dogguts

        public static IntPtr StringToHGlobalUTF8(string s, out int length)
        {
            if (s == null)
            {
                length = 0;
                return IntPtr.Zero;
            }

            var bytes = System.Text.Encoding.UTF8.GetBytes(s);
            var ptr = Marshal.AllocHGlobal(bytes.Length + 1);