CAMERA = tst r = show_panel(tst) def get_point(name): m = show_message("Click at point:" + name, title = "Calibration", blocking = False) return r.waitClick(100000) p1 = get_point("p1") p2 = get_point("p2") p3 = get_point("p3") p4 = get_point("p4") print p1, p2, p3, p4