[Tkinter-discuss] Trapping event for Toplevel()

Cameron Laird Cameron at phaseit.net
Tue Aug 7 19:54:16 CEST 2007


On Tue, Aug 07, 2007 at 11:08:30AM -0400, Gerardo Juarez wrote:
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> I would like to know if there is a way to trap the kill button event in a 
> Toplevel window. I'm having problems with a dialog which has a "Close" 
> button, but users keep closing it with the kill button (the big X at the 
> upper right corner). After such a close, the application refuses to 
> re-open the dialog, throwing instead an exception:
> 
> File "C:\PYTHON24\lib\lib-tk\Tkinter.py", line 1541, in wm_withdraw
>    return self.tk.call('wm', 'withdraw', self._w)
> TclError: bad window path name ".14221680"
> 
> My guess is that I must trap the kill event as well but I don't know how 
> to do it.
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Read about WM_DELETE_WINDOW in <URL:
http://effbot.org/tkinterbook/tkinter-events-and-bindings.htm >
or <URL:
http://www.astro.washington.edu/owen/TkinterSummary.html#ProtocolHandler >.


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