RASUPDATECONN

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct RASTUNNELENDPOINT
{
    public uint dwType;
    public _Anonymous_e__Union Anonymous;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct RASUPDATECONN
{
    public int version;
    public uint dwSize;
    public uint dwFlags;
    public uint dwIfIndex;
    public RASTUNNELENDPOINT localEndPoint;
    public RASTUNNELENDPOINT remoteEndPoint;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure RASTUNNELENDPOINT
    Public dwType As UInteger
    Public Anonymous As _Anonymous_e__Union
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure RASUPDATECONN
    Public version As Integer
    Public dwSize As UInteger
    Public dwFlags As UInteger
    Public dwIfIndex As UInteger
    Public localEndPoint As RASTUNNELENDPOINT
    Public remoteEndPoint As RASTUNNELENDPOINT
End Structure

import ctypes
from ctypes import wintypes

class RASTUNNELENDPOINT(ctypes.Structure):
    _fields_ = [
        ("dwType", wintypes.DWORD),
        ("Anonymous", _Anonymous_e__Union),
    ]

class RASUPDATECONN(ctypes.Structure):
    _fields_ = [
        ("version", ctypes.c_int),
        ("dwSize", wintypes.DWORD),
        ("dwFlags", wintypes.DWORD),
        ("dwIfIndex", wintypes.DWORD),
        ("localEndPoint", RASTUNNELENDPOINT),
        ("remoteEndPoint", RASTUNNELENDPOINT),
    ]

#[repr(C)]
pub struct RASTUNNELENDPOINT {
    pub dwType: u32,
    pub Anonymous: _Anonymous_e__Union,
}

#[repr(C)]
pub struct RASUPDATECONN {
    pub version: i32,
    pub dwSize: u32,
    pub dwFlags: u32,
    pub dwIfIndex: u32,
    pub localEndPoint: RASTUNNELENDPOINT,
    pub remoteEndPoint: RASTUNNELENDPOINT,
}

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

type RASTUNNELENDPOINT struct {
	dwType uint32
	Anonymous _Anonymous_e__Union
}

type RASUPDATECONN struct {
	version int32
	dwSize uint32
	dwFlags uint32
	dwIfIndex uint32
	localEndPoint RASTUNNELENDPOINT
	remoteEndPoint RASTUNNELENDPOINT
}

type
  RASTUNNELENDPOINT = record
    dwType: DWORD;
    Anonymous: _Anonymous_e__Union;
  end;

  RASUPDATECONN = record
    version: Integer;
    dwSize: DWORD;
    dwFlags: DWORD;
    dwIfIndex: DWORD;
    localEndPoint: RASTUNNELENDPOINT;
    remoteEndPoint: RASTUNNELENDPOINT;
  end;

const RASTUNNELENDPOINT = extern struct {
    dwType: u32,
    Anonymous: _Anonymous_e__Union,
};

const RASUPDATECONN = extern struct {
    version: i32,
    dwSize: u32,
    dwFlags: u32,
    dwIfIndex: u32,
    localEndPoint: RASTUNNELENDPOINT,
    remoteEndPoint: RASTUNNELENDPOINT,
};

type
  RASTUNNELENDPOINT {.bycopy.} = object
    dwType: uint32
    Anonymous: _Anonymous_e__Union

  RASUPDATECONN {.bycopy.} = object
    version: int32
    dwSize: uint32
    dwFlags: uint32
    dwIfIndex: uint32
    localEndPoint: RASTUNNELENDPOINT
    remoteEndPoint: RASTUNNELENDPOINT

struct RASTUNNELENDPOINT
{
    uint dwType;
    _Anonymous_e__Union Anonymous;
}

struct RASUPDATECONN
{
    int version;
    uint dwSize;
    uint dwFlags;
    uint dwIfIndex;
    RASTUNNELENDPOINT localEndPoint;
    RASTUNNELENDPOINT remoteEndPoint;
}