WS_CUSTOM_CHANNEL_CALLBACKS

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct WS_CUSTOM_CHANNEL_CALLBACKS
{
    public IntPtr createChannelCallback;
    public IntPtr freeChannelCallback;
    public IntPtr resetChannelCallback;
    public IntPtr openChannelCallback;
    public IntPtr closeChannelCallback;
    public IntPtr abortChannelCallback;
    public IntPtr getChannelPropertyCallback;
    public IntPtr setChannelPropertyCallback;
    public IntPtr writeMessageStartCallback;
    public IntPtr writeMessageEndCallback;
    public IntPtr readMessageStartCallback;
    public IntPtr readMessageEndCallback;
    public IntPtr abandonMessageCallback;
    public IntPtr shutdownSessionChannelCallback;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure WS_CUSTOM_CHANNEL_CALLBACKS
    Public createChannelCallback As IntPtr
    Public freeChannelCallback As IntPtr
    Public resetChannelCallback As IntPtr
    Public openChannelCallback As IntPtr
    Public closeChannelCallback As IntPtr
    Public abortChannelCallback As IntPtr
    Public getChannelPropertyCallback As IntPtr
    Public setChannelPropertyCallback As IntPtr
    Public writeMessageStartCallback As IntPtr
    Public writeMessageEndCallback As IntPtr
    Public readMessageStartCallback As IntPtr
    Public readMessageEndCallback As IntPtr
    Public abandonMessageCallback As IntPtr
    Public shutdownSessionChannelCallback As IntPtr
End Structure

import ctypes
from ctypes import wintypes

class WS_CUSTOM_CHANNEL_CALLBACKS(ctypes.Structure):
    _fields_ = [
        ("createChannelCallback", ctypes.c_void_p),
        ("freeChannelCallback", ctypes.c_void_p),
        ("resetChannelCallback", ctypes.c_void_p),
        ("openChannelCallback", ctypes.c_void_p),
        ("closeChannelCallback", ctypes.c_void_p),
        ("abortChannelCallback", ctypes.c_void_p),
        ("getChannelPropertyCallback", ctypes.c_void_p),
        ("setChannelPropertyCallback", ctypes.c_void_p),
        ("writeMessageStartCallback", ctypes.c_void_p),
        ("writeMessageEndCallback", ctypes.c_void_p),
        ("readMessageStartCallback", ctypes.c_void_p),
        ("readMessageEndCallback", ctypes.c_void_p),
        ("abandonMessageCallback", ctypes.c_void_p),
        ("shutdownSessionChannelCallback", ctypes.c_void_p),
    ]

#[repr(C)]
pub struct WS_CUSTOM_CHANNEL_CALLBACKS {
    pub createChannelCallback: *mut core::ffi::c_void,
    pub freeChannelCallback: *mut core::ffi::c_void,
    pub resetChannelCallback: *mut core::ffi::c_void,
    pub openChannelCallback: *mut core::ffi::c_void,
    pub closeChannelCallback: *mut core::ffi::c_void,
    pub abortChannelCallback: *mut core::ffi::c_void,
    pub getChannelPropertyCallback: *mut core::ffi::c_void,
    pub setChannelPropertyCallback: *mut core::ffi::c_void,
    pub writeMessageStartCallback: *mut core::ffi::c_void,
    pub writeMessageEndCallback: *mut core::ffi::c_void,
    pub readMessageStartCallback: *mut core::ffi::c_void,
    pub readMessageEndCallback: *mut core::ffi::c_void,
    pub abandonMessageCallback: *mut core::ffi::c_void,
    pub shutdownSessionChannelCallback: *mut core::ffi::c_void,
}

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

type WS_CUSTOM_CHANNEL_CALLBACKS struct {
	createChannelCallback uintptr
	freeChannelCallback uintptr
	resetChannelCallback uintptr
	openChannelCallback uintptr
	closeChannelCallback uintptr
	abortChannelCallback uintptr
	getChannelPropertyCallback uintptr
	setChannelPropertyCallback uintptr
	writeMessageStartCallback uintptr
	writeMessageEndCallback uintptr
	readMessageStartCallback uintptr
	readMessageEndCallback uintptr
	abandonMessageCallback uintptr
	shutdownSessionChannelCallback uintptr
}

type
  WS_CUSTOM_CHANNEL_CALLBACKS = record
    createChannelCallback: Pointer;
    freeChannelCallback: Pointer;
    resetChannelCallback: Pointer;
    openChannelCallback: Pointer;
    closeChannelCallback: Pointer;
    abortChannelCallback: Pointer;
    getChannelPropertyCallback: Pointer;
    setChannelPropertyCallback: Pointer;
    writeMessageStartCallback: Pointer;
    writeMessageEndCallback: Pointer;
    readMessageStartCallback: Pointer;
    readMessageEndCallback: Pointer;
    abandonMessageCallback: Pointer;
    shutdownSessionChannelCallback: Pointer;
  end;

const WS_CUSTOM_CHANNEL_CALLBACKS = extern struct {
    createChannelCallback: ?*anyopaque,
    freeChannelCallback: ?*anyopaque,
    resetChannelCallback: ?*anyopaque,
    openChannelCallback: ?*anyopaque,
    closeChannelCallback: ?*anyopaque,
    abortChannelCallback: ?*anyopaque,
    getChannelPropertyCallback: ?*anyopaque,
    setChannelPropertyCallback: ?*anyopaque,
    writeMessageStartCallback: ?*anyopaque,
    writeMessageEndCallback: ?*anyopaque,
    readMessageStartCallback: ?*anyopaque,
    readMessageEndCallback: ?*anyopaque,
    abandonMessageCallback: ?*anyopaque,
    shutdownSessionChannelCallback: ?*anyopaque,
};

type
  WS_CUSTOM_CHANNEL_CALLBACKS {.bycopy.} = object
    createChannelCallback: pointer
    freeChannelCallback: pointer
    resetChannelCallback: pointer
    openChannelCallback: pointer
    closeChannelCallback: pointer
    abortChannelCallback: pointer
    getChannelPropertyCallback: pointer
    setChannelPropertyCallback: pointer
    writeMessageStartCallback: pointer
    writeMessageEndCallback: pointer
    readMessageStartCallback: pointer
    readMessageEndCallback: pointer
    abandonMessageCallback: pointer
    shutdownSessionChannelCallback: pointer

struct WS_CUSTOM_CHANNEL_CALLBACKS
{
    void* createChannelCallback;
    void* freeChannelCallback;
    void* resetChannelCallback;
    void* openChannelCallback;
    void* closeChannelCallback;
    void* abortChannelCallback;
    void* getChannelPropertyCallback;
    void* setChannelPropertyCallback;
    void* writeMessageStartCallback;
    void* writeMessageEndCallback;
    void* readMessageStartCallback;
    void* readMessageEndCallback;
    void* abandonMessageCallback;
    void* shutdownSessionChannelCallback;
}