Control Windows7/8/10 volume use IR Remote and UDP Socket

ir-remote.js

const dgram      = require('dgram');
const InputEvent = require('input-event');

var remote = new InputEvent.Keyboard('/dev/input/event0');

var udp = dgram.createSocket('udp4');

remote.on('keypress', function(ev){
  console.log(ev.code);
  var buf = new Buffer('code:' + ev.code);
  udp.send(buf, 0, buf.length, 1989, '192.168.11.117');
});

RemoteServer.cs

using System;
using System.Diagnostics;
using System.Net;
using System.Net.Sockets;
using System.Runtime.InteropServices;
using System.Text;

namespace RemoteControlServer
{
    class RemoteServer
    {
        const int VOLUME_UP   = 175;
        const int VOLUME_DOWN = 174;

        static void Main(string[] args)
        {
            var endpoint = new IPEndPoint(IPAddress.Any, 1989);
            UdpClient server = new UdpClient(endpoint);
            Console.WriteLine("Remote Server is running at 1989 .");
                        
            while (true)
            {
                var sender = new IPEndPoint(IPAddress.Any, 0);
                var data = server.Receive(ref sender);
                string message = Encoding.ASCII.GetString(data, 0, data.Length);
                Console.WriteLine("{0}: {1}", sender, message);
                switch (message)
                {
                    case "code:7":
                        for(var i = 0; i < 10; i++) keybd_event((byte)VOLUME_DOWN, 0, 0, 0);
                        break;
                    case "code:9":
                        for (var i = 0; i < 10; i++) keybd_event((byte)VOLUME_UP, 0, 0, 0);
                        break;
                    case "code:69":
                        Process.Start("shutdown", "/s /t 0");
                        break;
                }
            }
        }

        [DllImport("user32.dll")]
        static extern void keybd_event(byte bVk, byte bScan, uint dwFlags, int dwExtraInfo);
    }
    
}