TTHITTESTINFOW

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 RECT
{
    public int left;
    public int top;
    public int right;
    public int bottom;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct TTTOOLINFOW
{
    public uint cbSize;
    public uint uFlags;
    public IntPtr hwnd;
    public UIntPtr uId;
    public RECT rect;
    public IntPtr hinst;
    public IntPtr lpszText;
    public IntPtr lParam;
    public IntPtr lpReserved;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct TTHITTESTINFOW
{
    public IntPtr hwnd;
    public POINT pt;
    public TTTOOLINFOW ti;
}

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 RECT
    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 TTTOOLINFOW
    Public cbSize As UInteger
    Public uFlags As UInteger
    Public hwnd As IntPtr
    Public uId As UIntPtr
    Public rect As RECT
    Public hinst As IntPtr
    Public lpszText As IntPtr
    Public lParam As IntPtr
    Public lpReserved As IntPtr
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure TTHITTESTINFOW
    Public hwnd As IntPtr
    Public pt As POINT
    Public ti As TTTOOLINFOW
End Structure

import ctypes
from ctypes import wintypes

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

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

class TTTOOLINFOW(ctypes.Structure):
    _fields_ = [
        ("cbSize", wintypes.DWORD),
        ("uFlags", wintypes.DWORD),
        ("hwnd", ctypes.c_void_p),
        ("uId", ctypes.c_size_t),
        ("rect", RECT),
        ("hinst", ctypes.c_void_p),
        ("lpszText", ctypes.c_void_p),
        ("lParam", ctypes.c_ssize_t),
        ("lpReserved", ctypes.c_void_p),
    ]

class TTHITTESTINFOW(ctypes.Structure):
    _fields_ = [
        ("hwnd", ctypes.c_void_p),
        ("pt", POINT),
        ("ti", TTTOOLINFOW),
    ]

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

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

#[repr(C)]
pub struct TTTOOLINFOW {
    pub cbSize: u32,
    pub uFlags: u32,
    pub hwnd: *mut core::ffi::c_void,
    pub uId: usize,
    pub rect: RECT,
    pub hinst: *mut core::ffi::c_void,
    pub lpszText: *mut core::ffi::c_void,
    pub lParam: isize,
    pub lpReserved: *mut core::ffi::c_void,
}

#[repr(C)]
pub struct TTHITTESTINFOW {
    pub hwnd: *mut core::ffi::c_void,
    pub pt: POINT,
    pub ti: TTTOOLINFOW,
}

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

type POINT struct {
	x int32
	y int32
}

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

type TTTOOLINFOW struct {
	cbSize uint32
	uFlags uint32
	hwnd uintptr
	uId uintptr
	rect RECT
	hinst uintptr
	lpszText uintptr
	lParam uintptr
	lpReserved uintptr
}

type TTHITTESTINFOW struct {
	hwnd uintptr
	pt POINT
	ti TTTOOLINFOW
}

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

  RECT = record
    left: Integer;
    top: Integer;
    right: Integer;
    bottom: Integer;
  end;

  TTTOOLINFOW = record
    cbSize: DWORD;
    uFlags: DWORD;
    hwnd: Pointer;
    uId: NativeUInt;
    rect: RECT;
    hinst: Pointer;
    lpszText: Pointer;
    lParam: NativeInt;
    lpReserved: Pointer;
  end;

  TTHITTESTINFOW = record
    hwnd: Pointer;
    pt: POINT;
    ti: TTTOOLINFOW;
  end;

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

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

const TTTOOLINFOW = extern struct {
    cbSize: u32,
    uFlags: u32,
    hwnd: ?*anyopaque,
    uId: usize,
    rect: RECT,
    hinst: ?*anyopaque,
    lpszText: ?*anyopaque,
    lParam: isize,
    lpReserved: ?*anyopaque,
};

const TTHITTESTINFOW = extern struct {
    hwnd: ?*anyopaque,
    pt: POINT,
    ti: TTTOOLINFOW,
};

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

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

  TTTOOLINFOW {.bycopy.} = object
    cbSize: uint32
    uFlags: uint32
    hwnd: pointer
    uId: uint
    rect: RECT
    hinst: pointer
    lpszText: pointer
    lParam: int
    lpReserved: pointer

  TTHITTESTINFOW {.bycopy.} = object
    hwnd: pointer
    pt: POINT
    ti: TTTOOLINFOW

struct POINT
{
    int x;
    int y;
}

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

struct TTTOOLINFOW
{
    uint cbSize;
    uint uFlags;
    void* hwnd;
    size_t uId;
    RECT rect;
    void* hinst;
    void* lpszText;
    ptrdiff_t lParam;
    void* lpReserved;
}

struct TTHITTESTINFOW
{
    void* hwnd;
    POINT pt;
    TTTOOLINFOW ti;
}