RTM_DEST_INFO

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct RTM_NET_ADDRESS
{
    public ushort AddressFamily;
    public ushort NumBits;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)] public byte[] AddrBits;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct FILETIME
{
    public uint dwLowDateTime;
    public uint dwHighDateTime;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct RTM_DEST_INFO
{
    public IntPtr DestHandle;
    public RTM_NET_ADDRESS DestAddress;
    public FILETIME LastChanged;
    public uint BelongsToViews;
    public uint NumberOfViews;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 1)] public _Anonymous_e__Struct[] ViewInfo;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure RTM_NET_ADDRESS
    Public AddressFamily As UShort
    Public NumBits As UShort
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=16)> Public AddrBits() As Byte
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure FILETIME
    Public dwLowDateTime As UInteger
    Public dwHighDateTime As UInteger
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure RTM_DEST_INFO
    Public DestHandle As IntPtr
    Public DestAddress As RTM_NET_ADDRESS
    Public LastChanged As FILETIME
    Public BelongsToViews As UInteger
    Public NumberOfViews As UInteger
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=1)> Public ViewInfo() As _Anonymous_e__Struct
End Structure

import ctypes
from ctypes import wintypes

class RTM_NET_ADDRESS(ctypes.Structure):
    _fields_ = [
        ("AddressFamily", ctypes.c_ushort),
        ("NumBits", ctypes.c_ushort),
        ("AddrBits", ctypes.c_ubyte * 16),
    ]

class FILETIME(ctypes.Structure):
    _fields_ = [
        ("dwLowDateTime", wintypes.DWORD),
        ("dwHighDateTime", wintypes.DWORD),
    ]

class RTM_DEST_INFO(ctypes.Structure):
    _fields_ = [
        ("DestHandle", ctypes.c_ssize_t),
        ("DestAddress", RTM_NET_ADDRESS),
        ("LastChanged", FILETIME),
        ("BelongsToViews", wintypes.DWORD),
        ("NumberOfViews", wintypes.DWORD),
        ("ViewInfo", _Anonymous_e__Struct * 1),
    ]

#[repr(C)]
pub struct RTM_NET_ADDRESS {
    pub AddressFamily: u16,
    pub NumBits: u16,
    pub AddrBits: [u8; 16],
}

#[repr(C)]
pub struct FILETIME {
    pub dwLowDateTime: u32,
    pub dwHighDateTime: u32,
}

#[repr(C)]
pub struct RTM_DEST_INFO {
    pub DestHandle: isize,
    pub DestAddress: RTM_NET_ADDRESS,
    pub LastChanged: FILETIME,
    pub BelongsToViews: u32,
    pub NumberOfViews: u32,
    pub ViewInfo: [_Anonymous_e__Struct; 1],
}

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

type RTM_NET_ADDRESS struct {
	AddressFamily uint16
	NumBits uint16
	AddrBits [16]byte
}

type FILETIME struct {
	dwLowDateTime uint32
	dwHighDateTime uint32
}

type RTM_DEST_INFO struct {
	DestHandle uintptr
	DestAddress RTM_NET_ADDRESS
	LastChanged FILETIME
	BelongsToViews uint32
	NumberOfViews uint32
	ViewInfo [1]_Anonymous_e__Struct
}

type
  RTM_NET_ADDRESS = record
    AddressFamily: Word;
    NumBits: Word;
    AddrBits: array[0..15] of Byte;
  end;

  FILETIME = record
    dwLowDateTime: DWORD;
    dwHighDateTime: DWORD;
  end;

  RTM_DEST_INFO = record
    DestHandle: NativeInt;
    DestAddress: RTM_NET_ADDRESS;
    LastChanged: FILETIME;
    BelongsToViews: DWORD;
    NumberOfViews: DWORD;
    ViewInfo: array[0..0] of _Anonymous_e__Struct;
  end;

const RTM_NET_ADDRESS = extern struct {
    AddressFamily: u16,
    NumBits: u16,
    AddrBits: [16]u8,
};

const FILETIME = extern struct {
    dwLowDateTime: u32,
    dwHighDateTime: u32,
};

const RTM_DEST_INFO = extern struct {
    DestHandle: isize,
    DestAddress: RTM_NET_ADDRESS,
    LastChanged: FILETIME,
    BelongsToViews: u32,
    NumberOfViews: u32,
    ViewInfo: [1]_Anonymous_e__Struct,
};

type
  RTM_NET_ADDRESS {.bycopy.} = object
    AddressFamily: uint16
    NumBits: uint16
    AddrBits: array[16, uint8]

  FILETIME {.bycopy.} = object
    dwLowDateTime: uint32
    dwHighDateTime: uint32

  RTM_DEST_INFO {.bycopy.} = object
    DestHandle: int
    DestAddress: RTM_NET_ADDRESS
    LastChanged: FILETIME
    BelongsToViews: uint32
    NumberOfViews: uint32
    ViewInfo: array[1, _Anonymous_e__Struct]

struct RTM_NET_ADDRESS
{
    ushort AddressFamily;
    ushort NumBits;
    ubyte[16] AddrBits;
}

struct FILETIME
{
    uint dwLowDateTime;
    uint dwHighDateTime;
}

struct RTM_DEST_INFO
{
    ptrdiff_t DestHandle;
    RTM_NET_ADDRESS DestAddress;
    FILETIME LastChanged;
    uint BelongsToViews;
    uint NumberOfViews;
    _Anonymous_e__Struct[1] ViewInfo;
}