hatasum

        Guid GUID_LIDSWITCH_STATE_CHANGE = new Guid(0xBA3E0F4D, 0xB817, 0x4094, 0xA2, 0xD1, 0xD5, 0x63, 0x79, 0xE6, 0xA0, 0xF3);
        const int DEVICE_NOTIFY_WINDOW_HANDLE = 0x00000000;
        const int WM_POWERBROADCAST = 0x0218;

        public MainWindow()
        {
            this.SourceInitialized += MainWindow_SourceInitialized;
        }

 

        void MainWindow_SourceInitialized(object sender, EventArgs e)
        {
            RegisterForPowerNotifications();
            IntPtr hwnd = new WindowInteropHelper(this).Handle;
            HwndSource.FromHwnd(hwnd).AddHook(new HwndSourceHook(WndProc));
        }

        private void RegisterForPowerNotifications()
        {
            IntPtr handle = new WindowInteropHelper(Application.Current.Windows[0]).Handle;
           IntPtr hLIDSWITCHSTATECHANGE = RegisterPowerSettingNotification(handle,
                ref GUID_LIDSWITCH_STATE_CHANGE,
                DEVICE_NOTIFY_WINDOW_HANDLE);
        }

        IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
        {
                switch (msg)
                {
                    case WM_POWERBROADCAST:
                        OnPowerBroadcast(wParam, lParam);
                        break;
                    default:
                        break;
                }
            return IntPtr.Zero;
        }

        private void OnPowerBroadcast(IntPtr wParam, IntPtr lParam)
        {
            if ((int)wParam == PBT_POWERSETTINGCHANGE)
            {
                POWERBROADCAST_SETTING ps = (POWERBROADCAST_SETTING)Marshal.PtrToStructure(lParam, typeof(POWERBROADCAST_SETTING));
                IntPtr pData = (IntPtr)((int)lParam + Marshal.SizeOf(ps));
                Int32 iData = (Int32)Marshal.PtrToStructure(pData, typeof(Int32));
                if (ps.PowerSetting == GUID_LIDSWITCH_STATE_CHANGE)
                {
                      if (ps.Data == 0)
                      {
                           // lid is closed
                      }
                      else
                      {
                           // lid is opened
                      }
                }
            }
        }

        internal struct POWERBROADCAST_SETTING
        {
            public Guid PowerSetting;
            public uint DataLength;
            public byte Data;
        }