CWPSTRUCT

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct CWPSTRUCT
{
    public IntPtr lParam;
    public UIntPtr wParam;
    public uint message;
    public IntPtr hwnd;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure CWPSTRUCT
    Public lParam As IntPtr
    Public wParam As UIntPtr
    Public message As UInteger
    Public hwnd As IntPtr
End Structure

import ctypes
from ctypes import wintypes

class CWPSTRUCT(ctypes.Structure):
    _fields_ = [
        ("lParam", ctypes.c_ssize_t),
        ("wParam", ctypes.c_size_t),
        ("message", wintypes.DWORD),
        ("hwnd", ctypes.c_void_p),
    ]

#[repr(C)]
pub struct CWPSTRUCT {
    pub lParam: isize,
    pub wParam: usize,
    pub message: u32,
    pub hwnd: *mut core::ffi::c_void,
}

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

type CWPSTRUCT struct {
	lParam uintptr
	wParam uintptr
	message uint32
	hwnd uintptr
}

type
  CWPSTRUCT = record
    lParam: NativeInt;
    wParam: NativeUInt;
    message: DWORD;
    hwnd: Pointer;
  end;

const CWPSTRUCT = extern struct {
    lParam: isize,
    wParam: usize,
    message: u32,
    hwnd: ?*anyopaque,
};

type
  CWPSTRUCT {.bycopy.} = object
    lParam: int
    wParam: uint
    message: uint32
    hwnd: pointer

struct CWPSTRUCT
{
    ptrdiff_t lParam;
    size_t wParam;
    uint message;
    void* hwnd;
}