treat dotnet like java when getting icons. change cache to be a little less aggressive to make things like chrome a little better

src/FocusVolumeControl/AudioHelpers/AudioHelper.cs

@@ -12,6 +12,7 @@ public class AudioHelper
 
 	static object _lock = new object();
 	int[] _currentProcesses;
+	int _retryFallbackCount = 0;
 
 	public IAudioSession Current { get; private set; }
 
@@ -49,9 +50,10 @@ 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);
 
@@ -114,10 +116,18 @@ public class AudioHelper
 			var processes = GetPossibleProcesses();
 			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)
 			{
@@ -214,7 +224,7 @@ 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;
 
 
@@ -245,7 +255,7 @@ 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;
 
 
@@ -271,7 +281,7 @@ 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);

src/FocusVolumeControl/AudioHelpers/NameAndIconHelper.cs

@@ -53,10 +53,10 @@ public class NameAndIconHelper
 				//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")
+				if (process.ProcessName == "javaw" || process.ProcessName == "java" || process.ProcessName == "dotnet")
 				{
 					var windowHandle = process.MainWindowHandle;
-					var lazyIcon = new Lazy<Bitmap?>(() => JavaIconExtractor.GetWindowBigIcon(windowHandle));
+					var lazyIcon = () => JavaIconExtractor.GetWindowBigIconWithRetry(windowHandle);
 					results.IconWrapper = new RawIcon(windowHandle.ToString(), lazyIcon);
 
 				}

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

@@ -2,12 +2,7 @@
 using BitFaster.Caching.Lru;
 using FocusVolumeControl.UI;
 using System;
-using System.Collections.Generic;
 using System.Drawing;
-using System.IO;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace FocusVolumeControl.AudioSession
 {
@@ -74,15 +69,16 @@ namespace FocusVolumeControl.AudioSession
 	{
 		private readonly string _data;
 
-		public RawIcon(string name, Lazy<Bitmap?> lazyIcon)
+		public RawIcon(string name, Func<Bitmap?> getIcon)
 		{
 			_data = _iconCache.GetOrAdd(name, (key) =>
 			{
-				var icon = lazyIcon.Value;
+				var icon = getIcon();
 				if (icon == null)
 				{
 					return FallbackIconData;
 				}
+
 				if (icon.Height < 48 && icon.Width < 48)
 				{
 					using var newImage = new Bitmap(48, 48);

src/FocusVolumeControl/UI/JavaIconExtractor.cs

@@ -4,6 +4,7 @@ using System.Drawing;
 using System.Linq;
 using System.Runtime.InteropServices;
 using System.Text;
+using System.Threading;
 using System.Threading.Tasks;
 
 namespace FocusVolumeControl.UI
@@ -25,6 +26,22 @@ namespace FocusVolumeControl.UI
 		[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>

src/SoundBrowser/MainWindow.xaml.cs

@@ -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;