*/
public void addTerminateListener(ITerminateListener terminateListener) {
if(terminateListeners == null)
terminateListeners = new Hashtable();
TerminateListenerWrapper terminateListenerWrapper = new TerminateListenerWrapper(terminateListener);
xDesktop.addTerminateListener(terminateListenerWrapper);
terminateListeners.put(terminateListener, terminateListenerWrapper);
}