DD_D3DBUFCALLBACKS

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct DD_D3DBUFCALLBACKS
{
    public uint dwSize;
    public uint dwFlags;
    public IntPtr CanCreateD3DBuffer;
    public IntPtr CreateD3DBuffer;
    public IntPtr DestroyD3DBuffer;
    public IntPtr LockD3DBuffer;
    public IntPtr UnlockD3DBuffer;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure DD_D3DBUFCALLBACKS
    Public dwSize As UInteger
    Public dwFlags As UInteger
    Public CanCreateD3DBuffer As IntPtr
    Public CreateD3DBuffer As IntPtr
    Public DestroyD3DBuffer As IntPtr
    Public LockD3DBuffer As IntPtr
    Public UnlockD3DBuffer As IntPtr
End Structure

import ctypes
from ctypes import wintypes

class DD_D3DBUFCALLBACKS(ctypes.Structure):
    _fields_ = [
        ("dwSize", wintypes.DWORD),
        ("dwFlags", wintypes.DWORD),
        ("CanCreateD3DBuffer", ctypes.c_void_p),
        ("CreateD3DBuffer", ctypes.c_void_p),
        ("DestroyD3DBuffer", ctypes.c_void_p),
        ("LockD3DBuffer", ctypes.c_void_p),
        ("UnlockD3DBuffer", ctypes.c_void_p),
    ]

#[repr(C)]
pub struct DD_D3DBUFCALLBACKS {
    pub dwSize: u32,
    pub dwFlags: u32,
    pub CanCreateD3DBuffer: *mut core::ffi::c_void,
    pub CreateD3DBuffer: *mut core::ffi::c_void,
    pub DestroyD3DBuffer: *mut core::ffi::c_void,
    pub LockD3DBuffer: *mut core::ffi::c_void,
    pub UnlockD3DBuffer: *mut core::ffi::c_void,
}

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

type DD_D3DBUFCALLBACKS struct {
	dwSize uint32
	dwFlags uint32
	CanCreateD3DBuffer uintptr
	CreateD3DBuffer uintptr
	DestroyD3DBuffer uintptr
	LockD3DBuffer uintptr
	UnlockD3DBuffer uintptr
}

type
  DD_D3DBUFCALLBACKS = record
    dwSize: DWORD;
    dwFlags: DWORD;
    CanCreateD3DBuffer: Pointer;
    CreateD3DBuffer: Pointer;
    DestroyD3DBuffer: Pointer;
    LockD3DBuffer: Pointer;
    UnlockD3DBuffer: Pointer;
  end;

const DD_D3DBUFCALLBACKS = extern struct {
    dwSize: u32,
    dwFlags: u32,
    CanCreateD3DBuffer: ?*anyopaque,
    CreateD3DBuffer: ?*anyopaque,
    DestroyD3DBuffer: ?*anyopaque,
    LockD3DBuffer: ?*anyopaque,
    UnlockD3DBuffer: ?*anyopaque,
};

type
  DD_D3DBUFCALLBACKS {.bycopy.} = object
    dwSize: uint32
    dwFlags: uint32
    CanCreateD3DBuffer: pointer
    CreateD3DBuffer: pointer
    DestroyD3DBuffer: pointer
    LockD3DBuffer: pointer
    UnlockD3DBuffer: pointer

struct DD_D3DBUFCALLBACKS
{
    uint dwSize;
    uint dwFlags;
    void* CanCreateD3DBuffer;
    void* CreateD3DBuffer;
    void* DestroyD3DBuffer;
    void* LockD3DBuffer;
    void* UnlockD3DBuffer;
}