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Dhcpv6RequestParams

関数

DHCPv6サーバーから指定パラメータを要求し取得する。

DLLdhcpcsvc6.dll呼出規約winapi対応OSWindows Vista 以降

シグネチャ

// dhcpcsvc6.dll
#include <windows.h>

DWORD Dhcpv6RequestParams(
    BOOL forceNewInform,
    void* reserved,
    LPWSTR adapterName,
    DHCPV6CAPI_CLASSID* classId,
    DHCPV6CAPI_PARAMS_ARRAY recdParams,
    BYTE* buffer,
    DWORD* pSize
);

パラメーター

名前	型	方向	説明
forceNewInform	BOOL	in	新規のInformメッセージ送信を強制するか指定するBOOL。TRUEで強制再取得。
reserved	void*	inout	予約パラメータ。NULLを指定する。
adapterName	LPWSTR	in	対象ネットワークアダプタ名(Unicode)へのポインタ。
classId	DHCPV6CAPI_CLASSID*	inout	DHCPv6クラスIDを格納したDHCPV6CAPI_CLASSID構造体へのポインタ。NULL可。
recdParams	DHCPV6CAPI_PARAMS_ARRAY	in	要求するパラメータを記述したDHCPV6CAPI_PARAMS_ARRAY構造体。
buffer	BYTE*	inout	取得したパラメータ値を受け取るバイトバッファへのポインタ。
pSize	DWORD*	inout	bufferのサイズを渡し、必要サイズを受け取るDWORDへのポインタ。

戻り値の型: DWORD

各言語での呼び出し定義

// dhcpcsvc6.dll
#include <windows.h>

DWORD Dhcpv6RequestParams(
    BOOL forceNewInform,
    void* reserved,
    LPWSTR adapterName,
    DHCPV6CAPI_CLASSID* classId,
    DHCPV6CAPI_PARAMS_ARRAY recdParams,
    BYTE* buffer,
    DWORD* pSize
);

[DllImport("dhcpcsvc6.dll", ExactSpelling = true)]
static extern uint Dhcpv6RequestParams(
    bool forceNewInform,   // BOOL
    IntPtr reserved,   // void* in/out
    [MarshalAs(UnmanagedType.LPWStr)] string adapterName,   // LPWSTR
    IntPtr classId,   // DHCPV6CAPI_CLASSID* in/out
    DHCPV6CAPI_PARAMS_ARRAY recdParams,   // DHCPV6CAPI_PARAMS_ARRAY
    IntPtr buffer,   // BYTE* in/out
    ref uint pSize   // DWORD* in/out
);

<DllImport("dhcpcsvc6.dll", ExactSpelling:=True)>
Public Shared Function Dhcpv6RequestParams(
    forceNewInform As Boolean,   ' BOOL
    reserved As IntPtr,   ' void* in/out
    <MarshalAs(UnmanagedType.LPWStr)> adapterName As String,   ' LPWSTR
    classId As IntPtr,   ' DHCPV6CAPI_CLASSID* in/out
    recdParams As DHCPV6CAPI_PARAMS_ARRAY,   ' DHCPV6CAPI_PARAMS_ARRAY
    buffer As IntPtr,   ' BYTE* in/out
    ByRef pSize As UInteger   ' DWORD* in/out
) As UInteger
End Function

' forceNewInform : BOOL
' reserved : void* in/out
' adapterName : LPWSTR
' classId : DHCPV6CAPI_CLASSID* in/out
' recdParams : DHCPV6CAPI_PARAMS_ARRAY
' buffer : BYTE* in/out
' pSize : DWORD* in/out
Declare PtrSafe Function Dhcpv6RequestParams Lib "dhcpcsvc6" ( _
    ByVal forceNewInform As Long, _
    ByVal reserved As LongPtr, _
    ByVal adapterName As LongPtr, _
    ByVal classId As LongPtr, _
    ByVal recdParams As LongPtr, _
    ByVal buffer As LongPtr, _
    ByRef pSize As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

Dhcpv6RequestParams = ctypes.windll.dhcpcsvc6.Dhcpv6RequestParams
Dhcpv6RequestParams.restype = wintypes.DWORD
Dhcpv6RequestParams.argtypes = [
    wintypes.BOOL,  # forceNewInform : BOOL
    ctypes.POINTER(None),  # reserved : void* in/out
    wintypes.LPCWSTR,  # adapterName : LPWSTR
    ctypes.c_void_p,  # classId : DHCPV6CAPI_CLASSID* in/out
    DHCPV6CAPI_PARAMS_ARRAY,  # recdParams : DHCPV6CAPI_PARAMS_ARRAY
    ctypes.POINTER(ctypes.c_ubyte),  # buffer : BYTE* in/out
    ctypes.POINTER(wintypes.DWORD),  # pSize : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dhcpcsvc6.dll')
Dhcpv6RequestParams = Fiddle::Function.new(
  lib['Dhcpv6RequestParams'],
  [
    Fiddle::TYPE_INT,  # forceNewInform : BOOL
    Fiddle::TYPE_VOIDP,  # reserved : void* in/out
    Fiddle::TYPE_VOIDP,  # adapterName : LPWSTR
    Fiddle::TYPE_VOIDP,  # classId : DHCPV6CAPI_CLASSID* in/out
    Fiddle::TYPE_VOIDP,  # recdParams : DHCPV6CAPI_PARAMS_ARRAY
    Fiddle::TYPE_VOIDP,  # buffer : BYTE* in/out
    Fiddle::TYPE_VOIDP,  # pSize : DWORD* in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "dhcpcsvc6")]
extern "system" {
    fn Dhcpv6RequestParams(
        forceNewInform: i32,  // BOOL
        reserved: *mut (),  // void* in/out
        adapterName: *mut u16,  // LPWSTR
        classId: *mut DHCPV6CAPI_CLASSID,  // DHCPV6CAPI_CLASSID* in/out
        recdParams: DHCPV6CAPI_PARAMS_ARRAY,  // DHCPV6CAPI_PARAMS_ARRAY
        buffer: *mut u8,  // BYTE* in/out
        pSize: *mut u32  // DWORD* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("dhcpcsvc6.dll")]
public static extern uint Dhcpv6RequestParams(bool forceNewInform, IntPtr reserved, [MarshalAs(UnmanagedType.LPWStr)] string adapterName, IntPtr classId, DHCPV6CAPI_PARAMS_ARRAY recdParams, IntPtr buffer, ref uint pSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dhcpcsvc6_Dhcpv6RequestParams' -Namespace Win32 -PassThru
# $api::Dhcpv6RequestParams(forceNewInform, reserved, adapterName, classId, recdParams, buffer, pSize)

#uselib "dhcpcsvc6.dll"
#func global Dhcpv6RequestParams "Dhcpv6RequestParams" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; Dhcpv6RequestParams forceNewInform, reserved, adapterName, varptr(classId), recdParams, varptr(buffer), varptr(pSize)   ; 戻り値は stat
; forceNewInform : BOOL -> "sptr"
; reserved : void* in/out -> "sptr"
; adapterName : LPWSTR -> "sptr"
; classId : DHCPV6CAPI_CLASSID* in/out -> "sptr"
; recdParams : DHCPV6CAPI_PARAMS_ARRAY -> "sptr"
; buffer : BYTE* in/out -> "sptr"
; pSize : DWORD* in/out -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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。

出力引数:

#uselib "dhcpcsvc6.dll"
#cfunc global Dhcpv6RequestParams "Dhcpv6RequestParams" int, sptr, wstr, var, int, var, var
; res = Dhcpv6RequestParams(forceNewInform, reserved, adapterName, classId, recdParams, buffer, pSize)
; forceNewInform : BOOL -> "int"
; reserved : void* in/out -> "sptr"
; adapterName : LPWSTR -> "wstr"
; classId : DHCPV6CAPI_CLASSID* in/out -> "var"
; recdParams : DHCPV6CAPI_PARAMS_ARRAY -> "int"
; buffer : BYTE* in/out -> "var"
; pSize : DWORD* in/out -> "var"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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。#uselib "dhcpcsvc6.dll"
#cfunc global Dhcpv6RequestParams "Dhcpv6RequestParams" int, sptr, wstr, sptr, int, sptr, sptr
; res = Dhcpv6RequestParams(forceNewInform, reserved, adapterName, varptr(classId), recdParams, varptr(buffer), varptr(pSize))
; forceNewInform : BOOL -> "int"
; reserved : void* in/out -> "sptr"
; adapterName : LPWSTR -> "wstr"
; classId : DHCPV6CAPI_CLASSID* in/out -> "sptr"
; recdParams : DHCPV6CAPI_PARAMS_ARRAY -> "int"
; buffer : BYTE* in/out -> "sptr"
; pSize : DWORD* in/out -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; DWORD Dhcpv6RequestParams(BOOL forceNewInform, void* reserved, LPWSTR adapterName, DHCPV6CAPI_CLASSID* classId, DHCPV6CAPI_PARAMS_ARRAY recdParams, BYTE* buffer, DWORD* pSize)
#uselib "dhcpcsvc6.dll"
#cfunc global Dhcpv6RequestParams "Dhcpv6RequestParams" int, intptr, wstr, var, int, var, var
; res = Dhcpv6RequestParams(forceNewInform, reserved, adapterName, classId, recdParams, buffer, pSize)
; forceNewInform : BOOL -> "int"
; reserved : void* in/out -> "intptr"
; adapterName : LPWSTR -> "wstr"
; classId : DHCPV6CAPI_CLASSID* in/out -> "var"
; recdParams : DHCPV6CAPI_PARAMS_ARRAY -> "int"
; buffer : BYTE* in/out -> "var"
; pSize : DWORD* in/out -> "var"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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。; DWORD Dhcpv6RequestParams(BOOL forceNewInform, void* reserved, LPWSTR adapterName, DHCPV6CAPI_CLASSID* classId, DHCPV6CAPI_PARAMS_ARRAY recdParams, BYTE* buffer, DWORD* pSize)
#uselib "dhcpcsvc6.dll"
#cfunc global Dhcpv6RequestParams "Dhcpv6RequestParams" int, intptr, wstr, intptr, int, intptr, intptr
; res = Dhcpv6RequestParams(forceNewInform, reserved, adapterName, varptr(classId), recdParams, varptr(buffer), varptr(pSize))
; forceNewInform : BOOL -> "int"
; reserved : void* in/out -> "intptr"
; adapterName : LPWSTR -> "wstr"
; classId : DHCPV6CAPI_CLASSID* in/out -> "intptr"
; recdParams : DHCPV6CAPI_PARAMS_ARRAY -> "int"
; buffer : BYTE* in/out -> "intptr"
; pSize : DWORD* in/out -> "intptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

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

var (
	dhcpcsvc6 = windows.NewLazySystemDLL("dhcpcsvc6.dll")
	procDhcpv6RequestParams = dhcpcsvc6.NewProc("Dhcpv6RequestParams")
)

// forceNewInform (BOOL), reserved (void* in/out), adapterName (LPWSTR), classId (DHCPV6CAPI_CLASSID* in/out), recdParams (DHCPV6CAPI_PARAMS_ARRAY), buffer (BYTE* in/out), pSize (DWORD* in/out)
r1, _, err := procDhcpv6RequestParams.Call(
	uintptr(forceNewInform),
	uintptr(reserved),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(adapterName))),
	uintptr(classId),
	uintptr(recdParams),
	uintptr(buffer),
	uintptr(pSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function Dhcpv6RequestParams(
  forceNewInform: BOOL;   // BOOL
  reserved: Pointer;   // void* in/out
  adapterName: PWideChar;   // LPWSTR
  classId: Pointer;   // DHCPV6CAPI_CLASSID* in/out
  recdParams: DHCPV6CAPI_PARAMS_ARRAY;   // DHCPV6CAPI_PARAMS_ARRAY
  buffer: Pointer;   // BYTE* in/out
  pSize: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'dhcpcsvc6.dll' name 'Dhcpv6RequestParams';

result := DllCall("dhcpcsvc6\Dhcpv6RequestParams"
    , "Int", forceNewInform   ; BOOL
    , "Ptr", reserved   ; void* in/out
    , "WStr", adapterName   ; LPWSTR
    , "Ptr", classId   ; DHCPV6CAPI_CLASSID* in/out
    , "Ptr", recdParams   ; DHCPV6CAPI_PARAMS_ARRAY
    , "Ptr", buffer   ; BYTE* in/out
    , "Ptr", pSize   ; DWORD* in/out
    , "UInt")   ; return: DWORD

●Dhcpv6RequestParams(forceNewInform, reserved, adapterName, classId, recdParams, buffer, pSize) = DLL("dhcpcsvc6.dll", "dword Dhcpv6RequestParams(bool, void*, char*, void*, void*, void*, void*)")
# 呼び出し: Dhcpv6RequestParams(forceNewInform, reserved, adapterName, classId, recdParams, buffer, pSize)
# forceNewInform : BOOL -> "bool"
# reserved : void* in/out -> "void*"
# adapterName : LPWSTR -> "char*"
# classId : DHCPV6CAPI_CLASSID* in/out -> "void*"
# recdParams : DHCPV6CAPI_PARAMS_ARRAY -> "void*"
# buffer : BYTE* in/out -> "void*"
# pSize : DWORD* in/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 "dhcpcsvc6" fn Dhcpv6RequestParams(
    forceNewInform: i32, // BOOL
    reserved: ?*anyopaque, // void* in/out
    adapterName: [*c]const u16, // LPWSTR
    classId: [*c]DHCPV6CAPI_CLASSID, // DHCPV6CAPI_CLASSID* in/out
    recdParams: DHCPV6CAPI_PARAMS_ARRAY, // DHCPV6CAPI_PARAMS_ARRAY
    buffer: [*c]u8, // BYTE* in/out
    pSize: [*c]u32 // DWORD* in/out
) callconv(std.os.windows.WINAPI) u32;

proc Dhcpv6RequestParams(
    forceNewInform: int32,  # BOOL
    reserved: pointer,  # void* in/out
    adapterName: WideCString,  # LPWSTR
    classId: ptr DHCPV6CAPI_CLASSID,  # DHCPV6CAPI_CLASSID* in/out
    recdParams: DHCPV6CAPI_PARAMS_ARRAY,  # DHCPV6CAPI_PARAMS_ARRAY
    buffer: ptr uint8,  # BYTE* in/out
    pSize: ptr uint32  # DWORD* in/out
): uint32 {.importc: "Dhcpv6RequestParams", stdcall, dynlib: "dhcpcsvc6.dll".}

pragma(lib, "dhcpcsvc6");
extern(Windows)
uint Dhcpv6RequestParams(
    int forceNewInform,   // BOOL
    void* reserved,   // void* in/out
    const(wchar)* adapterName,   // LPWSTR
    DHCPV6CAPI_CLASSID* classId,   // DHCPV6CAPI_CLASSID* in/out
    DHCPV6CAPI_PARAMS_ARRAY recdParams,   // DHCPV6CAPI_PARAMS_ARRAY
    ubyte* buffer,   // BYTE* in/out
    uint* pSize   // DWORD* in/out
);

ccall((:Dhcpv6RequestParams, "dhcpcsvc6.dll"), stdcall, UInt32,
      (Int32, Ptr{Cvoid}, Cwstring, Ptr{DHCPV6CAPI_CLASSID}, DHCPV6CAPI_PARAMS_ARRAY, Ptr{UInt8}, Ptr{UInt32}),
      forceNewInform, reserved, adapterName, classId, recdParams, buffer, pSize)
# forceNewInform : BOOL -> Int32
# reserved : void* in/out -> Ptr{Cvoid}
# adapterName : LPWSTR -> Cwstring
# classId : DHCPV6CAPI_CLASSID* in/out -> Ptr{DHCPV6CAPI_CLASSID}
# recdParams : DHCPV6CAPI_PARAMS_ARRAY -> DHCPV6CAPI_PARAMS_ARRAY
# buffer : BYTE* in/out -> Ptr{UInt8}
# pSize : DWORD* in/out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t Dhcpv6RequestParams(
    int32_t forceNewInform,
    void* reserved,
    const uint16_t* adapterName,
    void* classId,
    DHCPV6CAPI_PARAMS_ARRAY recdParams,
    uint8_t* buffer,
    uint32_t* pSize);
]]
local dhcpcsvc6 = ffi.load("dhcpcsvc6")
-- dhcpcsvc6.Dhcpv6RequestParams(forceNewInform, reserved, adapterName, classId, recdParams, buffer, pSize)
-- forceNewInform : BOOL
-- reserved : void* in/out
-- adapterName : LPWSTR
-- classId : DHCPV6CAPI_CLASSID* in/out
-- recdParams : DHCPV6CAPI_PARAMS_ARRAY
-- buffer : BYTE* in/out
-- pSize : DWORD* in/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('dhcpcsvc6.dll');
const Dhcpv6RequestParams = lib.func('__stdcall', 'Dhcpv6RequestParams', 'uint32_t', ['int32_t', 'void *', 'str16', 'void *', 'DHCPV6CAPI_PARAMS_ARRAY', 'uint8_t *', 'uint32_t *']);
// Dhcpv6RequestParams(forceNewInform, reserved, adapterName, classId, recdParams, buffer, pSize)
// forceNewInform : BOOL -> 'int32_t'
// reserved : void* in/out -> 'void *'
// adapterName : LPWSTR -> 'str16'
// classId : DHCPV6CAPI_CLASSID* in/out -> 'void *'
// recdParams : DHCPV6CAPI_PARAMS_ARRAY -> 'DHCPV6CAPI_PARAMS_ARRAY'
// buffer : BYTE* in/out -> 'uint8_t *'
// pSize : DWORD* in/out -> 'uint32_t *'
// 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("dhcpcsvc6.dll", {
  Dhcpv6RequestParams: { parameters: ["i32", "pointer", "buffer", "pointer", "buffer", "pointer", "pointer"], result: "u32" },
});
// lib.symbols.Dhcpv6RequestParams(forceNewInform, reserved, adapterName, classId, recdParams, buffer, pSize)
// forceNewInform : BOOL -> "i32"
// reserved : void* in/out -> "pointer"
// adapterName : LPWSTR -> "buffer"
// classId : DHCPV6CAPI_CLASSID* in/out -> "pointer"
// recdParams : DHCPV6CAPI_PARAMS_ARRAY -> "buffer"
// buffer : BYTE* in/out -> "pointer"
// pSize : DWORD* in/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 Dhcpv6RequestParams(
    int32_t forceNewInform,
    void* reserved,
    const uint16_t* adapterName,
    void* classId,
    DHCPV6CAPI_PARAMS_ARRAY recdParams,
    uint8_t* buffer,
    uint32_t* pSize);
C, "dhcpcsvc6.dll");
// $ffi->Dhcpv6RequestParams(forceNewInform, reserved, adapterName, classId, recdParams, buffer, pSize);
// forceNewInform : BOOL
// reserved : void* in/out
// adapterName : LPWSTR
// classId : DHCPV6CAPI_CLASSID* in/out
// recdParams : DHCPV6CAPI_PARAMS_ARRAY
// buffer : BYTE* in/out
// pSize : DWORD* in/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 Dhcpcsvc6 extends StdCallLibrary {
    Dhcpcsvc6 INSTANCE = Native.load("dhcpcsvc6", Dhcpcsvc6.class);
    int Dhcpv6RequestParams(
        boolean forceNewInform,   // BOOL
        Pointer reserved,   // void* in/out
        WString adapterName,   // LPWSTR
        Pointer classId,   // DHCPV6CAPI_CLASSID* in/out
        DHCPV6CAPI_PARAMS_ARRAY /* extends Structure (by value) */ recdParams,   // DHCPV6CAPI_PARAMS_ARRAY
        byte[] buffer,   // BYTE* in/out
        IntByReference pSize   // DWORD* in/out
    );
}

@[Link("dhcpcsvc6")]
lib Libdhcpcsvc6
  fun Dhcpv6RequestParams = Dhcpv6RequestParams(
    forceNewInform : Int32,   # BOOL
    reserved : Void*,   # void* in/out
    adapterName : UInt16*,   # LPWSTR
    classId : DHCPV6CAPI_CLASSID*,   # DHCPV6CAPI_CLASSID* in/out
    recdParams : DHCPV6CAPI_PARAMS_ARRAY,   # DHCPV6CAPI_PARAMS_ARRAY
    buffer : UInt8*,   # BYTE* in/out
    pSize : UInt32*   # DWORD* in/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 Dhcpv6RequestParamsNative = Uint32 Function(Int32, Pointer<Void>, Pointer<Utf16>, Pointer<Void>, DHCPV6CAPI_PARAMS_ARRAY, Pointer<Uint8>, Pointer<Uint32>);
typedef Dhcpv6RequestParamsDart = int Function(int, Pointer<Void>, Pointer<Utf16>, Pointer<Void>, int, Pointer<Uint8>, Pointer<Uint32>);
final Dhcpv6RequestParams = DynamicLibrary.open('dhcpcsvc6.dll')
    .lookupFunction<Dhcpv6RequestParamsNative, Dhcpv6RequestParamsDart>('Dhcpv6RequestParams');
// forceNewInform : BOOL -> Int32
// reserved : void* in/out -> Pointer<Void>
// adapterName : LPWSTR -> Pointer<Utf16>
// classId : DHCPV6CAPI_CLASSID* in/out -> Pointer<Void>
// recdParams : DHCPV6CAPI_PARAMS_ARRAY -> DHCPV6CAPI_PARAMS_ARRAY
// buffer : BYTE* in/out -> Pointer<Uint8>
// pSize : DWORD* in/out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function Dhcpv6RequestParams(
  forceNewInform: BOOL;   // BOOL
  reserved: Pointer;   // void* in/out
  adapterName: PWideChar;   // LPWSTR
  classId: Pointer;   // DHCPV6CAPI_CLASSID* in/out
  recdParams: DHCPV6CAPI_PARAMS_ARRAY;   // DHCPV6CAPI_PARAMS_ARRAY
  buffer: Pointer;   // BYTE* in/out
  pSize: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'dhcpcsvc6.dll' name 'Dhcpv6RequestParams';

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

foreign import stdcall safe "Dhcpv6RequestParams"
  c_Dhcpv6RequestParams :: CInt -> Ptr () -> CWString -> Ptr () -> DHCPV6CAPI_PARAMS_ARRAY -> Ptr Word8 -> Ptr Word32 -> IO Word32
-- forceNewInform : BOOL -> CInt
-- reserved : void* in/out -> Ptr ()
-- adapterName : LPWSTR -> CWString
-- classId : DHCPV6CAPI_CLASSID* in/out -> Ptr ()
-- recdParams : DHCPV6CAPI_PARAMS_ARRAY -> DHCPV6CAPI_PARAMS_ARRAY
-- buffer : BYTE* in/out -> Ptr Word8
-- pSize : DWORD* in/out -> Ptr Word32
-- 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。
-- ※値渡し構造体は GHC FFI で直接渡せません。Ptr で渡すラッパ(C側)経由にしてください。

open Ctypes
open Foreign

let dhcpv6requestparams =
  foreign "Dhcpv6RequestParams"
    (int32_t @-> (ptr void) @-> (ptr uint16_t) @-> (ptr void) @-> DHCPV6CAPI_PARAMS_ARRAY @-> (ptr uint8_t) @-> (ptr uint32_t) @-> returning uint32_t)
(* forceNewInform : BOOL -> int32_t *)
(* reserved : void* in/out -> (ptr void) *)
(* adapterName : LPWSTR -> (ptr uint16_t) *)
(* classId : DHCPV6CAPI_CLASSID* in/out -> (ptr void) *)
(* recdParams : DHCPV6CAPI_PARAMS_ARRAY -> DHCPV6CAPI_PARAMS_ARRAY *)
(* buffer : BYTE* in/out -> (ptr uint8_t) *)
(* pSize : DWORD* in/out -> (ptr uint32_t) *)
(* 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 dhcpcsvc6 (t "dhcpcsvc6.dll"))
(cffi:use-foreign-library dhcpcsvc6)

(cffi:defcfun ("Dhcpv6RequestParams" dhcpv6-request-params :convention :stdcall) :uint32
  (force-new-inform :int32)   ; BOOL
  (reserved :pointer)   ; void* in/out
  (adapter-name (:string :encoding :utf-16le))   ; LPWSTR
  (class-id :pointer)   ; DHCPV6CAPI_CLASSID* in/out
  (recd-params (:struct dhcpv6-capi-params-array))   ; DHCPV6CAPI_PARAMS_ARRAY
  (buffer :pointer)   ; BYTE* in/out
  (p-size :pointer))   ; DWORD* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $Dhcpv6RequestParams = Win32::API::More->new('dhcpcsvc6',
    'DWORD Dhcpv6RequestParams(BOOL forceNewInform, LPVOID reserved, LPCWSTR adapterName, LPVOID classId, LPVOID recdParams, LPVOID buffer, LPVOID pSize)');
# my $ret = $Dhcpv6RequestParams->Call($forceNewInform, $reserved, $adapterName, $classId, $recdParams, $buffer, $pSize);
# forceNewInform : BOOL -> BOOL
# reserved : void* in/out -> LPVOID
# adapterName : LPWSTR -> LPCWSTR
# classId : DHCPV6CAPI_CLASSID* in/out -> LPVOID
# recdParams : DHCPV6CAPI_PARAMS_ARRAY -> LPVOID
# buffer : BYTE* in/out -> LPVOID
# pSize : DWORD* in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

Dhcpv6RequestParams

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