TOOLBARITEM

using System;
using System.Runtime.InteropServices;

[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 TOOLBARITEM
{
    public IntPtr ptbar;
    public RECT rcBorderTool;
    public IntPtr pwszItem;
    [MarshalAs(UnmanagedType.Bool)] public bool fShow;
    public IntPtr hMon;
}

Imports System.Runtime.InteropServices

<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 TOOLBARITEM
    Public ptbar As IntPtr
    Public rcBorderTool As RECT
    Public pwszItem As IntPtr
    <MarshalAs(UnmanagedType.Bool)> Public fShow As Boolean
    Public hMon As IntPtr
End Structure

import ctypes
from ctypes import wintypes

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

class TOOLBARITEM(ctypes.Structure):
    _fields_ = [
        ("ptbar", ctypes.c_void_p),
        ("rcBorderTool", RECT),
        ("pwszItem", ctypes.c_void_p),
        ("fShow", wintypes.BOOL),
        ("hMon", ctypes.c_void_p),
    ]

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

#[repr(C)]
pub struct TOOLBARITEM {
    pub ptbar: *mut core::ffi::c_void,
    pub rcBorderTool: RECT,
    pub pwszItem: *mut core::ffi::c_void,
    pub fShow: i32,
    pub hMon: *mut core::ffi::c_void,
}

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

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

type TOOLBARITEM struct {
	ptbar uintptr
	rcBorderTool RECT
	pwszItem uintptr
	fShow int32
	hMon uintptr
}

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

  TOOLBARITEM = record
    ptbar: Pointer;
    rcBorderTool: RECT;
    pwszItem: Pointer;
    fShow: BOOL;
    hMon: Pointer;
  end;

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

const TOOLBARITEM = extern struct {
    ptbar: ?*anyopaque,
    rcBorderTool: RECT,
    pwszItem: ?*anyopaque,
    fShow: i32,
    hMon: ?*anyopaque,
};

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

  TOOLBARITEM {.bycopy.} = object
    ptbar: pointer
    rcBorderTool: RECT
    pwszItem: pointer
    fShow: int32
    hMon: pointer

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

struct TOOLBARITEM
{
    void* ptbar;
    RECT rcBorderTool;
    void* pwszItem;
    int fShow;
    void* hMon;
}