[maemo-developers] Question about the 'cross' button on the top right corner

[From: LIU Chun Hung]

Hi,

I have written a server and client program. When the user click the
'cross' button on the top right corner, the client program will close. But
the client haven't send any signal to the server. I want to add a function
which can send a signal to the server just before the client program was
closed.

So what can I do and where should I add this function?

Thanks,
Hung