DD_SURFACECALLBACKS

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct DD_SURFACECALLBACKS
{
    public uint dwSize;
    public uint dwFlags;
    public IntPtr DestroySurface;
    public IntPtr Flip;
    public IntPtr SetClipList;
    public IntPtr Lock;
    public IntPtr Unlock;
    public IntPtr Blt;
    public IntPtr SetColorKey;
    public IntPtr AddAttachedSurface;
    public IntPtr GetBltStatus;
    public IntPtr GetFlipStatus;
    public IntPtr UpdateOverlay;
    public IntPtr SetOverlayPosition;
    public IntPtr reserved4;
    public IntPtr SetPalette;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure DD_SURFACECALLBACKS
    Public dwSize As UInteger
    Public dwFlags As UInteger
    Public DestroySurface As IntPtr
    Public Flip As IntPtr
    Public SetClipList As IntPtr
    Public Lock As IntPtr
    Public Unlock As IntPtr
    Public Blt As IntPtr
    Public SetColorKey As IntPtr
    Public AddAttachedSurface As IntPtr
    Public GetBltStatus As IntPtr
    Public GetFlipStatus As IntPtr
    Public UpdateOverlay As IntPtr
    Public SetOverlayPosition As IntPtr
    Public reserved4 As IntPtr
    Public SetPalette As IntPtr
End Structure

import ctypes
from ctypes import wintypes

class DD_SURFACECALLBACKS(ctypes.Structure):
    _fields_ = [
        ("dwSize", wintypes.DWORD),
        ("dwFlags", wintypes.DWORD),
        ("DestroySurface", ctypes.c_void_p),
        ("Flip", ctypes.c_void_p),
        ("SetClipList", ctypes.c_void_p),
        ("Lock", ctypes.c_void_p),
        ("Unlock", ctypes.c_void_p),
        ("Blt", ctypes.c_void_p),
        ("SetColorKey", ctypes.c_void_p),
        ("AddAttachedSurface", ctypes.c_void_p),
        ("GetBltStatus", ctypes.c_void_p),
        ("GetFlipStatus", ctypes.c_void_p),
        ("UpdateOverlay", ctypes.c_void_p),
        ("SetOverlayPosition", ctypes.c_void_p),
        ("reserved4", ctypes.c_void_p),
        ("SetPalette", ctypes.c_void_p),
    ]

#[repr(C)]
pub struct DD_SURFACECALLBACKS {
    pub dwSize: u32,
    pub dwFlags: u32,
    pub DestroySurface: *mut core::ffi::c_void,
    pub Flip: *mut core::ffi::c_void,
    pub SetClipList: *mut core::ffi::c_void,
    pub Lock: *mut core::ffi::c_void,
    pub Unlock: *mut core::ffi::c_void,
    pub Blt: *mut core::ffi::c_void,
    pub SetColorKey: *mut core::ffi::c_void,
    pub AddAttachedSurface: *mut core::ffi::c_void,
    pub GetBltStatus: *mut core::ffi::c_void,
    pub GetFlipStatus: *mut core::ffi::c_void,
    pub UpdateOverlay: *mut core::ffi::c_void,
    pub SetOverlayPosition: *mut core::ffi::c_void,
    pub reserved4: *mut core::ffi::c_void,
    pub SetPalette: *mut core::ffi::c_void,
}

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

type DD_SURFACECALLBACKS struct {
	dwSize uint32
	dwFlags uint32
	DestroySurface uintptr
	Flip uintptr
	SetClipList uintptr
	Lock uintptr
	Unlock uintptr
	Blt uintptr
	SetColorKey uintptr
	AddAttachedSurface uintptr
	GetBltStatus uintptr
	GetFlipStatus uintptr
	UpdateOverlay uintptr
	SetOverlayPosition uintptr
	reserved4 uintptr
	SetPalette uintptr
}

type
  DD_SURFACECALLBACKS = record
    dwSize: DWORD;
    dwFlags: DWORD;
    DestroySurface: Pointer;
    Flip: Pointer;
    SetClipList: Pointer;
    Lock: Pointer;
    Unlock: Pointer;
    Blt: Pointer;
    SetColorKey: Pointer;
    AddAttachedSurface: Pointer;
    GetBltStatus: Pointer;
    GetFlipStatus: Pointer;
    UpdateOverlay: Pointer;
    SetOverlayPosition: Pointer;
    reserved4: Pointer;
    SetPalette: Pointer;
  end;

const DD_SURFACECALLBACKS = extern struct {
    dwSize: u32,
    dwFlags: u32,
    DestroySurface: ?*anyopaque,
    Flip: ?*anyopaque,
    SetClipList: ?*anyopaque,
    Lock: ?*anyopaque,
    Unlock: ?*anyopaque,
    Blt: ?*anyopaque,
    SetColorKey: ?*anyopaque,
    AddAttachedSurface: ?*anyopaque,
    GetBltStatus: ?*anyopaque,
    GetFlipStatus: ?*anyopaque,
    UpdateOverlay: ?*anyopaque,
    SetOverlayPosition: ?*anyopaque,
    reserved4: ?*anyopaque,
    SetPalette: ?*anyopaque,
};

type
  DD_SURFACECALLBACKS {.bycopy.} = object
    dwSize: uint32
    dwFlags: uint32
    DestroySurface: pointer
    Flip: pointer
    SetClipList: pointer
    Lock: pointer
    Unlock: pointer
    Blt: pointer
    SetColorKey: pointer
    AddAttachedSurface: pointer
    GetBltStatus: pointer
    GetFlipStatus: pointer
    UpdateOverlay: pointer
    SetOverlayPosition: pointer
    reserved4: pointer
    SetPalette: pointer

struct DD_SURFACECALLBACKS
{
    uint dwSize;
    uint dwFlags;
    void* DestroySurface;
    void* Flip;
    void* SetClipList;
    void* Lock;
    void* Unlock;
    void* Blt;
    void* SetColorKey;
    void* AddAttachedSurface;
    void* GetBltStatus;
    void* GetFlipStatus;
    void* UpdateOverlay;
    void* SetOverlayPosition;
    void* reserved4;
    void* SetPalette;
}