diff -r 40be5c189e2e -r 5eb765a7a793 ui/wpf/UIwrapper/UIwrapper/toolkit.h
--- a/ui/wpf/UIwrapper/UIwrapper/toolkit.h	Sat Jan 24 19:17:35 2015 +0100
+++ b/ui/wpf/UIwrapper/UIwrapper/toolkit.h	Sun Jan 25 15:01:04 2015 +0100
@@ -10,4 +10,19 @@
 
 #define UI_EXPORT extern "C" __declspec(dllexport)
 
+extern "C" typedef void(*UIcallback)(void*, void*);
+
 void* ObjectToPtr(Object ^obj);
+
+public ref class EventWrapper {
+	UIcallback callback = NULL;
+	void *userdata = NULL;
+	Action ^action;
+
+public:
+	EventWrapper(UIcallback callback, void *userdata);
+
+	Action^ GetAction();
+
+	void Callback();
+};