public AEDev(bool resetDevice = false)
{
IMMDevice _Device = null;
if (resetDevice)
{
_devId = "";
}
_realEnumerator = new _AEDeviceEnumerator() as IMMDeviceEnumerator;
try
{
if (String.IsNullOrEmpty(_devId))
{
Marshal.ThrowExceptionForHR(_realEnumerator.GetDefaultAudioEndpoint(0, 1, out _Device));
Marshal.ThrowExceptionForHR(_Device.GetId(out _devId));
}
else
{
Marshal.ThrowExceptionForHR(_realEnumerator.GetDevice(_devId, out _Device));
}
devstatus state;
Marshal.ThrowExceptionForHR(_Device.GetState(out state));
if (state != devstatus.DEVICE_STATE_ACTIVE)
{
throw new ApplicationException($"audio device is not active ({state.ToString()})");
}
_RealDevice = _Device;
object result;
Marshal.ThrowExceptionForHR(_RealDevice.Activate(ref IID_IAudioEndpointVolume, CTX.ALL, IntPtr.Zero, out result));
_AudioEndPointVolume = result as IAudioEndpointVolume;
_CallBack = new AudioEndpointVolumeCallback(this);
Marshal.ThrowExceptionForHR(_AudioEndPointVolume.RegisterControlChangeNotify(_CallBack));
}
catch (Exception)
{
// Catch if no device is found or changed device
try
{
Marshal.ThrowExceptionForHR(_realEnumerator.GetDefaultAudioEndpoint(0, 1, out _Device));
Marshal.ThrowExceptionForHR(_Device.GetId(out _devId));
devstatus state;
Marshal.ThrowExceptionForHR(_Device.GetState(out state));
if (state != devstatus.DEVICE_STATE_ACTIVE)
{
throw new ApplicationException($"audio device is not active ({state.ToString()})");
}
_RealDevice = _Device;
object result;
Marshal.ThrowExceptionForHR(_RealDevice.Activate(ref IID_IAudioEndpointVolume, CTX.ALL, IntPtr.Zero, out result));
_AudioEndPointVolume = result as IAudioEndpointVolume;
_CallBack = new AudioEndpointVolumeCallback(this);
Marshal.ThrowExceptionForHR(_AudioEndPointVolume.RegisterControlChangeNotify(_CallBack));
}
catch (Exception)
{
// Catch if no device is found
}
}
}
internal MMDevice(IMMDevice realDevice)
{
_RealDevice = realDevice;
GetPropertyInformation();
Marshal.ThrowExceptionForHR(_RealDevice.GetId(out _id));
IMMEndpoint ep = _RealDevice as IMMEndpoint;
Marshal.ThrowExceptionForHR(ep.GetDataFlow(out _dataFlow));
Marshal.ThrowExceptionForHR(_RealDevice.GetState(out _state));
if (_PropertyStore.Contains(PKEY.PKEY_DeviceInterface_FriendlyName))
{
_friendlyName = (string)_PropertyStore[PKEY.PKEY_DeviceInterface_FriendlyName].Value;
}
if (_PropertyStore.Contains(PKEY.PKEY_DeviceInterface_Icon))
{
var iconPath = (string)_PropertyStore[PKEY.PKEY_DeviceInterface_Icon].Value;
_icon = DeviceIconHelper.GetIconByPath(iconPath);
}
if (_PropertyStore.Contains(PKEY.PKEY_DeviceInterface_RealName))
{
var nameValue = _PropertyStore[PKEY.PKEY_DeviceInterface_RealName].Value;
if (nameValue is string s)
{
_realName = s;
}
}
}
public AudioDevice(IAudioDeviceManager deviceManager, IMMDevice device, Dispatcher foregroundDispatcher)
{
_device = device;
_deviceManager = new WeakReference <IAudioDeviceManager>(deviceManager);
_dispatcher = foregroundDispatcher;
_id = device.GetId();
Trace.WriteLine($"AudioDevice Create {_id}");
if (_device.GetState() == DeviceState.ACTIVE)
{
_deviceVolume = device.Activate <IAudioEndpointVolume>();
_deviceVolume.RegisterControlChangeNotify(this);
_deviceVolume.GetMasterVolumeLevelScalar(out _volume);
_isMuted = _deviceVolume.GetMute() != 0;
_isRegistered = true;
_meter = device.Activate <IAudioMeterInformation>();
_channels = new AudioDeviceChannelCollection(_deviceVolume, _dispatcher);
_sessions = new AudioDeviceSessionCollection(this, _device, _dispatcher);
_sessionFilter = new FilteredCollectionChain <IAudioDeviceSession>(_sessions.Sessions, _dispatcher);
Groups = _sessionFilter.Items;
}
else
{
Groups = new ObservableCollection <IAudioDeviceSession>();
}
ReadProperties();
}
public AEDev()
{
IMMDevice _Device = null;
if (String.IsNullOrEmpty(_devId))
{
Marshal.ThrowExceptionForHR(_realEnumerator.GetDefaultAudioEndpoint(0, 1, out _Device));
Marshal.ThrowExceptionForHR(_Device.GetId(out _devId));
}
else
{
Marshal.ThrowExceptionForHR(_realEnumerator.GetDevice(_devId, out _Device));
}
devstatus state;
Marshal.ThrowExceptionForHR(_Device.GetState(out state));
if (state != devstatus.DEVICE_STATE_ACTIVE)
{
throw new ApplicationException(String.Format("audio device is not active ({0})", state.ToString()));
}
_RealDevice = _Device;
object result;
Marshal.ThrowExceptionForHR(_RealDevice.Activate(ref IID_IAudioEndpointVolume, CTX.ALL, IntPtr.Zero, out result));
_AudioEndPointVolume = result as IAudioEndpointVolume;
_CallBack = new AudioEndpointVolumeCallback(this);
Marshal.ThrowExceptionForHR(_AudioEndPointVolume.RegisterControlChangeNotify(_CallBack));
}
private EDeviceState GetState()
{
EDeviceState result;
Marshal.ThrowExceptionForHR(_RealDevice.GetState(out result));
return(result);
}
private static bool DeviceIsValid(IMMDevice device)
{
try
{
string id;
EDeviceState state;
device.GetId(out id);
device.GetState(out state);
return(true);
}
catch
{
return(false);
}
}
internal MMDevice(IMMDevice realDevice)
{
_RealDevice = realDevice;
GetPropertyInformation();
Marshal.ThrowExceptionForHR(_RealDevice.GetId(out _id));
IMMEndpoint ep = _RealDevice as IMMEndpoint;
Marshal.ThrowExceptionForHR(ep.GetDataFlow(out _dataFlow));
Marshal.ThrowExceptionForHR(_RealDevice.GetState(out _state));
if (_PropertyStore.Contains(PKEY.PKEY_DeviceInterface_FriendlyName))
_friendlyName = (string)_PropertyStore[PKEY.PKEY_DeviceInterface_FriendlyName].Value;
}
private static AudioDevice CreateDevice(IMMDevice dev)
{
if (dev == null)
{
return(null);
}
string id;
dev.GetId(out id);
DEVICE_STATE state;
dev.GetState(out state);
Dictionary <string, object> properties = new Dictionary <string, object>();
IPropertyStore store;
dev.OpenPropertyStore(STGM.STGM_READ, out store);
if (store != null)
{
int propCount;
store.GetCount(out propCount);
for (int j = 0; j < propCount; j++)
{
PROPERTYKEY pk;
if (store.GetAt(j, out pk) == 0)
{
PROPVARIANT value = new PROPVARIANT();
int hr = store.GetValue(ref pk, ref value);
object v = value.GetValue();
try
{
if (value.vt != VARTYPE.VT_BLOB) // for some reason, this fails?
{
PropVariantClear(ref value);
}
}
catch
{
}
string name = pk.ToString();
properties[name] = v;
}
}
}
return(new AudioDevice(id, (AudioDeviceState)state, properties));
}
private void LoadProperties(IMMDevice device)
{
ComThread.Assert();
//Load values
Marshal.ThrowExceptionForHR(device.GetId(out _realId));
Marshal.ThrowExceptionForHR(device.GetState(out _state));
// ReSharper disable once SuspiciousTypeConversion.Global
var ep = device as IMMEndpoint;
if (ep != null)
{
ep.GetDataFlow(out _dataFlow);
}
GetPropertyInformation(device);
}
internal MMDevice(IMMDevice realDevice)
{
_RealDevice = realDevice;
GetPropertyInformation();
Marshal.ThrowExceptionForHR(_RealDevice.GetId(out _id));
IMMEndpoint ep = _RealDevice as IMMEndpoint;
Marshal.ThrowExceptionForHR(ep.GetDataFlow(out _dataFlow));
Marshal.ThrowExceptionForHR(_RealDevice.GetState(out _state));
if (_PropertyStore.Contains(PKEY.PKEY_DeviceInterface_FriendlyName))
{
_friendlyName = (string)_PropertyStore[PKEY.PKEY_DeviceInterface_FriendlyName].Value;
}
}
private static AudioDevice CreateDevice(IMMDevice dev)
{
if (dev == null)
return null;
string id;
dev.GetId(out id);
DEVICE_STATE state;
dev.GetState(out state);
Dictionary<string, object> properties = new Dictionary<string, object>();
IPropertyStore store;
dev.OpenPropertyStore(STGM.STGM_READ, out store);
if (store != null)
{
int propCount;
store.GetCount(out propCount);
for (int j = 0; j < propCount; j++)
{
PROPERTYKEY pk;
if (store.GetAt(j, out pk) == 0)
{
PROPVARIANT value = new PROPVARIANT();
int hr = store.GetValue(ref pk, ref value);
object v = value.GetValue();
try
{
if (value.vt != VARTYPE.VT_BLOB) // for some reason, this fails?
{
PropVariantClear(ref value);
}
}
catch
{
}
string name = pk.ToString();
properties[name] = v;
}
}
}
return new AudioDevice(id, (AudioDeviceState)state, properties);
}
private void LoadProperties(IMMDevice device)
{
ComThread.Assert();
//Load values
Marshal.ThrowExceptionForHR(device.GetId(out _realId));
Marshal.ThrowExceptionForHR(device.GetState(out _state));
// ReSharper disable once SuspiciousTypeConversion.Global
var ep = device as IMMEndpoint;
if (ep != null)
ep.GetDataFlow(out _dataFlow);
GetPropertyInformation(device);
}
