public static extern MmResult waveOutOpenWindow(out IntPtr hWaveOut, IntPtr uDeviceID, WaveFormat lpFormat, IntPtr callbackWindowHandle, IntPtr dwInstance, WaveInOutOpenFlags dwFlags);
public static extern MmResult waveInOpenWindow(out IntPtr hWaveIn, IntPtr uDeviceID, WaveFormatProvider lpFormat, IntPtr callbackWindowHandle, IntPtr dwInstance, WaveInOutOpenFlags dwFlags);
public static extern MmResult waveOutOpen(out IntPtr hWaveOut, IntPtr uDeviceID, WaveFormat lpFormat, WaveCallback dwCallback, IntPtr dwInstance, WaveInOutOpenFlags dwFlags);
public static extern MmResult waveInOpenWithWindow(out IntPtr hWaveIn, IntPtr device, WaveFormat pwfx, IntPtr window, IntPtr dwInstance, WaveInOutOpenFlags fdwOpen);
public static extern MmResult waveInOpen(out IntPtr hWaveIn, IntPtr uDeviceID, WaveFormatProvider lpFormat, WaveCallback dwCallback, IntPtr dwInstance, WaveInOutOpenFlags dwFlags);
public static extern MmResult waveOutOpenWithWindow(out IntPtr hWaveOut, IntPtr device, WaveFormat lpFormat, IntPtr window, IntPtr dwInstance, WaveInOutOpenFlags dwFlags);
public static extern MmResult waveInOpen(out IntPtr hWaveIn, IntPtr device, WaveFormat pwfx, WaveCallback dwCallback, IntPtr dwInstance, WaveInOutOpenFlags fdwOpen);
/// <summary>
/// Opens the audio device.
/// </summary>
/// <param name="deviceId">The device identifier.</param>
/// <param name="format">The format.</param>
/// <param name="callbackHandle">The callback window handle.</param>
/// <param name="instanceHandle">The instance handle.</param>
/// <param name="openFlags">The open flags.</param>
/// <returns>The audio device handle.</returns>
/// <exception cref="TimeoutException">Occurs when the interop lock cannot be acquired.</exception>
/// <exception cref="LegacyAudioException">Occurs when the MME interop call fails.</exception>
public static IntPtr OpenAudioDevice(int deviceId, WaveFormat format, SafeWaitHandle callbackHandle, IntPtr instanceHandle, WaveInOutOpenFlags openFlags)
{
if (deviceId < -1)
{
throw new ArgumentException($"Invalid Device ID {deviceId}", nameof(deviceId));
}
if (!TryEnterDeviceOperation())
{
return(IntPtr.Zero);
}
try
{
LegacyAudioException.Try(
NativeMethods.OpenDeviceOnWindow(out var hWaveOut, deviceId, format, callbackHandle, instanceHandle, openFlags),
nameof(NativeMethods.OpenDeviceOnWindow));
return(hWaveOut);
}
finally { Monitor.Exit(SyncLock); }
}
public static extern MmResult waveOutOpen(out IntPtr hWaveOut, IntPtr device, WaveFormat lpFormat, WaveCallback dwCallback, IntPtr dwInstance, WaveInOutOpenFlags dwFlags);
public static extern MmResult waveInOpenWithWindow(out IntPtr hWaveIn, IntPtr device, WaveFormat pwfx, IntPtr window, IntPtr dwInstance, WaveInOutOpenFlags fdwOpen);
public static extern MmResult waveInOpen(out IntPtr hWaveIn, IntPtr device, WaveFormat pwfx, WaveCallback dwCallback, IntPtr dwInstance, WaveInOutOpenFlags fdwOpen);
public static extern MmResult waveOutOpenWithWindow(out IntPtr hWaveOut, IntPtr device, WaveFormat lpFormat, IntPtr window, IntPtr dwInstance, WaveInOutOpenFlags dwFlags);
public static extern MultimediaResult waveOutOpenWindow(out IntPtr hWaveOut,
IntPtr uDeviceID,
WaveFormat lpFormat,
IntPtr callbackWindowHandle,
IntPtr dwInstance,
WaveInOutOpenFlags dwFlags);
/// <summary>
/// Opens the audio device.
/// </summary>
/// <param name="deviceId">The device identifier.</param>
/// <param name="format">The format.</param>
/// <param name="callbackWindowHandle">The callback window handle.</param>
/// <param name="instanceHandle">The instance handle.</param>
/// <param name="openFlags">The open flags.</param>
/// <returns>The audio device handle</returns>
/// <exception cref="TimeoutException">Occurs when the interop lock cannot be acquired.</exception>
/// <exception cref="MmException">Occurs when the MME interop call fails</exception>
public static IntPtr OpenAudioDevice(int deviceId, WaveFormat format, IntPtr callbackWindowHandle, IntPtr instanceHandle, WaveInOutOpenFlags openFlags)
{
if (deviceId < -1)
{
deviceId = -1;
}
var acquired = false;
Monitor.TryEnter(SyncLock, LockTimeout, ref acquired);
if (acquired == false)
{
throw new TimeoutException(TimeoutErrorMessage);
}
try
{
MmException.Try(
NativeMethods.waveOutOpenWindow(out IntPtr hWaveOut, deviceId, format, callbackWindowHandle, instanceHandle, openFlags),
nameof(NativeMethods.waveOutOpenWindow));
return(hWaveOut);
}
catch { throw; }
finally { Monitor.Exit(SyncLock); }
}
