Set the mouse pos for the drag events, add support for the tooltip event

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@32561 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/contrib/gizmos/wxCode/include/wx/treelistctrl.h

@@ -543,6 +543,7 @@ protected:
 //     // the common part of all ctors
 //     void Init();
 
+    void OnGetToolTip( wxTreeEvent &event );
     void OnSize(wxSizeEvent& event);
     void CalculateAndSetHeaderHeight();
     void DoHeaderLayout();