wxRect renderrect( rect.x, rect.y, rect.width, rect.height );
wxWindowDC* dc = (wxWindowDC*) cell->GetDC();
wxWindowDCImpl *impl = (wxWindowDCImpl *) dc->GetImpl();
wxRect renderrect( rect.x, rect.y, rect.width, rect.height );
wxWindowDC* dc = (wxWindowDC*) cell->GetDC();
wxWindowDCImpl *impl = (wxWindowDCImpl *) dc->GetImpl();