{
m_hDC = ::WinOpenWindowDC(HWND_DESKTOP);
m_hPS = ::WinGetScreenPS(HWND_DESKTOP);
::GpiSetBackMix(m_hPS, BM_LEAVEALONE);
} // end of wxScreenDC::wxScreenDC()
{
m_hDC = ::WinOpenWindowDC(HWND_DESKTOP);
m_hPS = ::WinGetScreenPS(HWND_DESKTOP);
::GpiSetBackMix(m_hPS, BM_LEAVEALONE);
} // end of wxScreenDC::wxScreenDC()