get the app output device

src/FocusVolumeControl/AudioHelpers/AppxPackage.cs

@@ -109,6 +109,13 @@ public sealed class AppxPackage
 							var properties = reader.GetProperties();
 
 							properties.GetStringValue("DisplayName", out var displayName);
+
+							if(displayName.StartsWith("ms-resource:"))
+							{
+								var packageFullName = Marshal.PtrToStringUni(info.packageFullName);
+								displayName = LoadResourceString(fullName, displayName);
+
+							}
 							package.DisplayName = displayName;
 
 							properties.GetStringValue("Logo", out var logo);
@@ -158,6 +165,40 @@ public sealed class AppxPackage
 				ClosePackageInfo(infoRef);
 			}
 		}
+
+	}
+
+	static string LoadResourceString(string packageFullName, string resource)
+	{
+		if (packageFullName == null)
+			throw new ArgumentNullException("packageFullName");
+
+		if (string.IsNullOrWhiteSpace(resource))
+			return null;
+
+		const string resourceScheme = "ms-resource:";
+		if (!resource.StartsWith(resourceScheme))
+			return null;
+
+		string part = resource.Substring(resourceScheme.Length);
+		string url;
+
+		if (part.StartsWith("/"))
+		{
+			url = resourceScheme + "//" + part;
+		}
+		else
+		{
+			url = resourceScheme + "///resources/" + part;
+		}
+
+		string source = string.Format("@{{{0}? {1}}}", packageFullName, url);
+		var sb = new StringBuilder(1024);
+		int i = SHLoadIndirectString(source, sb, sb.Capacity, IntPtr.Zero);
+		if (i != 0)
+			return null;
+
+		return sb.ToString();
 	}
 
 

src/FocusVolumeControl/AudioHelpers/AudioHelper.cs

@@ -1,12 +1,9 @@
-using BarRaider.SdTools;
+using FocusVolumeControl.AudioSessions;
-using FocusVolumeControl.AudioSessions;
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
-using System.IO;
 using System.Linq;
 using System.Runtime.InteropServices;
-using System.Text;
 
 namespace FocusVolumeControl.AudioHelpers;
 
@@ -16,6 +13,7 @@ public class AudioHelper
 
 	static object _lock = new object();
 	int[] _currentProcesses;
+	int _retryFallbackCount = 0;
 
 	public IAudioSession Current { get; private set; }
 
@@ -27,8 +25,21 @@ public class AudioHelper
 		}
 	}
 
+	private Process GetProcessById(int id)
+	{
+		try
+		{
+			return Process.GetProcessById(id);
+		}
+		catch
+		{
+			return null;
+		}
+	}
+
 	public IAudioSession FindSession(List<Process> processes)
 	{
+		//var blah = new AudioPolicyConfigFactoryImplFor21H2();
 		var results = new ActiveAudioSessionWrapper();
 		Process bestProcessMatch = null;
 
@@ -41,9 +52,10 @@ public class AudioHelper
 			deviceCollection.Item(d, out var device);
 
 			Guid iid = typeof(IAudioSessionManager2).GUID;
-			device.Activate(ref iid, 0, IntPtr.Zero, out var m);
+			device.Activate(ref iid, CLSCTX.ALL, IntPtr.Zero, out var m);
 			var manager = (IAudioSessionManager2)m;
 
+			device.GetId(out var currentDeviceId);
 
 			manager.GetSessionEnumerator(out var sessionEnumerator);
 
@@ -55,7 +67,22 @@ public class AudioHelper
 				sessionEnumerator.GetSession(i, out var session);
 
 				session.GetProcessId(out var sessionProcessId);
-				var audioProcess = Process.GetProcessById(sessionProcessId);
+				var audioProcess = GetProcessById(sessionProcessId);
+
+				if(audioProcess == null)
+				{
+					continue;
+				}
+
+				/*
+				blah.GetPersistedDefaultAudioEndpoint(sessionProcessId, DataFlow.Render, Role.Multimedia, out var persistedDeviceId);
+				persistedDeviceId = UnpackDeviceId(persistedDeviceId);
+				if(!string.IsNullOrEmpty(persistedDeviceId) && persistedDeviceId != currentDeviceId)
+				{
+					continue;
+
+				}
+				*/
 
 				var index = processes.FindIndex(x => x.Id == sessionProcessId || x.ProcessName == audioProcess?.ProcessName);
 
@@ -68,7 +95,14 @@ public class AudioHelper
 					{
 						bestProcessMatch = audioProcess;
 						currentIndex = index;
+
+						if(string.IsNullOrEmpty(results.DisplayName))
+						{
+							session.GetDisplayName(out var displayName);
+							results.DisplayName = displayName;
 						}
+					}
+
 
 					//some apps like discord have multiple volume processes.
 					//and some apps will be on multiple devices
@@ -92,12 +126,20 @@ public class AudioHelper
 		lock (_lock)
 		{
 			var processes = GetPossibleProcesses();
-			var processIds = processes.Select(x => x.Id).ToArray();
+			var processIds = processes?.Select(x => x.Id).ToArray();
 
-			if (_currentProcesses == null || !_currentProcesses.SequenceEqual(processIds))
+			//_currentProcesses null - first time getting sessions
+			//_currentProcesses not equal to processIds - changed the active process
+			//_retryFallbackCount - some processes like chrome or minecraft will start their audio process when they first try to do some sound stuff
+			if (_currentProcesses == null || !_currentProcesses.SequenceEqual(processIds) || _retryFallbackCount == 5)
 			{
+				_retryFallbackCount = 0;
 				Current = FindSession(processes);
 			}
+			else if(Current is SystemSoundsAudioSession || Current is SystemVolumeAudioSession)
+			{
+				_retryFallbackCount++;
+			}
 
 			if (Current == null)
 			{
@@ -138,7 +180,7 @@ public class AudioHelper
 
 		if (handle == IntPtr.Zero)
 		{
-			return null;
+			return new List<Process>();
 		}
 
 		var ids = Native.GetProcessesOfChildWindows(handle);
@@ -150,6 +192,11 @@ public class AudioHelper
 						   .Select(x => Process.GetProcessById(x))
 						   .ToList();
 
+		if(processes.FirstOrDefault()?.ProcessName == "explorer")
+		{
+			return new List<Process>();
+		}
+
 		try
 		{
 			//note. in instances where you launch a game from steam. this ends up mapping the process to both steam and to the game. which is unfortunate
@@ -189,7 +236,7 @@ public class AudioHelper
 			deviceCollection.Item(d, out var device);
 
 			Guid iid = typeof(IAudioSessionManager2).GUID;
-			device.Activate(ref iid, 0, IntPtr.Zero, out var m);
+			device.Activate(ref iid, CLSCTX.ALL, IntPtr.Zero, out var m);
 			var manager = (IAudioSessionManager2)m;
 
 
@@ -220,7 +267,7 @@ public class AudioHelper
 
 
 			Guid iid = typeof(IAudioSessionManager2).GUID;
-			device.Activate(ref iid, 0, IntPtr.Zero, out var m);
+			device.Activate(ref iid, CLSCTX.ALL, IntPtr.Zero, out var m);
 			var manager = (IAudioSessionManager2)m;
 
 
@@ -246,10 +293,130 @@ public class AudioHelper
 		deviceEnumerator.GetDefaultAudioEndpoint(DataFlow.Render, Role.Multimedia, out var device);
 
 		Guid iid = typeof(IAudioEndpointVolume).GUID;
-		device.Activate(ref iid, 0, IntPtr.Zero, out var o);
+		device.Activate(ref iid, CLSCTX.ALL, IntPtr.Zero, out var o);
 		var endpointVolume = (IAudioEndpointVolume)o;
 
 		return new SystemVolumeAudioSession(endpointVolume);
 	}
 
+
+
+
+	class AudioPolicyConfigFactoryImplFor21H2
+	{
+		private readonly IAudioPolicyConfigFactoryVariantFor21H2 _factory;
+
+		internal AudioPolicyConfigFactoryImplFor21H2()
+		{
+			var iid = typeof(IAudioPolicyConfigFactoryVariantFor21H2).GUID;
+			Combase.RoGetActivationFactory("Windows.Media.Internal.AudioPolicyConfig", ref iid, out object factory);
+			_factory = (IAudioPolicyConfigFactoryVariantFor21H2)factory;
+		}
+
+		public uint ClearAllPersistedApplicationDefaultEndpoints()
+		{
+			return _factory.ClearAllPersistedApplicationDefaultEndpoints();
+		}
+
+		public uint GetPersistedDefaultAudioEndpoint(int processId, DataFlow flow, Role role, out string deviceId)
+		{
+			return _factory.GetPersistedDefaultAudioEndpoint(processId, flow, role, out deviceId);
+		}
+
+		public uint SetPersistedDefaultAudioEndpoint(int processId, DataFlow flow, Role role, IntPtr deviceId)
+		{
+			return _factory.SetPersistedDefaultAudioEndpoint(processId, flow, role, deviceId);
+		}
+	}
+
+
+	[Guid("ab3d4648-e242-459f-b02f-541c70306324")]
+	[InterfaceType(ComInterfaceType.InterfaceIsIInspectable)]
+	public interface IAudioPolicyConfigFactoryVariantFor21H2
+	{
+		int __incomplete__add_CtxVolumeChange();
+		int __incomplete__remove_CtxVolumeChanged();
+		int __incomplete__add_RingerVibrateStateChanged();
+		int __incomplete__remove_RingerVibrateStateChange();
+		int __incomplete__SetVolumeGroupGainForId();
+		int __incomplete__GetVolumeGroupGainForId();
+		int __incomplete__GetActiveVolumeGroupForEndpointId();
+		int __incomplete__GetVolumeGroupsForEndpoint();
+		int __incomplete__GetCurrentVolumeContext();
+		int __incomplete__SetVolumeGroupMuteForId();
+		int __incomplete__GetVolumeGroupMuteForId();
+		int __incomplete__SetRingerVibrateState();
+		int __incomplete__GetRingerVibrateState();
+		int __incomplete__SetPreferredChatApplication();
+		int __incomplete__ResetPreferredChatApplication();
+		int __incomplete__GetPreferredChatApplication();
+		int __incomplete__GetCurrentChatApplications();
+		int __incomplete__add_ChatContextChanged();
+		int __incomplete__remove_ChatContextChanged();
+		[PreserveSig]
+		uint SetPersistedDefaultAudioEndpoint(int processId, DataFlow flow, Role role, IntPtr deviceId);
+		[PreserveSig]
+		uint GetPersistedDefaultAudioEndpoint(int processId, DataFlow flow, Role role, [Out, MarshalAs(UnmanagedType.HString)] out string deviceId);
+		[PreserveSig]
+		uint ClearAllPersistedApplicationDefaultEndpoints();
+	}
+
+	[Guid("2a59116d-6c4f-45e0-a74f-707e3fef9258")]
+	[InterfaceType(ComInterfaceType.InterfaceIsIInspectable)]
+	public interface IAudioPolicyConfigFactoryVariantForDownlevel
+	{
+		int __incomplete__add_CtxVolumeChange();
+		int __incomplete__remove_CtxVolumeChanged();
+		int __incomplete__add_RingerVibrateStateChanged();
+		int __incomplete__remove_RingerVibrateStateChange();
+		int __incomplete__SetVolumeGroupGainForId();
+		int __incomplete__GetVolumeGroupGainForId();
+		int __incomplete__GetActiveVolumeGroupForEndpointId();
+		int __incomplete__GetVolumeGroupsForEndpoint();
+		int __incomplete__GetCurrentVolumeContext();
+		int __incomplete__SetVolumeGroupMuteForId();
+		int __incomplete__GetVolumeGroupMuteForId();
+		int __incomplete__SetRingerVibrateState();
+		int __incomplete__GetRingerVibrateState();
+		int __incomplete__SetPreferredChatApplication();
+		int __incomplete__ResetPreferredChatApplication();
+		int __incomplete__GetPreferredChatApplication();
+		int __incomplete__GetCurrentChatApplications();
+		int __incomplete__add_ChatContextChanged();
+		int __incomplete__remove_ChatContextChanged();
+		[PreserveSig]
+		uint SetPersistedDefaultAudioEndpoint(int processId, DataFlow flow, Role role, IntPtr deviceId);
+		[PreserveSig]
+		uint GetPersistedDefaultAudioEndpoint(int processId, DataFlow flow, Role role, [Out, MarshalAs(UnmanagedType.HString)] out string deviceId);
+		[PreserveSig]
+		uint ClearAllPersistedApplicationDefaultEndpoints();
+	}
+
+	static class Combase
+	{
+		[DllImport("combase.dll", PreserveSig = false)]
+		public static extern void RoGetActivationFactory(
+			[MarshalAs(UnmanagedType.HString)] string activatableClassId,
+			[In] ref Guid iid,
+			[Out, MarshalAs(UnmanagedType.IInspectable)] out Object factory);
+
+		[DllImport("combase.dll", PreserveSig = false)]
+		public static extern void WindowsCreateString(
+			[MarshalAs(UnmanagedType.LPWStr)] string src,
+			[In] uint length,
+			[Out] out IntPtr hstring);
+	}
+
+	private const string DEVINTERFACE_AUDIO_RENDER = "#{e6327cad-dcec-4949-ae8a-991e976a79d2}";
+	private const string DEVINTERFACE_AUDIO_CAPTURE = "#{2eef81be-33fa-4800-9670-1cd474972c3f}";
+	private const string MMDEVAPI_TOKEN = @"\\?\SWD#MMDEVAPI#";
+	private string UnpackDeviceId(string deviceId)
+	{
+		if (deviceId.StartsWith(MMDEVAPI_TOKEN)) deviceId = deviceId.Remove(0, MMDEVAPI_TOKEN.Length);
+		if (deviceId.EndsWith(DEVINTERFACE_AUDIO_RENDER)) deviceId = deviceId.Remove(deviceId.Length - DEVINTERFACE_AUDIO_RENDER.Length);
+		if (deviceId.EndsWith(DEVINTERFACE_AUDIO_CAPTURE)) deviceId = deviceId.Remove(deviceId.Length - DEVINTERFACE_AUDIO_CAPTURE.Length);
+		return deviceId;
+	}
+
+
 }

src/FocusVolumeControl/AudioHelpers/NameAndIconHelper.cs

@@ -1,7 +1,10 @@
 using BarRaider.SdTools;
+using FocusVolumeControl.AudioSession;
 using FocusVolumeControl.AudioSessions;
+using FocusVolumeControl.UI;
 using System;
 using System.Diagnostics;
+using System.Drawing;
 using System.IO;
 using System.Runtime.InteropServices;
 using System.Text;
@@ -10,12 +13,12 @@ namespace FocusVolumeControl.AudioHelpers;
 
 public class NameAndIconHelper
 {
-	public (string name, string icon) GetProcessInfo(Process process)
+	public string GetProcessInfo(Process process)
 	{
 		//i know this is dumb, but its only used by the sound browser, not real prod code
 		var blah = new ActiveAudioSessionWrapper();
 		SetProcessInfo(process, blah);
-		return (blah.DisplayName, blah.IconPath ?? blah.ExecutablePath);
+		return blah.DisplayName;
 	}
 
 	public void SetProcessInfo(Process process, ActiveAudioSessionWrapper results)
@@ -26,10 +29,13 @@ public class NameAndIconHelper
 			var appx = AppxPackage.FromProcess(process);
 			if (appx == null)
 			{
-				//usingg process.MainModule.FileVersionInfo sometimes throws permission exceptions
+				//using process.MainModule.FileVersionInfo sometimes throws permission exceptions
 				//we get the file version info with a limited query flag to avoid that
 				var fileVersionInfo = GetFileVersionInfo(process);
 
+				//if the display name is already set, then it came from the display name of the audio session
+				if (string.IsNullOrEmpty(results.DisplayName))
+				{
 					results.DisplayName = process.MainWindowTitle;
 
 					if (string.IsNullOrEmpty(results.DisplayName))
@@ -40,13 +46,29 @@ public class NameAndIconHelper
 							results.DisplayName = process.ProcessName;
 						}
 					}
+				}
 
-				results.ExecutablePath = fileVersionInfo?.FileName;
+				//for java apps (minecraft), the process will just have a java icon
+				//and there's not just a file that you can get the real icon from
+				//so you have to send some messages to the apps to get the icons.
+				//but they will only be 32x32 (or smaller) so we only want to use this logic for java
+				//because these will be lower resolution than the normal way of getting icons
+				if (process.ProcessName == "javaw" || process.ProcessName == "java" || process.ProcessName == "dotnet")
+				{
+					var windowHandle = process.MainWindowHandle;
+					var lazyIcon = () => JavaIconExtractor.GetWindowBigIconWithRetry(windowHandle);
+					results.IconWrapper = new RawIcon(windowHandle.ToString(), lazyIcon);
+
+				}
+				else
+				{
+					results.IconWrapper = new NormalIcon(fileVersionInfo?.FileName);
+				}
 			}
 			else
 			{
 				results.DisplayName = appx.DisplayName;
-				results.IconPath = Path.Combine(appx.Path, appx.Logo);
+				results.IconWrapper = new AppxIcon(Path.Combine(appx.Path, appx.Logo));
 			}
 		}
 		catch { }

src/FocusVolumeControl/AudioSessions/ActiveAudioSessionWrapper.cs

@@ -4,44 +4,31 @@ using System.Linq;
 using BarRaider.SdTools;
 using System.Drawing;
 using System.Runtime.InteropServices;
+using FocusVolumeControl.UI;
+using BitFaster.Caching.Lru;
+using FocusVolumeControl.AudioSession;
 
 namespace FocusVolumeControl.AudioSessions;
 
 public sealed class ActiveAudioSessionWrapper : IAudioSession
 {
 	public string DisplayName { get; set; }
-	public string ExecutablePath { get; set; }
-	public string IconPath { get; set; }
 	private List<IAudioSessionControl2> Sessions { get; } = new List<IAudioSessionControl2>();
 	private IEnumerable<ISimpleAudioVolume> Volume => Sessions.Cast<ISimpleAudioVolume>();
 
-	string _icon;
+	public IconWrapper? IconWrapper { get; set; }
 
 	public string GetIcon()
-	{
-		if (string.IsNullOrEmpty(_icon))
 	{
 		try
 		{
-				if(!string.IsNullOrEmpty(IconPath))
+			return IconWrapper?.GetIconData() ?? IconWrapper.FallbackIconData;
-				{
-					var tmp = (Bitmap)Bitmap.FromFile(IconPath);
-					tmp.MakeTransparent();
-					_icon = Tools.ImageToBase64(tmp, true);
-				}
-				else
-				{
-					var tmp = Icon.ExtractAssociatedIcon(ExecutablePath);
-					_icon = Tools.ImageToBase64(tmp.ToBitmap(), true);
-				}
 		}
 		catch
 		{
-				_icon = "Images/encoderIcon";
+			return IconWrapper.FallbackIconData;
 		}
 	}
-		return _icon;
-	}
 
 	public bool Any()
 	{

src/FocusVolumeControl/AudioSessions/CoreAudio.cs

@@ -11,6 +11,32 @@ public class MMDeviceEnumerator
 {
 }
 
+[Flags]
+public enum CLSCTX : uint
+{
+	INPROC_SERVER = 0x1,
+	INPROC_HANDLER = 0x2,
+	LOCAL_SERVER = 0x4,
+	INPROC_SERVER16 = 0x8,
+	REMOTE_SERVER = 0x10,
+	INPROC_HANDLER16 = 0x20,
+	RESERVED1 = 0x40,
+	RESERVED2 = 0x80,
+	RESERVED3 = 0x100,
+	RESERVED4 = 0x200,
+	NO_CODE_DOWNLOAD = 0x400,
+	RESERVED5 = 0x800,
+	NO_CUSTOM_MARSHAL = 0x1000,
+	ENABLE_CODE_DOWNLOAD = 0x2000,
+	NO_FAILURE_LOG = 0x4000,
+	DISABLE_AAA = 0x8000,
+	ENABLE_AAA = 0x10000,
+	FROM_DEFAULT_CONTEXT = 0x20000,
+	INPROC = INPROC_SERVER | INPROC_HANDLER,
+	SERVER = INPROC_SERVER | LOCAL_SERVER | REMOTE_SERVER,
+	ALL = SERVER | INPROC_HANDLER
+}
+
 public enum DataFlow
 {
 	Render,
@@ -35,6 +61,13 @@ public enum DeviceState : uint
 	MaskAll = 0xFu
 }
 
+public enum AudioSessionState
+{
+	AudioSessionStateInactive = 0,
+	AudioSessionStateActive = 1,
+	AudioSessionStateExpired = 2
+}
+
 
 [Guid("0BD7A1BE-7A1A-44DB-8397-CC5392387B5E")]
 [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
@@ -62,7 +95,13 @@ public interface IMMDeviceEnumerator
 public interface IMMDevice
 {
 	[PreserveSig]
-	int Activate(ref Guid iid, int dwClsCtx, IntPtr pActivationParams, [MarshalAs(UnmanagedType.IUnknown)] out object ppInterface);
+	int Activate(ref Guid iid, CLSCTX dwClsCtx, IntPtr pActivationParams, [MarshalAs(UnmanagedType.IUnknown)] out object ppInterface);
+
+	[PreserveSig]
+	int NotImpl1();
+	[PreserveSig]
+	int GetId([Out, MarshalAs(UnmanagedType.LPWStr)] out string ppstrId);
+
 }
 
 [Guid("77AA99A0-1BD6-484F-8BC7-2C654C9A9B6F"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
@@ -104,9 +143,9 @@ public interface ISimpleAudioVolume
 [Guid("bfb7ff88-7239-4fc9-8fa2-07c950be9c6d"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
 public interface IAudioSessionControl2
 {
-	// IAudioSessionControl
+	//elgato seems to use this to determine whether the icon should be black and white
 	[PreserveSig]
-	int NotImpl0();
+	int GetState(out AudioSessionState audioSessionState);
 
 	[PreserveSig]
 	int GetDisplayName([MarshalAs(UnmanagedType.LPWStr)] out string pRetVal);
@@ -134,7 +173,7 @@ public interface IAudioSessionControl2
 
 	// IAudioSessionControl2
 	[PreserveSig]
-	int GetSessionIdentifier([MarshalAs(UnmanagedType.LPWStr)] out string pRetVal);
+	uint GetSessionIdentifier([MarshalAs(UnmanagedType.LPWStr)] out string pRetVal);
 
 	[PreserveSig]
 	int GetSessionInstanceIdentifier([MarshalAs(UnmanagedType.LPWStr)] out string pRetVal);

src/FocusVolumeControl/AudioSessions/IconWrapper.cs

@@ -0,0 +1,103 @@
+using BarRaider.SdTools;
+using BitFaster.Caching.Lru;
+using FocusVolumeControl.UI;
+using System;
+using System.Drawing;
+
+namespace FocusVolumeControl.AudioSession
+{
+	public abstract class IconWrapper
+	{
+		protected static ConcurrentLru<string, string> _iconCache = new ConcurrentLru<string, string>(10);
+
+		public abstract string GetIconData();
+
+		internal const string FallbackIconData = "Images/encoderIcon";
+	}
+
+	internal class AppxIcon : IconWrapper
+	{
+		private readonly string _iconPath;
+
+		public AppxIcon(string iconPath)
+		{
+			_iconPath = iconPath;
+		}
+
+		public override string GetIconData()
+		{
+			if(string.IsNullOrEmpty(_iconPath))
+			{
+				return FallbackIconData;
+			}
+
+			return _iconCache.GetOrAdd(_iconPath, (key) =>
+			{
+				var tmp = (Bitmap)Bitmap.FromFile(_iconPath);
+				tmp.MakeTransparent();
+				return Tools.ImageToBase64(tmp, true);
+			});
+		}
+
+	}
+
+	internal class NormalIcon : IconWrapper
+	{
+		private readonly string _iconPath;
+
+		public NormalIcon(string iconPath)
+		{
+			_iconPath = iconPath;
+		}
+
+		public override string GetIconData()
+		{
+			if(string.IsNullOrEmpty(_iconPath))
+			{
+				return FallbackIconData;
+			}
+
+			return _iconCache.GetOrAdd(_iconPath, (key) =>
+			{
+				var tmp = IconExtraction.GetIcon(_iconPath);
+				return Tools.ImageToBase64(tmp, true);
+			});
+		}
+	}
+
+	internal class RawIcon : IconWrapper
+	{
+		private readonly string _data;
+
+		public RawIcon(string name, Func<Bitmap?> getIcon)
+		{
+			_data = _iconCache.GetOrAdd(name, (key) =>
+			{
+				var icon = getIcon();
+				if (icon == null)
+				{
+					return FallbackIconData;
+				}
+
+				if (icon.Height < 48 && icon.Width < 48)
+				{
+					using var newImage = new Bitmap(48, 48);
+					newImage.MakeTransparent();
+					using var graphics = Graphics.FromImage(newImage);
+
+					graphics.DrawImage(icon, 4, 4, 40, 40);
+
+
+					return Tools.ImageToBase64(newImage, true);
+				}
+				else
+				{
+					return Tools.ImageToBase64(icon, true);
+				}
+			});
+		}
+
+		public override string GetIconData() => _data;
+	}
+
+}

src/FocusVolumeControl/DialAction.cs

@@ -33,7 +33,7 @@ public class DialAction : EncoderBase
 	}
 
 	PluginSettings settings;
-	AudioHelper _audioHelper = new AudioHelper();
+	static AudioHelper _audioHelper = new AudioHelper();
 	UIState _previousState;
 
 	public DialAction(ISDConnection connection, InitialPayload payload) : base(connection, payload)

src/FocusVolumeControl/FocusVolumeControl.csproj

@@ -55,6 +55,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="AudioHelpers\AppxPackage.cs" />
+    <Compile Include="AudioSessions\IconWrapper.cs" />
     <Compile Include="AudioSessions\ActiveAudioSessionWrapper.cs" />
     <Compile Include="AudioHelpers\AudioHelper.cs" />
     <Compile Include="AudioSessions\CoreAudio.cs" />
@@ -65,11 +66,13 @@
     <Compile Include="AudioSessions\IAudioSession.cs" />
     <Compile Include="FallbackBehavior.cs" />
     <Compile Include="AudioHelpers\NameAndIconHelper.cs" />
+    <Compile Include="UI\IconExtraction.cs" />
     <Compile Include="UI\ISDConnectionExtensions.cs" />
     <Compile Include="Native.cs" />
     <Compile Include="AudioHelpers\ParentProcessUtilities.cs" />
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="UI\JavaIconExtractor.cs" />
     <Compile Include="UI\UIState.cs" />
     <Compile Include="UI\ValueWithOpacity.cs" />
     <Compile Include="WindowChangedEventLoop.cs" />
@@ -96,6 +99,9 @@
     </Content>
   </ItemGroup>
   <ItemGroup>
+    <PackageReference Include="BitFaster.Caching">
+      <Version>2.2.1</Version>
+    </PackageReference>
     <PackageReference Include="IsExternalInit">
       <Version>1.0.3</Version>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>

src/FocusVolumeControl/Program.cs

@@ -6,8 +6,10 @@ internal class Program
 {
 	static void Main(string[] args)
 	{
+#if DEBUG
 		// Uncomment this line of code to allow for debugging
 		//while (!System.Diagnostics.Debugger.IsAttached) { System.Threading.Thread.Sleep(100); }
+#endif
 
 		SDWrapper.Run(args);
 	}

src/FocusVolumeControl/UI/IconExtraction.cs

@@ -0,0 +1,267 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FocusVolumeControl.UI
+{
+	internal class IconExtraction
+	{
+		public static Bitmap GetIcon(string path)
+		{
+			var index = GetIconIndex(path);
+			var handle = GetIconHandle(index);
+
+			using var icon = (Icon)Icon.FromHandle(handle).Clone();
+
+			Shell32.DestroyIcon(handle);
+			return icon.ToBitmap();
+		}
+
+
+		static int GetIconIndex(string pszFile)
+		{
+			SHFILEINFO sfi = new SHFILEINFO();
+			Shell32.SHGetFileInfo(pszFile, 0, ref sfi, (uint)Marshal.SizeOf(sfi), (uint)(SHGFI.SysIconIndex | SHGFI.LargeIcon | SHGFI.UseFileAttributes));
+			return sfi.iIcon;
+		}
+
+		// 256*256
+		static IntPtr GetIconHandle(int iImage)
+		{
+			IImageList spiml = null;
+			Guid guil = new Guid(IID_IImageList2);//or IID_IImageList
+
+			Shell32.SHGetImageList(Shell32.SHIL_EXTRALARGE, ref guil, ref spiml);
+			IntPtr hIcon = IntPtr.Zero;
+			spiml.GetIcon(iImage, Shell32.ILD_TRANSPARENT | Shell32.ILD_IMAGE, ref hIcon);
+
+			return hIcon;
+		}
+
+		const string IID_IImageList = "46EB5926-582E-4017-9FDF-E8998DAA0950";
+		const string IID_IImageList2 = "192B9D83-50FC-457B-90A0-2B82A8B5DAE1";
+
+		public static class Shell32
+		{
+
+			public const int SHIL_LARGE = 0x0;
+			public const int SHIL_SMALL = 0x1;
+			public const int SHIL_EXTRALARGE = 0x2;
+			public const int SHIL_SYSSMALL = 0x3;
+			public const int SHIL_JUMBO = 0x4;
+			public const int SHIL_LAST = 0x4;
+
+			public const int ILD_TRANSPARENT = 0x00000001;
+			public const int ILD_IMAGE = 0x00000020;
+
+			[DllImport("shell32.dll", EntryPoint = "#727")]
+			public extern static int SHGetImageList(int iImageList, ref Guid riid, ref IImageList ppv);
+
+			[DllImport("user32.dll", EntryPoint = "DestroyIcon", SetLastError = true)]
+			public static extern int DestroyIcon(IntPtr hIcon);
+
+			//[DllImport("shell32.dll")]
+			//public static extern uint SHGetIDListFromObject([MarshalAs(UnmanagedType.IUnknown)] object iUnknown, out IntPtr ppidl);
+
+			[DllImport("Shell32.dll")]
+			public static extern IntPtr SHGetFileInfo(string pszPath, uint dwFileAttributes, ref SHFILEINFO psfi, uint cbFileInfo, uint uFlags);
+		}
+
+		[Flags]
+		enum SHGFI : uint
+		{
+			/// <summary>get icon</summary>
+			Icon = 0x000000100,
+			/// <summary>get display name</summary>
+			DisplayName = 0x000000200,
+			/// <summary>get type name</summary>
+			TypeName = 0x000000400,
+			/// <summary>get attributes</summary>
+			Attributes = 0x000000800,
+			/// <summary>get icon location</summary>
+			IconLocation = 0x000001000,
+			/// <summary>return exe type</summary>
+			ExeType = 0x000002000,
+			/// <summary>get system icon index</summary>
+			SysIconIndex = 0x000004000,
+			/// <summary>put a link overlay on icon</summary>
+			LinkOverlay = 0x000008000,
+			/// <summary>show icon in selected state</summary>
+			Selected = 0x000010000,
+			/// <summary>get only specified attributes</summary>
+			Attr_Specified = 0x000020000,
+			/// <summary>get large icon</summary>
+			LargeIcon = 0x000000000,
+			/// <summary>get small icon</summary>
+			SmallIcon = 0x000000001,
+			/// <summary>get open icon</summary>
+			OpenIcon = 0x000000002,
+			/// <summary>get shell size icon</summary>
+			ShellIconSize = 0x000000004,
+			/// <summary>pszPath is a pidl</summary>
+			PIDL = 0x000000008,
+			/// <summary>use passed dwFileAttribute</summary>
+			UseFileAttributes = 0x000000010,
+			/// <summary>apply the appropriate overlays</summary>
+			AddOverlays = 0x000000020,
+			/// <summary>Get the index of the overlay in the upper 8 bits of the iIcon</summary>
+			OverlayIndex = 0x000000040,
+		}
+
+		[StructLayout(LayoutKind.Sequential)]
+		public struct SHFILEINFO
+		{
+			public const int NAMESIZE = 80;
+			public IntPtr hIcon;
+			public int iIcon;
+			public uint dwAttributes;
+			[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]
+			public string szDisplayName;
+			[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 80)]
+			public string szTypeName;
+		};
+
+
+		[StructLayout(LayoutKind.Sequential)]
+		public struct RECT
+		{
+			public int left, top, right, bottom;
+		}
+
+		[StructLayout(LayoutKind.Sequential)]
+		public struct POINT
+		{
+			int x;
+			int y;
+		}
+
+		[StructLayout(LayoutKind.Sequential)]
+		public struct IMAGELISTDRAWPARAMS
+		{
+			public int cbSize;
+			public IntPtr himl;
+			public int i;
+			public IntPtr hdcDst;
+			public int x;
+			public int y;
+			public int cx;
+			public int cy;
+			public int xBitmap;    // x offest from the upperleft of bitmap
+			public int yBitmap;    // y offset from the upperleft of bitmap
+			public int rgbBk;
+			public int rgbFg;
+			public int fStyle;
+			public int dwRop;
+			public int fState;
+			public int Frame;
+			public int crEffect;
+		}
+
+		[StructLayout(LayoutKind.Sequential)]
+		public struct IMAGEINFO
+		{
+			public IntPtr hbmImage;
+			public IntPtr hbmMask;
+			public int Unused1;
+			public int Unused2;
+			public RECT rcImage;
+		}
+		[ComImportAttribute()]
+		[GuidAttribute("46EB5926-582E-4017-9FDF-E8998DAA0950")]
+		[InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
+		public interface IImageList
+		{
+			[PreserveSig]
+			int Add(IntPtr hbmImage, IntPtr hbmMask, ref int pi);
+
+			[PreserveSig]
+			int ReplaceIcon(int i, IntPtr hicon, ref int pi);
+
+			[PreserveSig]
+			int SetOverlayImage(int iImage, int iOverlay);
+
+			[PreserveSig]
+			int Replace(int i, IntPtr hbmImage, IntPtr hbmMask);
+
+			[PreserveSig]
+			int AddMasked(IntPtr hbmImage, int crMask, ref int pi);
+
+			[PreserveSig]
+			int Draw(ref IMAGELISTDRAWPARAMS pimldp);
+
+			[PreserveSig]
+			int Remove(int i);
+
+			[PreserveSig]
+			int GetIcon(int i, int flags, ref IntPtr picon);
+
+			[PreserveSig]
+			int GetImageInfo(int i, ref IMAGEINFO pImageInfo);
+
+			[PreserveSig]
+			int Copy(int iDst, IImageList punkSrc, int iSrc, int uFlags);
+
+			[PreserveSig]
+			int Merge(int i1, IImageList punk2, int i2, int dx, int dy, ref Guid riid, ref IntPtr ppv);
+
+			[PreserveSig]
+			int Clone(ref Guid riid, ref IntPtr ppv);
+
+			[PreserveSig]
+			int GetImageRect(int i, ref RECT prc);
+
+			[PreserveSig]
+			int GetIconSize(ref int cx, ref int cy);
+
+			[PreserveSig]
+			int SetIconSize(int cx, int cy);
+
+			[PreserveSig]
+			int GetImageCount(ref int pi);
+
+			[PreserveSig]
+			int SetImageCount(int uNewCount);
+
+			[PreserveSig]
+			int SetBkColor(int clrBk, ref int pclr);
+
+			[PreserveSig]
+			int GetBkColor(ref int pclr);
+
+			[PreserveSig]
+			int BeginDrag(int iTrack, int dxHotspot, int dyHotspot);
+
+			[PreserveSig]
+			int EndDrag();
+
+			[PreserveSig]
+			int DragEnter(IntPtr hwndLock, int x, int y);
+
+			[PreserveSig]
+			int DragLeave(IntPtr hwndLock);
+
+			[PreserveSig]
+			int DragMove(int x, int y);
+
+			[PreserveSig]
+			int SetDragCursorImage(ref IImageList punk, int iDrag, int dxHotspot, int dyHotspot);
+
+			[PreserveSig]
+			int DragShowNolock(int fShow);
+
+			[PreserveSig]
+			int GetDragImage(ref POINT ppt, ref POINT pptHotspot, ref Guid riid, ref IntPtr ppv);
+
+			[PreserveSig]
+			int GetItemFlags(int i, ref int dwFlags);
+
+			[PreserveSig]
+			int GetOverlayImage(int iOverlay, ref int piIndex);
+		};
+
+	}
+}

src/FocusVolumeControl/UI/JavaIconExtractor.cs

@@ -0,0 +1,96 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace FocusVolumeControl.UI
+{
+	internal class JavaIconExtractor
+	{
+		const int WM_GETICON = 0x7F;
+		const int WM_QUERYDRAGICON = 0x0037;
+		//const int ICON_SMALL = 0; //(16x16)
+		const int ICON_BIG = 1; //(32x32)
+		const int SMTO_ABORTIFHUNG = 0x3;
+		const int GCL_HICON = -14;
+
+		[DllImport("User32.dll")]
+		static extern int SendMessageTimeout(IntPtr hWnd, int uMsg, int wParam, int lParam, int fuFlags, int uTimeout, out int lpdwResult);
+		[DllImport("User32.dll")]
+		static extern int GetClassLong(IntPtr hWnd, int index);
+
+		[DllImport("user32.dll", EntryPoint = "DestroyIcon", SetLastError = true)]
+		public static extern int DestroyIcon(IntPtr hIcon);
+
+		public static Bitmap? GetWindowBigIconWithRetry(IntPtr hWnd)
+		{
+			var retry = 5;
+			var icon = GetWindowBigIcon(hWnd);
+
+			while(icon == null || retry > 0)
+			{
+				Thread.Sleep(100);
+				icon = GetWindowBigIcon(hWnd);
+				retry--;
+			}
+
+			return icon;
+
+		}
+
+		/// <summary>
+		/// Retrieves a big icon (32*32) of a window
+		/// </summary>
+		/// <param name="hWnd"></param>
+		/// <returns></returns>
+		public static Bitmap? GetWindowBigIcon(IntPtr hWnd)
+		{
+			IntPtr hIcon = IntPtr.Zero;
+			try
+			{
+				int result;
+				SendMessageTimeout(hWnd, WM_GETICON, ICON_BIG, //big icon size
+					0, SMTO_ABORTIFHUNG, 1000, out result);
+
+				hIcon = new IntPtr(result);
+				if (hIcon == IntPtr.Zero) //some applications don't respond to sendmessage, we have to use GetClassLong in that case
+				{
+					result = GetClassLong(hWnd, GCL_HICON); //big icon size
+					hIcon = new IntPtr(result);
+				}
+
+				if (hIcon == IntPtr.Zero)
+				{
+					SendMessageTimeout(hWnd, WM_QUERYDRAGICON, 0, 0, SMTO_ABORTIFHUNG, 1000, out result);
+					hIcon = new IntPtr(result);
+				}
+
+				if (hIcon == IntPtr.Zero)
+				{
+					return null;
+				}
+				else
+				{
+					using var tmp = (Icon)Icon.FromHandle(hIcon).Clone();
+					return tmp.ToBitmap();
+				}
+			}
+			catch (Exception)
+			{
+			}
+			finally
+			{
+				if(hIcon != IntPtr.Zero)
+				{
+					DestroyIcon(hIcon);
+				}
+			}
+			return null;
+		}
+
+	}
+}

src/FocusVolumeControl/WindowChangedEventLoop.cs

@@ -39,12 +39,24 @@ namespace FocusVolumeControl
 
 		public event Action WindowChanged;
 
-		private void WinEventProc(IntPtr hWinEventHook, uint eventType, IntPtr hwnd, int idObject, int idChild, uint dwEventThread, uint dwmsEventTime)
+		CancellationTokenSource? _cancellationTokenSource = null;
+
+		private async void WinEventProc(IntPtr hWinEventHook, uint eventType, IntPtr hwnd, int idObject, int idChild, uint dwEventThread, uint dwmsEventTime)
 		{
 			try
 			{
+				//debounce the window changed events by 100 ms because if you click mouse over an application on the start bar
+				//and then click on the preview window, it will quickly go from current -> fallback -> new app
+				//which can often result in it getting stuck on the fallback app
+				_cancellationTokenSource?.Cancel();
+				_cancellationTokenSource = new CancellationTokenSource();
+				await Task.Delay(100, _cancellationTokenSource.Token);
 				WindowChanged?.Invoke();
 			}
+			catch (TaskCanceledException)
+			{
+				//ignored
+			}
 			catch (Exception ex)
 			{
 				Logger.Instance.LogMessage(TracingLevel.ERROR, $"Unexpected Error in EventHandler:\n {ex}");

src/SoundBrowser/MainWindow.xaml.cs

@@ -57,7 +57,7 @@ public partial class MainWindow : Window
 
 			foreach (var p in processes)
 			{
-				var (displayName, _) = (new NameAndIconHelper()).GetProcessInfo(p);
+				var displayName = (new NameAndIconHelper()).GetProcessInfo(p);
 
 				sb.AppendLine($"pid: {p.Id}");
 				sb.AppendLine($"\tprocessName: {p.ProcessName}");
@@ -92,14 +92,16 @@ public partial class MainWindow : Window
 		deviceEnumerator.EnumAudioEndpoints(DataFlow.Render, DeviceState.Active, out var deviceCollection);
 		deviceCollection.GetCount(out var num);
 
+
 		for (int i = 0; i < num; i++)
 		{
 			deviceCollection.Item(i, out var device);
 			//todo: put the device name in the output
-			sb.AppendLine("----");
+			sb.AppendLine($"----");
+
 
 			Guid iid = typeof(IAudioSessionManager2).GUID;
-			device.Activate(ref iid, 0, IntPtr.Zero, out var m);
+			device.Activate(ref iid, CLSCTX.ALL, IntPtr.Zero, out var m);
 			var manager = (IAudioSessionManager2)m;
 
 
@@ -112,9 +114,10 @@ public partial class MainWindow : Window
 				sessionEnumerator.GetSession(s, out var session);
 
 				session.GetProcessId(out var processId);
+				session.GetIconPath(out var path);
 				var audioProcess = Process.GetProcessById(processId);
 
-				var (displayName, _) = (new NameAndIconHelper()).GetProcessInfo(audioProcess);
+				var displayName = (new NameAndIconHelper()).GetProcessInfo(audioProcess);
 				sb.AppendLine($"pid: {audioProcess.Id}\t\t processName: {displayName}");
 			}