private void SendInput32(ushort scanCode)
        {
            Input32[] inputs = new Input32[1];

            inputs[0].type = InputKeyboard;
            inputs[0].ki = new KeyBoardInput(scanCode);

            SendInput(1, inputs, Marshal.SizeOf(inputs[0]));
        }
 private static extern uint SendInput(uint nInputs, Input32[] pInputs, int cbSize);