DhcpV4FailoverGetSystemTime

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

DWORD DhcpV4FailoverGetSystemTime(
    LPWSTR ServerIpAddress,   // optional
    DWORD* pTime,
    DWORD* pMaxAllowedDeltaTime
);

<DllImport("DHCPSAPI.dll", ExactSpelling:=True)>
Public Shared Function DhcpV4FailoverGetSystemTime(
    <MarshalAs(UnmanagedType.LPWStr)> ServerIpAddress As String,   ' LPWSTR optional
    <Out> ByRef pTime As UInteger,   ' DWORD* out
    <Out> ByRef pMaxAllowedDeltaTime As UInteger   ' DWORD* out
) As UInteger
End Function

' ServerIpAddress : LPWSTR optional
' pTime : DWORD* out
' pMaxAllowedDeltaTime : DWORD* out
Declare PtrSafe Function DhcpV4FailoverGetSystemTime Lib "dhcpsapi" ( _
    ByVal ServerIpAddress As LongPtr, _
    ByRef pTime As Long, _
    ByRef pMaxAllowedDeltaTime 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

DhcpV4FailoverGetSystemTime = ctypes.windll.dhcpsapi.DhcpV4FailoverGetSystemTime
DhcpV4FailoverGetSystemTime.restype = wintypes.DWORD
DhcpV4FailoverGetSystemTime.argtypes = [
    wintypes.LPCWSTR,  # ServerIpAddress : LPWSTR optional
    ctypes.POINTER(wintypes.DWORD),  # pTime : DWORD* out
    ctypes.POINTER(wintypes.DWORD),  # pMaxAllowedDeltaTime : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('DHCPSAPI.dll')
DhcpV4FailoverGetSystemTime = Fiddle::Function.new(
  lib['DhcpV4FailoverGetSystemTime'],
  [
    Fiddle::TYPE_VOIDP,  # ServerIpAddress : LPWSTR optional
    Fiddle::TYPE_VOIDP,  # pTime : DWORD* out
    Fiddle::TYPE_VOIDP,  # pMaxAllowedDeltaTime : DWORD* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "dhcpsapi")]
extern "system" {
    fn DhcpV4FailoverGetSystemTime(
        ServerIpAddress: *mut u16,  // LPWSTR optional
        pTime: *mut u32,  // DWORD* out
        pMaxAllowedDeltaTime: *mut u32  // DWORD* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("DHCPSAPI.dll")]
public static extern uint DhcpV4FailoverGetSystemTime([MarshalAs(UnmanagedType.LPWStr)] string ServerIpAddress, out uint pTime, out uint pMaxAllowedDeltaTime);
"@
$api = Add-Type -MemberDefinition $sig -Name 'DHCPSAPI_DhcpV4FailoverGetSystemTime' -Namespace Win32 -PassThru
# $api::DhcpV4FailoverGetSystemTime(ServerIpAddress, pTime, pMaxAllowedDeltaTime)

#uselib "DHCPSAPI.dll"
#func global DhcpV4FailoverGetSystemTime "DhcpV4FailoverGetSystemTime" sptr, sptr, sptr
; DhcpV4FailoverGetSystemTime ServerIpAddress, varptr(pTime), varptr(pMaxAllowedDeltaTime)   ; 戻り値は stat
; ServerIpAddress : LPWSTR optional -> "sptr"
; pTime : DWORD* out -> "sptr"
; pMaxAllowedDeltaTime : DWORD* 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")
	procDhcpV4FailoverGetSystemTime = dhcpsapi.NewProc("DhcpV4FailoverGetSystemTime")
)

// ServerIpAddress (LPWSTR optional), pTime (DWORD* out), pMaxAllowedDeltaTime (DWORD* out)
r1, _, err := procDhcpV4FailoverGetSystemTime.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(ServerIpAddress))),
	uintptr(pTime),
	uintptr(pMaxAllowedDeltaTime),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function DhcpV4FailoverGetSystemTime(
  ServerIpAddress: PWideChar;   // LPWSTR optional
  pTime: Pointer;   // DWORD* out
  pMaxAllowedDeltaTime: Pointer   // DWORD* out
): DWORD; stdcall;
  external 'DHCPSAPI.dll' name 'DhcpV4FailoverGetSystemTime';

result := DllCall("DHCPSAPI\DhcpV4FailoverGetSystemTime"
    , "WStr", ServerIpAddress   ; LPWSTR optional
    , "Ptr", pTime   ; DWORD* out
    , "Ptr", pMaxAllowedDeltaTime   ; DWORD* out
    , "UInt")   ; return: DWORD

●DhcpV4FailoverGetSystemTime(ServerIpAddress, pTime, pMaxAllowedDeltaTime) = DLL("DHCPSAPI.dll", "dword DhcpV4FailoverGetSystemTime(char*, void*, void*)")
# 呼び出し: DhcpV4FailoverGetSystemTime(ServerIpAddress, pTime, pMaxAllowedDeltaTime)
# ServerIpAddress : LPWSTR optional -> "char*"
# pTime : DWORD* out -> "void*"
# pMaxAllowedDeltaTime : DWORD* 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 DhcpV4FailoverGetSystemTime(
    ServerIpAddress: [*c]const u16, // LPWSTR optional
    pTime: [*c]u32, // DWORD* out
    pMaxAllowedDeltaTime: [*c]u32 // DWORD* out
) callconv(std.os.windows.WINAPI) u32;

proc DhcpV4FailoverGetSystemTime(
    ServerIpAddress: WideCString,  # LPWSTR optional
    pTime: ptr uint32,  # DWORD* out
    pMaxAllowedDeltaTime: ptr uint32  # DWORD* out
): uint32 {.importc: "DhcpV4FailoverGetSystemTime", stdcall, dynlib: "DHCPSAPI.dll".}

pragma(lib, "dhcpsapi");
extern(Windows)
uint DhcpV4FailoverGetSystemTime(
    const(wchar)* ServerIpAddress,   // LPWSTR optional
    uint* pTime,   // DWORD* out
    uint* pMaxAllowedDeltaTime   // DWORD* out
);

ccall((:DhcpV4FailoverGetSystemTime, "DHCPSAPI.dll"), stdcall, UInt32,
      (Cwstring, Ptr{UInt32}, Ptr{UInt32}),
      ServerIpAddress, pTime, pMaxAllowedDeltaTime)
# ServerIpAddress : LPWSTR optional -> Cwstring
# pTime : DWORD* out -> Ptr{UInt32}
# pMaxAllowedDeltaTime : DWORD* 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 DhcpV4FailoverGetSystemTime(
    const uint16_t* ServerIpAddress,
    uint32_t* pTime,
    uint32_t* pMaxAllowedDeltaTime);
]]
local dhcpsapi = ffi.load("dhcpsapi")
-- dhcpsapi.DhcpV4FailoverGetSystemTime(ServerIpAddress, pTime, pMaxAllowedDeltaTime)
-- ServerIpAddress : LPWSTR optional
-- pTime : DWORD* out
-- pMaxAllowedDeltaTime : DWORD* 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 DhcpV4FailoverGetSystemTime = lib.func('__stdcall', 'DhcpV4FailoverGetSystemTime', 'uint32_t', ['str16', 'uint32_t *', 'uint32_t *']);
// DhcpV4FailoverGetSystemTime(ServerIpAddress, pTime, pMaxAllowedDeltaTime)
// ServerIpAddress : LPWSTR optional -> 'str16'
// pTime : DWORD* out -> 'uint32_t *'
// pMaxAllowedDeltaTime : DWORD* 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("DHCPSAPI.dll", {
  DhcpV4FailoverGetSystemTime: { parameters: ["buffer", "pointer", "pointer"], result: "u32" },
});
// lib.symbols.DhcpV4FailoverGetSystemTime(ServerIpAddress, pTime, pMaxAllowedDeltaTime)
// ServerIpAddress : LPWSTR optional -> "buffer"
// pTime : DWORD* out -> "pointer"
// pMaxAllowedDeltaTime : DWORD* 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 DhcpV4FailoverGetSystemTime(
    const uint16_t* ServerIpAddress,
    uint32_t* pTime,
    uint32_t* pMaxAllowedDeltaTime);
C, "DHCPSAPI.dll");
// $ffi->DhcpV4FailoverGetSystemTime(ServerIpAddress, pTime, pMaxAllowedDeltaTime);
// ServerIpAddress : LPWSTR optional
// pTime : DWORD* out
// pMaxAllowedDeltaTime : DWORD* 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 DhcpV4FailoverGetSystemTime(
        WString ServerIpAddress,   // LPWSTR optional
        IntByReference pTime,   // DWORD* out
        IntByReference pMaxAllowedDeltaTime   // DWORD* out
    );
}

@[Link("dhcpsapi")]
lib LibDHCPSAPI
  fun DhcpV4FailoverGetSystemTime = DhcpV4FailoverGetSystemTime(
    ServerIpAddress : UInt16*,   # LPWSTR optional
    pTime : UInt32*,   # DWORD* out
    pMaxAllowedDeltaTime : UInt32*   # DWORD* 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 DhcpV4FailoverGetSystemTimeNative = Uint32 Function(Pointer<Utf16>, Pointer<Uint32>, Pointer<Uint32>);
typedef DhcpV4FailoverGetSystemTimeDart = int Function(Pointer<Utf16>, Pointer<Uint32>, Pointer<Uint32>);
final DhcpV4FailoverGetSystemTime = DynamicLibrary.open('DHCPSAPI.dll')
    .lookupFunction<DhcpV4FailoverGetSystemTimeNative, DhcpV4FailoverGetSystemTimeDart>('DhcpV4FailoverGetSystemTime');
// ServerIpAddress : LPWSTR optional -> Pointer<Utf16>
// pTime : DWORD* out -> Pointer<Uint32>
// pMaxAllowedDeltaTime : DWORD* out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function DhcpV4FailoverGetSystemTime(
  ServerIpAddress: PWideChar;   // LPWSTR optional
  pTime: Pointer;   // DWORD* out
  pMaxAllowedDeltaTime: Pointer   // DWORD* out
): DWORD; stdcall;
  external 'DHCPSAPI.dll' name 'DhcpV4FailoverGetSystemTime';

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

foreign import stdcall safe "DhcpV4FailoverGetSystemTime"
  c_DhcpV4FailoverGetSystemTime :: CWString -> Ptr Word32 -> Ptr Word32 -> IO Word32
-- ServerIpAddress : LPWSTR optional -> CWString
-- pTime : DWORD* out -> Ptr Word32
-- pMaxAllowedDeltaTime : DWORD* 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。

open Ctypes
open Foreign

let dhcpv4failovergetsystemtime =
  foreign "DhcpV4FailoverGetSystemTime"
    ((ptr uint16_t) @-> (ptr uint32_t) @-> (ptr uint32_t) @-> returning uint32_t)
(* ServerIpAddress : LPWSTR optional -> (ptr uint16_t) *)
(* pTime : DWORD* out -> (ptr uint32_t) *)
(* pMaxAllowedDeltaTime : DWORD* 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 dhcpsapi (t "DHCPSAPI.dll"))
(cffi:use-foreign-library dhcpsapi)

(cffi:defcfun ("DhcpV4FailoverGetSystemTime" dhcp-v4-failover-get-system-time :convention :stdcall) :uint32
  (server-ip-address (:string :encoding :utf-16le))   ; LPWSTR optional
  (p-time :pointer)   ; DWORD* out
  (p-max-allowed-delta-time :pointer))   ; DWORD* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $DhcpV4FailoverGetSystemTime = Win32::API::More->new('DHCPSAPI',
    'DWORD DhcpV4FailoverGetSystemTime(LPCWSTR ServerIpAddress, LPVOID pTime, LPVOID pMaxAllowedDeltaTime)');
# my $ret = $DhcpV4FailoverGetSystemTime->Call($ServerIpAddress, $pTime, $pMaxAllowedDeltaTime);
# ServerIpAddress : LPWSTR optional -> LPCWSTR
# pTime : DWORD* out -> LPVOID
# pMaxAllowedDeltaTime : DWORD* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。