    CString format;
    WAVEOUTCAPS wavecap;
    int propno[]= { 
     WAVECAPS_LRVOLUME ,
     WAVECAPS_PITCH ,
     WAVECAPS_PLAYBACKRATE,
     WAVECAPS_SYNC ,
     WAVECAPS_VOLUME,
     WAVECAPS_SAMPLEACCURATE ,
     };
    
    CString propstr[]={
     "WAVECAPS_LRVOLUME ",
     "WAVECAPS_PITCH ",
     "WAVECAPS_PLAYBACKRATE",
     "WAVECAPS_SYNC" ,
     "WAVECAPS_VOLUME",
     "WAVECAPS_SAMPLEACCURATE" ,
     };
    
     // Special property
     format.Empty();
     format="\nSpecial properties... \n";
     for(int j=0;j<6;j++)
     {
     if( (wavecap.dwSupport & (unsigned)propno[j]) ==(unsigned) propno[j])
     {
     format+=propstr[j]+"\n";
     }
     }
    
     log.WriteString(format);
    
    
    }
    
    
    
    
    
    
    BOOL PlaySound1::InitInstance()
    {
    
    return TRUE;
    }
    
    
    
    
    
    
    int PlaySound1::ExitInstance()
    {
     return CWinThread::ExitInstance();
    }
    
    
    
    
    
    LRESULT PlaySound1::OnStartPlaying(WPARAM wParam, LPARAM lParam)
    {
     MMRESULT mmReturn = 0;
    
     if(Playing)
     return FALSE;
    
     log.WriteString("\n Starting playing");
    
     // open wavein device
      mmReturn = ::waveOutOpen( &m_hPlay, WAVE_MAPPER,
     &m_WaveFormatEx, ::GetCurrentThreadId(), 0, CALLBACK_THREAD);
    
     if(mmReturn )
     displayError(mmReturn,"PlayStart");
     else
     {
     Playing = TRUE;
     DWORD volume=0xffffffff;
     char str[100];
     waveOutSetVolume(m_hPlay,volume);
     }
    
    
    return TRUE;
    }
    
    
    
    
    
    void PlaySound1::displayError(int code,char mesg[])
    {
    
    char errorbuffer[MAX_PATH];
    char errorbuffer1[MAX_PATH];
    waveOutGetErrorText( code,errorbuffer,MAX_PATH);
    sprintf(errorbuffer1,"PLAY : %s :%x:%s",mesg,code,errorbuffer);
    AfxMessageBox(errorbuffer1);  
    
    }
    
    
    
    LRESULT PlaySound1::OnStopPlaying(WPARAM wParam, LPARAM lParam)
    {
    
     MMRESULT mmReturn = 0;
    
     if(Playing==FALSE)
     return FALSE;
    
            log.WriteString("\n Stopped  playing");
    
    
     mmReturn = ::waveOutReset(m_hPlay);
    
     if(!mmReturn)
     {
     Playing = FALSE;
     Sleep(500);
     mmReturn = ::waveOutClose(m_hPlay);
     }
    
    
     return mmReturn;
    }
    
    
    
    
    
    
    
    LRESULT PlaySound1::OnEndPlaySoundData(WPARAM wParam, LPARAM lParam)
    {
     LPWAVEHDR lpHdr = (LPWAVEHDR) lParam;
    
     if(lpHdr)
     {
     ::waveOutUnprepareHeader(m_hPlay, lpHdr, sizeof(WAVEHDR));
    
     }
    
     return ERROR_SUCCESS;
    }
    
    
    
    
    
    LRESULT PlaySound1::OnWriteSoundData(WPARAM wParam, LPARAM lParam)
    {
     MMRESULT mmResult = 0;
     int length=(int) wParam;
    
     if(((CVideoVoiceTransDlg*)dlg)->isAudioReceive==FALSE)
     {
     log.Wri