LVITEMW

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct LVITEMW
{
    public uint mask;
    public int iItem;
    public int iSubItem;
    public uint state;
    public uint stateMask;
    public IntPtr pszText;
    public int cchTextMax;
    public int iImage;
    public IntPtr lParam;
    public int iIndent;
    public int iGroupId;
    public uint cColumns;
    public IntPtr puColumns;
    public IntPtr piColFmt;
    public int iGroup;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure LVITEMW
    Public mask As UInteger
    Public iItem As Integer
    Public iSubItem As Integer
    Public state As UInteger
    Public stateMask As UInteger
    Public pszText As IntPtr
    Public cchTextMax As Integer
    Public iImage As Integer
    Public lParam As IntPtr
    Public iIndent As Integer
    Public iGroupId As Integer
    Public cColumns As UInteger
    Public puColumns As IntPtr
    Public piColFmt As IntPtr
    Public iGroup As Integer
End Structure

import ctypes
from ctypes import wintypes

class LVITEMW(ctypes.Structure):
    _fields_ = [
        ("mask", wintypes.DWORD),
        ("iItem", ctypes.c_int),
        ("iSubItem", ctypes.c_int),
        ("state", wintypes.DWORD),
        ("stateMask", wintypes.DWORD),
        ("pszText", ctypes.c_void_p),
        ("cchTextMax", ctypes.c_int),
        ("iImage", ctypes.c_int),
        ("lParam", ctypes.c_ssize_t),
        ("iIndent", ctypes.c_int),
        ("iGroupId", ctypes.c_int),
        ("cColumns", wintypes.DWORD),
        ("puColumns", ctypes.c_void_p),
        ("piColFmt", ctypes.c_void_p),
        ("iGroup", ctypes.c_int),
    ]

#[repr(C)]
pub struct LVITEMW {
    pub mask: u32,
    pub iItem: i32,
    pub iSubItem: i32,
    pub state: u32,
    pub stateMask: u32,
    pub pszText: *mut core::ffi::c_void,
    pub cchTextMax: i32,
    pub iImage: i32,
    pub lParam: isize,
    pub iIndent: i32,
    pub iGroupId: i32,
    pub cColumns: u32,
    pub puColumns: *mut core::ffi::c_void,
    pub piColFmt: *mut core::ffi::c_void,
    pub iGroup: i32,
}

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

type LVITEMW struct {
	mask uint32
	iItem int32
	iSubItem int32
	state uint32
	stateMask uint32
	pszText uintptr
	cchTextMax int32
	iImage int32
	lParam uintptr
	iIndent int32
	iGroupId int32
	cColumns uint32
	puColumns uintptr
	piColFmt uintptr
	iGroup int32
}

type
  LVITEMW = record
    mask: DWORD;
    iItem: Integer;
    iSubItem: Integer;
    state: DWORD;
    stateMask: DWORD;
    pszText: Pointer;
    cchTextMax: Integer;
    iImage: Integer;
    lParam: NativeInt;
    iIndent: Integer;
    iGroupId: Integer;
    cColumns: DWORD;
    puColumns: Pointer;
    piColFmt: Pointer;
    iGroup: Integer;
  end;

const LVITEMW = extern struct {
    mask: u32,
    iItem: i32,
    iSubItem: i32,
    state: u32,
    stateMask: u32,
    pszText: ?*anyopaque,
    cchTextMax: i32,
    iImage: i32,
    lParam: isize,
    iIndent: i32,
    iGroupId: i32,
    cColumns: u32,
    puColumns: ?*anyopaque,
    piColFmt: ?*anyopaque,
    iGroup: i32,
};

type
  LVITEMW {.bycopy.} = object
    mask: uint32
    iItem: int32
    iSubItem: int32
    state: uint32
    stateMask: uint32
    pszText: pointer
    cchTextMax: int32
    iImage: int32
    lParam: int
    iIndent: int32
    iGroupId: int32
    cColumns: uint32
    puColumns: pointer
    piColFmt: pointer
    iGroup: int32

struct LVITEMW
{
    uint mask;
    int iItem;
    int iSubItem;
    uint state;
    uint stateMask;
    void* pszText;
    int cchTextMax;
    int iImage;
    ptrdiff_t lParam;
    int iIndent;
    int iGroupId;
    uint cColumns;
    void* puColumns;
    void* piColFmt;
    int iGroup;
}