private void bt_MoveYMinus_PreviewMouseDown(object sender, MouseButtonEventArgs e)
        {
            ComboBoxItem typeItem = (ComboBoxItem)dd_distance.SelectedItem;
            string       value    = typeItem.Content.ToString();
            double       jogspeed = double.Parse(typeItem.Content.ToString());

            _kflop.JogAxis("Y", -jogspeed);
        }
 private void OnButtonKeyUp(object sender, KeyEventArgs e)
 {
     _kflop.JogAxis("X", 0);
     _kflop.JogAxis("Y", 0);
     _kflop.JogAxis("Z", 0);
     _kflop.JogAxis("A", 0);
     _kflop.JogAxis("B", 0);
     _kflop.JogAxis("C", 0);
 }