ETW_BUFFER_HEADER

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct ETW_BUFFER_CONTEXT
{
    public _Anonymous_e__Union Anonymous;
    public ushort LoggerId;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct ETW_BUFFER_HEADER
{
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)] public uint[] Reserved1;
    public long TimeStamp;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)] public uint[] Reserved2;
    public ETW_BUFFER_CONTEXT ClientContext;
    public uint Reserved3;
    public uint FilledBytes;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 5)] public uint[] Reserved4;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure ETW_BUFFER_CONTEXT
    Public Anonymous As _Anonymous_e__Union
    Public LoggerId As UShort
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure ETW_BUFFER_HEADER
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=4)> Public Reserved1() As UInteger
    Public TimeStamp As Long
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=4)> Public Reserved2() As UInteger
    Public ClientContext As ETW_BUFFER_CONTEXT
    Public Reserved3 As UInteger
    Public FilledBytes As UInteger
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=5)> Public Reserved4() As UInteger
End Structure

import ctypes
from ctypes import wintypes

class ETW_BUFFER_CONTEXT(ctypes.Structure):
    _fields_ = [
        ("Anonymous", _Anonymous_e__Union),
        ("LoggerId", ctypes.c_ushort),
    ]

class ETW_BUFFER_HEADER(ctypes.Structure):
    _fields_ = [
        ("Reserved1", wintypes.DWORD * 4),
        ("TimeStamp", ctypes.c_longlong),
        ("Reserved2", wintypes.DWORD * 4),
        ("ClientContext", ETW_BUFFER_CONTEXT),
        ("Reserved3", wintypes.DWORD),
        ("FilledBytes", wintypes.DWORD),
        ("Reserved4", wintypes.DWORD * 5),
    ]

#[repr(C)]
pub struct ETW_BUFFER_CONTEXT {
    pub Anonymous: _Anonymous_e__Union,
    pub LoggerId: u16,
}

#[repr(C)]
pub struct ETW_BUFFER_HEADER {
    pub Reserved1: [u32; 4],
    pub TimeStamp: i64,
    pub Reserved2: [u32; 4],
    pub ClientContext: ETW_BUFFER_CONTEXT,
    pub Reserved3: u32,
    pub FilledBytes: u32,
    pub Reserved4: [u32; 5],
}

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

type ETW_BUFFER_CONTEXT struct {
	Anonymous _Anonymous_e__Union
	LoggerId uint16
}

type ETW_BUFFER_HEADER struct {
	Reserved1 [4]uint32
	TimeStamp int64
	Reserved2 [4]uint32
	ClientContext ETW_BUFFER_CONTEXT
	Reserved3 uint32
	FilledBytes uint32
	Reserved4 [5]uint32
}

type
  ETW_BUFFER_CONTEXT = record
    Anonymous: _Anonymous_e__Union;
    LoggerId: Word;
  end;

  ETW_BUFFER_HEADER = record
    Reserved1: array[0..3] of DWORD;
    TimeStamp: Int64;
    Reserved2: array[0..3] of DWORD;
    ClientContext: ETW_BUFFER_CONTEXT;
    Reserved3: DWORD;
    FilledBytes: DWORD;
    Reserved4: array[0..4] of DWORD;
  end;

const ETW_BUFFER_CONTEXT = extern struct {
    Anonymous: _Anonymous_e__Union,
    LoggerId: u16,
};

const ETW_BUFFER_HEADER = extern struct {
    Reserved1: [4]u32,
    TimeStamp: i64,
    Reserved2: [4]u32,
    ClientContext: ETW_BUFFER_CONTEXT,
    Reserved3: u32,
    FilledBytes: u32,
    Reserved4: [5]u32,
};

type
  ETW_BUFFER_CONTEXT {.bycopy.} = object
    Anonymous: _Anonymous_e__Union
    LoggerId: uint16

  ETW_BUFFER_HEADER {.bycopy.} = object
    Reserved1: array[4, uint32]
    TimeStamp: int64
    Reserved2: array[4, uint32]
    ClientContext: ETW_BUFFER_CONTEXT
    Reserved3: uint32
    FilledBytes: uint32
    Reserved4: array[5, uint32]

struct ETW_BUFFER_CONTEXT
{
    _Anonymous_e__Union Anonymous;
    ushort LoggerId;
}

struct ETW_BUFFER_HEADER
{
    uint[4] Reserved1;
    long TimeStamp;
    uint[4] Reserved2;
    ETW_BUFFER_CONTEXT ClientContext;
    uint Reserved3;
    uint FilledBytes;
    uint[5] Reserved4;
}