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wxWidgets/src/msw/dcscreen.cpp

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/////////////////////////////////////////////////////////////////////////////
// Name: src/msw/dcscreen.cpp
// Purpose: wxScreenDC class
// Author: Julian Smart
// Modified by:
// Created: 01/02/97
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#include "wx/msw/dcscreen.h"
#ifndef WX_PRECOMP
#include "wx/string.h"
#include "wx/window.h"
#endif
#include "wx/msw/private.h"
wxIMPLEMENT_ABSTRACT_CLASS(wxScreenDCImpl, wxMSWDCImpl);
// Create a DC representing the whole virtual screen (all monitors)
wxScreenDCImpl::wxScreenDCImpl( wxScreenDC *owner ) :
wxMSWDCImpl( owner )
{
m_hDC = (WXHDC) ::GetDC((HWND) NULL);
// the background mode is only used for text background and is set in
// DrawText() to OPAQUE as required, otherwise always TRANSPARENT
::SetBkMode( GetHdc(), TRANSPARENT );
}
// Return the size of the whole virtual screen (all monitors)
void wxScreenDCImpl::DoGetSize(int *width, int *height) const
{
if ( width )
*width = ::GetSystemMetrics(SM_CXVIRTUALSCREEN);
if ( height )
*height = ::GetSystemMetrics(SM_CYVIRTUALSCREEN);
}