from enthought.enable.api import OverlayContainer, Compass, Window from enthought.enable.example_support import demo_main, DemoFrame class MyFrame(DemoFrame): def _create_window(self): compass = Compass(scale=2, color="blue", clicked_color="red") container = OverlayContainer() container.add(compass) compass.on_trait_change(self._arrow_printer, "clicked") self.compass = compass return Window(self, component=container) def _arrow_printer(self): print "Clicked:", self.compass.clicked if __name__ == "__main__": demo_main(MyFrame, title="Slider example")