static void changedEventReceiver(ChangedEventHandler handler, long sourcePointer) {
handler.handle((TreeSelection) ObjectCache.lookup(sourcePointer));
}
/**
* Removes the specified handler for changed events from this TreeSelection.
*
* @param handler the handler to be removed.
*/
public void removeChangedHandler(ChangedEventHandler handler) {
Gtk.removeHandler(pointer, handler.getHandleId());
}