memory_dc.hpp

// memory_dc.hpp

// Copyright (C) 2004 Steven Weiß (steven11@gmx.de)
//
// Permission to copy, use, sell and distribute this software is granted
// provided this copyright notice appears in all copies.
// Permission to modify the code and to distribute modified code is granted
// provided this copyright notice appears in all copies, and a notice
// that the code was modified is included with the copyright notice.
//
// This software is provided "as is" without express or implied warranty,
// and with no claim as to its suitability for any purpose.


#pragma once
#include <background_wnd/detail/include.hpp>


namespace win32 { namespace gui {

namespace bg_wnd {

class memory_dc
{
public:
     memory_dc(void);
     ~memory_dc(void);   

     operator HDC();
     
     void size(int cx, int cy);
     SIZE size() const;

     bool bitblt(HDC hDest, int x, int y, int cx, int cy, int xSrc = 0, int ySrc = 0, DWORD dwRop = SRCCOPY);
     void create_dc(HDC hDC, int cx, int cy);
     void delete_dc();   
     void swap(memory_dc& dc);

private:  
     memory_dc(const memory_dc& dc);                        // don't allow copying
     void operator= (const memory_dc& dc);

     HDC hMemDC_;
     HBITMAP hOldBitmap_;     
};

}    // namespace bg_wnd
} }  // namespace win32::gui