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Playing a Compact Disc Track

The following example opens a CD audio device, plays the track specified by the bTrack parameter, and closes the device after playback is complete. It uses the mciSendCommand function.

// Plays a specified audio track using MCI_OPEN, MCI_PLAY. Returns as 
// soon as playback begins. The window procedure function for the 
// specified window will be notified when playback is complete. 
// Returns 0L on success; otherwise, returns an MCI error code.

DWORD playCDTrack(HWND hWndNotify, BYTE bTrack)
    UINT wDeviceID;
    DWORD dwReturn;
    MCI_OPEN_PARMS mciOpenParms;
    MCI_SET_PARMS mciSetParms;
    MCI_PLAY_PARMS mciPlayParms;

    // Open the CD audio device by specifying the device name.
    mciOpenParms.lpstrDeviceType = "cdaudio";
    if (dwReturn = mciSendCommand(NULL, MCI_OPEN,
        MCI_OPEN_TYPE, (DWORD)(LPVOID) &mciOpenParms))
        // Failed to open device. Don't close it; just return error.
        return (dwReturn);

    // The device opened successfully; get the device ID.
    wDeviceID = mciOpenParms.wDeviceID;

    // Set the time format to track/minute/second/frame (TMSF).
    mciSetParms.dwTimeFormat = MCI_FORMAT_TMSF;
    if (dwReturn = mciSendCommand(wDeviceID, MCI_SET, 
        MCI_SET_TIME_FORMAT, (DWORD)(LPVOID) &mciSetParms))
        mciSendCommand(wDeviceID, MCI_CLOSE, 0, NULL);
        return (dwReturn);
    // Begin play from the specified track and play to the beginning 
    // of the next track. The window procedure function for the parent 
    // window will be notified with an MM_MCINOTIFY message when 
    // playback is complete. Unless the play command fails, the window 
    // procedure closes the device.

    mciPlayParms.dwFrom = 0L;
    mciPlayParms.dwTo = 0L;
    mciPlayParms.dwFrom = MCI_MAKE_TMSF(bTrack, 0, 0, 0);
    mciPlayParms.dwTo = MCI_MAKE_TMSF(bTrack + 1, 0, 0, 0);
    mciPlayParms.dwCallback = (DWORD) hWndNotify;
    if (dwReturn = mciSendCommand(wDeviceID, MCI_PLAY,
        (DWORD)(LPVOID) &mciPlayParms))
        mciSendCommand(wDeviceID, MCI_CLOSE, 0, NULL);
        return (dwReturn);

    return (0L);

To specify a position relative to a track on a compact disc, you must use the track/minute/second/frame (TMSF) time format.