A QTMovieLayer "starts" when you call [QTMovie play] on the movie you
initialized the layer with. What "specs" make the claim that a
QTMovieLayer starts automatically? A QCCompositionLayer does start
automatically. If your composition is not playing, check it in Quartz
Composer first and make sure it plays there.
I can help more if you provide some code. I wrote a blog post on how
to use QCCompositionLayer. You can see it here:
http://www.cimgf.com/2008/09/24/core-animation-tutorial-core-animation-and-quartz-composer-qccompositionlayer/
-Matt
On Jan 2, 2009, at 11:34 AM, Gordon Apple wrote:
The specs claim that both QTMovieLayer and QCCompositionLayer start
automatically. They don't. I have to explicitly start Movies and I
haven't
figured out yet how to start a QCCompositionLayer. I get the
initial image
in a QCCompositionLayer, but no play. How do you start it?
A related question (also posted in the QC Forum) is how can you
tell
when a composition finishes (if it does)?
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