Decchi.Utilities.GlobalKeyboardHook.hook C# (CSharp) Method

        public void hook()
        {
            if (hhook == IntPtr.Zero)
            {
                if (m_hLibrary == IntPtr.Zero)
                    m_hLibrary = NativeMethods.LoadLibrary("User32");

                hhook = NativeMethods.SetWindowsHookEx(NativeMethods.WH_KEYBOARD_LL, khp, m_hLibrary, 0);
            }
        }