PRJ_CALLBACKS

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct PRJ_CALLBACKS
{
    public IntPtr StartDirectoryEnumerationCallback;
    public IntPtr EndDirectoryEnumerationCallback;
    public IntPtr GetDirectoryEnumerationCallback;
    public IntPtr GetPlaceholderInfoCallback;
    public IntPtr GetFileDataCallback;
    public IntPtr QueryFileNameCallback;
    public IntPtr NotificationCallback;
    public IntPtr CancelCommandCallback;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure PRJ_CALLBACKS
    Public StartDirectoryEnumerationCallback As IntPtr
    Public EndDirectoryEnumerationCallback As IntPtr
    Public GetDirectoryEnumerationCallback As IntPtr
    Public GetPlaceholderInfoCallback As IntPtr
    Public GetFileDataCallback As IntPtr
    Public QueryFileNameCallback As IntPtr
    Public NotificationCallback As IntPtr
    Public CancelCommandCallback As IntPtr
End Structure

import ctypes
from ctypes import wintypes

class PRJ_CALLBACKS(ctypes.Structure):
    _fields_ = [
        ("StartDirectoryEnumerationCallback", ctypes.c_void_p),
        ("EndDirectoryEnumerationCallback", ctypes.c_void_p),
        ("GetDirectoryEnumerationCallback", ctypes.c_void_p),
        ("GetPlaceholderInfoCallback", ctypes.c_void_p),
        ("GetFileDataCallback", ctypes.c_void_p),
        ("QueryFileNameCallback", ctypes.c_void_p),
        ("NotificationCallback", ctypes.c_void_p),
        ("CancelCommandCallback", ctypes.c_void_p),
    ]

#[repr(C)]
pub struct PRJ_CALLBACKS {
    pub StartDirectoryEnumerationCallback: *mut core::ffi::c_void,
    pub EndDirectoryEnumerationCallback: *mut core::ffi::c_void,
    pub GetDirectoryEnumerationCallback: *mut core::ffi::c_void,
    pub GetPlaceholderInfoCallback: *mut core::ffi::c_void,
    pub GetFileDataCallback: *mut core::ffi::c_void,
    pub QueryFileNameCallback: *mut core::ffi::c_void,
    pub NotificationCallback: *mut core::ffi::c_void,
    pub CancelCommandCallback: *mut core::ffi::c_void,
}

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

type PRJ_CALLBACKS struct {
	StartDirectoryEnumerationCallback uintptr
	EndDirectoryEnumerationCallback uintptr
	GetDirectoryEnumerationCallback uintptr
	GetPlaceholderInfoCallback uintptr
	GetFileDataCallback uintptr
	QueryFileNameCallback uintptr
	NotificationCallback uintptr
	CancelCommandCallback uintptr
}

type
  PRJ_CALLBACKS = record
    StartDirectoryEnumerationCallback: Pointer;
    EndDirectoryEnumerationCallback: Pointer;
    GetDirectoryEnumerationCallback: Pointer;
    GetPlaceholderInfoCallback: Pointer;
    GetFileDataCallback: Pointer;
    QueryFileNameCallback: Pointer;
    NotificationCallback: Pointer;
    CancelCommandCallback: Pointer;
  end;

const PRJ_CALLBACKS = extern struct {
    StartDirectoryEnumerationCallback: ?*anyopaque,
    EndDirectoryEnumerationCallback: ?*anyopaque,
    GetDirectoryEnumerationCallback: ?*anyopaque,
    GetPlaceholderInfoCallback: ?*anyopaque,
    GetFileDataCallback: ?*anyopaque,
    QueryFileNameCallback: ?*anyopaque,
    NotificationCallback: ?*anyopaque,
    CancelCommandCallback: ?*anyopaque,
};

type
  PRJ_CALLBACKS {.bycopy.} = object
    StartDirectoryEnumerationCallback: pointer
    EndDirectoryEnumerationCallback: pointer
    GetDirectoryEnumerationCallback: pointer
    GetPlaceholderInfoCallback: pointer
    GetFileDataCallback: pointer
    QueryFileNameCallback: pointer
    NotificationCallback: pointer
    CancelCommandCallback: pointer

struct PRJ_CALLBACKS
{
    void* StartDirectoryEnumerationCallback;
    void* EndDirectoryEnumerationCallback;
    void* GetDirectoryEnumerationCallback;
    void* GetPlaceholderInfoCallback;
    void* GetFileDataCallback;
    void* QueryFileNameCallback;
    void* NotificationCallback;
    void* CancelCommandCallback;
}