private void OnPreviewMouseWheel(object sender, MouseWheelEventArgs e)
 {
     if (e.Delta > 0)
     {
         //ConsoleTextBox.ScrollToVerticalOffset(ConsoleTextBox.VerticalOffset + 1);
         ConsoleTextBox.LineUp();
     }
     else
     {
         ConsoleTextBox.LineDown();
     }
     // ConsoleTextBox.ScrollToVerticalOffset(ConsoleTextBox.VerticalOffset - 1);
     e.Handled = true;
 }