MSGBOXPARAMSA

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct MSGBOXPARAMSA
{
    public uint cbSize;
    public IntPtr hwndOwner;
    public IntPtr hInstance;
    public IntPtr lpszText;
    public IntPtr lpszCaption;
    public uint dwStyle;
    public IntPtr lpszIcon;
    public UIntPtr dwContextHelpId;
    public IntPtr lpfnMsgBoxCallback;
    public uint dwLanguageId;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure MSGBOXPARAMSA
    Public cbSize As UInteger
    Public hwndOwner As IntPtr
    Public hInstance As IntPtr
    Public lpszText As IntPtr
    Public lpszCaption As IntPtr
    Public dwStyle As UInteger
    Public lpszIcon As IntPtr
    Public dwContextHelpId As UIntPtr
    Public lpfnMsgBoxCallback As IntPtr
    Public dwLanguageId As UInteger
End Structure

import ctypes
from ctypes import wintypes

class MSGBOXPARAMSA(ctypes.Structure):
    _fields_ = [
        ("cbSize", wintypes.DWORD),
        ("hwndOwner", ctypes.c_void_p),
        ("hInstance", ctypes.c_void_p),
        ("lpszText", ctypes.c_void_p),
        ("lpszCaption", ctypes.c_void_p),
        ("dwStyle", wintypes.DWORD),
        ("lpszIcon", ctypes.c_void_p),
        ("dwContextHelpId", ctypes.c_size_t),
        ("lpfnMsgBoxCallback", ctypes.c_void_p),
        ("dwLanguageId", wintypes.DWORD),
    ]

#[repr(C)]
pub struct MSGBOXPARAMSA {
    pub cbSize: u32,
    pub hwndOwner: *mut core::ffi::c_void,
    pub hInstance: *mut core::ffi::c_void,
    pub lpszText: *mut core::ffi::c_void,
    pub lpszCaption: *mut core::ffi::c_void,
    pub dwStyle: u32,
    pub lpszIcon: *mut core::ffi::c_void,
    pub dwContextHelpId: usize,
    pub lpfnMsgBoxCallback: *mut core::ffi::c_void,
    pub dwLanguageId: u32,
}

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

type MSGBOXPARAMSA struct {
	cbSize uint32
	hwndOwner uintptr
	hInstance uintptr
	lpszText uintptr
	lpszCaption uintptr
	dwStyle uint32
	lpszIcon uintptr
	dwContextHelpId uintptr
	lpfnMsgBoxCallback uintptr
	dwLanguageId uint32
}

type
  MSGBOXPARAMSA = record
    cbSize: DWORD;
    hwndOwner: Pointer;
    hInstance: Pointer;
    lpszText: Pointer;
    lpszCaption: Pointer;
    dwStyle: DWORD;
    lpszIcon: Pointer;
    dwContextHelpId: NativeUInt;
    lpfnMsgBoxCallback: Pointer;
    dwLanguageId: DWORD;
  end;

const MSGBOXPARAMSA = extern struct {
    cbSize: u32,
    hwndOwner: ?*anyopaque,
    hInstance: ?*anyopaque,
    lpszText: ?*anyopaque,
    lpszCaption: ?*anyopaque,
    dwStyle: u32,
    lpszIcon: ?*anyopaque,
    dwContextHelpId: usize,
    lpfnMsgBoxCallback: ?*anyopaque,
    dwLanguageId: u32,
};

type
  MSGBOXPARAMSA {.bycopy.} = object
    cbSize: uint32
    hwndOwner: pointer
    hInstance: pointer
    lpszText: pointer
    lpszCaption: pointer
    dwStyle: uint32
    lpszIcon: pointer
    dwContextHelpId: uint
    lpfnMsgBoxCallback: pointer
    dwLanguageId: uint32

struct MSGBOXPARAMSA
{
    uint cbSize;
    void* hwndOwner;
    void* hInstance;
    void* lpszText;
    void* lpszCaption;
    uint dwStyle;
    void* lpszIcon;
    size_t dwContextHelpId;
    void* lpfnMsgBoxCallback;
    uint dwLanguageId;
}