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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)。