Constraint constraint = Constraint::New<Vector3>( mSourceActor, Actor::Property::POSITION, EqualToConstraint() );
constraint.AddSource( Source( self, Toolkit::Magnifier::Property::SOURCE_POSITION ) );
constraint.Apply();
Constraint constraint = Constraint::New<Vector3>( mSourceActor, Actor::Property::POSITION, EqualToConstraint() );
constraint.AddSource( Source( self, Toolkit::Magnifier::Property::SOURCE_POSITION ) );
constraint.Apply();