[Tkinter-discuss] Redefine quit menu item on Mac to quit from a Twisted/Tkinter application?
Russell E. Owen
rowen at u.washington.edu
Thu Apr 9 00:17:09 CEST 2009
In article <49DBC5C4.9050305 at codebykevin.com>,
Kevin Walzer <kw at codebykevin.com> wrote:
> Russell Owen wrote:
>
> >
> > The normal Quit menu item has always worked fine for me until I switched
> > to using Twisted framework. Now it does nothing.
>
> I wonder if it's a conflict between the Tk and Twisted event loops?
> Doesn't Twisted have its own event loop? (Never used Twisted myself.)
That is definitely the problem.
Twisted has an event loop and somehow it runs tk's event loop. The
result works just fine -- my application and tk work normally -- until
it is time to quit. That's when the trouble strikes: my application will
not quit. I suspect the heart of the problem is that halting tk's event
loop is not enough to halt Twisted's event loop.
The standard way to stop a Twisted application procedure is to halt
Twisted's event loop (it's "reactor"). Normally that is easy to do. The
problem is that MacOS X Aqua Tcl/Tk has a Quit menu item that seems
hard-coded to something directly in tk (perhaps halt the event loop) and
whatever it is, it is not enough to get Twisted's attention.
So I would like to find some way to modify the behavior of the MacOS X
Aqua Tcl/Tk Quit menu item.
-- Russell
More information about the Tkinter-discuss
mailing list