DRVFN

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct DRVFN
{
    public uint iFunc;
    public IntPtr pfn;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure DRVFN
    Public iFunc As UInteger
    Public pfn As IntPtr
End Structure

import ctypes
from ctypes import wintypes

class DRVFN(ctypes.Structure):
    _fields_ = [
        ("iFunc", wintypes.DWORD),
        ("pfn", ctypes.c_void_p),
    ]

#[repr(C)]
pub struct DRVFN {
    pub iFunc: u32,
    pub pfn: *mut core::ffi::c_void,
}

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

type DRVFN struct {
	iFunc uint32
	pfn uintptr
}

type
  DRVFN = record
    iFunc: DWORD;
    pfn: Pointer;
  end;

const DRVFN = extern struct {
    iFunc: u32,
    pfn: ?*anyopaque,
};

type
  DRVFN {.bycopy.} = object
    iFunc: uint32
    pfn: pointer

struct DRVFN
{
    uint iFunc;
    void* pfn;
}