How to detect windows shutdown

[Austin]

I wrote a GUI program with wxPython.
The error message is:

Unhandled exception
An unhandled exception occured. Press "Abort" to terminate the program, 
"Retry" to exit the program normally and "Ignore" to try to continue.

Actually, besides the main program, there is another thread running 
background.




> Austin wrote:
>> I wrote a program running on windows.
>> I put the link of the program in "Start up" folder and let it executed 
>> minimized.
>> Every time when I open the computer, my program will be running in system 
>> tray.
>>
>> But if the user would like to shutdown the computer, the OS will show an 
>> error about exception.
>
> Important missing information:  is this a GUI program or
> a console program, and if it's a GUI program, what framework
> did you use to write it (wxPython, PyQt, other...)?  Also,
> what is the exception that you got?  (Always report the
> specific error: we can't guess what exception you got,
> and the answer could well point directly to a cause that
> is different than you think it is.)
>
> -Peter