[Tutor] click and line

[Chris F.A. Johnson]

On Sun, 6 Nov 2005, Shi Mu wrote:

> based on the following rewritten code, why the lines still can not be
> drawn? (there is no error report and the canvas appears).

     It works for me.


> from Tkinter import *
>
> root = Tk()
>
> c = Canvas(root, bg='#0e2e0e', height=500, width=1000)
>
> lastX=""
> lastY=""
> def click(event):
>  global lastX, lastY
>  if lastX != "":
>     c.create_line(lastX,lastY,event.x,event.y,fill="white")
>  lastX = event.x
>  lastY = event.y
>
> frame = c
> c.bind('<Button-1>',click)
>
> c.pack()
>
> root.mainloop()

-- 
     Chris F.A. Johnson                     <http://cfaj.freeshell.org>
     ==================================================================
     Shell Scripting Recipes: A Problem-Solution Approach, 2005, Apress
     <http://www.torfree.net/~chris/books/cfaj/ssr.html>