+#if wxMAC_USE_CORE_GRAPHICS
+ 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;
+#else
+ m_macPort = CreateNewPort() ;
+ GrafPtr port ;
+ GetPort( &port ) ;
+ SetPort( (GrafPtr) m_macPort ) ;
+ Point pt = { 0,0 } ;
+ LocalToGlobal( &pt ) ;
+ SetPort( port ) ;
+ m_deviceLocalOriginX = -pt.h ;
+ m_deviceLocalOriginY = -pt.v ;
+
+ BitMap screenBits;
+ GetQDGlobalsScreenBits( &screenBits );
+ m_minX = screenBits.bounds.left ;
+
+ SInt16 height ;
+ GetThemeMenuBarHeight( &height ) ;
+ m_minY = screenBits.bounds.top + height ;
+
+ m_maxX = screenBits.bounds.right ;
+ m_maxY = screenBits.bounds.bottom ;
+
+ MacSetRectRgn( (RgnHandle) m_macBoundaryClipRgn , m_minX , m_minY , m_maxX , m_maxY ) ;
+ OffsetRgn( (RgnHandle) m_macBoundaryClipRgn , m_deviceLocalOriginX , m_deviceLocalOriginY ) ;
+ CopyRgn( (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) m_macCurrentClipRgn ) ;
+#endif
+ m_ok = true ;