StephaneLenclud@125: using System;
StephaneLenclud@126: using System.IO;
StephaneLenclud@125: using System.Collections.Generic;
StephaneLenclud@125: using System.Linq;
StephaneLenclud@125: using System.Text;
StephaneLenclud@125: using System.Threading.Tasks;
StephaneLenclud@125: using System.Diagnostics;
StephaneLenclud@125: using System.Runtime.InteropServices;
StephaneLenclud@125: using System.Windows.Forms;
StephaneLenclud@125: //
StephaneLenclud@125: using Hid = SharpLib.Hid;
StephaneLenclud@125: using SharpLib.Win32;
StephaneLenclud@125: 
StephaneLenclud@125: namespace SharpDisplayManager
StephaneLenclud@125: {
StephaneLenclud@138:     /// <summary>
StephaneLenclud@138:     /// Implement handling of HID input reports notably to be able to launch an application using the Green Start button from IR remotes.
StephaneLenclud@138:     /// </summary>
StephaneLenclud@131:     [System.ComponentModel.DesignerCategory("Code")]
StephaneLenclud@131:     public class MainFormHid : Form
StephaneLenclud@131:     {
StephaneLenclud@131:         [System.Runtime.InteropServices.DllImportAttribute("user32.dll", EntryPoint = "SwitchToThisWindow")]
StephaneLenclud@131:         public static extern void SwitchToThisWindow([System.Runtime.InteropServices.InAttribute()] System.IntPtr hwnd, [System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)] bool fUnknown);
StephaneLenclud@131:         //
StephaneLenclud@131:         public delegate void OnHidEventDelegate(object aSender, Hid.Event aHidEvent);
StephaneLenclud@126: 
StephaneLenclud@131:         /// <summary>
StephaneLenclud@131:         /// Use notably to handle green start key from IR remote control
StephaneLenclud@131:         /// </summary>
StephaneLenclud@131:         private Hid.Handler iHidHandler;
StephaneLenclud@126: 
StephaneLenclud@131:         /// <summary>
StephaneLenclud@131:         /// Register HID devices so that we receive corresponding WM_INPUT messages.
StephaneLenclud@131:         /// </summary>
StephaneLenclud@131:         protected void RegisterHidDevices()
StephaneLenclud@131:         {
StephaneLenclud@131:             // Register the input device to receive the commands from the
StephaneLenclud@131:             // remote device. See http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnwmt/html/remote_control.asp
StephaneLenclud@131:             // for the vendor defined usage page.
StephaneLenclud@128: 
StephaneLenclud@131:             RAWINPUTDEVICE[] rid = new RAWINPUTDEVICE[5];
StephaneLenclud@128: 
StephaneLenclud@131:             int i = 0;
StephaneLenclud@131:             rid[i].usUsagePage = (ushort)SharpLib.Hid.UsagePage.WindowsMediaCenterRemoteControl;
StephaneLenclud@131:             rid[i].usUsage = (ushort)SharpLib.Hid.UsageCollection.WindowsMediaCenter.WindowsMediaCenterRemoteControl;
StephaneLenclud@131:             rid[i].dwFlags = Const.RIDEV_INPUTSINK;
StephaneLenclud@131:             rid[i].hwndTarget = Handle;
StephaneLenclud@128: 
StephaneLenclud@131:             i++;
StephaneLenclud@131:             rid[i].usUsagePage = (ushort)SharpLib.Hid.UsagePage.Consumer;
StephaneLenclud@131:             rid[i].usUsage = (ushort)SharpLib.Hid.UsageCollection.Consumer.ConsumerControl;
StephaneLenclud@131:             rid[i].dwFlags = Const.RIDEV_INPUTSINK;
StephaneLenclud@131:             rid[i].hwndTarget = Handle;
StephaneLenclud@126: 
StephaneLenclud@131:             i++;
StephaneLenclud@131:             rid[i].usUsagePage = (ushort)SharpLib.Hid.UsagePage.Consumer;
StephaneLenclud@131:             rid[i].usUsage = (ushort)SharpLib.Hid.UsageCollection.Consumer.Selection;
StephaneLenclud@131:             rid[i].dwFlags = Const.RIDEV_INPUTSINK;
StephaneLenclud@131:             rid[i].hwndTarget = Handle;
StephaneLenclud@125: 
StephaneLenclud@131:             i++;
StephaneLenclud@131:             rid[i].usUsagePage = (ushort)SharpLib.Hid.UsagePage.GenericDesktopControls;
StephaneLenclud@131:             rid[i].usUsage = (ushort)SharpLib.Hid.UsageCollection.GenericDesktop.SystemControl;
StephaneLenclud@131:             rid[i].dwFlags = Const.RIDEV_INPUTSINK;
StephaneLenclud@131:             rid[i].hwndTarget = Handle;
StephaneLenclud@125: 
StephaneLenclud@131:             i++;
StephaneLenclud@131:             rid[i].usUsagePage = (ushort)SharpLib.Hid.UsagePage.GenericDesktopControls;
StephaneLenclud@131:             rid[i].usUsage = (ushort)SharpLib.Hid.UsageCollection.GenericDesktop.GamePad;
StephaneLenclud@131:             rid[i].dwFlags = Const.RIDEV_INPUTSINK;
StephaneLenclud@131:             rid[i].hwndTarget = Handle;
StephaneLenclud@125: 
StephaneLenclud@131:             //i++;
StephaneLenclud@131:             //rid[i].usUsagePage = (ushort)SharpLib.Hid.UsagePage.GenericDesktopControls;
StephaneLenclud@131:             //rid[i].usUsage = (ushort)SharpLib.Hid.UsageCollection.GenericDesktop.Keyboard;
StephaneLenclud@131:             //rid[i].dwFlags = Const.RIDEV_EXINPUTSINK;
StephaneLenclud@131:             //rid[i].hwndTarget = Handle;
StephaneLenclud@125: 
StephaneLenclud@131:             //i++;
StephaneLenclud@131:             //rid[i].usUsagePage = (ushort)Hid.UsagePage.GenericDesktopControls;
StephaneLenclud@131:             //rid[i].usUsage = (ushort)Hid.UsageCollection.GenericDesktop.Mouse;
StephaneLenclud@131:             //rid[i].dwFlags = Const.RIDEV_EXINPUTSINK;
StephaneLenclud@131:             //rid[i].hwndTarget = aHWND;
StephaneLenclud@125: 
StephaneLenclud@125: 
StephaneLenclud@131:             iHidHandler = new SharpLib.Hid.Handler(rid);
StephaneLenclud@131:             if (!iHidHandler.IsRegistered)
StephaneLenclud@131:             {
StephaneLenclud@131:                 Debug.WriteLine("Failed to register raw input devices: " + Marshal.GetLastWin32Error().ToString());
StephaneLenclud@131:             }
StephaneLenclud@131:             iHidHandler.OnHidEvent += HandleHidEventThreadSafe;
StephaneLenclud@131:         }
StephaneLenclud@125: 
StephaneLenclud@131:         /// <summary>
StephaneLenclud@131:         /// Here we receive HID events from our HID library.
StephaneLenclud@131:         /// </summary>
StephaneLenclud@131:         /// <param name="aSender"></param>
StephaneLenclud@131:         /// <param name="aHidEvent"></param>
StephaneLenclud@131:         public void HandleHidEventThreadSafe(object aSender, SharpLib.Hid.Event aHidEvent)
StephaneLenclud@131:         {
StephaneLenclud@131:             if (aHidEvent.IsStray)
StephaneLenclud@131:             {
StephaneLenclud@131:                 //Stray event just ignore it
StephaneLenclud@131:                 return;
StephaneLenclud@131:             }
StephaneLenclud@125: 
StephaneLenclud@131:             if (this.InvokeRequired)
StephaneLenclud@131:             {
StephaneLenclud@131:                 //Not in the proper thread, invoke ourselves
StephaneLenclud@131:                 OnHidEventDelegate d = new OnHidEventDelegate(HandleHidEventThreadSafe);
StephaneLenclud@131:                 this.Invoke(d, new object[] { aSender, aHidEvent });
StephaneLenclud@131:             }
StephaneLenclud@131:             else
StephaneLenclud@131:             {
StephaneLenclud@131:                 //We are in the proper thread
StephaneLenclud@131:                 if (aHidEvent.Usages.Count > 0
StephaneLenclud@131:                     && aHidEvent.UsagePage == (ushort)Hid.UsagePage.WindowsMediaCenterRemoteControl
StephaneLenclud@131:                     && aHidEvent.Usages[0] == (ushort)Hid.Usage.WindowsMediaCenterRemoteControl.GreenStart)
StephaneLenclud@131:                 //&& aHidEvent.UsagePage == (ushort)Hid.UsagePage.Consumer
StephaneLenclud@131:                 //&& aHidEvent.Usages[0] == (ushort)Hid.Usage.ConsumerControl.ThinkPadFullscreenMagnifier)
StephaneLenclud@131:                 {
StephaneLenclud@131:                     //First check if the process we want to launch already exists
StephaneLenclud@131:                     string procName = Path.GetFileNameWithoutExtension(Properties.Settings.Default.StartFileName);
StephaneLenclud@131:                     Process[] existingProcesses = Process.GetProcessesByName(procName);
StephaneLenclud@131:                     if (existingProcesses == null || existingProcesses.Length == 0)
StephaneLenclud@131:                     {
StephaneLenclud@131:                         // Process do not exists just try to launch it
StephaneLenclud@131:                         ProcessStartInfo start = new ProcessStartInfo();
StephaneLenclud@131:                         // Enter in the command line arguments, everything you would enter after the executable name itself
StephaneLenclud@131:                         //start.Arguments = arguments; 
StephaneLenclud@131:                         // Enter the executable to run, including the complete path
StephaneLenclud@131:                         start.FileName = Properties.Settings.Default.StartFileName;
StephaneLenclud@131:                         start.WindowStyle = ProcessWindowStyle.Normal;
StephaneLenclud@131:                         start.CreateNoWindow = true;
StephaneLenclud@131:                         start.UseShellExecute = true;
StephaneLenclud@131:                         // Run the external process & wait for it to finish
StephaneLenclud@131:                         Process proc = Process.Start(start);
StephaneLenclud@125: 
StephaneLenclud@131:                         //SL: We could have used that too
StephaneLenclud@131:                         //Shell32.Shell shell = new Shell32.Shell();
StephaneLenclud@131:                         //shell.ShellExecute(Properties.Settings.Default.StartFileName);
StephaneLenclud@131:                     }
StephaneLenclud@131:                     else
StephaneLenclud@131:                     {
StephaneLenclud@131:                         //This won't work properly until we have a manifest that enables uiAccess.
StephaneLenclud@131:                         //However uiAccess just won't work with ClickOnce so we will have to use a different deployment system.
StephaneLenclud@131:                         SwitchToThisWindow(existingProcesses[0].MainWindowHandle, true);
StephaneLenclud@131:                     }
StephaneLenclud@131:                 }
StephaneLenclud@131:             }
StephaneLenclud@131:         }
StephaneLenclud@125: 
StephaneLenclud@131:         /// <summary>
StephaneLenclud@131:         /// We need to handle WM_INPUT.
StephaneLenclud@131:         /// </summary>
StephaneLenclud@131:         /// <param name="message"></param>
StephaneLenclud@131:         protected override void WndProc(ref Message message)
StephaneLenclud@131:         {
StephaneLenclud@131:             switch (message.Msg)
StephaneLenclud@131:             {
StephaneLenclud@131:                 case Const.WM_INPUT:
StephaneLenclud@131:                     //Returning zero means we processed that message.
StephaneLenclud@131:                     message.Result = new IntPtr(0);
StephaneLenclud@131:                     iHidHandler.ProcessInput(ref message);
StephaneLenclud@131:                     break;
StephaneLenclud@131:             }
StephaneLenclud@131:             //Is that needed? Check the docs.
StephaneLenclud@131:             base.WndProc(ref message);
StephaneLenclud@131:         }
StephaneLenclud@131:     }
StephaneLenclud@125: }