从C#调用Advapi32.dll本机EventWrite函数？

using System;
using System.Runtime.InteropServices;

class Program
{
    [DllImport("advapi32.dll", SetLastError = true)]
    private static extern bool EventWrite(IntPtr hEventLog, IntPtr pRecord);

    [StructLayout(LayoutKind.Sequential)]
    private struct EVENTLOGRECORD
    {
        public uint Length;
        public ushort Reserved;
        public uint RecordNumber;
        public uint TimeGenerated;
        public uint TimeWritten;
        public ushort EventID;
        public ushort EventType;
        public ushort NumStrings;
        public ushort EventCategory;
        public ushort ReservedFlags;
        public int ClosingRecordNumber;
        public int StringOffset;
        public int UserSidLength;
        public int UserSidOffset;
        public int DataLength;
        public int DataOffset;
    }

    static void Main()
    {
        IntPtr hEventLog = OpenEventLog(null, "Application");
        if (hEventLog == IntPtr.Zero)
        {
            Console.WriteLine("Failed to open event log.");
            return;
        }

        EVENTLOGRECORD record = new EVENTLOGRECORD();
        record.Length = (uint)Marshal.SizeOf(record);
        record.EventID = 1234;
        record.EventType = 1; // Information
        record.EventCategory = 1;
        record.NumStrings = 1;

        IntPtr pRecord = Marshal.AllocHGlobal(Marshal.SizeOf(record));
        Marshal.StructureToPtr(record, pRecord, false);

        if (!EventWrite(hEventLog, pRecord))
        {
            Console.WriteLine("Failed to write event log. Error code: " + Marshal.GetLastWin32Error());
        }
        else
        {
            Console.WriteLine("Event written successfully.");
        }

        Marshal.FreeHGlobal(pRecord);
        CloseEventLog(hEventLog);
    }

    [DllImport("advapi32.dll", SetLastError = true)]
    private static extern IntPtr OpenEventLog(string machineName, string logName);

    [DllImport("advapi32.dll", SetLastError = true)]
    private static extern bool CloseEventLog(IntPtr hEventLog);
}