Detect TKinter window being closed?

[Glen]

Is it possible to to detect a Tkinter top-level window being closed with the
close icon/button (top right), for example to call a function before the
window actually closes?

Python 2.4 / Linux (2.6 kernel) if that makes any difference.
Any info would be greatly appreciated.
Thanks
Glen
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Re: Detect TKinter window being closed?

[Adonis]

Glen wrote:
> Is it possible to to detect a Tkinter top-level window being closed with the
> close icon/button (top right), for example to call a function before the
> window actually closes?
> 
> Python 2.4 / Linux (2.6 kernel) if that makes any difference.
> Any info would be greatly appreciated.
> Thanks
> Glen

Here is an example code taken from:
http://www.pythonware.com/library/tkinter/introduction/events-and-bindings.htm
(located at very end)

Example 7-2. Capturing destroy events

# File: protocol1.py

from Tkinter import *
import tkMessageBox

def callback():
 if tkMessageBox.askokcancel("Quit", "Do you really wish to quit?"):
 root.destroy()

root = Tk()
root.protocol("WM_DELETE_WINDOW", callback)

root.mainloop()

Hope this helps.

Adonis
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Re: Detect TKinter window being closed?

[Fredrik Lundh]

Glen wrote:

> Is it possible to to detect a Tkinter top-level window being closed with the
> close icon/button (top right), for example to call a function before the
> window actually closes?

http://effbot.org/tkinterbook/tkinter-events-and-bindings.htm#protocols

 



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Re: Detect TKinter window being closed?

[Glen]

Thanks Fredrik and Adonis that's just what I needed, plus a bit more to
learn about.

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