Problem with threads

Hi!

Consider the following case:
I create a window with a button inside.
I create a thread that contains an endless loop which updates the button's 
caption periodically.
When I close the window, I get an exception (null pointer in wx-native code) 
which is 100% correct because by the time I call the button.text (or 
whatever), the button does not exist.

I know I have to stop the thread first but the problem is that I don't know 
how to do it (WHERE to do it). I've tried the wx.Window.Closing event and it 
didn't help. No luck with wx.Window.Dispose or destructor either. What is the 
preffered way of postponing the window deletion until I'm finished with my 
stuff?

Thanks for any help...
Radek Podgorny

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