diff -r 5eb765a7a793 -r 0cdb8089a29f ui/wpf/UIwrapper/UIwrapper/toolkit.h
--- a/ui/wpf/UIwrapper/UIwrapper/toolkit.h	Sun Jan 25 15:01:04 2015 +0100
+++ b/ui/wpf/UIwrapper/UIwrapper/toolkit.h	Tue Jan 27 09:59:32 2015 +0100
@@ -17,12 +17,12 @@
 public ref class EventWrapper {
 	UIcallback callback = NULL;
 	void *userdata = NULL;
-	Action ^action;
+	Action<IntPtr> ^action;
 
 public:
 	EventWrapper(UIcallback callback, void *userdata);
 
-	Action^ GetAction();
+	Action<IntPtr>^ GetAction();
 
-	void Callback();
+	void Callback(IntPtr uiobj);
 };