diff -r 72885c950813 -r cdc5f8f1b79e Hid/HidHandler.cs
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Hid/HidHandler.cs	Sun Mar 15 20:25:58 2015 +0100
@@ -0,0 +1,104 @@
+//
+// Copyright (C) 2014-2015 Stéphane Lenclud.
+//
+// This file is part of SharpLibHid.
+//
+// SharpDisplayManager is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// SharpDisplayManager is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with SharpDisplayManager.  If not, see <http://www.gnu.org/licenses/>.
+//
+
+
+using System;
+using System.Windows.Forms;
+using System.Runtime.InteropServices;
+using System.Diagnostics;
+using System.Text;
+using Microsoft.Win32.SafeHandles;
+using SharpLib.Win32;
+using System.Collections.Generic;
+
+
+namespace SharpLib.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;
+        List<HidEvent> iHidEvents;
+
+
+        public bool IsRegistered { get; private set; }
+
+        public HidHandler(RAWINPUTDEVICE[] aRawInputDevices)
+        {
+            iHidEvents=new List<HidEvent>();
+            IsRegistered = Function.RegisterRawInputDevices(aRawInputDevices, (uint)aRawInputDevices.Length, (uint)Marshal.SizeOf(aRawInputDevices[0]));
+        }
+
+        /// <summary>
+        /// Process a WM_INPUT message.
+        /// </summary>
+        /// <param name="aMessage"></param>
+        public void ProcessInput(ref Message aMessage)
+        {
+            if (aMessage.Msg != Const.WM_INPUT)
+            {
+                //We only process WM_INPUT messages
+                return;
+            }
+
+            HidEvent hidEvent = new HidEvent(aMessage, OnHidEventRepeat);
+            hidEvent.DebugWrite();
+
+            if (!hidEvent.IsValid || !hidEvent.IsGeneric)
+            {
+                Debug.WriteLine("Skipping HID message.");
+                return;
+            }
+
+            //
+            if (hidEvent.IsButtonUp)
+            {
+                //This is a key up event
+                //We need to discard any events belonging to the same page and collection
+                for (int i = (iHidEvents.Count-1); i >= 0; i--)
+                {
+                    if (iHidEvents[i].UsageId == hidEvent.UsageId)
+                    {
+                        iHidEvents[i].Dispose();
+                        iHidEvents.RemoveAt(i);
+                    }
+                }
+            }
+            else
+            {
+                //Keep that event until we get a key up message
+                iHidEvents.Add(hidEvent);
+            }
+
+            //Broadcast our events
+            OnHidEvent(this, hidEvent);    
+        }
+
+        public void OnHidEventRepeat(HidEvent aHidEvent)
+        {
+            //Broadcast our events
+            OnHidEvent(this, aHidEvent);    
+        }
+
+    }
+
+}
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