Demo/tkinter/guido/imagedraw.py

   1 """Draw on top of an image"""
   2
   3 from Tkinter import *
   4 import sys
   5
   6 def main():
   7     filename = sys.argv[1]
   8     root = Tk()
   9     img = PhotoImage(file=filename)
  10     w, h = img.width(), img.height()
  11     canv = Canvas(root, width=w, height=h)
  12     canv.create_image(0, 0, anchor=NW, image=img)
  13     canv.pack()
  14     canv.bind('<Button-1>', blob)
  15     root.mainloop()
  16
  17 def blob(event):
  18     x, y = event.x, event.y
  19     canv = event.widget
  20     r = 5
  21     canv.create_oval(x-r, y-r, x+r, y+r, fill='red', outline="")
  22
  23 main()