You've probably noticed that the "Home" key press is not possible to catch in either of the Key event handles of the Form or Control. The solution to that will be to use the RegisterHotKey API in conjunction with MessageWindow:

using System;

using Microsoft.WindowsCE.Forms;

using System.Windows.Forms;

using System.Runtime.InteropServices;

public class MessageWin : MessageWindow

{

    //event for client

    public System.EventHandler HomeKeyPress;

    public MessageWin()

    {

       //register to listen for home key

       RegisterHotKey(this.Hwnd, VK_LWIN, 8, VK_LWIN);

    }

    ~MessageWin()

    {

       Unregister();

    }

    protected override void WndProc(ref Message m)

    {

       if (m.Msg == WM_HOTKEY)

       {

          if ((int)m.WParam == VK_LWIN)

             //Raise event

             if (HomeKeyPress!=null)

                   HomeKeyPress(this, null);

       }

       base.WndProc (ref m);

    }

  #region P/Invokes

    private const int VK_LWIN    =    0x5B;

    private const int WM_HOTKEY   =      0x0312;

    [DllImport("coredll.dll")]

    public static extern bool RegisterHotKey(

         IntPtr hWnd, // handle to window

         int id, // hot key identifier

         int Modifiers, // key-modifier options

         int key //virtual-key code);

    [DllImport("coredll.dll")]

    public static extern bool UnregisterHotKey(

         IntPtr      hWnd,

         int         id);

   #endregion

 }

The usage of this class should be pretty obviouse:

MessageWin  msgWin = new MessageWin();

msgWin.HomeKeyPress+=new EventHandler(msgWin_HomeKeyPress);

…

private void msgWin_HomeKeyPress(object sender, System.EventArgs e)

{

      MessageBox.Show("Home Key Pressed.");

}