[Qt] QApplication::notify: Unexpected null receiver

[zeljko at holobit.net]

Quoting ????? ?????? <webpirat at mail.ru>:

> Hello, Items specific to the Qt widget set
>
> Sorry, I have not searched deeply, but it is seems to me that this
> message is generated b bindings. After that message my qt applications
> usually crash. I just want to know:
> - reason of message
> - how to prevent
> - if it is not possible to prevent then how to workaround crash

1.can you provide any test case about this / which control crashes app ?
2.any gdb backtrace ?

I havent seen this message till early days of qt bindings (under linux).
eg. we had bug when you click with right mouse button on to ttreeview  
it crashes app and there's your message, or eg. we just called  
QWidget_destroy(OurWidgetHandle) and boooom (really early days of  
bindings) some QEvent still processing,but handle is dead, or eg.  
WideString problem we had about 1-2 months ago.
If I can reproduce this message, I'll find all answers to your question.

zeljko