+ m_macPort = CreateNewPort() ;
+ GrafPtr port ;
+ GetPort( &port ) ;
+ SetPort( (GrafPtr) m_macPort ) ;
+ Point pt = { 0,0 } ;
+ LocalToGlobal( &pt ) ;
+ SetPort( port ) ;
+ m_macLocalOrigin.x = -pt.h ;
+ m_macLocalOrigin.y = -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_macLocalOrigin.x , m_macLocalOrigin.y ) ;
+ CopyRgn( (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) m_macCurrentClipRgn ) ;