public void Open()
{
lock (waveOpenCloseLock)
{
if (hWaveOut != IntPtr.Zero)
{
return;
}
WAVEFORMATEX waveFormatEx = new WAVEFORMATEX();
waveFormatEx.wFormatTag = (ushort)WaveFormats.WAVE_FORMAT_PCM;
waveFormatEx.nChannels = (ushort)this.channels;
waveFormatEx.nSamplesPerSec = (uint)this.frequency;
waveFormatEx.wBitsPerSample = (ushort)this.bits;
waveFormatEx.nBlockAlign = (ushort)(waveFormatEx.nChannels * (waveFormatEx.wBitsPerSample / 8));
waveFormatEx.nAvgBytesPerSec = waveFormatEx.nSamplesPerSec * waveFormatEx.nBlockAlign;
waveFormatEx.cbSize = 0;
callbackProc = new WaveOutProc(WaveOutCallback);
Debug.WriteLine(waveOutOpen(out hWaveOut, WAVE_MAPPER, ref waveFormatEx, callbackProc, UIntPtr.Zero, WaveOutFlags.CALLBACK_FUNCTION));
Debug.WriteLine("hWaveOut: " + hWaveOut.ToString());
lock (bufferLock)
{
isActive = true;
Monitor.Pulse(bufferLock);
}
bufferMonitorThread = new Thread(BufferMonitor);
bufferMonitorThread.IsBackground = true;
bufferMonitorThread.Start();
}
}
/// <summary>
/// Initializes a new instance of the WaveOut class, based on an available Device Id.
/// </summary>
/// <param name="deviceId">The device identifier to obtain.</param>
/// <exception cref="ArgumentOutOfRangeException">If <paramref name="deviceId"/> is not in the valid range.</exception>
public WaveOut(int deviceId)
{
if ((deviceId >= DeviceCount || deviceId < 0) && deviceId != WaveOutMapperDeviceId)
{
throw new ArgumentOutOfRangeException("deviceId", "The Device ID specified was not within the valid range.");
}
this.callback = new WaveOutProc(this.InternalCallback);
this.deviceId = deviceId;
}
static extern MMSYSERROR waveOutOpen(ref IntPtr handle, int uDeviceID, ref WAVEFORMATEX pwfx, WaveOutProc dwCallback, IntPtr dwCallbackInstance, WaveOpenFlags dwFlags);
static extern int waveOutOpen(out IntPtr waveIn, uint deviceID, ref WAVEFORMATEX format, WaveOutProc callback, IntPtr callbackInstance, int flags);
private static extern WAVEERROR waveOutOpen(out IntPtr hWaveOut, UInt32 uDeviceID, ref WAVEFORMATEX wfx, WaveOutProc dwCallback, UIntPtr dwInstance, WaveOutFlags fdwOpen);
internal static partial MMSYSERR waveOutOpen(ref IntPtr phwo, int uDeviceID, byte[] pwfx, WaveOutProc dwCallback, IntPtr dwInstance, uint fdwOpen);
public static extern RESULT waveOutOpen(out IntPtr hWaveOut, IntPtr uDeviceID, ref WAVEFORMATEX lpFormat, WaveOutProc dwCallback, IntPtr dwInstance, OPEN_FLAGS dwFlags);
public static extern uint waveOutOpen(ref IntPtr hWaveOut, uint uDeviceId, ref WAVEFORMATEX lpFormat,
WaveOutProc dwCallback, IntPtr dwInstance, uint dwFlags);
