MOUSEHOOKSTRUCTEX

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct POINT
{
    public int x;
    public int y;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct MOUSEHOOKSTRUCT
{
    public POINT pt;
    public IntPtr hwnd;
    public uint wHitTestCode;
    public UIntPtr dwExtraInfo;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct MOUSEHOOKSTRUCTEX
{
    public MOUSEHOOKSTRUCT Base;
    public uint mouseData;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure POINT
    Public x As Integer
    Public y As Integer
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure MOUSEHOOKSTRUCT
    Public pt As POINT
    Public hwnd As IntPtr
    Public wHitTestCode As UInteger
    Public dwExtraInfo As UIntPtr
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure MOUSEHOOKSTRUCTEX
    Public Base As MOUSEHOOKSTRUCT
    Public mouseData As UInteger
End Structure

import ctypes
from ctypes import wintypes

class POINT(ctypes.Structure):
    _fields_ = [
        ("x", ctypes.c_int),
        ("y", ctypes.c_int),
    ]

class MOUSEHOOKSTRUCT(ctypes.Structure):
    _fields_ = [
        ("pt", POINT),
        ("hwnd", ctypes.c_void_p),
        ("wHitTestCode", wintypes.DWORD),
        ("dwExtraInfo", ctypes.c_size_t),
    ]

class MOUSEHOOKSTRUCTEX(ctypes.Structure):
    _fields_ = [
        ("Base", MOUSEHOOKSTRUCT),
        ("mouseData", wintypes.DWORD),
    ]

#[repr(C)]
pub struct POINT {
    pub x: i32,
    pub y: i32,
}

#[repr(C)]
pub struct MOUSEHOOKSTRUCT {
    pub pt: POINT,
    pub hwnd: *mut core::ffi::c_void,
    pub wHitTestCode: u32,
    pub dwExtraInfo: usize,
}

#[repr(C)]
pub struct MOUSEHOOKSTRUCTEX {
    pub Base: MOUSEHOOKSTRUCT,
    pub mouseData: u32,
}

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

type POINT struct {
	x int32
	y int32
}

type MOUSEHOOKSTRUCT struct {
	pt POINT
	hwnd uintptr
	wHitTestCode uint32
	dwExtraInfo uintptr
}

type MOUSEHOOKSTRUCTEX struct {
	Base MOUSEHOOKSTRUCT
	mouseData uint32
}

type
  POINT = record
    x: Integer;
    y: Integer;
  end;

  MOUSEHOOKSTRUCT = record
    pt: POINT;
    hwnd: Pointer;
    wHitTestCode: DWORD;
    dwExtraInfo: NativeUInt;
  end;

  MOUSEHOOKSTRUCTEX = record
    Base: MOUSEHOOKSTRUCT;
    mouseData: DWORD;
  end;

const POINT = extern struct {
    x: i32,
    y: i32,
};

const MOUSEHOOKSTRUCT = extern struct {
    pt: POINT,
    hwnd: ?*anyopaque,
    wHitTestCode: u32,
    dwExtraInfo: usize,
};

const MOUSEHOOKSTRUCTEX = extern struct {
    Base: MOUSEHOOKSTRUCT,
    mouseData: u32,
};

type
  POINT {.bycopy.} = object
    x: int32
    y: int32

  MOUSEHOOKSTRUCT {.bycopy.} = object
    pt: POINT
    hwnd: pointer
    wHitTestCode: uint32
    dwExtraInfo: uint

  MOUSEHOOKSTRUCTEX {.bycopy.} = object
    Base: MOUSEHOOKSTRUCT
    mouseData: uint32

struct POINT
{
    int x;
    int y;
}

struct MOUSEHOOKSTRUCT
{
    POINT pt;
    void* hwnd;
    uint wHitTestCode;
    size_t dwExtraInfo;
}

struct MOUSEHOOKSTRUCTEX
{
    MOUSEHOOKSTRUCT Base;
    uint mouseData;
}