private void InvokeReferencePointUpdatedEvent(ReferencePoint updatedReferencePoint, TrackingState previousTrackingState, Pose previousPose)
 {
     if (ReferencePointUpdated != null)
     {
         ReferencePointUpdated(new ReferencePointUpdatedEventArgs()
         {
             ReferencePoint        = updatedReferencePoint,
             PreviousTrackingState = previousTrackingState,
             PreviousPose          = previousPose
         });
     }
 }
 public extern bool TryGetReferencePoint(TrackableId referencePointId, out ReferencePoint referencePoint);