DhcpServerQueryDnsRegCredentials

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

DWORD DhcpServerQueryDnsRegCredentials(
    LPWSTR ServerIpAddress,   // optional
    DWORD UnameSize,
    LPWSTR Uname,
    DWORD DomainSize,
    LPWSTR Domain
);

<DllImport("DHCPSAPI.dll", ExactSpelling:=True)>
Public Shared Function DhcpServerQueryDnsRegCredentials(
    <MarshalAs(UnmanagedType.LPWStr)> ServerIpAddress As String,   ' LPWSTR optional
    UnameSize As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPWStr)> Uname As System.Text.StringBuilder,   ' LPWSTR out
    DomainSize As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPWStr)> Domain As System.Text.StringBuilder   ' LPWSTR out
) As UInteger
End Function

' ServerIpAddress : LPWSTR optional
' UnameSize : DWORD
' Uname : LPWSTR out
' DomainSize : DWORD
' Domain : LPWSTR out
Declare PtrSafe Function DhcpServerQueryDnsRegCredentials Lib "dhcpsapi" ( _
    ByVal ServerIpAddress As LongPtr, _
    ByVal UnameSize As Long, _
    ByVal Uname As LongPtr, _
    ByVal DomainSize As Long, _
    ByVal Domain 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

DhcpServerQueryDnsRegCredentials = ctypes.windll.dhcpsapi.DhcpServerQueryDnsRegCredentials
DhcpServerQueryDnsRegCredentials.restype = wintypes.DWORD
DhcpServerQueryDnsRegCredentials.argtypes = [
    wintypes.LPCWSTR,  # ServerIpAddress : LPWSTR optional
    wintypes.DWORD,  # UnameSize : DWORD
    wintypes.LPWSTR,  # Uname : LPWSTR out
    wintypes.DWORD,  # DomainSize : DWORD
    wintypes.LPWSTR,  # Domain : LPWSTR out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('DHCPSAPI.dll')
DhcpServerQueryDnsRegCredentials = Fiddle::Function.new(
  lib['DhcpServerQueryDnsRegCredentials'],
  [
    Fiddle::TYPE_VOIDP,  # ServerIpAddress : LPWSTR optional
    -Fiddle::TYPE_INT,  # UnameSize : DWORD
    Fiddle::TYPE_VOIDP,  # Uname : LPWSTR out
    -Fiddle::TYPE_INT,  # DomainSize : DWORD
    Fiddle::TYPE_VOIDP,  # Domain : LPWSTR out
  ],
  -Fiddle::TYPE_INT)

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

$sig = @"
[DllImport("DHCPSAPI.dll")]
public static extern uint DhcpServerQueryDnsRegCredentials([MarshalAs(UnmanagedType.LPWStr)] string ServerIpAddress, uint UnameSize, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder Uname, uint DomainSize, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder Domain);
"@
$api = Add-Type -MemberDefinition $sig -Name 'DHCPSAPI_DhcpServerQueryDnsRegCredentials' -Namespace Win32 -PassThru
# $api::DhcpServerQueryDnsRegCredentials(ServerIpAddress, UnameSize, Uname, DomainSize, Domain)

#uselib "DHCPSAPI.dll"
#func global DhcpServerQueryDnsRegCredentials "DhcpServerQueryDnsRegCredentials" sptr, sptr, sptr, sptr, sptr
; DhcpServerQueryDnsRegCredentials ServerIpAddress, UnameSize, varptr(Uname), DomainSize, varptr(Domain)   ; 戻り値は stat
; ServerIpAddress : LPWSTR optional -> "sptr"
; UnameSize : DWORD -> "sptr"
; Uname : LPWSTR out -> "sptr"
; DomainSize : DWORD -> "sptr"
; Domain : LPWSTR 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")
	procDhcpServerQueryDnsRegCredentials = dhcpsapi.NewProc("DhcpServerQueryDnsRegCredentials")
)

// ServerIpAddress (LPWSTR optional), UnameSize (DWORD), Uname (LPWSTR out), DomainSize (DWORD), Domain (LPWSTR out)
r1, _, err := procDhcpServerQueryDnsRegCredentials.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(ServerIpAddress))),
	uintptr(UnameSize),
	uintptr(Uname),
	uintptr(DomainSize),
	uintptr(Domain),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function DhcpServerQueryDnsRegCredentials(
  ServerIpAddress: PWideChar;   // LPWSTR optional
  UnameSize: DWORD;   // DWORD
  Uname: PWideChar;   // LPWSTR out
  DomainSize: DWORD;   // DWORD
  Domain: PWideChar   // LPWSTR out
): DWORD; stdcall;
  external 'DHCPSAPI.dll' name 'DhcpServerQueryDnsRegCredentials';

result := DllCall("DHCPSAPI\DhcpServerQueryDnsRegCredentials"
    , "WStr", ServerIpAddress   ; LPWSTR optional
    , "UInt", UnameSize   ; DWORD
    , "Ptr", Uname   ; LPWSTR out
    , "UInt", DomainSize   ; DWORD
    , "Ptr", Domain   ; LPWSTR out
    , "UInt")   ; return: DWORD

●DhcpServerQueryDnsRegCredentials(ServerIpAddress, UnameSize, Uname, DomainSize, Domain) = DLL("DHCPSAPI.dll", "dword DhcpServerQueryDnsRegCredentials(char*, dword, char*, dword, char*)")
# 呼び出し: DhcpServerQueryDnsRegCredentials(ServerIpAddress, UnameSize, Uname, DomainSize, Domain)
# ServerIpAddress : LPWSTR optional -> "char*"
# UnameSize : DWORD -> "dword"
# Uname : LPWSTR out -> "char*"
# DomainSize : DWORD -> "dword"
# Domain : LPWSTR out -> "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 "dhcpsapi" fn DhcpServerQueryDnsRegCredentials(
    ServerIpAddress: [*c]const u16, // LPWSTR optional
    UnameSize: u32, // DWORD
    Uname: [*c]u16, // LPWSTR out
    DomainSize: u32, // DWORD
    Domain: [*c]u16 // LPWSTR out
) callconv(std.os.windows.WINAPI) u32;

proc DhcpServerQueryDnsRegCredentials(
    ServerIpAddress: WideCString,  # LPWSTR optional
    UnameSize: uint32,  # DWORD
    Uname: ptr uint16,  # LPWSTR out
    DomainSize: uint32,  # DWORD
    Domain: ptr uint16  # LPWSTR out
): uint32 {.importc: "DhcpServerQueryDnsRegCredentials", stdcall, dynlib: "DHCPSAPI.dll".}

pragma(lib, "dhcpsapi");
extern(Windows)
uint DhcpServerQueryDnsRegCredentials(
    const(wchar)* ServerIpAddress,   // LPWSTR optional
    uint UnameSize,   // DWORD
    wchar* Uname,   // LPWSTR out
    uint DomainSize,   // DWORD
    wchar* Domain   // LPWSTR out
);

ccall((:DhcpServerQueryDnsRegCredentials, "DHCPSAPI.dll"), stdcall, UInt32,
      (Cwstring, UInt32, Ptr{UInt16}, UInt32, Ptr{UInt16}),
      ServerIpAddress, UnameSize, Uname, DomainSize, Domain)
# ServerIpAddress : LPWSTR optional -> Cwstring
# UnameSize : DWORD -> UInt32
# Uname : LPWSTR out -> Ptr{UInt16}
# DomainSize : DWORD -> UInt32
# Domain : LPWSTR out -> Ptr{UInt16}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t DhcpServerQueryDnsRegCredentials(
    const uint16_t* ServerIpAddress,
    uint32_t UnameSize,
    uint16_t* Uname,
    uint32_t DomainSize,
    uint16_t* Domain);
]]
local dhcpsapi = ffi.load("dhcpsapi")
-- dhcpsapi.DhcpServerQueryDnsRegCredentials(ServerIpAddress, UnameSize, Uname, DomainSize, Domain)
-- ServerIpAddress : LPWSTR optional
-- UnameSize : DWORD
-- Uname : LPWSTR out
-- DomainSize : DWORD
-- Domain : LPWSTR 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 DhcpServerQueryDnsRegCredentials = lib.func('__stdcall', 'DhcpServerQueryDnsRegCredentials', 'uint32_t', ['str16', 'uint32_t', 'uint16_t *', 'uint32_t', 'uint16_t *']);
// DhcpServerQueryDnsRegCredentials(ServerIpAddress, UnameSize, Uname, DomainSize, Domain)
// ServerIpAddress : LPWSTR optional -> 'str16'
// UnameSize : DWORD -> 'uint32_t'
// Uname : LPWSTR out -> 'uint16_t *'
// DomainSize : DWORD -> 'uint32_t'
// Domain : LPWSTR out -> 'uint16_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("DHCPSAPI.dll", {
  DhcpServerQueryDnsRegCredentials: { parameters: ["buffer", "u32", "buffer", "u32", "buffer"], result: "u32" },
});
// lib.symbols.DhcpServerQueryDnsRegCredentials(ServerIpAddress, UnameSize, Uname, DomainSize, Domain)
// ServerIpAddress : LPWSTR optional -> "buffer"
// UnameSize : DWORD -> "u32"
// Uname : LPWSTR out -> "buffer"
// DomainSize : DWORD -> "u32"
// Domain : LPWSTR out -> "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 DhcpServerQueryDnsRegCredentials(
    const uint16_t* ServerIpAddress,
    uint32_t UnameSize,
    uint16_t* Uname,
    uint32_t DomainSize,
    uint16_t* Domain);
C, "DHCPSAPI.dll");
// $ffi->DhcpServerQueryDnsRegCredentials(ServerIpAddress, UnameSize, Uname, DomainSize, Domain);
// ServerIpAddress : LPWSTR optional
// UnameSize : DWORD
// Uname : LPWSTR out
// DomainSize : DWORD
// Domain : LPWSTR 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 DhcpServerQueryDnsRegCredentials(
        WString ServerIpAddress,   // LPWSTR optional
        int UnameSize,   // DWORD
        char[] Uname,   // LPWSTR out
        int DomainSize,   // DWORD
        char[] Domain   // LPWSTR out
    );
}

@[Link("dhcpsapi")]
lib LibDHCPSAPI
  fun DhcpServerQueryDnsRegCredentials = DhcpServerQueryDnsRegCredentials(
    ServerIpAddress : UInt16*,   # LPWSTR optional
    UnameSize : UInt32,   # DWORD
    Uname : UInt16*,   # LPWSTR out
    DomainSize : UInt32,   # DWORD
    Domain : UInt16*   # LPWSTR 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 DhcpServerQueryDnsRegCredentialsNative = Uint32 Function(Pointer<Utf16>, Uint32, Pointer<Utf16>, Uint32, Pointer<Utf16>);
typedef DhcpServerQueryDnsRegCredentialsDart = int Function(Pointer<Utf16>, int, Pointer<Utf16>, int, Pointer<Utf16>);
final DhcpServerQueryDnsRegCredentials = DynamicLibrary.open('DHCPSAPI.dll')
    .lookupFunction<DhcpServerQueryDnsRegCredentialsNative, DhcpServerQueryDnsRegCredentialsDart>('DhcpServerQueryDnsRegCredentials');
// ServerIpAddress : LPWSTR optional -> Pointer<Utf16>
// UnameSize : DWORD -> Uint32
// Uname : LPWSTR out -> Pointer<Utf16>
// DomainSize : DWORD -> Uint32
// Domain : LPWSTR out -> Pointer<Utf16>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function DhcpServerQueryDnsRegCredentials(
  ServerIpAddress: PWideChar;   // LPWSTR optional
  UnameSize: DWORD;   // DWORD
  Uname: PWideChar;   // LPWSTR out
  DomainSize: DWORD;   // DWORD
  Domain: PWideChar   // LPWSTR out
): DWORD; stdcall;
  external 'DHCPSAPI.dll' name 'DhcpServerQueryDnsRegCredentials';

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

foreign import stdcall safe "DhcpServerQueryDnsRegCredentials"
  c_DhcpServerQueryDnsRegCredentials :: CWString -> Word32 -> CWString -> Word32 -> CWString -> IO Word32
-- ServerIpAddress : LPWSTR optional -> CWString
-- UnameSize : DWORD -> Word32
-- Uname : LPWSTR out -> CWString
-- DomainSize : DWORD -> Word32
-- Domain : LPWSTR out -> 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 dhcpserverquerydnsregcredentials =
  foreign "DhcpServerQueryDnsRegCredentials"
    ((ptr uint16_t) @-> uint32_t @-> (ptr uint16_t) @-> uint32_t @-> (ptr uint16_t) @-> returning uint32_t)
(* ServerIpAddress : LPWSTR optional -> (ptr uint16_t) *)
(* UnameSize : DWORD -> uint32_t *)
(* Uname : LPWSTR out -> (ptr uint16_t) *)
(* DomainSize : DWORD -> uint32_t *)
(* Domain : LPWSTR out -> (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 dhcpsapi (t "DHCPSAPI.dll"))
(cffi:use-foreign-library dhcpsapi)

(cffi:defcfun ("DhcpServerQueryDnsRegCredentials" dhcp-server-query-dns-reg-credentials :convention :stdcall) :uint32
  (server-ip-address (:string :encoding :utf-16le))   ; LPWSTR optional
  (uname-size :uint32)   ; DWORD
  (uname :pointer)   ; LPWSTR out
  (domain-size :uint32)   ; DWORD
  (domain :pointer))   ; LPWSTR out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

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