In this post I have a working example for  ;~ The main object with acces to the windows automation api 3.0 Global $objUIAutomation = _AutoItObject_ObjCreate($sCLSID_CUIAutomation, $sIID_IUIAutomation, $dtagIUIAutomation) ;~ Focus Changed Handler Global $oFCEHandler = _AutoItObject_ObjectFromDtag("_MyHandler_", $dtagIUIAutomationFocusChangedEventHandler) $objUIAutomation.AddFocusChangedEventHandler(0, $oFCEHandler.__ptr__) Now I am rebuilding this thread in this thread '?do=embed' framebord