Only subclass code windows and designers.

Author: comintern

Rubberduck.VBEEditor/Events/VBENativeServices.cs

@@ -73,10 +73,13 @@ public static void VbeEventCallback(IntPtr hWinEventHook, uint eventType, IntPtr
             {
                 OnSelectionChanged(hwnd);             
             }
-            else if (idObject == (int)ObjId.Window &&
-                     (eventType == (uint)WinEvent.ObjectCreate || eventType == (uint)WinEvent.ObjectDestroy) && 
-                     hwnd.ToWindowType() != WindowType.Indeterminate)
+            else if (idObject == (int)ObjId.Window && (eventType == (uint)WinEvent.ObjectCreate || eventType == (uint)WinEvent.ObjectDestroy))
             {
+                var type = hwnd.ToWindowType();
+                if (type != WindowType.DesignerWindow && type != WindowType.VbaWindow)
+                {
+                    return;                   
+                }
                 if (eventType == (uint) WinEvent.ObjectCreate)
                 {
                     AttachWindow(hwnd);
@@ -90,6 +93,7 @@ public static void VbeEventCallback(IntPtr hWinEventHook, uint eventType, IntPtr
             {
                 //Test to see if it was a selection change in the project window.
                 var parent = User32.GetParent(hwnd);
+                //TODO: Need to test to see if the Project window is active before raising this.
                 if (parent != IntPtr.Zero && parent.ToWindowType() == WindowType.Project)
                 {
                     FocusDispatcher(_vbe, new WindowChangedEventArgs(parent, null, null, FocusType.ChildFocus));