// **********************************************************************//// Copyright (c) 2003-2007 ZeroC, Inc. All rights reserved.//// This copy of Ice is licensed to you under the terms described in the// ICE_LICENSE file included in this distribution.//// **********************************************************************#ifndef CALLBACK_ICE#define CALLBACK_ICEmodule Demo{interface CallbackReceiver{    void callback();};interface CallbackSender{    void initiateCallback(CallbackReceiver* proxy);    void shutdown();};};#endif