#!/usr/local/bin/python
##
#   Lines2
#   ------
#   This is another version of the lines.c program. It draws some
#   lines inside a call-back so they will not be erased by the
#   window becoming obscured.
# 
#   The setredraw function associates a redraw call-back with a
#   window, before the window is made visible by calling show.
##

from graphapp import *

def draw_it(w, r):
	A = pt(10,10)
	B = pt(10,40)
	C = pt(50,40)

	drawline(A, B)
	drawline(B, C)
	drawline(C, A)

def main():
	w = newwindow("Graphics", rect(20,20,100,80), StandardWindow)
	setredraw(w, draw_it)
	show(w)
	mainloop()

main()