MCAST_LEASE_REQUEST

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct IPNG_ADDRESS
{
    public uint IpAddrV4;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)] public byte[] IpAddrV6;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct MCAST_LEASE_REQUEST
{
    public int LeaseStartTime;
    public int MaxLeaseStartTime;
    public uint LeaseDuration;
    public uint MinLeaseDuration;
    public IPNG_ADDRESS ServerAddress;
    public ushort MinAddrCount;
    public ushort AddrCount;
    public IntPtr pAddrBuf;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure IPNG_ADDRESS
    Public IpAddrV4 As UInteger
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=16)> Public IpAddrV6() As Byte
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure MCAST_LEASE_REQUEST
    Public LeaseStartTime As Integer
    Public MaxLeaseStartTime As Integer
    Public LeaseDuration As UInteger
    Public MinLeaseDuration As UInteger
    Public ServerAddress As IPNG_ADDRESS
    Public MinAddrCount As UShort
    Public AddrCount As UShort
    Public pAddrBuf As IntPtr
End Structure

import ctypes
from ctypes import wintypes

class IPNG_ADDRESS(ctypes.Structure):
    _fields_ = [
        ("IpAddrV4", wintypes.DWORD),
        ("IpAddrV6", ctypes.c_ubyte * 16),
    ]

class MCAST_LEASE_REQUEST(ctypes.Structure):
    _fields_ = [
        ("LeaseStartTime", ctypes.c_int),
        ("MaxLeaseStartTime", ctypes.c_int),
        ("LeaseDuration", wintypes.DWORD),
        ("MinLeaseDuration", wintypes.DWORD),
        ("ServerAddress", IPNG_ADDRESS),
        ("MinAddrCount", ctypes.c_ushort),
        ("AddrCount", ctypes.c_ushort),
        ("pAddrBuf", ctypes.c_void_p),
    ]

#[repr(C)]
pub struct IPNG_ADDRESS {
    pub IpAddrV4: u32,
    pub IpAddrV6: [u8; 16],
}

#[repr(C)]
pub struct MCAST_LEASE_REQUEST {
    pub LeaseStartTime: i32,
    pub MaxLeaseStartTime: i32,
    pub LeaseDuration: u32,
    pub MinLeaseDuration: u32,
    pub ServerAddress: IPNG_ADDRESS,
    pub MinAddrCount: u16,
    pub AddrCount: u16,
    pub pAddrBuf: *mut core::ffi::c_void,
}

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

type IPNG_ADDRESS struct {
	IpAddrV4 uint32
	IpAddrV6 [16]byte
}

type MCAST_LEASE_REQUEST struct {
	LeaseStartTime int32
	MaxLeaseStartTime int32
	LeaseDuration uint32
	MinLeaseDuration uint32
	ServerAddress IPNG_ADDRESS
	MinAddrCount uint16
	AddrCount uint16
	pAddrBuf uintptr
}

type
  IPNG_ADDRESS = record
    IpAddrV4: DWORD;
    IpAddrV6: array[0..15] of Byte;
  end;

  MCAST_LEASE_REQUEST = record
    LeaseStartTime: Integer;
    MaxLeaseStartTime: Integer;
    LeaseDuration: DWORD;
    MinLeaseDuration: DWORD;
    ServerAddress: IPNG_ADDRESS;
    MinAddrCount: Word;
    AddrCount: Word;
    pAddrBuf: Pointer;
  end;

const IPNG_ADDRESS = extern struct {
    IpAddrV4: u32,
    IpAddrV6: [16]u8,
};

const MCAST_LEASE_REQUEST = extern struct {
    LeaseStartTime: i32,
    MaxLeaseStartTime: i32,
    LeaseDuration: u32,
    MinLeaseDuration: u32,
    ServerAddress: IPNG_ADDRESS,
    MinAddrCount: u16,
    AddrCount: u16,
    pAddrBuf: ?*anyopaque,
};

type
  IPNG_ADDRESS {.bycopy.} = object
    IpAddrV4: uint32
    IpAddrV6: array[16, uint8]

  MCAST_LEASE_REQUEST {.bycopy.} = object
    LeaseStartTime: int32
    MaxLeaseStartTime: int32
    LeaseDuration: uint32
    MinLeaseDuration: uint32
    ServerAddress: IPNG_ADDRESS
    MinAddrCount: uint16
    AddrCount: uint16
    pAddrBuf: pointer

struct IPNG_ADDRESS
{
    uint IpAddrV4;
    ubyte[16] IpAddrV6;
}

struct MCAST_LEASE_REQUEST
{
    int LeaseStartTime;
    int MaxLeaseStartTime;
    uint LeaseDuration;
    uint MinLeaseDuration;
    IPNG_ADDRESS ServerAddress;
    ushort MinAddrCount;
    ushort AddrCount;
    void* pAddrBuf;
}