An NSValue interpreted as a ComponentInstance for the legacy sequence grabber component used by the device. Some older devices are opened and controlled by legacy Sequence Grabber components. Applications that need to configure legacy devices directly through the Sequence Grabber configuration dialog can access an open component instance with this attribute.

This string value can be used in key paths for key-value coding, key-value observing, and bindings.

If the device is being used in a capture session, do not modify properties of the returned Sequence Grabber component (by displaying the configuration dialog, for example) while the session is running. Doing so will prevent the capture session from capturing more frames.

Available in Mac OS X v10.5 and later.