WinFormsにて、ファンクションキーの既定の動作を握りつぶす方法

Form1.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_KeyDown(object sender, KeyEventArgs e)
        {
            if (Keys.F1 <= e.KeyCode && e.KeyCode <= Keys.F12)
            {
                this.Text = e.KeyCode.ToString() + " Pressed!";

                // ファンクションキーの基底の動作を握り潰す
                e.Handled = true;
            }
        }
    }
}