WNDOBJ

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct RECTL
{
    public int left;
    public int top;
    public int right;
    public int bottom;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct CLIPOBJ
{
    public uint iUniq;
    public RECTL rclBounds;
    public byte iDComplexity;
    public byte iFComplexity;
    public byte iMode;
    public byte fjOptions;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct WNDOBJ
{
    public CLIPOBJ coClient;
    public IntPtr pvConsumer;
    public RECTL rclClient;
    public IntPtr psoOwner;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure RECTL
    Public left As Integer
    Public top As Integer
    Public right As Integer
    Public bottom As Integer
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure CLIPOBJ
    Public iUniq As UInteger
    Public rclBounds As RECTL
    Public iDComplexity As Byte
    Public iFComplexity As Byte
    Public iMode As Byte
    Public fjOptions As Byte
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure WNDOBJ
    Public coClient As CLIPOBJ
    Public pvConsumer As IntPtr
    Public rclClient As RECTL
    Public psoOwner As IntPtr
End Structure

import ctypes
from ctypes import wintypes

class RECTL(ctypes.Structure):
    _fields_ = [
        ("left", ctypes.c_int),
        ("top", ctypes.c_int),
        ("right", ctypes.c_int),
        ("bottom", ctypes.c_int),
    ]

class CLIPOBJ(ctypes.Structure):
    _fields_ = [
        ("iUniq", wintypes.DWORD),
        ("rclBounds", RECTL),
        ("iDComplexity", ctypes.c_ubyte),
        ("iFComplexity", ctypes.c_ubyte),
        ("iMode", ctypes.c_ubyte),
        ("fjOptions", ctypes.c_ubyte),
    ]

class WNDOBJ(ctypes.Structure):
    _fields_ = [
        ("coClient", CLIPOBJ),
        ("pvConsumer", ctypes.c_void_p),
        ("rclClient", RECTL),
        ("psoOwner", ctypes.c_void_p),
    ]

#[repr(C)]
pub struct RECTL {
    pub left: i32,
    pub top: i32,
    pub right: i32,
    pub bottom: i32,
}

#[repr(C)]
pub struct CLIPOBJ {
    pub iUniq: u32,
    pub rclBounds: RECTL,
    pub iDComplexity: u8,
    pub iFComplexity: u8,
    pub iMode: u8,
    pub fjOptions: u8,
}

#[repr(C)]
pub struct WNDOBJ {
    pub coClient: CLIPOBJ,
    pub pvConsumer: *mut core::ffi::c_void,
    pub rclClient: RECTL,
    pub psoOwner: *mut core::ffi::c_void,
}

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

type RECTL struct {
	left int32
	top int32
	right int32
	bottom int32
}

type CLIPOBJ struct {
	iUniq uint32
	rclBounds RECTL
	iDComplexity byte
	iFComplexity byte
	iMode byte
	fjOptions byte
}

type WNDOBJ struct {
	coClient CLIPOBJ
	pvConsumer uintptr
	rclClient RECTL
	psoOwner uintptr
}

type
  RECTL = record
    left: Integer;
    top: Integer;
    right: Integer;
    bottom: Integer;
  end;

  CLIPOBJ = record
    iUniq: DWORD;
    rclBounds: RECTL;
    iDComplexity: Byte;
    iFComplexity: Byte;
    iMode: Byte;
    fjOptions: Byte;
  end;

  WNDOBJ = record
    coClient: CLIPOBJ;
    pvConsumer: Pointer;
    rclClient: RECTL;
    psoOwner: Pointer;
  end;

const RECTL = extern struct {
    left: i32,
    top: i32,
    right: i32,
    bottom: i32,
};

const CLIPOBJ = extern struct {
    iUniq: u32,
    rclBounds: RECTL,
    iDComplexity: u8,
    iFComplexity: u8,
    iMode: u8,
    fjOptions: u8,
};

const WNDOBJ = extern struct {
    coClient: CLIPOBJ,
    pvConsumer: ?*anyopaque,
    rclClient: RECTL,
    psoOwner: ?*anyopaque,
};

type
  RECTL {.bycopy.} = object
    left: int32
    top: int32
    right: int32
    bottom: int32

  CLIPOBJ {.bycopy.} = object
    iUniq: uint32
    rclBounds: RECTL
    iDComplexity: uint8
    iFComplexity: uint8
    iMode: uint8
    fjOptions: uint8

  WNDOBJ {.bycopy.} = object
    coClient: CLIPOBJ
    pvConsumer: pointer
    rclClient: RECTL
    psoOwner: pointer

struct RECTL
{
    int left;
    int top;
    int right;
    int bottom;
}

struct CLIPOBJ
{
    uint iUniq;
    RECTL rclBounds;
    ubyte iDComplexity;
    ubyte iFComplexity;
    ubyte iMode;
    ubyte fjOptions;
}

struct WNDOBJ
{
    CLIPOBJ coClient;
    void* pvConsumer;
    RECTL rclClient;
    void* psoOwner;
}