m_graphicContext = new wxMacCGContext( (CGrafPtr) m_macPort ) ;
m_graphicContext->SetPen( m_pen ) ;
m_graphicContext->SetBrush( m_brush ) ;
m_graphicContext = new wxMacCGContext( (CGrafPtr) m_macPort ) ;
m_graphicContext->SetPen( m_pen ) ;
m_graphicContext->SetBrush( m_brush ) ;