Code

	  private void OnDiagramHitTestAdjustmentHandles(object sender, HitTestEventArgs e)
	  {
		if (e.Item == null || e.Item.GetType() != typeof(TPDENode)) return;
		TPDENode node = e.Item as TPDENode;
		if (node.Type == NodeType.SimpleProcess && node.Bounds.Contains(e.MousePosition))
		{
		    bool bOverAnchorPoint = false;
		    foreach (AnchorPoint pnt in node.AnchorPattern.Points)
		    {
			  if (pnt.IsMouseOver)
			  {
				bOverAnchorPoint = true;
				break;
			  }
		    }
		    if (!bOverAnchorPoint) e.HitResult = 8;
		    else if (node.Bounds.TopLeft == e.MousePosition) e.HitResult = 0;
		    else if (node.Bounds.TopRight == e.MousePosition) e.HitResult = 1;
		    else if (node.Bounds.BottomLeft == e.MousePosition) e.HitResult = 2;
		    else if (node.Bounds.BottomRight == e.MousePosition) e.HitResult = 3;
		    else e.HitResult = -1;
		}
	  }