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 EDataFlow GetDataFlow()
{
EDataFlow flow = EDataFlow.All;
try
{
var guid = new Guid(GuidValue.External.IMMEndpoint);
Marshal.QueryInterface(Marshal.GetIUnknownForObject(this.device), ref guid, out IntPtr endpointPtr);
IMMEndpoint endpoint = (IMMEndpoint)Marshal.GetObjectForIUnknown(endpointPtr);
endpoint.GetDataFlow(out flow);
}
catch {}
return(flow);
}
public static void listDevices(int dataFlow, string setMute, System.Collections.Generic.List <DEVICE_SUMMARY> defaultDevices)
{
var enumerator = new MMDeviceEnumeratorComObject() as IMMDeviceEnumerator;
uint deviceCount = 0, i = 0;
System.Console.Write("EnumAudioEndpoints: ...");
IMMDeviceCollection deviceCollection; enumerator.EnumAudioEndpoints(dataFlow, 1, out deviceCollection);
// EDataFlow: 0=eRender;1=eCapture;2=eAll | 1=DEVICE_STATE_ACTIVE
deviceCollection.GetCount(out deviceCount); System.Console.WriteLine(" deviceCount=" + deviceCount);//return;
for (i = 0; i < deviceCount; i++)
{
System.Console.Write("\n" + i + ":");
IMMDevice dev = null; deviceCollection.Item(i, out dev);
if (!Object.ReferenceEquals(null, dev))
{
IMMEndpoint ep = (IMMEndpoint)dev; // Marshal.QueryInterface shouldn't be necessary, just use cast instead [ http://stackoverflow.com/questions/5077172/how-do-i-use-marshal-queryinterface ]
int dataFlow1; ep.GetDataFlow(out dataFlow1);
System.Console.WriteLine(" GetDataFlow: [" + dataFlow1 + "] " + ((dataFlow1 == 0)?"Playback":"Recording"));
DEVICE_SUMMARY defaultDevice = new DEVICE_SUMMARY();
foreach (var dev0 in defaultDevices)
{
if (dev0.dataFlow == dataFlow1)
{
defaultDevice = dev0;
break;
}
}
listDeviceProperties(dev, defaultDevice);
if (setMute == "0" || setMute == "1")
{
IAudioEndpointVolume epv = null;
var epvid = typeof(IAudioEndpointVolume).GUID;
Marshal.ThrowExceptionForHR(dev.Activate(ref epvid, /*CLSCTX_ALL*/ 23, 0, out epv));
epv.SetMute((setMute == "0"), System.Guid.Empty); System.Console.WriteLine(" SetMute: " + (setMute == "0"));
}
}
Marshal.ReleaseComObject(dev);
}
Marshal.ReleaseComObject(deviceCollection);
System.Console.WriteLine();
}
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;
}
}
