Corrected hotkeys for MDI menus.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2679 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk/menu.h

@@ -92,6 +92,9 @@ public:
 
     // implementation only
     wxList& GetMenus() { return m_menus; }
+    
+    void SetInvokingWindow( wxWindow *win );
+    void UnsetInvokingWindow( wxWindow *win );
 
     GtkAccelGroup   *m_accel;
     GtkItemFactory  *m_factory;