SectRgn( m_macBoundaryClipRgn , window->MacGetVisibleRegion().GetWXHRGN() , m_macBoundaryClipRgn ) ;
OffsetRgn( m_macBoundaryClipRgn , -origin.x , -origin.y ) ;
SectRgn( m_macBoundaryClipRgn , window->GetUpdateRegion().GetWXHRGN() , m_macBoundaryClipRgn ) ;
OffsetRgn( m_macBoundaryClipRgn , m_macLocalOrigin.h , m_macLocalOrigin.v ) ;
CopyRgn( m_macBoundaryClipRgn , m_macCurrentClipRgn ) ;
m_macPort = UMAGetWindowPort( windowref ) ;
SectRgn( m_macBoundaryClipRgn , window->MacGetVisibleRegion().GetWXHRGN() , m_macBoundaryClipRgn ) ;
OffsetRgn( m_macBoundaryClipRgn , -origin.x , -origin.y ) ;
SectRgn( m_macBoundaryClipRgn , window->GetUpdateRegion().GetWXHRGN() , m_macBoundaryClipRgn ) ;
OffsetRgn( m_macBoundaryClipRgn , m_macLocalOrigin.h , m_macLocalOrigin.v ) ;
CopyRgn( m_macBoundaryClipRgn , m_macCurrentClipRgn ) ;
m_macPort = UMAGetWindowPort( windowref ) ;