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

 

[Adonis]

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

 

[Fredrik Lundh]

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

</F>

 

[Glen]

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