DDSURFACEDESC2

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct DDCOLORKEY
{
    public uint dwColorSpaceLowValue;
    public uint dwColorSpaceHighValue;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct DDSCAPS2
{
    public uint dwCaps;
    public uint dwCaps2;
    public uint dwCaps3;
    public _Anonymous_e__Union Anonymous;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct DDSURFACEDESC2
{
    public uint dwSize;
    public uint dwFlags;
    public uint dwHeight;
    public uint dwWidth;
    public _Anonymous1_e__Union Anonymous1;
    public _Anonymous2_e__Union Anonymous2;
    public _Anonymous3_e__Union Anonymous3;
    public uint dwAlphaBitDepth;
    public uint dwReserved;
    public IntPtr lpSurface;
    public _Anonymous4_e__Union Anonymous4;
    public DDCOLORKEY ddckCKDestBlt;
    public DDCOLORKEY ddckCKSrcOverlay;
    public DDCOLORKEY ddckCKSrcBlt;
    public _Anonymous5_e__Union Anonymous5;
    public DDSCAPS2 ddsCaps;
    public uint dwTextureStage;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure DDCOLORKEY
    Public dwColorSpaceLowValue As UInteger
    Public dwColorSpaceHighValue As UInteger
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure DDSCAPS2
    Public dwCaps As UInteger
    Public dwCaps2 As UInteger
    Public dwCaps3 As UInteger
    Public Anonymous As _Anonymous_e__Union
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure DDSURFACEDESC2
    Public dwSize As UInteger
    Public dwFlags As UInteger
    Public dwHeight As UInteger
    Public dwWidth As UInteger
    Public Anonymous1 As _Anonymous1_e__Union
    Public Anonymous2 As _Anonymous2_e__Union
    Public Anonymous3 As _Anonymous3_e__Union
    Public dwAlphaBitDepth As UInteger
    Public dwReserved As UInteger
    Public lpSurface As IntPtr
    Public Anonymous4 As _Anonymous4_e__Union
    Public ddckCKDestBlt As DDCOLORKEY
    Public ddckCKSrcOverlay As DDCOLORKEY
    Public ddckCKSrcBlt As DDCOLORKEY
    Public Anonymous5 As _Anonymous5_e__Union
    Public ddsCaps As DDSCAPS2
    Public dwTextureStage As UInteger
End Structure

import ctypes
from ctypes import wintypes

class DDCOLORKEY(ctypes.Structure):
    _fields_ = [
        ("dwColorSpaceLowValue", wintypes.DWORD),
        ("dwColorSpaceHighValue", wintypes.DWORD),
    ]

class DDSCAPS2(ctypes.Structure):
    _fields_ = [
        ("dwCaps", wintypes.DWORD),
        ("dwCaps2", wintypes.DWORD),
        ("dwCaps3", wintypes.DWORD),
        ("Anonymous", _Anonymous_e__Union),
    ]

class DDSURFACEDESC2(ctypes.Structure):
    _fields_ = [
        ("dwSize", wintypes.DWORD),
        ("dwFlags", wintypes.DWORD),
        ("dwHeight", wintypes.DWORD),
        ("dwWidth", wintypes.DWORD),
        ("Anonymous1", _Anonymous1_e__Union),
        ("Anonymous2", _Anonymous2_e__Union),
        ("Anonymous3", _Anonymous3_e__Union),
        ("dwAlphaBitDepth", wintypes.DWORD),
        ("dwReserved", wintypes.DWORD),
        ("lpSurface", ctypes.c_void_p),
        ("Anonymous4", _Anonymous4_e__Union),
        ("ddckCKDestBlt", DDCOLORKEY),
        ("ddckCKSrcOverlay", DDCOLORKEY),
        ("ddckCKSrcBlt", DDCOLORKEY),
        ("Anonymous5", _Anonymous5_e__Union),
        ("ddsCaps", DDSCAPS2),
        ("dwTextureStage", wintypes.DWORD),
    ]

#[repr(C)]
pub struct DDCOLORKEY {
    pub dwColorSpaceLowValue: u32,
    pub dwColorSpaceHighValue: u32,
}

#[repr(C)]
pub struct DDSCAPS2 {
    pub dwCaps: u32,
    pub dwCaps2: u32,
    pub dwCaps3: u32,
    pub Anonymous: _Anonymous_e__Union,
}

#[repr(C)]
pub struct DDSURFACEDESC2 {
    pub dwSize: u32,
    pub dwFlags: u32,
    pub dwHeight: u32,
    pub dwWidth: u32,
    pub Anonymous1: _Anonymous1_e__Union,
    pub Anonymous2: _Anonymous2_e__Union,
    pub Anonymous3: _Anonymous3_e__Union,
    pub dwAlphaBitDepth: u32,
    pub dwReserved: u32,
    pub lpSurface: *mut core::ffi::c_void,
    pub Anonymous4: _Anonymous4_e__Union,
    pub ddckCKDestBlt: DDCOLORKEY,
    pub ddckCKSrcOverlay: DDCOLORKEY,
    pub ddckCKSrcBlt: DDCOLORKEY,
    pub Anonymous5: _Anonymous5_e__Union,
    pub ddsCaps: DDSCAPS2,
    pub dwTextureStage: u32,
}

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

type DDCOLORKEY struct {
	dwColorSpaceLowValue uint32
	dwColorSpaceHighValue uint32
}

type DDSCAPS2 struct {
	dwCaps uint32
	dwCaps2 uint32
	dwCaps3 uint32
	Anonymous _Anonymous_e__Union
}

type DDSURFACEDESC2 struct {
	dwSize uint32
	dwFlags uint32
	dwHeight uint32
	dwWidth uint32
	Anonymous1 _Anonymous1_e__Union
	Anonymous2 _Anonymous2_e__Union
	Anonymous3 _Anonymous3_e__Union
	dwAlphaBitDepth uint32
	dwReserved uint32
	lpSurface uintptr
	Anonymous4 _Anonymous4_e__Union
	ddckCKDestBlt DDCOLORKEY
	ddckCKSrcOverlay DDCOLORKEY
	ddckCKSrcBlt DDCOLORKEY
	Anonymous5 _Anonymous5_e__Union
	ddsCaps DDSCAPS2
	dwTextureStage uint32
}

type
  DDCOLORKEY = record
    dwColorSpaceLowValue: DWORD;
    dwColorSpaceHighValue: DWORD;
  end;

  DDSCAPS2 = record
    dwCaps: DWORD;
    dwCaps2: DWORD;
    dwCaps3: DWORD;
    Anonymous: _Anonymous_e__Union;
  end;

  DDSURFACEDESC2 = record
    dwSize: DWORD;
    dwFlags: DWORD;
    dwHeight: DWORD;
    dwWidth: DWORD;
    Anonymous1: _Anonymous1_e__Union;
    Anonymous2: _Anonymous2_e__Union;
    Anonymous3: _Anonymous3_e__Union;
    dwAlphaBitDepth: DWORD;
    dwReserved: DWORD;
    lpSurface: Pointer;
    Anonymous4: _Anonymous4_e__Union;
    ddckCKDestBlt: DDCOLORKEY;
    ddckCKSrcOverlay: DDCOLORKEY;
    ddckCKSrcBlt: DDCOLORKEY;
    Anonymous5: _Anonymous5_e__Union;
    ddsCaps: DDSCAPS2;
    dwTextureStage: DWORD;
  end;

const DDCOLORKEY = extern struct {
    dwColorSpaceLowValue: u32,
    dwColorSpaceHighValue: u32,
};

const DDSCAPS2 = extern struct {
    dwCaps: u32,
    dwCaps2: u32,
    dwCaps3: u32,
    Anonymous: _Anonymous_e__Union,
};

const DDSURFACEDESC2 = extern struct {
    dwSize: u32,
    dwFlags: u32,
    dwHeight: u32,
    dwWidth: u32,
    Anonymous1: _Anonymous1_e__Union,
    Anonymous2: _Anonymous2_e__Union,
    Anonymous3: _Anonymous3_e__Union,
    dwAlphaBitDepth: u32,
    dwReserved: u32,
    lpSurface: ?*anyopaque,
    Anonymous4: _Anonymous4_e__Union,
    ddckCKDestBlt: DDCOLORKEY,
    ddckCKSrcOverlay: DDCOLORKEY,
    ddckCKSrcBlt: DDCOLORKEY,
    Anonymous5: _Anonymous5_e__Union,
    ddsCaps: DDSCAPS2,
    dwTextureStage: u32,
};

type
  DDCOLORKEY {.bycopy.} = object
    dwColorSpaceLowValue: uint32
    dwColorSpaceHighValue: uint32

  DDSCAPS2 {.bycopy.} = object
    dwCaps: uint32
    dwCaps2: uint32
    dwCaps3: uint32
    Anonymous: _Anonymous_e__Union

  DDSURFACEDESC2 {.bycopy.} = object
    dwSize: uint32
    dwFlags: uint32
    dwHeight: uint32
    dwWidth: uint32
    Anonymous1: _Anonymous1_e__Union
    Anonymous2: _Anonymous2_e__Union
    Anonymous3: _Anonymous3_e__Union
    dwAlphaBitDepth: uint32
    dwReserved: uint32
    lpSurface: pointer
    Anonymous4: _Anonymous4_e__Union
    ddckCKDestBlt: DDCOLORKEY
    ddckCKSrcOverlay: DDCOLORKEY
    ddckCKSrcBlt: DDCOLORKEY
    Anonymous5: _Anonymous5_e__Union
    ddsCaps: DDSCAPS2
    dwTextureStage: uint32

struct DDCOLORKEY
{
    uint dwColorSpaceLowValue;
    uint dwColorSpaceHighValue;
}

struct DDSCAPS2
{
    uint dwCaps;
    uint dwCaps2;
    uint dwCaps3;
    _Anonymous_e__Union Anonymous;
}

struct DDSURFACEDESC2
{
    uint dwSize;
    uint dwFlags;
    uint dwHeight;
    uint dwWidth;
    _Anonymous1_e__Union Anonymous1;
    _Anonymous2_e__Union Anonymous2;
    _Anonymous3_e__Union Anonymous3;
    uint dwAlphaBitDepth;
    uint dwReserved;
    void* lpSurface;
    _Anonymous4_e__Union Anonymous4;
    DDCOLORKEY ddckCKDestBlt;
    DDCOLORKEY ddckCKSrcOverlay;
    DDCOLORKEY ddckCKSrcBlt;
    _Anonymous5_e__Union Anonymous5;
    DDSCAPS2 ddsCaps;
    uint dwTextureStage;
}