Reduce Information overhead and catch closed windows.

OBSBlur/OBS/Blur.cs

@@ -20,7 +20,6 @@ public class Blur
     {
         this.enabledScenes = enabledScenes;
         this.blurPrograms = blurPrograms;
-        windowManager.UpdateInterval = 1;
         _websocket.CurrentProgramSceneChanged += WebsocketOnCurrentProgramSceneChanged;
         _websocket.Connected += WebsocketOnConnected;
         _websocket.Disconnected += WebsocketOnDisconnected;
@@ -40,34 +39,35 @@ public class Blur
         windowInfos ??= windowManager.WindowInfos;
         zOrder ??= windowManager.WindowZOrder;
 
-        bool addRemove = true;
+        bool maximixedWindowReached = false;
         
         foreach (IntPtr window in zOrder)
         {
             WindowInfo windowInfo = windowInfos.FirstOrDefault(w => w.WindowHandle == window);
-            if(windowInfo is {WindowHandle: 0x0})
+            if(windowInfo is {WindowHandle: 0x0})//No WindowInfo found
                 continue;
-            bool blur = false;
-            foreach(string program in blurPrograms)
-                if (windowInfo.ProcessInfo.ProcessName.Contains(program, StringComparison.OrdinalIgnoreCase))
-                    blur = true;
             
-            if(blur && addRemove)
-                BlurWindow(windowInfo);
-            else if(blur && addRemove is false) 
-                DeleteBlur(windowInfo);
+            if(GetBlurWindow(windowInfo))
+                if(!maximixedWindowReached)
+                    BlurWindow(windowInfo);
+                else if(maximixedWindowReached) 
+                    DeleteBlur(windowInfo);
             
-            if (windowInfo.WindowPlacement.ShowCmd is ShowWindowCommands.Maximize)
-                    addRemove = false;
+            if (windowInfo.WindowCommands is ShowWindowCommands.Maximize)
+                maximixedWindowReached = true;
         }
         
-        foreach(WindowInfo windowInfo in windowInfos)
-            if (windowInfo.WindowPlacement.ShowCmd is ShowWindowCommands.ShowMinimized &&
-                windowHandleSceneItems.ContainsKey(windowInfo.WindowHandle))
-            {
-                DeleteBlur(windowInfo);
-                windowHandleSceneItems.Remove(windowInfo.WindowHandle);
-            }
+        foreach(IntPtr blurredWindow in windowHandleSceneItems.Keys.ToArray())
+            if(!windowInfos.Any(w => w.WindowHandle == blurredWindow))
+                DeleteBlur(blurredWindow);
+    }
+
+    private bool GetBlurWindow(WindowInfo windowInfo)
+    {
+        foreach(string program in blurPrograms)
+            if (windowInfo.ProcessInfo.ProcessName.Contains(program))
+                return true;
+        return false;
     }
 
     private void BlurWindow(WindowInfo windowInfo)
@@ -103,26 +103,14 @@ public class Blur
         if (!windowHandleSceneItems.ContainsKey(windowInfo.WindowHandle))
             return;
 
-        SceneItemTransformInfo info = windowInfo.WindowPlacement.ShowCmd switch
+        SceneItemTransformInfo info = new()
         {
-            ShowWindowCommands.Maximize => new ()
-                {
-                    X = 0,
-                    Y = 0,
-                    BoundsHeight = 1080, //TODO desktop res
-                    BoundsWidth = 1920,
-                    BoundsType = SceneItemBoundsType.OBS_BOUNDS_STRETCH,
-                    Alignnment = 5
-                },
-            _ => new()
-            {
-                X = windowInfo.WindowPlacement.NormalPosition.Left,
-                Y = windowInfo.WindowPlacement.NormalPosition.Top,
-                BoundsHeight = windowInfo.WindowPlacement.NormalPosition.Height,
-                BoundsWidth = windowInfo.WindowPlacement.NormalPosition.Width,
-                BoundsType = SceneItemBoundsType.OBS_BOUNDS_STRETCH,
-                Alignnment = 5
-            },
+            X = windowInfo.WindowRectangle.X,
+            Y = windowInfo.WindowRectangle.Y,
+            BoundsHeight = windowInfo.WindowRectangle.Height,
+            BoundsWidth = windowInfo.WindowRectangle.Width,
+            BoundsType = SceneItemBoundsType.OBS_BOUNDS_STRETCH,
+            Alignnment = 5
         };
         
         Dictionary<string, object> request = new()
@@ -143,17 +131,22 @@ public class Blur
         _websocket.SendRequest("SetSceneItemEnabled", JObject.FromObject(request2));
     }
 
-    private void DeleteBlur(WindowInfo windowInfo)
+    private void DeleteBlur(IntPtr windowHandle)
     {
-        if (!windowHandleSceneItems.ContainsKey(windowInfo.WindowHandle))
+        if (!windowHandleSceneItems.ContainsKey(windowHandle))
             return;
         Dictionary<string, object> request = new()
         {
             {"sceneName", currentScene},
-            {"sceneItemId", windowHandleSceneItems[windowInfo.WindowHandle]}
+            {"sceneItemId", windowHandleSceneItems[windowHandle]}
         };
         _websocket.SendRequest("RemoveSceneItem", JObject.FromObject(request));
-        windowHandleSceneItems.Remove(windowInfo.WindowHandle);
+        windowHandleSceneItems.Remove(windowHandle);
+    }
+
+    private void DeleteBlur(WindowInfo windowInfo)
+    {
+        DeleteBlur(windowInfo.WindowHandle);
     }
 
     private uint GetBlurSource()
@@ -177,19 +170,18 @@ public class Blur
 
     private void WindowManagerOnWindowZOrderChanged(IntPtr[] neworder)
     {
-        /*
-            uint i = 0;
-            string prnt = "";
-            foreach (IntPtr windowHandle in order)
-            {
-                WindowInfo windowInfo = windowManager.WindowInfos.FirstOrDefault(w => w.WindowHandle == windowHandle);
-                if(windowInfo.WindowHandle is 0x0)
-                    continue;
-                prnt += $"{++i,3} {windowInfo}\n";
-            }
+        
+        uint i = 0;
+        string prnt = "";
+        foreach (IntPtr windowHandle in neworder)
+        {
+            WindowInfo windowInfo = windowManager.WindowInfos.FirstOrDefault(w => w.WindowHandle == windowHandle);
+            if (windowInfo.WindowHandle is 0x0)
+                continue;
+            prnt += $"{++i,3} {windowInfo}\n";
+        }
 
-            Console.Clear();
-            Console.WriteLine(prnt);*/
+        Console.WriteLine(prnt);
         Console.WriteLine($"Z-order changed {DateTime.UtcNow:O}");
         UpdateBlurs(zOrder: neworder);
     }

OBSBlur/Window/WindowInfo.cs

@@ -5,15 +5,19 @@ namespace OBSBlur.Window;
 public struct WindowInfo
 {
     internal IntPtr WindowHandle { get; init; }
-    public WindowPlacement WindowPlacement { get; init; }
+    public bool IsVisible { get; init; }
+    public ShowWindowCommands WindowCommands { get; init; }
+    public Rectangle WindowRectangle { get; init; }
     public string WindowTitle { get; init; }
     public Process ProcessInfo { get; init; }
 
-    public WindowInfo(IntPtr windowHandle, string windowTitle, Process processInfo, WindowPlacement windowPlacement)
+    public WindowInfo(IntPtr windowHandle, string windowTitle, Process processInfo, bool isWindowVisible, ShowWindowCommands windowCommands, Rectangle windowRectangle)
     {
         this.WindowHandle = windowHandle;
         this.ProcessInfo = processInfo;
-        this.WindowPlacement = windowPlacement;
+        this.IsVisible = isWindowVisible;
+        this.WindowCommands = windowCommands;
+        this.WindowRectangle = windowRectangle;
         this.WindowTitle = windowTitle;
     }
 
@@ -25,7 +29,8 @@ public struct WindowInfo
     public bool Equals(WindowInfo other)
     {
         return WindowHandle == other.WindowHandle &&
-               WindowPlacement.Equals(other.WindowPlacement) &&
+               IsVisible == other.IsVisible &&
+               WindowCommands == other.WindowCommands &&
                WindowTitle.Equals(other.WindowTitle) &&
                ProcessInfo.ProcessName.Equals(other.ProcessInfo.ProcessName) &&
                ProcessInfo.Id == other.ProcessInfo.Id;
@@ -33,7 +38,7 @@ public struct WindowInfo
 
     public override int GetHashCode()
     {
-        return HashCode.Combine(WindowHandle, WindowPlacement, WindowTitle, ProcessInfo);
+        return HashCode.Combine(WindowHandle, IsVisible, WindowTitle, ProcessInfo);
     }
 
     public override string ToString()
@@ -41,6 +46,6 @@ public struct WindowInfo
         const int cutoffStr = 17;
         string processNameStr = ProcessInfo.ProcessName.Substring(0, Math.Min(cutoffStr, ProcessInfo.ProcessName.Length));
         string windowTitleStr = WindowTitle.Substring(0, Math.Min(cutoffStr, WindowTitle.Length));
-        return $"{WindowHandle,8} {ProcessInfo.Id,8} {processNameStr,cutoffStr} {windowTitleStr,-cutoffStr} {WindowPlacement}";
+        return $"{WindowHandle,8} {ProcessInfo.Id,8} {processNameStr,cutoffStr} {windowTitleStr,-cutoffStr} {(IsVisible ? "visible" : "hidden"),-8} {WindowCommands,-13} {WindowRectangle}";
     }
 }

OBSBlur/Window/WindowManager.cs

@@ -58,12 +58,13 @@ public partial class WindowManager : IDisposable
 
     private bool GetWindowInfo(IntPtr windowHandle, IntPtr lParam)
     {
-        WindowPlacement windowPlacement = new ();
-        GetWindowPlacement(windowHandle, ref windowPlacement);
-        Rectangle n = windowPlacement.NormalPosition;
+        bool isVisible = IsWindowVisible(windowHandle);
         //Do not add if Window is not a drawable
-        if (n is { Left: 0, Top: 0, Right: 0, Bottom: 0 })
+        if (!isVisible)
             return true;
+
+        WindowPlacement placement = new ();
+        GetWindowPlacement(windowHandle, ref placement);
         
         uint pid;
         GetWindowThreadProcessId(windowHandle, out pid);
@@ -76,7 +77,10 @@ public partial class WindowManager : IDisposable
         if (windowTitle.Length < 1)
             return true;
 
-        _windows.Add(new WindowInfo(windowHandle, windowTitle, processInfo, windowPlacement));
+        Rectangle rect;
+        GetWindowRect(windowHandle, out rect);
+
+        _windows.Add(new WindowInfo(windowHandle, windowTitle, processInfo, isVisible, placement.ShowCmd, rect));
         return true;
     }
     

OBSBlur/Window/WindowManagerUser32Dll.cs

@@ -16,6 +16,13 @@ public partial class WindowManager
     
     [DllImport("user32.dll")]
     static extern IntPtr GetTopWindow(IntPtr hWnd);
+    
+    [DllImport("user32.dll")]
+    static extern bool GetWindowRect(IntPtr hWnd, out Rectangle rectangle);
+    
+    [DllImport("user32.dll")]
+    static extern bool IsWindowVisible(IntPtr hWnd);
+    
     static List<IntPtr> GetWindowZOrder()
     {
         const uint GW_HWNDNEXT = 2;