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Transparency.h
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Transparency.h
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/*
* Virtual Dimension - a free, fast, and feature-full virtual desktop manager
* for the Microsoft Windows platform.
* Copyright (C) 2003-2008 Francois Ferrand
*
* This program 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 program 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 program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef __TRANSPARENCY_H__
#define __TRANSPARENCY_H__
#define TRANSPARENCY_DISABLED 0xff
class Transparency
{
public:
Transparency(HWND hWnd);
~Transparency();
void SetWindow(HWND hWnd);
void SetTransparencyLevel(unsigned char level, bool fade = false);
unsigned char GetTransparencyLevel() const;
static bool IsTransparencySupported();
protected:
typedef BOOL WINAPI SetLayeredWindowAttributes_t(HWND,COLORREF,BYTE,DWORD);
void ForceTransparencyLevel(unsigned char level);
void StartFade();
void StopFade();
LRESULT FadeCb(HWND, UINT, WPARAM, LPARAM);
static bool transparency_supported;
static bool transparency_supported_valid;
static SetLayeredWindowAttributes_t *SetLayeredWindowAttributes;
static HINSTANCE hinstDLL;
static int nbInstance;
HWND m_hWnd;
unsigned char m_level;
unsigned char m_curLevel;
UINT_PTR m_fadeTimer;
};
#endif /*__TRANSPARENCY_H__*/