Motif updates

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@864 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/motif/listbox.h

@@ -89,6 +89,8 @@ class WXDLLEXPORT wxListBox: public wxControl
 
   void Command(wxCommandEvent& event);
 
+  WXWidget GetTopWidget() const;
+
 protected:
   int       m_noItems;
   int       m_selected;