using System;
using System.Runtime.InteropServices;

namespace shutdown
{

    class Program
    {
        [DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        public static extern bool InitiateSystemShutdown(
            string lpMachineName,
            string lpMessage,
            uint dwTimeout,
            bool bForceAppsClosed,
            bool bRebootAfterShutdown);

        static void Main(string[] args)
        {
            using (new NetConnect(@"\\192.168.x.x", "nomeutente", "password"))
            {
                bool result = false;

                Console.WriteLine("Premere un tasto per spegnere il pc...");
                Console.ReadKey();
                result = InitiateSystemShutdown(@"\\192.168.x.x", "Shutdown...", 30, false, false);
                Console.WriteLine("Risultato: " + result);
                Console.ReadKey();
            }

        }
    }

    class NetConnect :
        IDisposable 
    {
        private struct NETRESOURCE
        {
            public int dwScope;
            public int dwType;
            public int dwDisplayType;
            public int dwUsage;
            [MarshalAs(System.Runtime.InteropServices.UnmanagedType.LPTStr)] public string lpLocalName;
            [MarshalAs(System.Runtime.InteropServices.UnmanagedType.LPTStr)] public string lpRemoteName;
            [MarshalAs(System.Runtime.InteropServices.UnmanagedType.LPTStr)] public string lpComment;
            [MarshalAs(System.Runtime.InteropServices.UnmanagedType.LPTStr)] public string lpProvider;
        }    

        private const int RESOURCETYPE_ANY = 0x00000000;
        private const int CONNECT_TEMPORARY = 0x00000004;

        [DllImport("mpr.dll", EntryPoint = "WNetAddConnection2W", CharSet=System.Runtime.InteropServices.CharSet.Unicode)]
        private static extern int WNetAddConnection2(ref NETRESOURCE lpNetResource, 
                                                     string lpPassword, 
                                                     string lpUsername, 
                                                     Int32 dwFlags);

        public void Dispose()
        {
            // Qui si potrebbe annullare la connessione...
        }

        public NetConnect(string RemoteResource, string Username, string Password)
        {
            int result;

            NETRESOURCE nr = new NETRESOURCE();

            nr.dwScope = 0;
            nr.dwType = RESOURCETYPE_ANY;
            nr.dwDisplayType = 0;
            nr.dwUsage = 0;
            nr.lpLocalName = null;
            nr.lpRemoteName = RemoteResource  + "\0";
            nr.lpComment = null;
            nr.lpProvider = null;

            result = WNetAddConnection2(ref nr, Password, Username, CONNECT_TEMPORARY);

            // Si potrebbe interpretare result in cerca di errori...

        }

    }

}