DhcpV6GetStatelessStatistics

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

DWORD DhcpV6GetStatelessStatistics(
    LPWSTR ServerIpAddress,   // optional
    DHCPV6_STATELESS_STATS** StatelessStats
);

<DllImport("DHCPSAPI.dll", ExactSpelling:=True)>
Public Shared Function DhcpV6GetStatelessStatistics(
    <MarshalAs(UnmanagedType.LPWStr)> ServerIpAddress As String,   ' LPWSTR optional
    StatelessStats As IntPtr   ' DHCPV6_STATELESS_STATS** out
) As UInteger
End Function

' ServerIpAddress : LPWSTR optional
' StatelessStats : DHCPV6_STATELESS_STATS** out
Declare PtrSafe Function DhcpV6GetStatelessStatistics Lib "dhcpsapi" ( _
    ByVal ServerIpAddress As LongPtr, _
    ByVal StatelessStats 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

DhcpV6GetStatelessStatistics = ctypes.windll.dhcpsapi.DhcpV6GetStatelessStatistics
DhcpV6GetStatelessStatistics.restype = wintypes.DWORD
DhcpV6GetStatelessStatistics.argtypes = [
    wintypes.LPCWSTR,  # ServerIpAddress : LPWSTR optional
    ctypes.c_void_p,  # StatelessStats : DHCPV6_STATELESS_STATS** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('DHCPSAPI.dll')
DhcpV6GetStatelessStatistics = Fiddle::Function.new(
  lib['DhcpV6GetStatelessStatistics'],
  [
    Fiddle::TYPE_VOIDP,  # ServerIpAddress : LPWSTR optional
    Fiddle::TYPE_VOIDP,  # StatelessStats : DHCPV6_STATELESS_STATS** out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "dhcpsapi")]
extern "system" {
    fn DhcpV6GetStatelessStatistics(
        ServerIpAddress: *mut u16,  // LPWSTR optional
        StatelessStats: *mut *mut DHCPV6_STATELESS_STATS  // DHCPV6_STATELESS_STATS** out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("DHCPSAPI.dll")]
public static extern uint DhcpV6GetStatelessStatistics([MarshalAs(UnmanagedType.LPWStr)] string ServerIpAddress, IntPtr StatelessStats);
"@
$api = Add-Type -MemberDefinition $sig -Name 'DHCPSAPI_DhcpV6GetStatelessStatistics' -Namespace Win32 -PassThru
# $api::DhcpV6GetStatelessStatistics(ServerIpAddress, StatelessStats)

#uselib "DHCPSAPI.dll"
#func global DhcpV6GetStatelessStatistics "DhcpV6GetStatelessStatistics" sptr, sptr
; DhcpV6GetStatelessStatistics ServerIpAddress, varptr(StatelessStats)   ; 戻り値は stat
; ServerIpAddress : LPWSTR optional -> "sptr"
; StatelessStats : DHCPV6_STATELESS_STATS** out -> "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")
	procDhcpV6GetStatelessStatistics = dhcpsapi.NewProc("DhcpV6GetStatelessStatistics")
)

// ServerIpAddress (LPWSTR optional), StatelessStats (DHCPV6_STATELESS_STATS** out)
r1, _, err := procDhcpV6GetStatelessStatistics.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(ServerIpAddress))),
	uintptr(StatelessStats),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function DhcpV6GetStatelessStatistics(
  ServerIpAddress: PWideChar;   // LPWSTR optional
  StatelessStats: Pointer   // DHCPV6_STATELESS_STATS** out
): DWORD; stdcall;
  external 'DHCPSAPI.dll' name 'DhcpV6GetStatelessStatistics';

result := DllCall("DHCPSAPI\DhcpV6GetStatelessStatistics"
    , "WStr", ServerIpAddress   ; LPWSTR optional
    , "Ptr", StatelessStats   ; DHCPV6_STATELESS_STATS** out
    , "UInt")   ; return: DWORD

●DhcpV6GetStatelessStatistics(ServerIpAddress, StatelessStats) = DLL("DHCPSAPI.dll", "dword DhcpV6GetStatelessStatistics(char*, void*)")
# 呼び出し: DhcpV6GetStatelessStatistics(ServerIpAddress, StatelessStats)
# ServerIpAddress : LPWSTR optional -> "char*"
# StatelessStats : DHCPV6_STATELESS_STATS** 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)。

const std = @import("std");

extern "dhcpsapi" fn DhcpV6GetStatelessStatistics(
    ServerIpAddress: [*c]const u16, // LPWSTR optional
    StatelessStats: [*c][*c]DHCPV6_STATELESS_STATS // DHCPV6_STATELESS_STATS** out
) callconv(std.os.windows.WINAPI) u32;

proc DhcpV6GetStatelessStatistics(
    ServerIpAddress: WideCString,  # LPWSTR optional
    StatelessStats: ptr DHCPV6_STATELESS_STATS  # DHCPV6_STATELESS_STATS** out
): uint32 {.importc: "DhcpV6GetStatelessStatistics", stdcall, dynlib: "DHCPSAPI.dll".}

pragma(lib, "dhcpsapi");
extern(Windows)
uint DhcpV6GetStatelessStatistics(
    const(wchar)* ServerIpAddress,   // LPWSTR optional
    DHCPV6_STATELESS_STATS** StatelessStats   // DHCPV6_STATELESS_STATS** out
);

ccall((:DhcpV6GetStatelessStatistics, "DHCPSAPI.dll"), stdcall, UInt32,
      (Cwstring, Ptr{DHCPV6_STATELESS_STATS}),
      ServerIpAddress, StatelessStats)
# ServerIpAddress : LPWSTR optional -> Cwstring
# StatelessStats : DHCPV6_STATELESS_STATS** out -> Ptr{DHCPV6_STATELESS_STATS}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t DhcpV6GetStatelessStatistics(
    const uint16_t* ServerIpAddress,
    void* StatelessStats);
]]
local dhcpsapi = ffi.load("dhcpsapi")
-- dhcpsapi.DhcpV6GetStatelessStatistics(ServerIpAddress, StatelessStats)
-- ServerIpAddress : LPWSTR optional
-- StatelessStats : DHCPV6_STATELESS_STATS** out
-- 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 DhcpV6GetStatelessStatistics = lib.func('__stdcall', 'DhcpV6GetStatelessStatistics', 'uint32_t', ['str16', 'void *']);
// DhcpV6GetStatelessStatistics(ServerIpAddress, StatelessStats)
// ServerIpAddress : LPWSTR optional -> 'str16'
// StatelessStats : DHCPV6_STATELESS_STATS** out -> '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", {
  DhcpV6GetStatelessStatistics: { parameters: ["buffer", "pointer"], result: "u32" },
});
// lib.symbols.DhcpV6GetStatelessStatistics(ServerIpAddress, StatelessStats)
// ServerIpAddress : LPWSTR optional -> "buffer"
// StatelessStats : DHCPV6_STATELESS_STATS** out -> "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 DhcpV6GetStatelessStatistics(
    const uint16_t* ServerIpAddress,
    void* StatelessStats);
C, "DHCPSAPI.dll");
// $ffi->DhcpV6GetStatelessStatistics(ServerIpAddress, StatelessStats);
// ServerIpAddress : LPWSTR optional
// StatelessStats : DHCPV6_STATELESS_STATS** out
// 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 DhcpV6GetStatelessStatistics(
        WString ServerIpAddress,   // LPWSTR optional
        Pointer StatelessStats   // DHCPV6_STATELESS_STATS** out
    );
}

@[Link("dhcpsapi")]
lib LibDHCPSAPI
  fun DhcpV6GetStatelessStatistics = DhcpV6GetStatelessStatistics(
    ServerIpAddress : UInt16*,   # LPWSTR optional
    StatelessStats : DHCPV6_STATELESS_STATS**   # DHCPV6_STATELESS_STATS** out
  ) : 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 DhcpV6GetStatelessStatisticsNative = Uint32 Function(Pointer<Utf16>, Pointer<Void>);
typedef DhcpV6GetStatelessStatisticsDart = int Function(Pointer<Utf16>, Pointer<Void>);
final DhcpV6GetStatelessStatistics = DynamicLibrary.open('DHCPSAPI.dll')
    .lookupFunction<DhcpV6GetStatelessStatisticsNative, DhcpV6GetStatelessStatisticsDart>('DhcpV6GetStatelessStatistics');
// ServerIpAddress : LPWSTR optional -> Pointer<Utf16>
// StatelessStats : DHCPV6_STATELESS_STATS** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function DhcpV6GetStatelessStatistics(
  ServerIpAddress: PWideChar;   // LPWSTR optional
  StatelessStats: Pointer   // DHCPV6_STATELESS_STATS** out
): DWORD; stdcall;
  external 'DHCPSAPI.dll' name 'DhcpV6GetStatelessStatistics';

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

foreign import stdcall safe "DhcpV6GetStatelessStatistics"
  c_DhcpV6GetStatelessStatistics :: CWString -> Ptr () -> IO Word32
-- ServerIpAddress : LPWSTR optional -> CWString
-- StatelessStats : DHCPV6_STATELESS_STATS** out -> 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 dhcpv6getstatelessstatistics =
  foreign "DhcpV6GetStatelessStatistics"
    ((ptr uint16_t) @-> (ptr void) @-> returning uint32_t)
(* ServerIpAddress : LPWSTR optional -> (ptr uint16_t) *)
(* StatelessStats : DHCPV6_STATELESS_STATS** out -> (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 ("DhcpV6GetStatelessStatistics" dhcp-v6-get-stateless-statistics :convention :stdcall) :uint32
  (server-ip-address (:string :encoding :utf-16le))   ; LPWSTR optional
  (stateless-stats :pointer))   ; DHCPV6_STATELESS_STATS** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $DhcpV6GetStatelessStatistics = Win32::API::More->new('DHCPSAPI',
    'DWORD DhcpV6GetStatelessStatistics(LPCWSTR ServerIpAddress, LPVOID StatelessStats)');
# my $ret = $DhcpV6GetStatelessStatistics->Call($ServerIpAddress, $StatelessStats);
# ServerIpAddress : LPWSTR optional -> LPCWSTR
# StatelessStats : DHCPV6_STATELESS_STATS** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。