all delete functions now send delete notification event

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1225 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/generic/treectrl.h

@@ -423,6 +423,7 @@ public:
     void SortChildren(const wxTreeItemId& item,
                       wxTreeItemCmpFunc *cmpFunction = NULL);
 
+    // callbacks
     void OnPaint( wxPaintEvent &event );
     void OnSetFocus( wxFocusEvent &event );
     void OnKillFocus( wxFocusEvent &event );
@@ -430,6 +431,9 @@ public:
     void OnMouse( wxMouseEvent &event );
     void OnIdle( wxIdleEvent &event );
 
+    // implementation
+    void SendDeleteEvent(wxGenericTreeItem *itemBeingDeleted);
+
 protected:
     wxGenericTreeItem   *m_anchor;
     wxGenericTreeItem   *m_current;