DhcpUndoRequestParams

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

DWORD DhcpUndoRequestParams(
    DWORD Flags,   // optional
    void* Reserved,   // optional
    LPWSTR AdapterName,
    LPWSTR RequestIdStr
);

<DllImport("dhcpcsvc.dll", ExactSpelling:=True)>
Public Shared Function DhcpUndoRequestParams(
    Flags As UInteger,   ' DWORD optional
    Reserved As IntPtr,   ' void* optional
    <MarshalAs(UnmanagedType.LPWStr)> AdapterName As String,   ' LPWSTR
    <MarshalAs(UnmanagedType.LPWStr)> RequestIdStr As String   ' LPWSTR
) As UInteger
End Function

' Flags : DWORD optional
' Reserved : void* optional
' AdapterName : LPWSTR
' RequestIdStr : LPWSTR
Declare PtrSafe Function DhcpUndoRequestParams Lib "dhcpcsvc" ( _
    ByVal Flags As Long, _
    ByVal Reserved As LongPtr, _
    ByVal AdapterName As LongPtr, _
    ByVal RequestIdStr 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

DhcpUndoRequestParams = ctypes.windll.dhcpcsvc.DhcpUndoRequestParams
DhcpUndoRequestParams.restype = wintypes.DWORD
DhcpUndoRequestParams.argtypes = [
    wintypes.DWORD,  # Flags : DWORD optional
    ctypes.POINTER(None),  # Reserved : void* optional
    wintypes.LPCWSTR,  # AdapterName : LPWSTR
    wintypes.LPCWSTR,  # RequestIdStr : LPWSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dhcpcsvc.dll')
DhcpUndoRequestParams = Fiddle::Function.new(
  lib['DhcpUndoRequestParams'],
  [
    -Fiddle::TYPE_INT,  # Flags : DWORD optional
    Fiddle::TYPE_VOIDP,  # Reserved : void* optional
    Fiddle::TYPE_VOIDP,  # AdapterName : LPWSTR
    Fiddle::TYPE_VOIDP,  # RequestIdStr : LPWSTR
  ],
  -Fiddle::TYPE_INT)

#[link(name = "dhcpcsvc")]
extern "system" {
    fn DhcpUndoRequestParams(
        Flags: u32,  // DWORD optional
        Reserved: *mut (),  // void* optional
        AdapterName: *mut u16,  // LPWSTR
        RequestIdStr: *mut u16  // LPWSTR
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("dhcpcsvc.dll")]
public static extern uint DhcpUndoRequestParams(uint Flags, IntPtr Reserved, [MarshalAs(UnmanagedType.LPWStr)] string AdapterName, [MarshalAs(UnmanagedType.LPWStr)] string RequestIdStr);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dhcpcsvc_DhcpUndoRequestParams' -Namespace Win32 -PassThru
# $api::DhcpUndoRequestParams(Flags, Reserved, AdapterName, RequestIdStr)

#uselib "dhcpcsvc.dll"
#func global DhcpUndoRequestParams "DhcpUndoRequestParams" sptr, sptr, sptr, sptr
; DhcpUndoRequestParams Flags, Reserved, AdapterName, RequestIdStr   ; 戻り値は stat
; Flags : DWORD optional -> "sptr"
; Reserved : void* optional -> "sptr"
; AdapterName : LPWSTR -> "sptr"
; RequestIdStr : LPWSTR -> "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。

#uselib "dhcpcsvc.dll"
#cfunc global DhcpUndoRequestParams "DhcpUndoRequestParams" int, sptr, wstr, wstr
; res = DhcpUndoRequestParams(Flags, Reserved, AdapterName, RequestIdStr)
; Flags : DWORD optional -> "int"
; Reserved : void* optional -> "sptr"
; AdapterName : LPWSTR -> "wstr"
; RequestIdStr : LPWSTR -> "wstr"

; DWORD DhcpUndoRequestParams(DWORD Flags, void* Reserved, LPWSTR AdapterName, LPWSTR RequestIdStr)
#uselib "dhcpcsvc.dll"
#cfunc global DhcpUndoRequestParams "DhcpUndoRequestParams" int, intptr, wstr, wstr
; res = DhcpUndoRequestParams(Flags, Reserved, AdapterName, RequestIdStr)
; Flags : DWORD optional -> "int"
; Reserved : void* optional -> "intptr"
; AdapterName : LPWSTR -> "wstr"
; RequestIdStr : LPWSTR -> "wstr"

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

var (
	dhcpcsvc = windows.NewLazySystemDLL("dhcpcsvc.dll")
	procDhcpUndoRequestParams = dhcpcsvc.NewProc("DhcpUndoRequestParams")
)

// Flags (DWORD optional), Reserved (void* optional), AdapterName (LPWSTR), RequestIdStr (LPWSTR)
r1, _, err := procDhcpUndoRequestParams.Call(
	uintptr(Flags),
	uintptr(Reserved),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(AdapterName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(RequestIdStr))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function DhcpUndoRequestParams(
  Flags: DWORD;   // DWORD optional
  Reserved: Pointer;   // void* optional
  AdapterName: PWideChar;   // LPWSTR
  RequestIdStr: PWideChar   // LPWSTR
): DWORD; stdcall;
  external 'dhcpcsvc.dll' name 'DhcpUndoRequestParams';

result := DllCall("dhcpcsvc\DhcpUndoRequestParams"
    , "UInt", Flags   ; DWORD optional
    , "Ptr", Reserved   ; void* optional
    , "WStr", AdapterName   ; LPWSTR
    , "WStr", RequestIdStr   ; LPWSTR
    , "UInt")   ; return: DWORD

●DhcpUndoRequestParams(Flags, Reserved, AdapterName, RequestIdStr) = DLL("dhcpcsvc.dll", "dword DhcpUndoRequestParams(dword, void*, char*, char*)")
# 呼び出し: DhcpUndoRequestParams(Flags, Reserved, AdapterName, RequestIdStr)
# Flags : DWORD optional -> "dword"
# Reserved : void* optional -> "void*"
# AdapterName : LPWSTR -> "char*"
# RequestIdStr : LPWSTR -> "char*"
# 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 "dhcpcsvc" fn DhcpUndoRequestParams(
    Flags: u32, // DWORD optional
    Reserved: ?*anyopaque, // void* optional
    AdapterName: [*c]const u16, // LPWSTR
    RequestIdStr: [*c]const u16 // LPWSTR
) callconv(std.os.windows.WINAPI) u32;

proc DhcpUndoRequestParams(
    Flags: uint32,  # DWORD optional
    Reserved: pointer,  # void* optional
    AdapterName: WideCString,  # LPWSTR
    RequestIdStr: WideCString  # LPWSTR
): uint32 {.importc: "DhcpUndoRequestParams", stdcall, dynlib: "dhcpcsvc.dll".}

pragma(lib, "dhcpcsvc");
extern(Windows)
uint DhcpUndoRequestParams(
    uint Flags,   // DWORD optional
    void* Reserved,   // void* optional
    const(wchar)* AdapterName,   // LPWSTR
    const(wchar)* RequestIdStr   // LPWSTR
);

ccall((:DhcpUndoRequestParams, "dhcpcsvc.dll"), stdcall, UInt32,
      (UInt32, Ptr{Cvoid}, Cwstring, Cwstring),
      Flags, Reserved, AdapterName, RequestIdStr)
# Flags : DWORD optional -> UInt32
# Reserved : void* optional -> Ptr{Cvoid}
# AdapterName : LPWSTR -> Cwstring
# RequestIdStr : LPWSTR -> Cwstring
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t DhcpUndoRequestParams(
    uint32_t Flags,
    void* Reserved,
    const uint16_t* AdapterName,
    const uint16_t* RequestIdStr);
]]
local dhcpcsvc = ffi.load("dhcpcsvc")
-- dhcpcsvc.DhcpUndoRequestParams(Flags, Reserved, AdapterName, RequestIdStr)
-- Flags : DWORD optional
-- Reserved : void* optional
-- AdapterName : LPWSTR
-- RequestIdStr : LPWSTR
-- 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('dhcpcsvc.dll');
const DhcpUndoRequestParams = lib.func('__stdcall', 'DhcpUndoRequestParams', 'uint32_t', ['uint32_t', 'void *', 'str16', 'str16']);
// DhcpUndoRequestParams(Flags, Reserved, AdapterName, RequestIdStr)
// Flags : DWORD optional -> 'uint32_t'
// Reserved : void* optional -> 'void *'
// AdapterName : LPWSTR -> 'str16'
// RequestIdStr : LPWSTR -> 'str16'
// 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("dhcpcsvc.dll", {
  DhcpUndoRequestParams: { parameters: ["u32", "pointer", "buffer", "buffer"], result: "u32" },
});
// lib.symbols.DhcpUndoRequestParams(Flags, Reserved, AdapterName, RequestIdStr)
// Flags : DWORD optional -> "u32"
// Reserved : void* optional -> "pointer"
// AdapterName : LPWSTR -> "buffer"
// RequestIdStr : LPWSTR -> "buffer"
// 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 DhcpUndoRequestParams(
    uint32_t Flags,
    void* Reserved,
    const uint16_t* AdapterName,
    const uint16_t* RequestIdStr);
C, "dhcpcsvc.dll");
// $ffi->DhcpUndoRequestParams(Flags, Reserved, AdapterName, RequestIdStr);
// Flags : DWORD optional
// Reserved : void* optional
// AdapterName : LPWSTR
// RequestIdStr : LPWSTR
// 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 Dhcpcsvc extends StdCallLibrary {
    Dhcpcsvc INSTANCE = Native.load("dhcpcsvc", Dhcpcsvc.class);
    int DhcpUndoRequestParams(
        int Flags,   // DWORD optional
        Pointer Reserved,   // void* optional
        WString AdapterName,   // LPWSTR
        WString RequestIdStr   // LPWSTR
    );
}

@[Link("dhcpcsvc")]
lib Libdhcpcsvc
  fun DhcpUndoRequestParams = DhcpUndoRequestParams(
    Flags : UInt32,   # DWORD optional
    Reserved : Void*,   # void* optional
    AdapterName : UInt16*,   # LPWSTR
    RequestIdStr : UInt16*   # LPWSTR
  ) : 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 DhcpUndoRequestParamsNative = Uint32 Function(Uint32, Pointer<Void>, Pointer<Utf16>, Pointer<Utf16>);
typedef DhcpUndoRequestParamsDart = int Function(int, Pointer<Void>, Pointer<Utf16>, Pointer<Utf16>);
final DhcpUndoRequestParams = DynamicLibrary.open('dhcpcsvc.dll')
    .lookupFunction<DhcpUndoRequestParamsNative, DhcpUndoRequestParamsDart>('DhcpUndoRequestParams');
// Flags : DWORD optional -> Uint32
// Reserved : void* optional -> Pointer<Void>
// AdapterName : LPWSTR -> Pointer<Utf16>
// RequestIdStr : LPWSTR -> Pointer<Utf16>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function DhcpUndoRequestParams(
  Flags: DWORD;   // DWORD optional
  Reserved: Pointer;   // void* optional
  AdapterName: PWideChar;   // LPWSTR
  RequestIdStr: PWideChar   // LPWSTR
): DWORD; stdcall;
  external 'dhcpcsvc.dll' name 'DhcpUndoRequestParams';

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

foreign import stdcall safe "DhcpUndoRequestParams"
  c_DhcpUndoRequestParams :: Word32 -> Ptr () -> CWString -> CWString -> IO Word32
-- Flags : DWORD optional -> Word32
-- Reserved : void* optional -> Ptr ()
-- AdapterName : LPWSTR -> CWString
-- RequestIdStr : LPWSTR -> CWString
-- 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 dhcpundorequestparams =
  foreign "DhcpUndoRequestParams"
    (uint32_t @-> (ptr void) @-> (ptr uint16_t) @-> (ptr uint16_t) @-> returning uint32_t)
(* Flags : DWORD optional -> uint32_t *)
(* Reserved : void* optional -> (ptr void) *)
(* AdapterName : LPWSTR -> (ptr uint16_t) *)
(* RequestIdStr : LPWSTR -> (ptr uint16_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 dhcpcsvc (t "dhcpcsvc.dll"))
(cffi:use-foreign-library dhcpcsvc)

(cffi:defcfun ("DhcpUndoRequestParams" dhcp-undo-request-params :convention :stdcall) :uint32
  (flags :uint32)   ; DWORD optional
  (reserved :pointer)   ; void* optional
  (adapter-name (:string :encoding :utf-16le))   ; LPWSTR
  (request-id-str (:string :encoding :utf-16le)))   ; LPWSTR
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $DhcpUndoRequestParams = Win32::API::More->new('dhcpcsvc',
    'DWORD DhcpUndoRequestParams(DWORD Flags, LPVOID Reserved, LPCWSTR AdapterName, LPCWSTR RequestIdStr)');
# my $ret = $DhcpUndoRequestParams->Call($Flags, $Reserved, $AdapterName, $RequestIdStr);
# Flags : DWORD optional -> DWORD
# Reserved : void* optional -> LPVOID
# AdapterName : LPWSTR -> LPCWSTR
# RequestIdStr : LPWSTR -> LPCWSTR
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。