How to send keys to specified app with title?

        private static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

        [DllImport("user32.dll")]
        private static extern bool SetForegroundWindow(IntPtr hWnd);

        public static void Test()
        {
            IntPtr zero = IntPtr.Zero;
            for (int i = 0; (i < 60) && (zero == IntPtr.Zero); i++)
            {
                zero = FindWindow(null, "Minecraft 1.8.8");
            }
            if (zero != IntPtr.Zero)
            {
                SetForegroundWindow(zero);
                SendKeys.Send("D");
                SendKeys.Send("D");
                SendKeys.Send("D");
                SendKeys.Send("D");
                SendKeys.Send("D");
                SendKeys.Send("D");
                SendKeys.Send("D");
                SendKeys.Send("D");
                SendKeys.Send("D");
                SendKeys.Send("D");
                SendKeys.Send("D");
            }
        }