SECURITY_MESSAGE

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct SECURITY_MESSAGE
{
    public uint dwMsgId;
    public IntPtr hPort;
    public uint dwError;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 257)] public sbyte[] UserName;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)] public sbyte[] Domain;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure SECURITY_MESSAGE
    Public dwMsgId As UInteger
    Public hPort As IntPtr
    Public dwError As UInteger
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=257)> Public UserName() As SByte
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=16)> Public Domain() As SByte
End Structure

import ctypes
from ctypes import wintypes

class SECURITY_MESSAGE(ctypes.Structure):
    _fields_ = [
        ("dwMsgId", wintypes.DWORD),
        ("hPort", ctypes.c_ssize_t),
        ("dwError", wintypes.DWORD),
        ("UserName", ctypes.c_byte * 257),
        ("Domain", ctypes.c_byte * 16),
    ]

#[repr(C)]
pub struct SECURITY_MESSAGE {
    pub dwMsgId: u32,
    pub hPort: isize,
    pub dwError: u32,
    pub UserName: [i8; 257],
    pub Domain: [i8; 16],
}

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

type SECURITY_MESSAGE struct {
	dwMsgId uint32
	hPort uintptr
	dwError uint32
	UserName [257]int8
	Domain [16]int8
}

type
  SECURITY_MESSAGE = record
    dwMsgId: DWORD;
    hPort: NativeInt;
    dwError: DWORD;
    UserName: array[0..256] of Shortint;
    Domain: array[0..15] of Shortint;
  end;

const SECURITY_MESSAGE = extern struct {
    dwMsgId: u32,
    hPort: isize,
    dwError: u32,
    UserName: [257]i8,
    Domain: [16]i8,
};

type
  SECURITY_MESSAGE {.bycopy.} = object
    dwMsgId: uint32
    hPort: int
    dwError: uint32
    UserName: array[257, int8]
    Domain: array[16, int8]

struct SECURITY_MESSAGE
{
    uint dwMsgId;
    ptrdiff_t hPort;
    uint dwError;
    byte[257] UserName;
    byte[16] Domain;
}