Qt_widget is the base widget class that CGAL provide as support for 2D CGAL users.
CGAL::Qt_widget
CGAL::Qt_widget_layer
CGAL::Qt_widget_standard_toolbar
CGAL::Qt_widget_history
CGAL::Qt_help_window
CGAL::Qt_widget_get_point<T>
CGAL::Qt_widget_get_segment<T>
CGAL::Qt_widget_get_line<T>
CGAL::Qt_widget_get_circle<T>
CGAL::Qt_widget_get_iso_rectangle<T>
CGAL::Qt_widget_get_polygon<Polygon>
CGAL::Qt_widget_get_simple_polygon<Polygon>