[Xcb] xcb_wait_for_reply deadlocking with xcb_property_changed call

[Nicholas Allen]

>
> Ohhh. You ran "thread apply all bt full" a total of four times. That
> was very confusing. :-)
>   
Sorry - I also wasn't aware I did that ;-)
> A trivial replacement for the property library would be to issue the
> GetProperty request from your event thread, then stick the cookie on a
> queue. In another thread, loop dequeueing cookies and waiting on them.
> Really, this is only hard if you want to avoid using threads, which is
> not a problem you seem to have. :-)
>   
Thanks I'll try that...

Nick