DDHAL_GETHEAPALIGNMENTDATA

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct DDSCAPS
{
    public uint dwCaps;
}

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

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct HEAPALIGNMENT
{
    public uint dwSize;
    public DDSCAPS ddsCaps;
    public uint dwReserved;
    public SURFACEALIGNMENT ExecuteBuffer;
    public SURFACEALIGNMENT Overlay;
    public SURFACEALIGNMENT Texture;
    public SURFACEALIGNMENT ZBuffer;
    public SURFACEALIGNMENT AlphaBuffer;
    public SURFACEALIGNMENT Offscreen;
    public SURFACEALIGNMENT FlipTarget;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct DDHAL_GETHEAPALIGNMENTDATA
{
    public UIntPtr dwInstance;
    public uint dwHeap;
    public int ddRVal;
    public IntPtr GetHeapAlignment;
    public HEAPALIGNMENT Alignment;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure DDSCAPS
    Public dwCaps As UInteger
End Structure

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

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure HEAPALIGNMENT
    Public dwSize As UInteger
    Public ddsCaps As DDSCAPS
    Public dwReserved As UInteger
    Public ExecuteBuffer As SURFACEALIGNMENT
    Public Overlay As SURFACEALIGNMENT
    Public Texture As SURFACEALIGNMENT
    Public ZBuffer As SURFACEALIGNMENT
    Public AlphaBuffer As SURFACEALIGNMENT
    Public Offscreen As SURFACEALIGNMENT
    Public FlipTarget As SURFACEALIGNMENT
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure DDHAL_GETHEAPALIGNMENTDATA
    Public dwInstance As UIntPtr
    Public dwHeap As UInteger
    Public ddRVal As Integer
    Public GetHeapAlignment As IntPtr
    Public Alignment As HEAPALIGNMENT
End Structure

import ctypes
from ctypes import wintypes

class DDSCAPS(ctypes.Structure):
    _fields_ = [
        ("dwCaps", wintypes.DWORD),
    ]

class SURFACEALIGNMENT(ctypes.Structure):
    _fields_ = [
        ("Anonymous", _Anonymous_e__Union),
    ]

class HEAPALIGNMENT(ctypes.Structure):
    _fields_ = [
        ("dwSize", wintypes.DWORD),
        ("ddsCaps", DDSCAPS),
        ("dwReserved", wintypes.DWORD),
        ("ExecuteBuffer", SURFACEALIGNMENT),
        ("Overlay", SURFACEALIGNMENT),
        ("Texture", SURFACEALIGNMENT),
        ("ZBuffer", SURFACEALIGNMENT),
        ("AlphaBuffer", SURFACEALIGNMENT),
        ("Offscreen", SURFACEALIGNMENT),
        ("FlipTarget", SURFACEALIGNMENT),
    ]

class DDHAL_GETHEAPALIGNMENTDATA(ctypes.Structure):
    _fields_ = [
        ("dwInstance", ctypes.c_size_t),
        ("dwHeap", wintypes.DWORD),
        ("ddRVal", ctypes.c_int),
        ("GetHeapAlignment", ctypes.c_void_p),
        ("Alignment", HEAPALIGNMENT),
    ]

#[repr(C)]
pub struct DDSCAPS {
    pub dwCaps: u32,
}

#[repr(C)]
pub struct SURFACEALIGNMENT {
    pub Anonymous: _Anonymous_e__Union,
}

#[repr(C)]
pub struct HEAPALIGNMENT {
    pub dwSize: u32,
    pub ddsCaps: DDSCAPS,
    pub dwReserved: u32,
    pub ExecuteBuffer: SURFACEALIGNMENT,
    pub Overlay: SURFACEALIGNMENT,
    pub Texture: SURFACEALIGNMENT,
    pub ZBuffer: SURFACEALIGNMENT,
    pub AlphaBuffer: SURFACEALIGNMENT,
    pub Offscreen: SURFACEALIGNMENT,
    pub FlipTarget: SURFACEALIGNMENT,
}

#[repr(C)]
pub struct DDHAL_GETHEAPALIGNMENTDATA {
    pub dwInstance: usize,
    pub dwHeap: u32,
    pub ddRVal: i32,
    pub GetHeapAlignment: *mut core::ffi::c_void,
    pub Alignment: HEAPALIGNMENT,
}

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

type DDSCAPS struct {
	dwCaps uint32
}

type SURFACEALIGNMENT struct {
	Anonymous _Anonymous_e__Union
}

type HEAPALIGNMENT struct {
	dwSize uint32
	ddsCaps DDSCAPS
	dwReserved uint32
	ExecuteBuffer SURFACEALIGNMENT
	Overlay SURFACEALIGNMENT
	Texture SURFACEALIGNMENT
	ZBuffer SURFACEALIGNMENT
	AlphaBuffer SURFACEALIGNMENT
	Offscreen SURFACEALIGNMENT
	FlipTarget SURFACEALIGNMENT
}

type DDHAL_GETHEAPALIGNMENTDATA struct {
	dwInstance uintptr
	dwHeap uint32
	ddRVal int32
	GetHeapAlignment uintptr
	Alignment HEAPALIGNMENT
}

type
  DDSCAPS = record
    dwCaps: DWORD;
  end;

  SURFACEALIGNMENT = record
    Anonymous: _Anonymous_e__Union;
  end;

  HEAPALIGNMENT = record
    dwSize: DWORD;
    ddsCaps: DDSCAPS;
    dwReserved: DWORD;
    ExecuteBuffer: SURFACEALIGNMENT;
    Overlay: SURFACEALIGNMENT;
    Texture: SURFACEALIGNMENT;
    ZBuffer: SURFACEALIGNMENT;
    AlphaBuffer: SURFACEALIGNMENT;
    Offscreen: SURFACEALIGNMENT;
    FlipTarget: SURFACEALIGNMENT;
  end;

  DDHAL_GETHEAPALIGNMENTDATA = record
    dwInstance: NativeUInt;
    dwHeap: DWORD;
    ddRVal: Integer;
    GetHeapAlignment: Pointer;
    Alignment: HEAPALIGNMENT;
  end;

const DDSCAPS = extern struct {
    dwCaps: u32,
};

const SURFACEALIGNMENT = extern struct {
    Anonymous: _Anonymous_e__Union,
};

const HEAPALIGNMENT = extern struct {
    dwSize: u32,
    ddsCaps: DDSCAPS,
    dwReserved: u32,
    ExecuteBuffer: SURFACEALIGNMENT,
    Overlay: SURFACEALIGNMENT,
    Texture: SURFACEALIGNMENT,
    ZBuffer: SURFACEALIGNMENT,
    AlphaBuffer: SURFACEALIGNMENT,
    Offscreen: SURFACEALIGNMENT,
    FlipTarget: SURFACEALIGNMENT,
};

const DDHAL_GETHEAPALIGNMENTDATA = extern struct {
    dwInstance: usize,
    dwHeap: u32,
    ddRVal: i32,
    GetHeapAlignment: ?*anyopaque,
    Alignment: HEAPALIGNMENT,
};

type
  DDSCAPS {.bycopy.} = object
    dwCaps: uint32

  SURFACEALIGNMENT {.bycopy.} = object
    Anonymous: _Anonymous_e__Union

  HEAPALIGNMENT {.bycopy.} = object
    dwSize: uint32
    ddsCaps: DDSCAPS
    dwReserved: uint32
    ExecuteBuffer: SURFACEALIGNMENT
    Overlay: SURFACEALIGNMENT
    Texture: SURFACEALIGNMENT
    ZBuffer: SURFACEALIGNMENT
    AlphaBuffer: SURFACEALIGNMENT
    Offscreen: SURFACEALIGNMENT
    FlipTarget: SURFACEALIGNMENT

  DDHAL_GETHEAPALIGNMENTDATA {.bycopy.} = object
    dwInstance: uint
    dwHeap: uint32
    ddRVal: int32
    GetHeapAlignment: pointer
    Alignment: HEAPALIGNMENT

struct DDSCAPS
{
    uint dwCaps;
}

struct SURFACEALIGNMENT
{
    _Anonymous_e__Union Anonymous;
}

struct HEAPALIGNMENT
{
    uint dwSize;
    DDSCAPS ddsCaps;
    uint dwReserved;
    SURFACEALIGNMENT ExecuteBuffer;
    SURFACEALIGNMENT Overlay;
    SURFACEALIGNMENT Texture;
    SURFACEALIGNMENT ZBuffer;
    SURFACEALIGNMENT AlphaBuffer;
    SURFACEALIGNMENT Offscreen;
    SURFACEALIGNMENT FlipTarget;
}

struct DDHAL_GETHEAPALIGNMENTDATA
{
    size_t dwInstance;
    uint dwHeap;
    int ddRVal;
    void* GetHeapAlignment;
    HEAPALIGNMENT Alignment;
}