private void OnMouseWheel(object sender, MouseWheelEventArgs e)
 {
     if (e.Delta > 0)
     {
         ConsoleTextBox.ScrollToVerticalOffset(ConsoleTextBox.VerticalOffset + 1);
     }
     else
     {
         ConsoleTextBox.ScrollToVerticalOffset(ConsoleTextBox.VerticalOffset - 1);
     }
 }