/// <summary>
/// Creates a new Wave input stream
/// </summary>
/// <param name="deviceNumber">The device to open - 0 is default</param>
/// <param name="desiredFormat">The PCM format to record in</param>
/// <param name="callbackWindow">If this parameter is non-null, the Wave In Messages
/// will be sent to the message loop of the supplied control. This is considered a
/// safer way to use the waveIn functionality</param>
public WaveInStream(int deviceNumber, WaveFormat desiredFormat, System.Windows.Forms.Control callbackWindow)
{
this.waveFormat = desiredFormat;
callback = new WaveInterop.WaveCallback(Callback);
if (callbackWindow == null)
{
MmException.Try(WaveInterop.waveInOpen(out waveInHandle, deviceNumber, desiredFormat, callback, 0, WaveInterop.CallbackFunction), "waveInOpen");
}
else
{
waveInWindow = new WaveWindowNative(callback);
MmException.Try(WaveInterop.waveInOpenWindow(out waveInHandle, deviceNumber, desiredFormat, callbackWindow.Handle, 0, WaveInterop.CallbackWindow), "waveInOpen");
waveInWindow.AssignHandle(callbackWindow.Handle);
}
// Default to three buffers of 100ms each
int bufferSize = desiredFormat.AverageBytesPerSecond / 10;
numBuffers = 3;
buffers = new WaveInBuffer[numBuffers];
for (int n = 0; n < numBuffers; n++)
{
buffers[n] = new WaveInBuffer(waveInHandle, bufferSize);
}
}
// Token: 0x060009E7 RID: 2535 RVA: 0x0001C880 File Offset: 0x0001AA80
internal MmResult WaveInOpen(out IntPtr waveInHandle, int deviceNumber, WaveFormat waveFormat, WaveInterop.WaveCallback callback)
{
MmResult result;
if (this.Strategy == WaveCallbackStrategy.FunctionCallback)
{
result = WaveInterop.waveInOpen(out waveInHandle, (IntPtr)deviceNumber, waveFormat, callback, IntPtr.Zero, WaveInterop.WaveInOutOpenFlags.CallbackFunction);
}
else
{
result = WaveInterop.waveInOpenWindow(out waveInHandle, (IntPtr)deviceNumber, waveFormat, this.Handle, IntPtr.Zero, WaveInterop.WaveInOutOpenFlags.CallbackWindow);
}
return(result);
}