WSANAMESPACE_INFOEXA

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct BLOB
{
    public uint cbSize;
    public IntPtr pBlobData;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct WSANAMESPACE_INFOEXA
{
    public Guid NSProviderId;
    public uint dwNameSpace;
    [MarshalAs(UnmanagedType.Bool)] public bool fActive;
    public uint dwVersion;
    public IntPtr lpszIdentifier;
    public BLOB ProviderSpecific;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure BLOB
    Public cbSize As UInteger
    Public pBlobData As IntPtr
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure WSANAMESPACE_INFOEXA
    Public NSProviderId As Guid
    Public dwNameSpace As UInteger
    <MarshalAs(UnmanagedType.Bool)> Public fActive As Boolean
    Public dwVersion As UInteger
    Public lpszIdentifier As IntPtr
    Public ProviderSpecific As BLOB
End Structure

import ctypes
from ctypes import wintypes

class BLOB(ctypes.Structure):
    _fields_ = [
        ("cbSize", wintypes.DWORD),
        ("pBlobData", ctypes.c_void_p),
    ]

class WSANAMESPACE_INFOEXA(ctypes.Structure):
    _fields_ = [
        ("NSProviderId", GUID),
        ("dwNameSpace", wintypes.DWORD),
        ("fActive", wintypes.BOOL),
        ("dwVersion", wintypes.DWORD),
        ("lpszIdentifier", ctypes.c_void_p),
        ("ProviderSpecific", BLOB),
    ]

#[repr(C)]
pub struct BLOB {
    pub cbSize: u32,
    pub pBlobData: *mut core::ffi::c_void,
}

#[repr(C)]
pub struct WSANAMESPACE_INFOEXA {
    pub NSProviderId: GUID,
    pub dwNameSpace: u32,
    pub fActive: i32,
    pub dwVersion: u32,
    pub lpszIdentifier: *mut core::ffi::c_void,
    pub ProviderSpecific: BLOB,
}

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

type BLOB struct {
	cbSize uint32
	pBlobData uintptr
}

type WSANAMESPACE_INFOEXA struct {
	NSProviderId windows.GUID
	dwNameSpace uint32
	fActive int32
	dwVersion uint32
	lpszIdentifier uintptr
	ProviderSpecific BLOB
}

type
  BLOB = record
    cbSize: DWORD;
    pBlobData: Pointer;
  end;

  WSANAMESPACE_INFOEXA = record
    NSProviderId: TGUID;
    dwNameSpace: DWORD;
    fActive: BOOL;
    dwVersion: DWORD;
    lpszIdentifier: Pointer;
    ProviderSpecific: BLOB;
  end;

const BLOB = extern struct {
    cbSize: u32,
    pBlobData: ?*anyopaque,
};

const WSANAMESPACE_INFOEXA = extern struct {
    NSProviderId: GUID,
    dwNameSpace: u32,
    fActive: i32,
    dwVersion: u32,
    lpszIdentifier: ?*anyopaque,
    ProviderSpecific: BLOB,
};

type
  BLOB {.bycopy.} = object
    cbSize: uint32
    pBlobData: pointer

  WSANAMESPACE_INFOEXA {.bycopy.} = object
    NSProviderId: GUID
    dwNameSpace: uint32
    fActive: int32
    dwVersion: uint32
    lpszIdentifier: pointer
    ProviderSpecific: BLOB

struct BLOB
{
    uint cbSize;
    void* pBlobData;
}

struct WSANAMESPACE_INFOEXA
{
    GUID NSProviderId;
    uint dwNameSpace;
    int fActive;
    uint dwVersion;
    void* lpszIdentifier;
    BLOB ProviderSpecific;
}