Indicates whether the QTMovie will be used only for playback (NSNumberYES) or not (NSNumberNO).

Set this attribute to an NSNumber wrapping YES to indicate that you intend to use movie playback methods (such as -play or -stop, or corresponding movie view methods such as -play: or -pause:) to control the movie, but do not intend to use other methods that edit, export, or in any way modify the movie. Knowing that you need playback services only may allow QTMovie to use more efficient code paths for some media files.

This attribute is meaningful only when added to the dictionary passed to -initWithAttributes:error:. In particular, setting this attribute on a QTMovie object that is already open has no effect.

Declared in QTMovie.h.

Mac OS X v10.6 and later; QuickTime 7.6.3 and later.