tigervnc/rfb_win32/WMNotifier.h

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/* Copyright (C) 2002-2003 RealVNC Ltd. All Rights Reserved.
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
// -=- WMNotifier.h
//
// The WMNotifier is used to get callbacks indicating changes in the state
// of the system, for instance in the size/format/palette of the display.
// The WMNotifier contains a Win32 window, which receives notifications of
// system events and stores them. Whenever processEvent is called, any
// incoming events are processed and the appropriate notifier called.
#ifndef __RFB_WIN32_NOTIFIER_H__
#define __RFB_WIN32_NOTIFIER_H__
#include <rfb/SDesktop.h>
#include <rfb/Threading.h>
#include <rfb_win32/MsgWindow.h>
#include <rfb_win32/DeviceFrameBuffer.h>
#include <rfb_win32/SInput.h>
namespace rfb {
namespace win32 {
// -=- Window Message Monitor implementation
class WMMonitor : MsgWindow {
public:
class Notifier {
public:
typedef enum {DisplaySizeChanged, DisplayColourMapChanged,
DisplayPixelFormatChanged} DisplayEventType;
virtual void notifyDisplayEvent(DisplayEventType evt) = 0;
};
WMMonitor();
virtual ~WMMonitor();
void setNotifier(Notifier* wmn) {notifier=wmn;}
protected:
// - Internal MsgWindow callback
virtual LRESULT processMessage(UINT msg, WPARAM wParam, LPARAM lParam);
Notifier* notifier;
};
};
};
#endif // __RFB_WIN32_WMNOTIFIER_H__