RtlIpv6StringToAddressExW

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

INT RtlIpv6StringToAddressExW(
    LPCWSTR AddressString,
    IN6_ADDR* Address,
    DWORD* ScopeId,
    WORD* Port
);

<DllImport("ntdll.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function RtlIpv6StringToAddressExW(
    <MarshalAs(UnmanagedType.LPWStr)> AddressString As String,   ' LPCWSTR
    Address As IntPtr,   ' IN6_ADDR* out
    <Out> ByRef ScopeId As UInteger,   ' DWORD* out
    <Out> ByRef Port As UShort   ' WORD* out
) As Integer
End Function

' AddressString : LPCWSTR
' Address : IN6_ADDR* out
' ScopeId : DWORD* out
' Port : WORD* out
Declare PtrSafe Function RtlIpv6StringToAddressExW Lib "ntdll" ( _
    ByVal AddressString As LongPtr, _
    ByVal Address As LongPtr, _
    ByRef ScopeId As Long, _
    ByRef Port As Integer) 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

RtlIpv6StringToAddressExW = ctypes.windll.ntdll.RtlIpv6StringToAddressExW
RtlIpv6StringToAddressExW.restype = ctypes.c_int
RtlIpv6StringToAddressExW.argtypes = [
    wintypes.LPCWSTR,  # AddressString : LPCWSTR
    ctypes.c_void_p,  # Address : IN6_ADDR* out
    ctypes.POINTER(wintypes.DWORD),  # ScopeId : DWORD* out
    ctypes.POINTER(ctypes.c_ushort),  # Port : WORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ntdll.dll')
RtlIpv6StringToAddressExW = Fiddle::Function.new(
  lib['RtlIpv6StringToAddressExW'],
  [
    Fiddle::TYPE_VOIDP,  # AddressString : LPCWSTR
    Fiddle::TYPE_VOIDP,  # Address : IN6_ADDR* out
    Fiddle::TYPE_VOIDP,  # ScopeId : DWORD* out
    Fiddle::TYPE_VOIDP,  # Port : WORD* out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "ntdll")]
extern "system" {
    fn RtlIpv6StringToAddressExW(
        AddressString: *const u16,  // LPCWSTR
        Address: *mut IN6_ADDR,  // IN6_ADDR* out
        ScopeId: *mut u32,  // DWORD* out
        Port: *mut u16  // WORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ntdll.dll", CharSet = CharSet.Unicode)]
public static extern int RtlIpv6StringToAddressExW([MarshalAs(UnmanagedType.LPWStr)] string AddressString, IntPtr Address, out uint ScopeId, out ushort Port);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ntdll_RtlIpv6StringToAddressExW' -Namespace Win32 -PassThru
# $api::RtlIpv6StringToAddressExW(AddressString, Address, ScopeId, Port)

#uselib "ntdll.dll"
#func global RtlIpv6StringToAddressExW "RtlIpv6StringToAddressExW" wptr, wptr, wptr, wptr
; RtlIpv6StringToAddressExW AddressString, varptr(Address), varptr(ScopeId), varptr(Port)   ; 戻り値は stat
; AddressString : LPCWSTR -> "wptr"
; Address : IN6_ADDR* out -> "wptr"
; ScopeId : DWORD* out -> "wptr"
; Port : WORD* 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 "ntdll.dll"
#cfunc global RtlIpv6StringToAddressExW "RtlIpv6StringToAddressExW" wstr, var, var, var
; res = RtlIpv6StringToAddressExW(AddressString, Address, ScopeId, Port)
; AddressString : LPCWSTR -> "wstr"
; Address : IN6_ADDR* out -> "var"
; ScopeId : DWORD* out -> "var"
; Port : WORD* out -> "var"
; ※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 RtlIpv6StringToAddressExW(LPCWSTR AddressString, IN6_ADDR* Address, DWORD* ScopeId, WORD* Port)
#uselib "ntdll.dll"
#cfunc global RtlIpv6StringToAddressExW "RtlIpv6StringToAddressExW" wstr, var, var, var
; res = RtlIpv6StringToAddressExW(AddressString, Address, ScopeId, Port)
; AddressString : LPCWSTR -> "wstr"
; Address : IN6_ADDR* out -> "var"
; ScopeId : DWORD* out -> "var"
; Port : WORD* out -> "var"
; ※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 (
	ntdll = windows.NewLazySystemDLL("ntdll.dll")
	procRtlIpv6StringToAddressExW = ntdll.NewProc("RtlIpv6StringToAddressExW")
)

// AddressString (LPCWSTR), Address (IN6_ADDR* out), ScopeId (DWORD* out), Port (WORD* out)
r1, _, err := procRtlIpv6StringToAddressExW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(AddressString))),
	uintptr(Address),
	uintptr(ScopeId),
	uintptr(Port),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function RtlIpv6StringToAddressExW(
  AddressString: PWideChar;   // LPCWSTR
  Address: Pointer;   // IN6_ADDR* out
  ScopeId: Pointer;   // DWORD* out
  Port: Pointer   // WORD* out
): Integer; stdcall;
  external 'ntdll.dll' name 'RtlIpv6StringToAddressExW';

result := DllCall("ntdll\RtlIpv6StringToAddressExW"
    , "WStr", AddressString   ; LPCWSTR
    , "Ptr", Address   ; IN6_ADDR* out
    , "Ptr", ScopeId   ; DWORD* out
    , "Ptr", Port   ; WORD* out
    , "Int")   ; return: INT

●RtlIpv6StringToAddressExW(AddressString, Address, ScopeId, Port) = DLL("ntdll.dll", "int RtlIpv6StringToAddressExW(char*, void*, void*, void*)")
# 呼び出し: RtlIpv6StringToAddressExW(AddressString, Address, ScopeId, Port)
# AddressString : LPCWSTR -> "char*"
# Address : IN6_ADDR* out -> "void*"
# ScopeId : DWORD* out -> "void*"
# Port : WORD* 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。