+ CGRect cgbounds ;
+ cgbounds = CGDisplayBounds(CGMainDisplayID());
+ Rect bounds;
+ bounds.top = (short)cgbounds.origin.y;
+ bounds.left = (short)cgbounds.origin.x;
+ bounds.bottom = bounds.top + (short)cgbounds.size.height;
+ bounds.right = bounds.left + (short)cgbounds.size.width;
+ WindowAttributes overlayAttributes = kWindowIgnoreClicksAttribute;
+ CreateNewWindow( kOverlayWindowClass, overlayAttributes, &bounds, (WindowRef*) &m_overlayWindow );
+ ShowWindow((WindowRef)m_overlayWindow);
+ SetGraphicsContext( wxGraphicsContext::CreateFromNativeWindow( m_overlayWindow ) );
+ m_width = (wxCoord)cgbounds.size.width;
+ m_height = (wxCoord)cgbounds.size.height;