DhcpSetClientInfoV6

// DHCPSAPI.dll
#include <windows.h>

DWORD DhcpSetClientInfoV6(
    LPCWSTR ServerIpAddress,   // optional
    const DHCP_CLIENT_INFO_V6* ClientInfo
);

<DllImport("DHCPSAPI.dll", ExactSpelling:=True)>
Public Shared Function DhcpSetClientInfoV6(
    <MarshalAs(UnmanagedType.LPWStr)> ServerIpAddress As String,   ' LPCWSTR optional
    ClientInfo As IntPtr   ' DHCP_CLIENT_INFO_V6*
) As UInteger
End Function

' ServerIpAddress : LPCWSTR optional
' ClientInfo : DHCP_CLIENT_INFO_V6*
Declare PtrSafe Function DhcpSetClientInfoV6 Lib "dhcpsapi" ( _
    ByVal ServerIpAddress As LongPtr, _
    ByVal ClientInfo As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

DhcpSetClientInfoV6 = ctypes.windll.dhcpsapi.DhcpSetClientInfoV6
DhcpSetClientInfoV6.restype = wintypes.DWORD
DhcpSetClientInfoV6.argtypes = [
    wintypes.LPCWSTR,  # ServerIpAddress : LPCWSTR optional
    ctypes.c_void_p,  # ClientInfo : DHCP_CLIENT_INFO_V6*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('DHCPSAPI.dll')
DhcpSetClientInfoV6 = Fiddle::Function.new(
  lib['DhcpSetClientInfoV6'],
  [
    Fiddle::TYPE_VOIDP,  # ServerIpAddress : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # ClientInfo : DHCP_CLIENT_INFO_V6*
  ],
  -Fiddle::TYPE_INT)

#[link(name = "dhcpsapi")]
extern "system" {
    fn DhcpSetClientInfoV6(
        ServerIpAddress: *const u16,  // LPCWSTR optional
        ClientInfo: *const DHCP_CLIENT_INFO_V6  // DHCP_CLIENT_INFO_V6*
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("DHCPSAPI.dll")]
public static extern uint DhcpSetClientInfoV6([MarshalAs(UnmanagedType.LPWStr)] string ServerIpAddress, IntPtr ClientInfo);
"@
$api = Add-Type -MemberDefinition $sig -Name 'DHCPSAPI_DhcpSetClientInfoV6' -Namespace Win32 -PassThru
# $api::DhcpSetClientInfoV6(ServerIpAddress, ClientInfo)

#uselib "DHCPSAPI.dll"
#func global DhcpSetClientInfoV6 "DhcpSetClientInfoV6" sptr, sptr
; DhcpSetClientInfoV6 ServerIpAddress, varptr(ClientInfo)   ; 戻り値は stat
; ServerIpAddress : LPCWSTR optional -> "sptr"
; ClientInfo : DHCP_CLIENT_INFO_V6* -> "sptr"
; ※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。

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

var (
	dhcpsapi = windows.NewLazySystemDLL("DHCPSAPI.dll")
	procDhcpSetClientInfoV6 = dhcpsapi.NewProc("DhcpSetClientInfoV6")
)

// ServerIpAddress (LPCWSTR optional), ClientInfo (DHCP_CLIENT_INFO_V6*)
r1, _, err := procDhcpSetClientInfoV6.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(ServerIpAddress))),
	uintptr(ClientInfo),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function DhcpSetClientInfoV6(
  ServerIpAddress: PWideChar;   // LPCWSTR optional
  ClientInfo: Pointer   // DHCP_CLIENT_INFO_V6*
): DWORD; stdcall;
  external 'DHCPSAPI.dll' name 'DhcpSetClientInfoV6';

result := DllCall("DHCPSAPI\DhcpSetClientInfoV6"
    , "WStr", ServerIpAddress   ; LPCWSTR optional
    , "Ptr", ClientInfo   ; DHCP_CLIENT_INFO_V6*
    , "UInt")   ; return: DWORD

●DhcpSetClientInfoV6(ServerIpAddress, ClientInfo) = DLL("DHCPSAPI.dll", "dword DhcpSetClientInfoV6(char*, void*)")
# 呼び出し: DhcpSetClientInfoV6(ServerIpAddress, ClientInfo)
# ServerIpAddress : LPCWSTR optional -> "char*"
# ClientInfo : DHCP_CLIENT_INFO_V6* -> "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)。

const std = @import("std");

extern "dhcpsapi" fn DhcpSetClientInfoV6(
    ServerIpAddress: [*c]const u16, // LPCWSTR optional
    ClientInfo: [*c]DHCP_CLIENT_INFO_V6 // DHCP_CLIENT_INFO_V6*
) callconv(std.os.windows.WINAPI) u32;

proc DhcpSetClientInfoV6(
    ServerIpAddress: WideCString,  # LPCWSTR optional
    ClientInfo: ptr DHCP_CLIENT_INFO_V6  # DHCP_CLIENT_INFO_V6*
): uint32 {.importc: "DhcpSetClientInfoV6", stdcall, dynlib: "DHCPSAPI.dll".}

pragma(lib, "dhcpsapi");
extern(Windows)
uint DhcpSetClientInfoV6(
    const(wchar)* ServerIpAddress,   // LPCWSTR optional
    DHCP_CLIENT_INFO_V6* ClientInfo   // DHCP_CLIENT_INFO_V6*
);

ccall((:DhcpSetClientInfoV6, "DHCPSAPI.dll"), stdcall, UInt32,
      (Cwstring, Ptr{DHCP_CLIENT_INFO_V6}),
      ServerIpAddress, ClientInfo)
# ServerIpAddress : LPCWSTR optional -> Cwstring
# ClientInfo : DHCP_CLIENT_INFO_V6* -> Ptr{DHCP_CLIENT_INFO_V6}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t DhcpSetClientInfoV6(
    const uint16_t* ServerIpAddress,
    void* ClientInfo);
]]
local dhcpsapi = ffi.load("dhcpsapi")
-- dhcpsapi.DhcpSetClientInfoV6(ServerIpAddress, ClientInfo)
-- ServerIpAddress : LPCWSTR optional
-- ClientInfo : DHCP_CLIENT_INFO_V6*
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('DHCPSAPI.dll');
const DhcpSetClientInfoV6 = lib.func('__stdcall', 'DhcpSetClientInfoV6', 'uint32_t', ['str16', 'void *']);
// DhcpSetClientInfoV6(ServerIpAddress, ClientInfo)
// ServerIpAddress : LPCWSTR optional -> 'str16'
// ClientInfo : DHCP_CLIENT_INFO_V6* -> 'void *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("DHCPSAPI.dll", {
  DhcpSetClientInfoV6: { parameters: ["buffer", "pointer"], result: "u32" },
});
// lib.symbols.DhcpSetClientInfoV6(ServerIpAddress, ClientInfo)
// ServerIpAddress : LPCWSTR optional -> "buffer"
// ClientInfo : DHCP_CLIENT_INFO_V6* -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
uint32_t DhcpSetClientInfoV6(
    const uint16_t* ServerIpAddress,
    void* ClientInfo);
C, "DHCPSAPI.dll");
// $ffi->DhcpSetClientInfoV6(ServerIpAddress, ClientInfo);
// ServerIpAddress : LPCWSTR optional
// ClientInfo : DHCP_CLIENT_INFO_V6*
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Dhcpsapi extends StdCallLibrary {
    Dhcpsapi INSTANCE = Native.load("dhcpsapi", Dhcpsapi.class);
    int DhcpSetClientInfoV6(
        WString ServerIpAddress,   // LPCWSTR optional
        Pointer ClientInfo   // DHCP_CLIENT_INFO_V6*
    );
}

@[Link("dhcpsapi")]
lib LibDHCPSAPI
  fun DhcpSetClientInfoV6 = DhcpSetClientInfoV6(
    ServerIpAddress : UInt16*,   # LPCWSTR optional
    ClientInfo : DHCP_CLIENT_INFO_V6*   # DHCP_CLIENT_INFO_V6*
  ) : UInt32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef DhcpSetClientInfoV6Native = Uint32 Function(Pointer<Utf16>, Pointer<Void>);
typedef DhcpSetClientInfoV6Dart = int Function(Pointer<Utf16>, Pointer<Void>);
final DhcpSetClientInfoV6 = DynamicLibrary.open('DHCPSAPI.dll')
    .lookupFunction<DhcpSetClientInfoV6Native, DhcpSetClientInfoV6Dart>('DhcpSetClientInfoV6');
// ServerIpAddress : LPCWSTR optional -> Pointer<Utf16>
// ClientInfo : DHCP_CLIENT_INFO_V6* -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function DhcpSetClientInfoV6(
  ServerIpAddress: PWideChar;   // LPCWSTR optional
  ClientInfo: Pointer   // DHCP_CLIENT_INFO_V6*
): DWORD; stdcall;
  external 'DHCPSAPI.dll' name 'DhcpSetClientInfoV6';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "DhcpSetClientInfoV6"
  c_DhcpSetClientInfoV6 :: CWString -> Ptr () -> IO Word32
-- ServerIpAddress : LPCWSTR optional -> CWString
-- ClientInfo : DHCP_CLIENT_INFO_V6* -> Ptr ()
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let dhcpsetclientinfov6 =
  foreign "DhcpSetClientInfoV6"
    ((ptr uint16_t) @-> (ptr void) @-> returning uint32_t)
(* ServerIpAddress : LPCWSTR optional -> (ptr uint16_t) *)
(* ClientInfo : DHCP_CLIENT_INFO_V6* -> (ptr void) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library dhcpsapi (t "DHCPSAPI.dll"))
(cffi:use-foreign-library dhcpsapi)

(cffi:defcfun ("DhcpSetClientInfoV6" dhcp-set-client-info-v6 :convention :stdcall) :uint32
  (server-ip-address (:string :encoding :utf-16le))   ; LPCWSTR optional
  (client-info :pointer))   ; DHCP_CLIENT_INFO_V6*
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $DhcpSetClientInfoV6 = Win32::API::More->new('DHCPSAPI',
    'DWORD DhcpSetClientInfoV6(LPCWSTR ServerIpAddress, LPVOID ClientInfo)');
# my $ret = $DhcpSetClientInfoV6->Call($ServerIpAddress, $ClientInfo);
# ServerIpAddress : LPCWSTR optional -> LPCWSTR
# ClientInfo : DHCP_CLIENT_INFO_V6* -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。