Libpurple request events

[Benjamin Arnaud]

Hey there, I'm developping a Qt client based on libpurple.

I'm getting closer to the BETA 1 release and I'm solving my warnings and 
asserts.

I have several of those with libpurple :
CRITICAL **: purple_request_close_width_handle: assertion 'handle != NULL' 
failed
CRITICAL **: purple_notify_close_width_handle: assertion 'handle != NULL' 
failed

I assume this is because I'm catching those event and returning NULL, since 
I'm operating some action internaly without prompting the user with a dialog 
interface.
What am I suppose to return to avoid that CRITICAL assert ?

Thanks.
Mr Arnaud.