COMPROPSHEETUI

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct COMPROPSHEETUI
{
    public ushort cbSize;
    public ushort Flags;
    public IntPtr hInstCaller;
    public IntPtr pCallerName;
    public UIntPtr UserData;
    public IntPtr pHelpFile;
    public IntPtr pfnCallBack;
    public IntPtr pOptItem;
    public IntPtr pDlgPage;
    public ushort cOptItem;
    public ushort cDlgPage;
    public UIntPtr IconID;
    public IntPtr pOptItemName;
    public ushort CallerVersion;
    public ushort OptItemVersion;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)] public UIntPtr[] dwReserved;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure COMPROPSHEETUI
    Public cbSize As UShort
    Public Flags As UShort
    Public hInstCaller As IntPtr
    Public pCallerName As IntPtr
    Public UserData As UIntPtr
    Public pHelpFile As IntPtr
    Public pfnCallBack As IntPtr
    Public pOptItem As IntPtr
    Public pDlgPage As IntPtr
    Public cOptItem As UShort
    Public cDlgPage As UShort
    Public IconID As UIntPtr
    Public pOptItemName As IntPtr
    Public CallerVersion As UShort
    Public OptItemVersion As UShort
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=4)> Public dwReserved() As UIntPtr
End Structure

import ctypes
from ctypes import wintypes

class COMPROPSHEETUI(ctypes.Structure):
    _fields_ = [
        ("cbSize", ctypes.c_ushort),
        ("Flags", ctypes.c_ushort),
        ("hInstCaller", ctypes.c_void_p),
        ("pCallerName", ctypes.c_void_p),
        ("UserData", ctypes.c_size_t),
        ("pHelpFile", ctypes.c_void_p),
        ("pfnCallBack", ctypes.c_void_p),
        ("pOptItem", ctypes.c_void_p),
        ("pDlgPage", ctypes.c_void_p),
        ("cOptItem", ctypes.c_ushort),
        ("cDlgPage", ctypes.c_ushort),
        ("IconID", ctypes.c_size_t),
        ("pOptItemName", ctypes.c_void_p),
        ("CallerVersion", ctypes.c_ushort),
        ("OptItemVersion", ctypes.c_ushort),
        ("dwReserved", ctypes.c_size_t * 4),
    ]

#[repr(C)]
pub struct COMPROPSHEETUI {
    pub cbSize: u16,
    pub Flags: u16,
    pub hInstCaller: *mut core::ffi::c_void,
    pub pCallerName: *mut core::ffi::c_void,
    pub UserData: usize,
    pub pHelpFile: *mut core::ffi::c_void,
    pub pfnCallBack: *mut core::ffi::c_void,
    pub pOptItem: *mut core::ffi::c_void,
    pub pDlgPage: *mut core::ffi::c_void,
    pub cOptItem: u16,
    pub cDlgPage: u16,
    pub IconID: usize,
    pub pOptItemName: *mut core::ffi::c_void,
    pub CallerVersion: u16,
    pub OptItemVersion: u16,
    pub dwReserved: [usize; 4],
}

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

type COMPROPSHEETUI struct {
	cbSize uint16
	Flags uint16
	hInstCaller uintptr
	pCallerName uintptr
	UserData uintptr
	pHelpFile uintptr
	pfnCallBack uintptr
	pOptItem uintptr
	pDlgPage uintptr
	cOptItem uint16
	cDlgPage uint16
	IconID uintptr
	pOptItemName uintptr
	CallerVersion uint16
	OptItemVersion uint16
	dwReserved [4]uintptr
}

type
  COMPROPSHEETUI = record
    cbSize: Word;
    Flags: Word;
    hInstCaller: Pointer;
    pCallerName: Pointer;
    UserData: NativeUInt;
    pHelpFile: Pointer;
    pfnCallBack: Pointer;
    pOptItem: Pointer;
    pDlgPage: Pointer;
    cOptItem: Word;
    cDlgPage: Word;
    IconID: NativeUInt;
    pOptItemName: Pointer;
    CallerVersion: Word;
    OptItemVersion: Word;
    dwReserved: array[0..3] of NativeUInt;
  end;

const COMPROPSHEETUI = extern struct {
    cbSize: u16,
    Flags: u16,
    hInstCaller: ?*anyopaque,
    pCallerName: ?*anyopaque,
    UserData: usize,
    pHelpFile: ?*anyopaque,
    pfnCallBack: ?*anyopaque,
    pOptItem: ?*anyopaque,
    pDlgPage: ?*anyopaque,
    cOptItem: u16,
    cDlgPage: u16,
    IconID: usize,
    pOptItemName: ?*anyopaque,
    CallerVersion: u16,
    OptItemVersion: u16,
    dwReserved: [4]usize,
};

type
  COMPROPSHEETUI {.bycopy.} = object
    cbSize: uint16
    Flags: uint16
    hInstCaller: pointer
    pCallerName: pointer
    UserData: uint
    pHelpFile: pointer
    pfnCallBack: pointer
    pOptItem: pointer
    pDlgPage: pointer
    cOptItem: uint16
    cDlgPage: uint16
    IconID: uint
    pOptItemName: pointer
    CallerVersion: uint16
    OptItemVersion: uint16
    dwReserved: array[4, uint]

struct COMPROPSHEETUI
{
    ushort cbSize;
    ushort Flags;
    void* hInstCaller;
    void* pCallerName;
    size_t UserData;
    void* pHelpFile;
    void* pfnCallBack;
    void* pOptItem;
    void* pDlgPage;
    ushort cOptItem;
    ushort cDlgPage;
    size_t IconID;
    void* pOptItemName;
    ushort CallerVersion;
    ushort OptItemVersion;
    size_t[4] dwReserved;
}