COMEVENTSYSCHANGEINFO

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct COMEVENTSYSCHANGEINFO
{
    public uint cbSize;
    public int changeType;
    public IntPtr objectId;
    public IntPtr partitionId;
    public IntPtr applicationId;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 10)] public Guid[] reserved;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure COMEVENTSYSCHANGEINFO
    Public cbSize As UInteger
    Public changeType As Integer
    Public objectId As IntPtr
    Public partitionId As IntPtr
    Public applicationId As IntPtr
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=10)> Public reserved() As Guid
End Structure

import ctypes
from ctypes import wintypes

class COMEVENTSYSCHANGEINFO(ctypes.Structure):
    _fields_ = [
        ("cbSize", wintypes.DWORD),
        ("changeType", ctypes.c_int),
        ("objectId", ctypes.c_void_p),
        ("partitionId", ctypes.c_void_p),
        ("applicationId", ctypes.c_void_p),
        ("reserved", GUID * 10),
    ]

#[repr(C)]
pub struct COMEVENTSYSCHANGEINFO {
    pub cbSize: u32,
    pub changeType: i32,
    pub objectId: *mut core::ffi::c_void,
    pub partitionId: *mut core::ffi::c_void,
    pub applicationId: *mut core::ffi::c_void,
    pub reserved: [GUID; 10],
}

import "golang.org/x/sys/windows"

type COMEVENTSYSCHANGEINFO struct {
	cbSize uint32
	changeType int32
	objectId uintptr
	partitionId uintptr
	applicationId uintptr
	reserved [10]windows.GUID
}

type
  COMEVENTSYSCHANGEINFO = record
    cbSize: DWORD;
    changeType: Integer;
    objectId: Pointer;
    partitionId: Pointer;
    applicationId: Pointer;
    reserved: array[0..9] of TGUID;
  end;

const COMEVENTSYSCHANGEINFO = extern struct {
    cbSize: u32,
    changeType: i32,
    objectId: ?*anyopaque,
    partitionId: ?*anyopaque,
    applicationId: ?*anyopaque,
    reserved: [10]GUID,
};

type
  COMEVENTSYSCHANGEINFO {.bycopy.} = object
    cbSize: uint32
    changeType: int32
    objectId: pointer
    partitionId: pointer
    applicationId: pointer
    reserved: array[10, GUID]

struct COMEVENTSYSCHANGEINFO
{
    uint cbSize;
    int changeType;
    void* objectId;
    void* partitionId;
    void* applicationId;
    GUID[10] reserved;
}