Can you imagine of any kind of work around? I can't really use
HIMovieView since compositions rendered this way don't accept input
keys and also, they randomly deadlock the application which is just
slightly worse than a pause when closing a menu.
You can use a QCRenderer to render the composition from a separate
thread. See the /Developer/Examples/Quartz Composer/Performer sample
code for a CVDisplayLink based case.
Be careful when accessing the QCRenderer from several threads at once
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Pierre-Olivier Latour email@hidden
Quartz Composer Team Apple Computer, Inc.