using System;

using System.Runtime.InteropServices;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

    }

    [DllImport("SDK.DLL", CharSet = CharSet.Unicode)]

    public static extern uint ProcessFileAPI(

        string lpSrcFileName, string lpDstFileName, IntPtr pgrsproc,

        IntPtr lpProgProcParam, ref bool pbCancel, [In] in TOptions1 options);

    public struct TOptions1

    {

        bool x;

    }

}