The play-selection setting; the value for this key is of type NSNumber, interpreted as a BOOL. This value is YES if the movie will play only the current selection.
This attribute can be read and written. This attribute can be read and written when the movie has been initialized with QTMovieOpenForPlaybackAttribute set to YES.
Available in Mac OS X v10.4 and later.
Declaration Syntax Version Information- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)