Lately I've noticed that Quartz Composer documents are "pausing"
for a short time while a menu is opening or while a menu is closing
in the application playing the document. This happens in my QCViews
and within the Quartz Composer application itself. I've noticed,
however, this does not happen when playing a Quartz Composer
document via HIMovieView.
Is there anyway to work around this? I'm not even too sure why it
is happening to QCView and not HIMovieView. The pause is very
noticeable on menu closes as it's paused during the entire menu
fade-out.
I tested and observed it too: there's indeed a slight pause when the
menu disappears. It works fine when the menu appears of stays down too.
HIMovieView renders QC using a separate thread, so it's not affected
at all by what happens on the application's main thread like menu
events.
The QCView uses a NSTimer running the main thread which is configured
to keep running when menus are down.
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Pierre-Olivier Latour email@hidden
Quartz Composer Team Apple Computer, Inc.