Allow wx parents a chance to handle events fired by non-wx children. (i.e. wxActiveX controls)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@36450 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/evtloop.cpp

@@ -124,24 +124,36 @@ bool wxEventLoop::IsChildOfCriticalWindow(wxWindowMSW *win)
 bool wxEventLoop::PreProcessMessage(WXMSG *msg)
 {
     HWND hwnd = msg->hwnd;
-    wxWindow * const wndThis = wxGetWindowFromHWND((WXHWND)hwnd);
+    wxWindow *wndThis = wxGetWindowFromHWND((WXHWND)hwnd);
     wxWindow *wnd;
 
-    // this may happen if the event occurred in a standard modeless dialog (the
+	wxWindow* parent = NULL;
-    // only example of which I know of is the find/replace dialog) - then call
+
-    // IsDialogMessage() to make TAB navigation in it work
+	// this might happen if we're in a modeless dialog, or if a wx control has
+	// children which themselves were not created by wx (i.e. wxActiveX control children)
     if ( !wndThis )
     {
-        // we need to find the dialog containing this control as
-        // IsDialogMessage() just eats all the messages (i.e. returns true for
-        // them) if we call it for the control itself
         while ( hwnd && ::GetWindowLong(hwnd, GWL_STYLE) & WS_CHILD )
         {
             hwnd = ::GetParent(hwnd);
+
+			// If the control has a wx parent, break and give the parent a chance
+			// to process the window message
+			wndThis = wxGetWindowFromHWND((WXHWND)hwnd);
+			if (wndThis != NULL)
+				break;
         }
 
+		if ( !wndThis ){
+			// this may happen if the event occurred in a standard modeless dialog (the
+			// only example of which I know of is the find/replace dialog) - then call
+			// IsDialogMessage() to make TAB navigation in it work
+			
+			// NOTE: IsDialogMessage() just eats all the messages (i.e. returns true for
+			// them) if we call it for the control itself
 			return hwnd && ::IsDialogMessage(hwnd, msg) != 0;
 		}
+    }
 
     if ( !AllowProcessing(wndThis) )
     {