// m_hDC = (WXHDC) ::GetDCEx((HWND) the_canvas->GetHWND(), NULL, DCX_WINDOW);
m_hDC = (WXHDC) ::GetWindowDC((HWND) the_canvas->GetHWND() );
m_hDCCount ++;
// m_hDC = (WXHDC) ::GetDCEx((HWND) the_canvas->GetHWND(), NULL, DCX_WINDOW);
m_hDC = (WXHDC) ::GetWindowDC((HWND) the_canvas->GetHWND() );
m_hDCCount ++;