OpenEventLogW

// ADVAPI32.dll  (Unicode / -W)
#include <windows.h>

HANDLE OpenEventLogW(
    LPCWSTR lpUNCServerName,   // optional
    LPCWSTR lpSourceName
);

<DllImport("ADVAPI32.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function OpenEventLogW(
    <MarshalAs(UnmanagedType.LPWStr)> lpUNCServerName As String,   ' LPCWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> lpSourceName As String   ' LPCWSTR
) As IntPtr
End Function

' lpUNCServerName : LPCWSTR optional
' lpSourceName : LPCWSTR
Declare PtrSafe Function OpenEventLogW Lib "advapi32" ( _
    ByVal lpUNCServerName As LongPtr, _
    ByVal lpSourceName As LongPtr) As LongPtr
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

OpenEventLogW = ctypes.windll.advapi32.OpenEventLogW
OpenEventLogW.restype = ctypes.c_void_p
OpenEventLogW.argtypes = [
    wintypes.LPCWSTR,  # lpUNCServerName : LPCWSTR optional
    wintypes.LPCWSTR,  # lpSourceName : LPCWSTR
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ADVAPI32.dll')
OpenEventLogW = Fiddle::Function.new(
  lib['OpenEventLogW'],
  [
    Fiddle::TYPE_VOIDP,  # lpUNCServerName : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # lpSourceName : LPCWSTR
  ],
  Fiddle::TYPE_VOIDP)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "advapi32")]
extern "system" {
    fn OpenEventLogW(
        lpUNCServerName: *const u16,  // LPCWSTR optional
        lpSourceName: *const u16  // LPCWSTR
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ADVAPI32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern IntPtr OpenEventLogW([MarshalAs(UnmanagedType.LPWStr)] string lpUNCServerName, [MarshalAs(UnmanagedType.LPWStr)] string lpSourceName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVAPI32_OpenEventLogW' -Namespace Win32 -PassThru
# $api::OpenEventLogW(lpUNCServerName, lpSourceName)

#uselib "ADVAPI32.dll"
#func global OpenEventLogW "OpenEventLogW" wptr, wptr
; OpenEventLogW lpUNCServerName, lpSourceName   ; 戻り値は stat
; lpUNCServerName : LPCWSTR optional -> "wptr"
; lpSourceName : LPCWSTR -> "wptr"
; ※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 "ADVAPI32.dll"
#cfunc global OpenEventLogW "OpenEventLogW" wstr, wstr
; res = OpenEventLogW(lpUNCServerName, lpSourceName)
; lpUNCServerName : LPCWSTR optional -> "wstr"
; lpSourceName : LPCWSTR -> "wstr"

; HANDLE OpenEventLogW(LPCWSTR lpUNCServerName, LPCWSTR lpSourceName)
#uselib "ADVAPI32.dll"
#cfunc global OpenEventLogW "OpenEventLogW" wstr, wstr
; res = OpenEventLogW(lpUNCServerName, lpSourceName)
; lpUNCServerName : LPCWSTR optional -> "wstr"
; lpSourceName : LPCWSTR -> "wstr"

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

var (
	advapi32 = windows.NewLazySystemDLL("ADVAPI32.dll")
	procOpenEventLogW = advapi32.NewProc("OpenEventLogW")
)

// lpUNCServerName (LPCWSTR optional), lpSourceName (LPCWSTR)
r1, _, err := procOpenEventLogW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpUNCServerName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpSourceName))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HANDLE

function OpenEventLogW(
  lpUNCServerName: PWideChar;   // LPCWSTR optional
  lpSourceName: PWideChar   // LPCWSTR
): THandle; stdcall;
  external 'ADVAPI32.dll' name 'OpenEventLogW';

result := DllCall("ADVAPI32\OpenEventLogW"
    , "WStr", lpUNCServerName   ; LPCWSTR optional
    , "WStr", lpSourceName   ; LPCWSTR
    , "Ptr")   ; return: HANDLE

●OpenEventLogW(lpUNCServerName, lpSourceName) = DLL("ADVAPI32.dll", "void* OpenEventLogW(char*, char*)")
# 呼び出し: OpenEventLogW(lpUNCServerName, lpSourceName)
# lpUNCServerName : LPCWSTR optional -> "char*"
# lpSourceName : LPCWSTR -> "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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。

const std = @import("std");

extern "advapi32" fn OpenEventLogW(
    lpUNCServerName: [*c]const u16, // LPCWSTR optional
    lpSourceName: [*c]const u16 // LPCWSTR
) callconv(std.os.windows.WINAPI) ?*anyopaque;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。

proc OpenEventLogW(
    lpUNCServerName: WideCString,  # LPCWSTR optional
    lpSourceName: WideCString  # LPCWSTR
): pointer {.importc: "OpenEventLogW", stdcall, dynlib: "ADVAPI32.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "advapi32");
extern(Windows)
void* OpenEventLogW(
    const(wchar)* lpUNCServerName,   // LPCWSTR optional
    const(wchar)* lpSourceName   // LPCWSTR
);

ccall((:OpenEventLogW, "ADVAPI32.dll"), stdcall, Ptr{Cvoid},
      (Cwstring, Cwstring),
      lpUNCServerName, lpSourceName)
# lpUNCServerName : LPCWSTR optional -> Cwstring
# lpSourceName : LPCWSTR -> Cwstring
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
# Unicode(-W): Cwstring には transcode(UInt16, "...") 等で UTF-16 を渡す。

local ffi = require("ffi")
ffi.cdef[[
void* OpenEventLogW(
    const uint16_t* lpUNCServerName,
    const uint16_t* lpSourceName);
]]
local advapi32 = ffi.load("advapi32")
-- advapi32.OpenEventLogW(lpUNCServerName, lpSourceName)
-- lpUNCServerName : LPCWSTR optional
-- lpSourceName : LPCWSTR
-- 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。
-- Unicode(-W): uint16_t* には UTF-16LE のバッファ(ffi.new("uint16_t[?]", ...))を渡す。

const koffi = require('koffi');
const lib = koffi.load('ADVAPI32.dll');
const OpenEventLogW = lib.func('__stdcall', 'OpenEventLogW', 'void *', ['str16', 'str16']);
// OpenEventLogW(lpUNCServerName, lpSourceName)
// lpUNCServerName : LPCWSTR optional -> 'str16'
// lpSourceName : LPCWSTR -> '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("ADVAPI32.dll", {
  OpenEventLogW: { parameters: ["buffer", "buffer"], result: "pointer" },
});
// lib.symbols.OpenEventLogW(lpUNCServerName, lpSourceName)
// lpUNCServerName : LPCWSTR optional -> "buffer"
// lpSourceName : LPCWSTR -> "buffer"
// 文字列は "buffer"。Unicode(-W) は new TextEncoder() ではなく UTF-16LE のバイト列(末尾に \x00\x00)を Uint8Array で渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
void* OpenEventLogW(
    const uint16_t* lpUNCServerName,
    const uint16_t* lpSourceName);
C, "ADVAPI32.dll");
// $ffi->OpenEventLogW(lpUNCServerName, lpSourceName);
// lpUNCServerName : LPCWSTR optional
// lpSourceName : LPCWSTR
// 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 Advapi32 extends StdCallLibrary {
    Advapi32 INSTANCE = Native.load("advapi32", Advapi32.class, W32APIOptions.UNICODE_OPTIONS);
    Pointer OpenEventLogW(
        WString lpUNCServerName,   // LPCWSTR optional
        WString lpSourceName   // LPCWSTR
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("advapi32")]
lib LibADVAPI32
  fun OpenEventLogW = OpenEventLogW(
    lpUNCServerName : UInt16*,   # LPCWSTR optional
    lpSourceName : UInt16*   # LPCWSTR
  ) : Void*
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 OpenEventLogWNative = Pointer<Void> Function(Pointer<Utf16>, Pointer<Utf16>);
typedef OpenEventLogWDart = Pointer<Void> Function(Pointer<Utf16>, Pointer<Utf16>);
final OpenEventLogW = DynamicLibrary.open('ADVAPI32.dll')
    .lookupFunction<OpenEventLogWNative, OpenEventLogWDart>('OpenEventLogW');
// lpUNCServerName : LPCWSTR optional -> Pointer<Utf16>
// lpSourceName : LPCWSTR -> Pointer<Utf16>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function OpenEventLogW(
  lpUNCServerName: PWideChar;   // LPCWSTR optional
  lpSourceName: PWideChar   // LPCWSTR
): THandle; stdcall;
  external 'ADVAPI32.dll' name 'OpenEventLogW';

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

foreign import stdcall safe "OpenEventLogW"
  c_OpenEventLogW :: CWString -> CWString -> IO (Ptr ())
-- lpUNCServerName : LPCWSTR optional -> CWString
-- lpSourceName : LPCWSTR -> 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 openeventlogw =
  foreign "OpenEventLogW"
    ((ptr uint16_t) @-> (ptr uint16_t) @-> returning (ptr void))
(* lpUNCServerName : LPCWSTR optional -> (ptr uint16_t) *)
(* lpSourceName : LPCWSTR -> (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 advapi32 (t "ADVAPI32.dll"))
(cffi:use-foreign-library advapi32)

(cffi:defcfun ("OpenEventLogW" open-event-log-w :convention :stdcall) :pointer
  (lp-uncserver-name (:string :encoding :utf-16le))   ; LPCWSTR optional
  (lp-source-name (:string :encoding :utf-16le)))   ; LPCWSTR
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $OpenEventLogW = Win32::API::More->new('ADVAPI32',
    'HANDLE OpenEventLogW(LPCWSTR lpUNCServerName, LPCWSTR lpSourceName)');
# my $ret = $OpenEventLogW->Call($lpUNCServerName, $lpSourceName);
# lpUNCServerName : LPCWSTR optional -> LPCWSTR
# lpSourceName : LPCWSTR -> LPCWSTR
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。
# Unicode(-W): LPCWSTR/LPWSTR は Win32::API が UTF-16 変換を行う。