Mark preset dirty when disabling clickthrough for a window

Dalamud/Interface/ImGuiBackend/InputHandler/Win32InputHandler.cs

@@ -494,7 +494,12 @@ internal sealed unsafe partial class Win32InputHandler : IImGuiInputHandler
             // (This is the position you can get with ::GetCursorPos() or WM_MOUSEMOVE + ::ClientToScreen(). In theory adding viewport->Pos to a client position would also be the same.)
             var mousePos = mouseScreenPos;
             if ((io.ConfigFlags & ImGuiConfigFlags.ViewportsEnable) == 0)
-                ClientToScreen(focusedWindow, &mousePos);
+            {
+                // Use game window, otherwise, positions are calculated based on the focused window which might not be the game.
+                // Leads to offsets.
+                ClientToScreen(this.hWnd, &mousePos);
+            }
+
             io.AddMousePosEvent(mousePos.x, mousePos.y);
         }
 

Dalamud/Interface/Windowing/Window.cs

@@ -84,7 +84,7 @@ public abstract class Window
             Click = _ =>
             {
                 this.internalIsClickthrough = false;
-                this.presetDirty = false;
+                this.presetDirty = true;
                 ImGui.OpenPopup(AdditionsPopupName);
             },
             Priority = int.MinValue,
@@ -905,7 +905,7 @@ public abstract class Window
     private void DrawErrorMessage()
     {
         // TODO: Once window systems are services, offer to reload the plugin
-        ImGui.TextColoredWrapped(ImGuiColors.DalamudRed,Loc.Localize("WindowSystemErrorOccurred", "An error occurred while rendering this window. Please contact the developer for details."));
+        ImGui.TextColoredWrapped(ImGuiColors.DalamudRed, Loc.Localize("WindowSystemErrorOccurred", "An error occurred while rendering this window. Please contact the developer for details."));
 
         ImGuiHelpers.ScaledDummy(5);