RAWINPUT

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct RAWINPUTHEADER
{
    public uint dwType;
    public uint dwSize;
    public IntPtr hDevice;
    public UIntPtr wParam;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct RAWINPUT
{
    public RAWINPUTHEADER header;
    public _data_e__Union data;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure RAWINPUTHEADER
    Public dwType As UInteger
    Public dwSize As UInteger
    Public hDevice As IntPtr
    Public wParam As UIntPtr
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure RAWINPUT
    Public header As RAWINPUTHEADER
    Public data As _data_e__Union
End Structure

import ctypes
from ctypes import wintypes

class RAWINPUTHEADER(ctypes.Structure):
    _fields_ = [
        ("dwType", wintypes.DWORD),
        ("dwSize", wintypes.DWORD),
        ("hDevice", ctypes.c_void_p),
        ("wParam", ctypes.c_size_t),
    ]

class RAWINPUT(ctypes.Structure):
    _fields_ = [
        ("header", RAWINPUTHEADER),
        ("data", _data_e__Union),
    ]

#[repr(C)]
pub struct RAWINPUTHEADER {
    pub dwType: u32,
    pub dwSize: u32,
    pub hDevice: *mut core::ffi::c_void,
    pub wParam: usize,
}

#[repr(C)]
pub struct RAWINPUT {
    pub header: RAWINPUTHEADER,
    pub data: _data_e__Union,
}

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

type RAWINPUTHEADER struct {
	dwType uint32
	dwSize uint32
	hDevice uintptr
	wParam uintptr
}

type RAWINPUT struct {
	header RAWINPUTHEADER
	data _data_e__Union
}

type
  RAWINPUTHEADER = record
    dwType: DWORD;
    dwSize: DWORD;
    hDevice: Pointer;
    wParam: NativeUInt;
  end;

  RAWINPUT = record
    header: RAWINPUTHEADER;
    data: _data_e__Union;
  end;

const RAWINPUTHEADER = extern struct {
    dwType: u32,
    dwSize: u32,
    hDevice: ?*anyopaque,
    wParam: usize,
};

const RAWINPUT = extern struct {
    header: RAWINPUTHEADER,
    data: _data_e__Union,
};

type
  RAWINPUTHEADER {.bycopy.} = object
    dwType: uint32
    dwSize: uint32
    hDevice: pointer
    wParam: uint

  RAWINPUT {.bycopy.} = object
    header: RAWINPUTHEADER
    data: _data_e__Union

struct RAWINPUTHEADER
{
    uint dwType;
    uint dwSize;
    void* hDevice;
    size_t wParam;
}

struct RAWINPUT
{
    RAWINPUTHEADER header;
    _data_e__Union data;
}