MapiFileTagExt

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct MapiFileTagExt
{
    public uint ulReserved;
    public uint cbTag;
    public IntPtr lpTag;
    public uint cbEncoding;
    public IntPtr lpEncoding;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure MapiFileTagExt
    Public ulReserved As UInteger
    Public cbTag As UInteger
    Public lpTag As IntPtr
    Public cbEncoding As UInteger
    Public lpEncoding As IntPtr
End Structure

import ctypes
from ctypes import wintypes

class MapiFileTagExt(ctypes.Structure):
    _fields_ = [
        ("ulReserved", wintypes.DWORD),
        ("cbTag", wintypes.DWORD),
        ("lpTag", ctypes.c_void_p),
        ("cbEncoding", wintypes.DWORD),
        ("lpEncoding", ctypes.c_void_p),
    ]

#[repr(C)]
pub struct MapiFileTagExt {
    pub ulReserved: u32,
    pub cbTag: u32,
    pub lpTag: *mut core::ffi::c_void,
    pub cbEncoding: u32,
    pub lpEncoding: *mut core::ffi::c_void,
}

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

type MapiFileTagExt struct {
	ulReserved uint32
	cbTag uint32
	lpTag uintptr
	cbEncoding uint32
	lpEncoding uintptr
}

type
  MapiFileTagExt = record
    ulReserved: DWORD;
    cbTag: DWORD;
    lpTag: Pointer;
    cbEncoding: DWORD;
    lpEncoding: Pointer;
  end;

const MapiFileTagExt = extern struct {
    ulReserved: u32,
    cbTag: u32,
    lpTag: ?*anyopaque,
    cbEncoding: u32,
    lpEncoding: ?*anyopaque,
};

type
  MapiFileTagExt {.bycopy.} = object
    ulReserved: uint32
    cbTag: uint32
    lpTag: pointer
    cbEncoding: uint32
    lpEncoding: pointer

struct MapiFileTagExt
{
    uint ulReserved;
    uint cbTag;
    void* lpTag;
    uint cbEncoding;
    void* lpEncoding;
}