Refactor how icons work, and made java icons work a little better

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)
@@ -45,12 +48,27 @@ public class NameAndIconHelper
 					}
 				}
 
-				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")
+				{
+					var windowHandle = process.MainWindowHandle;
+					var lazyIcon = new Lazy<Bitmap?>(() => JavaIconExtractor.GetWindowBigIcon(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

@@ -6,55 +6,27 @@ 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
 {
-	static ConcurrentLru<string, string> _iconCache = new ConcurrentLru<string, string>(10);
-
 	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 GetIconFromIconPath()
-	{
-		return _iconCache.GetOrAdd(IconPath, (key) =>
-		{
-			var tmp = (Bitmap)Bitmap.FromFile(IconPath);
-			tmp.MakeTransparent();
-			return Tools.ImageToBase64(tmp, true);
-		});
-	}
-
-	string GetIconFromExecutablePath()
-	{
-		return _iconCache.GetOrAdd(ExecutablePath, (key) =>
-		{
-			var tmp = IconExtraction.GetIcon(ExecutablePath);
-			//var tmp = Icon.ExtractAssociatedIcon(ExecutablePath);
-			return Tools.ImageToBase64(tmp, true);
-		});
-	}
+	public IconWrapper? IconWrapper { get; set; }
 
 	public string GetIcon()
 	{
 		try
 		{
-			if (!string.IsNullOrEmpty(IconPath))
-			{
-				return GetIconFromIconPath();
-			}
-			else
-			{
-				return GetIconFromExecutablePath();
-			}
+			return IconWrapper?.GetIconData() ?? IconWrapper.FallbackIconData;
 		}
 		catch
 		{
-			return "Images/encoderIcon";
+			return IconWrapper.FallbackIconData;
 		}
 	}
 

src/FocusVolumeControl/AudioSessions/IconWrapper.cs

@@ -0,0 +1,107 @@
+using BarRaider.SdTools;
+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
+{
+	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, Lazy<Bitmap?> lazyIcon)
+		{
+			_data = _iconCache.GetOrAdd(name, (key) =>
+			{
+				var icon = lazyIcon.Value;
+				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/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" />
@@ -71,6 +72,7 @@
     <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" />

src/FocusVolumeControl/UI/JavaIconExtractor.cs

@@ -0,0 +1,79 @@
+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 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);
+
+		/// <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/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}");
@@ -112,9 +112,10 @@ 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}");
 			}