//

 // 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.Drawing;

 using System.Collections;

 using System.ComponentModel;

 using System.Windows.Forms;

 using System.Data;

 using System.Diagnostics;

 using System.Runtime.InteropServices;

 using SharpLib.Hid;

 using SharpLib.Win32;

 namespace HidDemo

 {

 	/// <summary>

 	/// Summary description for Form1.

 	/// </summary>

 	public partial class MainForm : System.Windows.Forms.Form

 	{

 	    private HidHandler iHidHandler;

         public delegate void OnHidEventDelegate(object aSender, SharpLib.Hid.HidEvent aHidEvent);

 		public MainForm()

 		{

 			// Required for Windows Form Designer support

 			InitializeComponent();           

 		}

 		/// <summary>

 		/// The main entry point for the application.

 		/// </summary>

 		[STAThread]

 		static void Main()

 		{

             Application.EnableVisualStyles();

 			Application.Run(new MainForm());

 		}

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

         {

             RegisterHidDevices();

             //Create our list of HID devices

             SharpLib.Win32.RawInput.PopulateDeviceList(treeViewDevices);

 		}

 	    void RegisterHidDevices()

 	    {           

             // Register the input device to receive the commands from the

             // remote device. See http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnwmt/html/remote_control.asp

             // for the vendor defined usage page.

             RAWINPUTDEVICE[] rid = new RAWINPUTDEVICE[6];

             int i = 0;

             rid[i].usUsagePage = (ushort)SharpLib.Hid.UsagePage.WindowsMediaCenterRemoteControl;

             rid[i].usUsage = (ushort)SharpLib.Hid.UsageCollection.WindowsMediaCenter.WindowsMediaCenterRemoteControl;

             rid[i].dwFlags = Const.RIDEV_EXINPUTSINK;

             rid[i].hwndTarget = Handle;

             i++;

             rid[i].usUsagePage = (ushort)SharpLib.Hid.UsagePage.Consumer;

             rid[i].usUsage = (ushort)SharpLib.Hid.UsageCollection.Consumer.ConsumerControl;

             rid[i].dwFlags = Const.RIDEV_EXINPUTSINK;

             rid[i].hwndTarget = Handle;

             i++;

             rid[i].usUsagePage = (ushort)SharpLib.Hid.UsagePage.Consumer;

             rid[i].usUsage = (ushort)SharpLib.Hid.UsageCollection.Consumer.Selection;

             rid[i].dwFlags = Const.RIDEV_EXINPUTSINK;

             rid[i].hwndTarget = Handle;

             i++;

             rid[i].usUsagePage = (ushort)SharpLib.Hid.UsagePage.GenericDesktopControls;

             rid[i].usUsage = (ushort)SharpLib.Hid.UsageCollection.GenericDesktop.SystemControl;

             rid[i].dwFlags = Const.RIDEV_EXINPUTSINK;

             rid[i].hwndTarget = Handle;

             i++;

             rid[i].usUsagePage = (ushort)SharpLib.Hid.UsagePage.GenericDesktopControls;

             rid[i].usUsage = (ushort)SharpLib.Hid.UsageCollection.GenericDesktop.GamePad;

             rid[i].dwFlags = Const.RIDEV_EXINPUTSINK;

             rid[i].hwndTarget = Handle;

             i++;

             rid[i].usUsagePage = (ushort)SharpLib.Hid.UsagePage.GenericDesktopControls;

             rid[i].usUsage = (ushort)SharpLib.Hid.UsageCollection.GenericDesktop.Keyboard;

             //rid[i].dwFlags = Const.RIDEV_EXINPUTSINK;

             rid[i].hwndTarget = Handle;

             //i++;

             //rid[i].usUsagePage = (ushort)Hid.UsagePage.GenericDesktopControls;

             //rid[i].usUsage = (ushort)Hid.UsageCollection.GenericDesktop.Mouse;

             //rid[i].dwFlags = Const.RIDEV_EXINPUTSINK;

             //rid[i].hwndTarget = aHWND;

             iHidHandler = new SharpLib.Hid.HidHandler(rid);

             if (!iHidHandler.IsRegistered)

             {

                 Debug.WriteLine("Failed to register raw input devices: " + Marshal.GetLastWin32Error().ToString());

             }

             iHidHandler.OnHidEvent += HandleHidEventThreadSafe;

 	    }

         public void HandleHidEventThreadSafe(object aSender, SharpLib.Hid.HidEvent aHidEvent)

         {

             if (aHidEvent.IsStray)

             {

                 //Stray event just ignore it

                 return;

             }

             if (this.InvokeRequired)

             {

                 //Not in the proper thread, invoke ourselves

                 OnHidEventDelegate d = new OnHidEventDelegate(HandleHidEventThreadSafe);

                 this.Invoke(d, new object[] { aSender, aHidEvent });

             }

             else

             {

                 //We are in the proper thread

                 listViewEvents.Items.Insert(0, aHidEvent.ToListViewItem());

                 toolStripStatusLabelDevice.Text = aHidEvent.Device.FriendlyName;

             }

         }

 		protected override void WndProc(ref Message message)

 		{

             switch (message.Msg)

             {

                 case Const.WM_KEYDOWN:

                     //ProcessKeyDown(message.WParam);

                     break;

                 case Const.WM_INPUT:

                     //Returning zero means we processed that message.

                     message.Result = new IntPtr(0);

                     iHidHandler.ProcessInput(ref message);

                     break;

             }

             //Is that needed? Check the docs.

 			base.WndProc(ref message);

 		}

 		private void buttonClear_Click(object sender, EventArgs e)

 		{

 			listViewEvents.Items.Clear();

 		}

         private void buttonTreeViewCollapseAll_Click(object sender, EventArgs e)

         {

             treeViewDevices.CollapseAll();            

         }

         private void buttonTreeViewExpandAll_Click(object sender, EventArgs e)

         {

             treeViewDevices.ExpandAll();

         }

         private void buttonRefresh_Click(object sender, EventArgs e)

         {

             treeViewDevices.Nodes.Clear();

             SharpLib.Win32.RawInput.PopulateDeviceList(treeViewDevices);

         }

 	}

 }