[C#]
private void flyGrid_MouseDown(object sender, MouseEventArgs e)
{
  FlyGrid grid = sender as FlyGrid;
  HitTestInfo ht = grid.GetHitTestInfoAt(e.X, e.Y);
  if ((ht.HitTest & HitTest.OnNode) != 0)
  {
    NodeBase node = ht.port.Rows.GetNodeFromRow(ht.Row);
   System.Diagnostics.Debug.WriteLine(string.Format("Down: Button:{0}, Clicks:{1}, Node:{2}, Level:{3}, Row:{4}, HitTest:{5}", e.Button, e.Clicks, node.Value, node.Depth, ht.Row, ht.HitTest));
  }
}