Whether or not the #ClutterActorMeta is enabled
The alignment factor, as a normalized value between 0.0 and 1.0
The factor depends on the #ClutterAlignConstraint:align-axis property: with an align-axis value of %CLUTTER_ALIGN_X_AXIS, 0.0 means left and 1.0 means right; with a value of %CLUTTER_ALIGN_Y_AXIS, 0.0 means top and 1.0 means bottom.
The unique name to access the #ClutterActorMeta
The #ClutterActor used as the source for the alignment.
The #ClutterActor must not be a child or a grandchild of the actor using the constraint.
The axis to be used to compute the alignment