Old API depreciated. Use of new API. Source cleaning.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@31234 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/treebase.cpp

@@ -90,5 +90,14 @@ wxTreeEvent::wxTreeEvent(const wxTreeEvent & event)
     m_editCancelled = event.m_editCancelled;
 }
 
+#if WXWIN_COMPATIBILITY_2_2
+
+int wxTreeEvent::GetCode() const
+{
+    return m_evtKey.GetKeyCode();
+}
+
+#endif // WXWIN_COMPATIBILITY_2_2
+
 #endif // wxUSE_TREECTRL