SetAddrInfoExW

// WS2_32.dll  (Unicode / -W)
#include <windows.h>

INT SetAddrInfoExW(
    LPCWSTR pName,
    LPCWSTR pServiceName,   // optional
    SOCKET_ADDRESS* pAddresses,   // optional
    DWORD dwAddressCount,
    BLOB* lpBlob,   // optional
    DWORD dwFlags,
    DWORD dwNameSpace,
    GUID* lpNspId,   // optional
    TIMEVAL* timeout,   // optional
    OVERLAPPED* lpOverlapped,   // optional
    LPLOOKUPSERVICE_COMPLETION_ROUTINE lpCompletionRoutine,   // optional
    HANDLE* lpNameHandle   // optional
);

<DllImport("WS2_32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function SetAddrInfoExW(
    <MarshalAs(UnmanagedType.LPWStr)> pName As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> pServiceName As String,   ' LPCWSTR optional
    pAddresses As IntPtr,   ' SOCKET_ADDRESS* optional
    dwAddressCount As UInteger,   ' DWORD
    lpBlob As IntPtr,   ' BLOB* optional
    dwFlags As UInteger,   ' DWORD
    dwNameSpace As UInteger,   ' DWORD
    lpNspId As IntPtr,   ' GUID* optional
    timeout As IntPtr,   ' TIMEVAL* optional
    lpOverlapped As IntPtr,   ' OVERLAPPED* optional
    lpCompletionRoutine As IntPtr,   ' LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
    lpNameHandle As IntPtr   ' HANDLE* optional, out
) As Integer
End Function

' pName : LPCWSTR
' pServiceName : LPCWSTR optional
' pAddresses : SOCKET_ADDRESS* optional
' dwAddressCount : DWORD
' lpBlob : BLOB* optional
' dwFlags : DWORD
' dwNameSpace : DWORD
' lpNspId : GUID* optional
' timeout : TIMEVAL* optional
' lpOverlapped : OVERLAPPED* optional
' lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
' lpNameHandle : HANDLE* optional, out
Declare PtrSafe Function SetAddrInfoExW Lib "ws2_32" ( _
    ByVal pName As LongPtr, _
    ByVal pServiceName As LongPtr, _
    ByVal pAddresses As LongPtr, _
    ByVal dwAddressCount As Long, _
    ByVal lpBlob As LongPtr, _
    ByVal dwFlags As Long, _
    ByVal dwNameSpace As Long, _
    ByVal lpNspId As LongPtr, _
    ByVal timeout As LongPtr, _
    ByVal lpOverlapped As LongPtr, _
    ByVal lpCompletionRoutine As LongPtr, _
    ByVal lpNameHandle As LongPtr) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SetAddrInfoExW = ctypes.windll.ws2_32.SetAddrInfoExW
SetAddrInfoExW.restype = ctypes.c_int
SetAddrInfoExW.argtypes = [
    wintypes.LPCWSTR,  # pName : LPCWSTR
    wintypes.LPCWSTR,  # pServiceName : LPCWSTR optional
    ctypes.c_void_p,  # pAddresses : SOCKET_ADDRESS* optional
    wintypes.DWORD,  # dwAddressCount : DWORD
    ctypes.c_void_p,  # lpBlob : BLOB* optional
    wintypes.DWORD,  # dwFlags : DWORD
    wintypes.DWORD,  # dwNameSpace : DWORD
    ctypes.c_void_p,  # lpNspId : GUID* optional
    ctypes.c_void_p,  # timeout : TIMEVAL* optional
    ctypes.c_void_p,  # lpOverlapped : OVERLAPPED* optional
    ctypes.c_void_p,  # lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
    ctypes.c_void_p,  # lpNameHandle : HANDLE* optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WS2_32.dll')
SetAddrInfoExW = Fiddle::Function.new(
  lib['SetAddrInfoExW'],
  [
    Fiddle::TYPE_VOIDP,  # pName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pServiceName : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # pAddresses : SOCKET_ADDRESS* optional
    -Fiddle::TYPE_INT,  # dwAddressCount : DWORD
    Fiddle::TYPE_VOIDP,  # lpBlob : BLOB* optional
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    -Fiddle::TYPE_INT,  # dwNameSpace : DWORD
    Fiddle::TYPE_VOIDP,  # lpNspId : GUID* optional
    Fiddle::TYPE_VOIDP,  # timeout : TIMEVAL* optional
    Fiddle::TYPE_VOIDP,  # lpOverlapped : OVERLAPPED* optional
    Fiddle::TYPE_VOIDP,  # lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
    Fiddle::TYPE_VOIDP,  # lpNameHandle : HANDLE* optional, out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "ws2_32")]
extern "system" {
    fn SetAddrInfoExW(
        pName: *const u16,  // LPCWSTR
        pServiceName: *const u16,  // LPCWSTR optional
        pAddresses: *mut SOCKET_ADDRESS,  // SOCKET_ADDRESS* optional
        dwAddressCount: u32,  // DWORD
        lpBlob: *mut BLOB,  // BLOB* optional
        dwFlags: u32,  // DWORD
        dwNameSpace: u32,  // DWORD
        lpNspId: *mut GUID,  // GUID* optional
        timeout: *mut TIMEVAL,  // TIMEVAL* optional
        lpOverlapped: *mut OVERLAPPED,  // OVERLAPPED* optional
        lpCompletionRoutine: *const core::ffi::c_void,  // LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
        lpNameHandle: *mut *mut core::ffi::c_void  // HANDLE* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WS2_32.dll", CharSet = CharSet.Unicode)]
public static extern int SetAddrInfoExW([MarshalAs(UnmanagedType.LPWStr)] string pName, [MarshalAs(UnmanagedType.LPWStr)] string pServiceName, IntPtr pAddresses, uint dwAddressCount, IntPtr lpBlob, uint dwFlags, uint dwNameSpace, IntPtr lpNspId, IntPtr timeout, IntPtr lpOverlapped, IntPtr lpCompletionRoutine, IntPtr lpNameHandle);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WS2_32_SetAddrInfoExW' -Namespace Win32 -PassThru
# $api::SetAddrInfoExW(pName, pServiceName, pAddresses, dwAddressCount, lpBlob, dwFlags, dwNameSpace, lpNspId, timeout, lpOverlapped, lpCompletionRoutine, lpNameHandle)

#uselib "WS2_32.dll"
#func global SetAddrInfoExW "SetAddrInfoExW" wptr, wptr, wptr, wptr, wptr, wptr, wptr, wptr, wptr, wptr, wptr, wptr
; SetAddrInfoExW pName, pServiceName, varptr(pAddresses), dwAddressCount, varptr(lpBlob), dwFlags, dwNameSpace, varptr(lpNspId), varptr(timeout), varptr(lpOverlapped), lpCompletionRoutine, lpNameHandle   ; 戻り値は stat
; pName : LPCWSTR -> "wptr"
; pServiceName : LPCWSTR optional -> "wptr"
; pAddresses : SOCKET_ADDRESS* optional -> "wptr"
; dwAddressCount : DWORD -> "wptr"
; lpBlob : BLOB* optional -> "wptr"
; dwFlags : DWORD -> "wptr"
; dwNameSpace : DWORD -> "wptr"
; lpNspId : GUID* optional -> "wptr"
; timeout : TIMEVAL* optional -> "wptr"
; lpOverlapped : OVERLAPPED* optional -> "wptr"
; lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional -> "wptr"
; lpNameHandle : HANDLE* optional, out -> "wptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

#uselib "WS2_32.dll"
#cfunc global SetAddrInfoExW "SetAddrInfoExW" wstr, wstr, var, int, var, int, int, var, var, var, sptr, sptr
; res = SetAddrInfoExW(pName, pServiceName, pAddresses, dwAddressCount, lpBlob, dwFlags, dwNameSpace, lpNspId, timeout, lpOverlapped, lpCompletionRoutine, lpNameHandle)
; pName : LPCWSTR -> "wstr"
; pServiceName : LPCWSTR optional -> "wstr"
; pAddresses : SOCKET_ADDRESS* optional -> "var"
; dwAddressCount : DWORD -> "int"
; lpBlob : BLOB* optional -> "var"
; dwFlags : DWORD -> "int"
; dwNameSpace : DWORD -> "int"
; lpNspId : GUID* optional -> "var"
; timeout : TIMEVAL* optional -> "var"
; lpOverlapped : OVERLAPPED* optional -> "var"
; lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional -> "sptr"
; lpNameHandle : HANDLE* optional, out -> "sptr"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; INT SetAddrInfoExW(LPCWSTR pName, LPCWSTR pServiceName, SOCKET_ADDRESS* pAddresses, DWORD dwAddressCount, BLOB* lpBlob, DWORD dwFlags, DWORD dwNameSpace, GUID* lpNspId, TIMEVAL* timeout, OVERLAPPED* lpOverlapped, LPLOOKUPSERVICE_COMPLETION_ROUTINE lpCompletionRoutine, HANDLE* lpNameHandle)
#uselib "WS2_32.dll"
#cfunc global SetAddrInfoExW "SetAddrInfoExW" wstr, wstr, var, int, var, int, int, var, var, var, intptr, intptr
; res = SetAddrInfoExW(pName, pServiceName, pAddresses, dwAddressCount, lpBlob, dwFlags, dwNameSpace, lpNspId, timeout, lpOverlapped, lpCompletionRoutine, lpNameHandle)
; pName : LPCWSTR -> "wstr"
; pServiceName : LPCWSTR optional -> "wstr"
; pAddresses : SOCKET_ADDRESS* optional -> "var"
; dwAddressCount : DWORD -> "int"
; lpBlob : BLOB* optional -> "var"
; dwFlags : DWORD -> "int"
; dwNameSpace : DWORD -> "int"
; lpNspId : GUID* optional -> "var"
; timeout : TIMEVAL* optional -> "var"
; lpOverlapped : OVERLAPPED* optional -> "var"
; lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional -> "intptr"
; lpNameHandle : HANDLE* optional, out -> "intptr"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	ws2_32 = windows.NewLazySystemDLL("WS2_32.dll")
	procSetAddrInfoExW = ws2_32.NewProc("SetAddrInfoExW")
)

// pName (LPCWSTR), pServiceName (LPCWSTR optional), pAddresses (SOCKET_ADDRESS* optional), dwAddressCount (DWORD), lpBlob (BLOB* optional), dwFlags (DWORD), dwNameSpace (DWORD), lpNspId (GUID* optional), timeout (TIMEVAL* optional), lpOverlapped (OVERLAPPED* optional), lpCompletionRoutine (LPLOOKUPSERVICE_COMPLETION_ROUTINE optional), lpNameHandle (HANDLE* optional, out)
r1, _, err := procSetAddrInfoExW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pServiceName))),
	uintptr(pAddresses),
	uintptr(dwAddressCount),
	uintptr(lpBlob),
	uintptr(dwFlags),
	uintptr(dwNameSpace),
	uintptr(lpNspId),
	uintptr(timeout),
	uintptr(lpOverlapped),
	uintptr(lpCompletionRoutine),
	uintptr(lpNameHandle),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function SetAddrInfoExW(
  pName: PWideChar;   // LPCWSTR
  pServiceName: PWideChar;   // LPCWSTR optional
  pAddresses: Pointer;   // SOCKET_ADDRESS* optional
  dwAddressCount: DWORD;   // DWORD
  lpBlob: Pointer;   // BLOB* optional
  dwFlags: DWORD;   // DWORD
  dwNameSpace: DWORD;   // DWORD
  lpNspId: PGUID;   // GUID* optional
  timeout: Pointer;   // TIMEVAL* optional
  lpOverlapped: Pointer;   // OVERLAPPED* optional
  lpCompletionRoutine: Pointer;   // LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
  lpNameHandle: Pointer   // HANDLE* optional, out
): Integer; stdcall;
  external 'WS2_32.dll' name 'SetAddrInfoExW';

result := DllCall("WS2_32\SetAddrInfoExW"
    , "WStr", pName   ; LPCWSTR
    , "WStr", pServiceName   ; LPCWSTR optional
    , "Ptr", pAddresses   ; SOCKET_ADDRESS* optional
    , "UInt", dwAddressCount   ; DWORD
    , "Ptr", lpBlob   ; BLOB* optional
    , "UInt", dwFlags   ; DWORD
    , "UInt", dwNameSpace   ; DWORD
    , "Ptr", lpNspId   ; GUID* optional
    , "Ptr", timeout   ; TIMEVAL* optional
    , "Ptr", lpOverlapped   ; OVERLAPPED* optional
    , "Ptr", lpCompletionRoutine   ; LPLOOKUPSERVICE_COMPLETION_ROUTINE optional
    , "Ptr", lpNameHandle   ; HANDLE* optional, out
    , "Int")   ; return: INT

●SetAddrInfoExW(pName, pServiceName, pAddresses, dwAddressCount, lpBlob, dwFlags, dwNameSpace, lpNspId, timeout, lpOverlapped, lpCompletionRoutine, lpNameHandle) = DLL("WS2_32.dll", "int SetAddrInfoExW(char*, char*, void*, dword, void*, dword, dword, void*, void*, void*, void*, void*)")
# 呼び出し: SetAddrInfoExW(pName, pServiceName, pAddresses, dwAddressCount, lpBlob, dwFlags, dwNameSpace, lpNspId, timeout, lpOverlapped, lpCompletionRoutine, lpNameHandle)
# pName : LPCWSTR -> "char*"
# pServiceName : LPCWSTR optional -> "char*"
# pAddresses : SOCKET_ADDRESS* optional -> "void*"
# dwAddressCount : DWORD -> "dword"
# lpBlob : BLOB* optional -> "void*"
# dwFlags : DWORD -> "dword"
# dwNameSpace : DWORD -> "dword"
# lpNspId : GUID* optional -> "void*"
# timeout : TIMEVAL* optional -> "void*"
# lpOverlapped : OVERLAPPED* optional -> "void*"
# lpCompletionRoutine : LPLOOKUPSERVICE_COMPLETION_ROUTINE optional -> "void*"
# lpNameHandle : HANDLE* optional, out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。