OpenTK.Input.KeyboardDevice.ToString C# (CSharp) Method

        public override string ToString()
        {
            //return base.ToString();
            return String.Format("ID: {0} ({1}). Keys: {2}, Function keys: {3}, Leds: {4}",
                DeviceID, Description, NumberOfKeys, NumberOfFunctionKeys, NumberOfLeds);
        }

        internal void RegisterKeyboardDevice(KeyboardDevice kb)
        {
            RawInputDevice[] rid = new RawInputDevice[1];
            // Keyboard is 1/6 (page/id). See http://www.microsoft.com/whdc/device/input/HID_HWID.mspx
            rid[0] = new RawInputDevice();
            rid[0].UsagePage = 1;
            rid[0].Usage = 6;
            rid[0].Flags = RawInputDeviceFlags.INPUTSINK;
            rid[0].Target = window;

            if (!Functions.RegisterRawInputDevices(rid, 1, API.RawInputDeviceSize))
            {
                throw new ApplicationException(
                    String.Format(
                        "Raw input registration failed with error: {0}. Device: {1}",
                        Marshal.GetLastWin32Error(),
                        rid[0].ToString())
                );
            }
            else
            {
                Debug.Print("Registered keyboard {0}", kb.ToString());
            }
        }