I am trying to use graphics.py to write a user graphics interface. The problem is that how can I capture the right click event? It seems that the function getMouse() could just returns where the mouse was left-clicked as a Point object.

    from graphics import *
    def main():
        win = GraphWin("My Circle", 100, 100)
        c = Circle(Point(50,50), 10)
        c.draw(win)
        win.getMouse() # pause for click in window
        win.close()
     main()

I want to know how can I capture the right-click event in the window, thanks.