using System;

 using System.Windows.Forms;

 using System.Runtime.InteropServices;

 using System.Diagnostics;

 using System.Text;

 using Microsoft.Win32.SafeHandles;

 using Win32;

 using System.Collections.Generic;

 namespace Hid

 {

     /// <summary>

     /// Our HID handler manages raw input registrations, processes WM_INPUT messages and broadcasts HID events in return.

     /// </summary>

     public class HidHandler

     {

         public delegate void HidEventHandler(object aSender, HidEvent aHidEvent);

         public event HidEventHandler OnHidEvent;

         public bool IsRegistered { get; private set; }

         public HidHandler(RAWINPUTDEVICE[] aRawInputDevices)

         {

             IsRegistered = Function.RegisterRawInputDevices(aRawInputDevices, (uint)aRawInputDevices.Length, (uint)Marshal.SizeOf(aRawInputDevices[0]));

         }

         public void ProcessInput(Message aMessage)

         {

             Hid.HidEvent hidEvent = new Hid.HidEvent(aMessage);

             hidEvent.DebugWrite();

             if (!hidEvent.IsValid || !hidEvent.IsGeneric)

             {

                 Debug.WriteLine("Skipping HID message.");

                 return;

             }

             //Broadcast our events

             OnHidEvent(this, hidEvent);    

         }

     }

 }