On 17 Dec 2012, at 05:58, Tamas Nagy <tamas.lov.n...@gmail.com> wrote:

> It's a live video app, where rendering happening on a CVDisplayLink thread, 
> so the app still running and do its job while an OpenPanel (or SavePanel) 
> displaying. I just need to block the UI to make sure the users can't interact 
> the app while an open panel displaying. 

But why?

What's the issue with the user pausing a video while an open panel happens to 
be open?

Thanks

Tom Davie
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