Resolve circular reference

[Stefan Behnel]

moerchendiser2k3, 10.01.2011 18:55:
>> If you can tell us why it's so important that the object be destroyed
>> at that given time, even while a reference to it exists, maybe we can
>> give you better suggestions.
>
> Thanks for your answer! In my case the types A and B (in my example
> above)
> are a dialog and a dialog widget. At a special time I have to close
> and
> destroy all dialogs but this does not happen because the widget keeps
> the dialog alive. I have the reference to the dialog
> but after I closed the dialogs I also would like to destroy them
> because they have to free some special ressources.

Objects within a reference cycle will eventually get cleaned up, just not 
right away and not in a predictable order.

If you need immediate cleanup, you should destroy the reference cycle 
yourself, e.g. by removing the widgets from the dialog when closing it.

Stefan