DD_CREATEMOCOMPDATA

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct DDPIXELFORMAT
{
    public uint dwSize;
    public uint dwFlags;
    public uint dwFourCC;
    public _Anonymous1_e__Union Anonymous1;
    public _Anonymous2_e__Union Anonymous2;
    public _Anonymous3_e__Union Anonymous3;
    public _Anonymous4_e__Union Anonymous4;
    public _Anonymous5_e__Union Anonymous5;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct DD_CREATEMOCOMPDATA
{
    public IntPtr lpDD;
    public IntPtr lpMoComp;
    public IntPtr lpGuid;
    public uint dwUncompWidth;
    public uint dwUncompHeight;
    public DDPIXELFORMAT ddUncompPixelFormat;
    public IntPtr lpData;
    public uint dwDataSize;
    public int ddRVal;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure DDPIXELFORMAT
    Public dwSize As UInteger
    Public dwFlags As UInteger
    Public dwFourCC As UInteger
    Public Anonymous1 As _Anonymous1_e__Union
    Public Anonymous2 As _Anonymous2_e__Union
    Public Anonymous3 As _Anonymous3_e__Union
    Public Anonymous4 As _Anonymous4_e__Union
    Public Anonymous5 As _Anonymous5_e__Union
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure DD_CREATEMOCOMPDATA
    Public lpDD As IntPtr
    Public lpMoComp As IntPtr
    Public lpGuid As IntPtr
    Public dwUncompWidth As UInteger
    Public dwUncompHeight As UInteger
    Public ddUncompPixelFormat As DDPIXELFORMAT
    Public lpData As IntPtr
    Public dwDataSize As UInteger
    Public ddRVal As Integer
End Structure

import ctypes
from ctypes import wintypes

class DDPIXELFORMAT(ctypes.Structure):
    _fields_ = [
        ("dwSize", wintypes.DWORD),
        ("dwFlags", wintypes.DWORD),
        ("dwFourCC", wintypes.DWORD),
        ("Anonymous1", _Anonymous1_e__Union),
        ("Anonymous2", _Anonymous2_e__Union),
        ("Anonymous3", _Anonymous3_e__Union),
        ("Anonymous4", _Anonymous4_e__Union),
        ("Anonymous5", _Anonymous5_e__Union),
    ]

class DD_CREATEMOCOMPDATA(ctypes.Structure):
    _fields_ = [
        ("lpDD", ctypes.c_void_p),
        ("lpMoComp", ctypes.c_void_p),
        ("lpGuid", ctypes.c_void_p),
        ("dwUncompWidth", wintypes.DWORD),
        ("dwUncompHeight", wintypes.DWORD),
        ("ddUncompPixelFormat", DDPIXELFORMAT),
        ("lpData", ctypes.c_void_p),
        ("dwDataSize", wintypes.DWORD),
        ("ddRVal", ctypes.c_int),
    ]

#[repr(C)]
pub struct DDPIXELFORMAT {
    pub dwSize: u32,
    pub dwFlags: u32,
    pub dwFourCC: u32,
    pub Anonymous1: _Anonymous1_e__Union,
    pub Anonymous2: _Anonymous2_e__Union,
    pub Anonymous3: _Anonymous3_e__Union,
    pub Anonymous4: _Anonymous4_e__Union,
    pub Anonymous5: _Anonymous5_e__Union,
}

#[repr(C)]
pub struct DD_CREATEMOCOMPDATA {
    pub lpDD: *mut core::ffi::c_void,
    pub lpMoComp: *mut core::ffi::c_void,
    pub lpGuid: *mut core::ffi::c_void,
    pub dwUncompWidth: u32,
    pub dwUncompHeight: u32,
    pub ddUncompPixelFormat: DDPIXELFORMAT,
    pub lpData: *mut core::ffi::c_void,
    pub dwDataSize: u32,
    pub ddRVal: i32,
}

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

type DDPIXELFORMAT struct {
	dwSize uint32
	dwFlags uint32
	dwFourCC uint32
	Anonymous1 _Anonymous1_e__Union
	Anonymous2 _Anonymous2_e__Union
	Anonymous3 _Anonymous3_e__Union
	Anonymous4 _Anonymous4_e__Union
	Anonymous5 _Anonymous5_e__Union
}

type DD_CREATEMOCOMPDATA struct {
	lpDD uintptr
	lpMoComp uintptr
	lpGuid uintptr
	dwUncompWidth uint32
	dwUncompHeight uint32
	ddUncompPixelFormat DDPIXELFORMAT
	lpData uintptr
	dwDataSize uint32
	ddRVal int32
}

type
  DDPIXELFORMAT = record
    dwSize: DWORD;
    dwFlags: DWORD;
    dwFourCC: DWORD;
    Anonymous1: _Anonymous1_e__Union;
    Anonymous2: _Anonymous2_e__Union;
    Anonymous3: _Anonymous3_e__Union;
    Anonymous4: _Anonymous4_e__Union;
    Anonymous5: _Anonymous5_e__Union;
  end;

  DD_CREATEMOCOMPDATA = record
    lpDD: Pointer;
    lpMoComp: Pointer;
    lpGuid: Pointer;
    dwUncompWidth: DWORD;
    dwUncompHeight: DWORD;
    ddUncompPixelFormat: DDPIXELFORMAT;
    lpData: Pointer;
    dwDataSize: DWORD;
    ddRVal: Integer;
  end;

const DDPIXELFORMAT = extern struct {
    dwSize: u32,
    dwFlags: u32,
    dwFourCC: u32,
    Anonymous1: _Anonymous1_e__Union,
    Anonymous2: _Anonymous2_e__Union,
    Anonymous3: _Anonymous3_e__Union,
    Anonymous4: _Anonymous4_e__Union,
    Anonymous5: _Anonymous5_e__Union,
};

const DD_CREATEMOCOMPDATA = extern struct {
    lpDD: ?*anyopaque,
    lpMoComp: ?*anyopaque,
    lpGuid: ?*anyopaque,
    dwUncompWidth: u32,
    dwUncompHeight: u32,
    ddUncompPixelFormat: DDPIXELFORMAT,
    lpData: ?*anyopaque,
    dwDataSize: u32,
    ddRVal: i32,
};

type
  DDPIXELFORMAT {.bycopy.} = object
    dwSize: uint32
    dwFlags: uint32
    dwFourCC: uint32
    Anonymous1: _Anonymous1_e__Union
    Anonymous2: _Anonymous2_e__Union
    Anonymous3: _Anonymous3_e__Union
    Anonymous4: _Anonymous4_e__Union
    Anonymous5: _Anonymous5_e__Union

  DD_CREATEMOCOMPDATA {.bycopy.} = object
    lpDD: pointer
    lpMoComp: pointer
    lpGuid: pointer
    dwUncompWidth: uint32
    dwUncompHeight: uint32
    ddUncompPixelFormat: DDPIXELFORMAT
    lpData: pointer
    dwDataSize: uint32
    ddRVal: int32

struct DDPIXELFORMAT
{
    uint dwSize;
    uint dwFlags;
    uint dwFourCC;
    _Anonymous1_e__Union Anonymous1;
    _Anonymous2_e__Union Anonymous2;
    _Anonymous3_e__Union Anonymous3;
    _Anonymous4_e__Union Anonymous4;
    _Anonymous5_e__Union Anonymous5;
}

struct DD_CREATEMOCOMPDATA
{
    void* lpDD;
    void* lpMoComp;
    void* lpGuid;
    uint dwUncompWidth;
    uint dwUncompHeight;
    DDPIXELFORMAT ddUncompPixelFormat;
    void* lpData;
    uint dwDataSize;
    int ddRVal;
}