DHCP_IP_RESERVATION_V6

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct DHCP_IPV6_ADDRESS
{
    public ulong HighOrderBits;
    public ulong LowOrderBits;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct DHCP_IP_RESERVATION_V6
{
    public DHCP_IPV6_ADDRESS ReservedIpAddress;
    public IntPtr ReservedForClient;
    public uint InterfaceId;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure DHCP_IPV6_ADDRESS
    Public HighOrderBits As ULong
    Public LowOrderBits As ULong
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure DHCP_IP_RESERVATION_V6
    Public ReservedIpAddress As DHCP_IPV6_ADDRESS
    Public ReservedForClient As IntPtr
    Public InterfaceId As UInteger
End Structure

import ctypes
from ctypes import wintypes

class DHCP_IPV6_ADDRESS(ctypes.Structure):
    _fields_ = [
        ("HighOrderBits", ctypes.c_ulonglong),
        ("LowOrderBits", ctypes.c_ulonglong),
    ]

class DHCP_IP_RESERVATION_V6(ctypes.Structure):
    _fields_ = [
        ("ReservedIpAddress", DHCP_IPV6_ADDRESS),
        ("ReservedForClient", ctypes.c_void_p),
        ("InterfaceId", wintypes.DWORD),
    ]

#[repr(C)]
pub struct DHCP_IPV6_ADDRESS {
    pub HighOrderBits: u64,
    pub LowOrderBits: u64,
}

#[repr(C)]
pub struct DHCP_IP_RESERVATION_V6 {
    pub ReservedIpAddress: DHCP_IPV6_ADDRESS,
    pub ReservedForClient: *mut core::ffi::c_void,
    pub InterfaceId: u32,
}

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

type DHCP_IPV6_ADDRESS struct {
	HighOrderBits uint64
	LowOrderBits uint64
}

type DHCP_IP_RESERVATION_V6 struct {
	ReservedIpAddress DHCP_IPV6_ADDRESS
	ReservedForClient uintptr
	InterfaceId uint32
}

type
  DHCP_IPV6_ADDRESS = record
    HighOrderBits: UInt64;
    LowOrderBits: UInt64;
  end;

  DHCP_IP_RESERVATION_V6 = record
    ReservedIpAddress: DHCP_IPV6_ADDRESS;
    ReservedForClient: Pointer;
    InterfaceId: DWORD;
  end;

const DHCP_IPV6_ADDRESS = extern struct {
    HighOrderBits: u64,
    LowOrderBits: u64,
};

const DHCP_IP_RESERVATION_V6 = extern struct {
    ReservedIpAddress: DHCP_IPV6_ADDRESS,
    ReservedForClient: ?*anyopaque,
    InterfaceId: u32,
};

type
  DHCP_IPV6_ADDRESS {.bycopy.} = object
    HighOrderBits: uint64
    LowOrderBits: uint64

  DHCP_IP_RESERVATION_V6 {.bycopy.} = object
    ReservedIpAddress: DHCP_IPV6_ADDRESS
    ReservedForClient: pointer
    InterfaceId: uint32

struct DHCP_IPV6_ADDRESS
{
    ulong HighOrderBits;
    ulong LowOrderBits;
}

struct DHCP_IP_RESERVATION_V6
{
    DHCP_IPV6_ADDRESS ReservedIpAddress;
    void* ReservedForClient;
    uint InterfaceId;
}