OpenINFEngineW

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

HRESULT OpenINFEngineW(
    LPCWSTR pszInfFilename,
    LPCWSTR pszInstallSection,
    DWORD dwFlags,
    void** phInf,
    void* pvReserved
);

<DllImport("ADVPACK.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function OpenINFEngineW(
    <MarshalAs(UnmanagedType.LPWStr)> pszInfFilename As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> pszInstallSection As String,   ' LPCWSTR
    dwFlags As UInteger,   ' DWORD
    phInf As IntPtr,   ' void** in/out
    pvReserved As IntPtr   ' void* in/out
) As Integer
End Function

' pszInfFilename : LPCWSTR
' pszInstallSection : LPCWSTR
' dwFlags : DWORD
' phInf : void** in/out
' pvReserved : void* in/out
Declare PtrSafe Function OpenINFEngineW Lib "advpack" ( _
    ByVal pszInfFilename As LongPtr, _
    ByVal pszInstallSection As LongPtr, _
    ByVal dwFlags As Long, _
    ByVal phInf As LongPtr, _
    ByVal pvReserved As LongPtr) As Long
' 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

OpenINFEngineW = ctypes.windll.advpack.OpenINFEngineW
OpenINFEngineW.restype = ctypes.c_int
OpenINFEngineW.argtypes = [
    wintypes.LPCWSTR,  # pszInfFilename : LPCWSTR
    wintypes.LPCWSTR,  # pszInstallSection : LPCWSTR
    wintypes.DWORD,  # dwFlags : DWORD
    ctypes.c_void_p,  # phInf : void** in/out
    ctypes.POINTER(None),  # pvReserved : void* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ADVPACK.dll')
OpenINFEngineW = Fiddle::Function.new(
  lib['OpenINFEngineW'],
  [
    Fiddle::TYPE_VOIDP,  # pszInfFilename : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pszInstallSection : LPCWSTR
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    Fiddle::TYPE_VOIDP,  # phInf : void** in/out
    Fiddle::TYPE_VOIDP,  # pvReserved : void* in/out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "advpack")]
extern "system" {
    fn OpenINFEngineW(
        pszInfFilename: *const u16,  // LPCWSTR
        pszInstallSection: *const u16,  // LPCWSTR
        dwFlags: u32,  // DWORD
        phInf: *mut *mut (),  // void** in/out
        pvReserved: *mut ()  // void* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ADVPACK.dll", CharSet = CharSet.Unicode)]
public static extern int OpenINFEngineW([MarshalAs(UnmanagedType.LPWStr)] string pszInfFilename, [MarshalAs(UnmanagedType.LPWStr)] string pszInstallSection, uint dwFlags, IntPtr phInf, IntPtr pvReserved);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVPACK_OpenINFEngineW' -Namespace Win32 -PassThru
# $api::OpenINFEngineW(pszInfFilename, pszInstallSection, dwFlags, phInf, pvReserved)

#uselib "ADVPACK.dll"
#func global OpenINFEngineW "OpenINFEngineW" wptr, wptr, wptr, wptr, wptr
; OpenINFEngineW pszInfFilename, pszInstallSection, dwFlags, phInf, pvReserved   ; 戻り値は stat
; pszInfFilename : LPCWSTR -> "wptr"
; pszInstallSection : LPCWSTR -> "wptr"
; dwFlags : DWORD -> "wptr"
; phInf : void** in/out -> "wptr"
; pvReserved : void* in/out -> "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 "ADVPACK.dll"
#cfunc global OpenINFEngineW "OpenINFEngineW" wstr, wstr, int, sptr, sptr
; res = OpenINFEngineW(pszInfFilename, pszInstallSection, dwFlags, phInf, pvReserved)
; pszInfFilename : LPCWSTR -> "wstr"
; pszInstallSection : LPCWSTR -> "wstr"
; dwFlags : DWORD -> "int"
; phInf : void** in/out -> "sptr"
; pvReserved : void* in/out -> "sptr"

; HRESULT OpenINFEngineW(LPCWSTR pszInfFilename, LPCWSTR pszInstallSection, DWORD dwFlags, void** phInf, void* pvReserved)
#uselib "ADVPACK.dll"
#cfunc global OpenINFEngineW "OpenINFEngineW" wstr, wstr, int, intptr, intptr
; res = OpenINFEngineW(pszInfFilename, pszInstallSection, dwFlags, phInf, pvReserved)
; pszInfFilename : LPCWSTR -> "wstr"
; pszInstallSection : LPCWSTR -> "wstr"
; dwFlags : DWORD -> "int"
; phInf : void** in/out -> "intptr"
; pvReserved : void* in/out -> "intptr"

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

var (
	advpack = windows.NewLazySystemDLL("ADVPACK.dll")
	procOpenINFEngineW = advpack.NewProc("OpenINFEngineW")
)

// pszInfFilename (LPCWSTR), pszInstallSection (LPCWSTR), dwFlags (DWORD), phInf (void** in/out), pvReserved (void* in/out)
r1, _, err := procOpenINFEngineW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszInfFilename))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszInstallSection))),
	uintptr(dwFlags),
	uintptr(phInf),
	uintptr(pvReserved),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function OpenINFEngineW(
  pszInfFilename: PWideChar;   // LPCWSTR
  pszInstallSection: PWideChar;   // LPCWSTR
  dwFlags: DWORD;   // DWORD
  phInf: Pointer;   // void** in/out
  pvReserved: Pointer   // void* in/out
): Integer; stdcall;
  external 'ADVPACK.dll' name 'OpenINFEngineW';

result := DllCall("ADVPACK\OpenINFEngineW"
    , "WStr", pszInfFilename   ; LPCWSTR
    , "WStr", pszInstallSection   ; LPCWSTR
    , "UInt", dwFlags   ; DWORD
    , "Ptr", phInf   ; void** in/out
    , "Ptr", pvReserved   ; void* in/out
    , "Int")   ; return: HRESULT

●OpenINFEngineW(pszInfFilename, pszInstallSection, dwFlags, phInf, pvReserved) = DLL("ADVPACK.dll", "int OpenINFEngineW(char*, char*, dword, void*, void*)")
# 呼び出し: OpenINFEngineW(pszInfFilename, pszInstallSection, dwFlags, phInf, pvReserved)
# pszInfFilename : LPCWSTR -> "char*"
# pszInstallSection : LPCWSTR -> "char*"
# dwFlags : DWORD -> "dword"
# phInf : void** in/out -> "void*"
# pvReserved : void* 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)。
# ※-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 "advpack" fn OpenINFEngineW(
    pszInfFilename: [*c]const u16, // LPCWSTR
    pszInstallSection: [*c]const u16, // LPCWSTR
    dwFlags: u32, // DWORD
    phInf: ?*anyopaque, // void** in/out
    pvReserved: ?*anyopaque // void* in/out
) callconv(std.os.windows.WINAPI) i32;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。

proc OpenINFEngineW(
    pszInfFilename: WideCString,  # LPCWSTR
    pszInstallSection: WideCString,  # LPCWSTR
    dwFlags: uint32,  # DWORD
    phInf: pointer,  # void** in/out
    pvReserved: pointer  # void* in/out
): int32 {.importc: "OpenINFEngineW", stdcall, dynlib: "ADVPACK.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "advpack");
extern(Windows)
int OpenINFEngineW(
    const(wchar)* pszInfFilename,   // LPCWSTR
    const(wchar)* pszInstallSection,   // LPCWSTR
    uint dwFlags,   // DWORD
    void** phInf,   // void** in/out
    void* pvReserved   // void* in/out
);

ccall((:OpenINFEngineW, "ADVPACK.dll"), stdcall, Int32,
      (Cwstring, Cwstring, UInt32, Ptr{Cvoid}, Ptr{Cvoid}),
      pszInfFilename, pszInstallSection, dwFlags, phInf, pvReserved)
# pszInfFilename : LPCWSTR -> Cwstring
# pszInstallSection : LPCWSTR -> Cwstring
# dwFlags : DWORD -> UInt32
# phInf : void** in/out -> Ptr{Cvoid}
# pvReserved : void* in/out -> Ptr{Cvoid}
# 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[[
int32_t OpenINFEngineW(
    const uint16_t* pszInfFilename,
    const uint16_t* pszInstallSection,
    uint32_t dwFlags,
    void** phInf,
    void* pvReserved);
]]
local advpack = ffi.load("advpack")
-- advpack.OpenINFEngineW(pszInfFilename, pszInstallSection, dwFlags, phInf, pvReserved)
-- pszInfFilename : LPCWSTR
-- pszInstallSection : LPCWSTR
-- dwFlags : DWORD
-- phInf : void** in/out
-- pvReserved : void* in/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。
-- 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('ADVPACK.dll');
const OpenINFEngineW = lib.func('__stdcall', 'OpenINFEngineW', 'int32_t', ['str16', 'str16', 'uint32_t', 'void *', 'void *']);
// OpenINFEngineW(pszInfFilename, pszInstallSection, dwFlags, phInf, pvReserved)
// pszInfFilename : LPCWSTR -> 'str16'
// pszInstallSection : LPCWSTR -> 'str16'
// dwFlags : DWORD -> 'uint32_t'
// phInf : void** in/out -> 'void *'
// pvReserved : void* in/out -> 'void *'
// 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("ADVPACK.dll", {
  OpenINFEngineW: { parameters: ["buffer", "buffer", "u32", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.OpenINFEngineW(pszInfFilename, pszInstallSection, dwFlags, phInf, pvReserved)
// pszInfFilename : LPCWSTR -> "buffer"
// pszInstallSection : LPCWSTR -> "buffer"
// dwFlags : DWORD -> "u32"
// phInf : void** in/out -> "pointer"
// pvReserved : void* in/out -> "pointer"
// 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
int32_t OpenINFEngineW(
    const uint16_t* pszInfFilename,
    const uint16_t* pszInstallSection,
    uint32_t dwFlags,
    void** phInf,
    void* pvReserved);
C, "ADVPACK.dll");
// $ffi->OpenINFEngineW(pszInfFilename, pszInstallSection, dwFlags, phInf, pvReserved);
// pszInfFilename : LPCWSTR
// pszInstallSection : LPCWSTR
// dwFlags : DWORD
// phInf : void** in/out
// pvReserved : void* in/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 Advpack extends StdCallLibrary {
    Advpack INSTANCE = Native.load("advpack", Advpack.class, W32APIOptions.UNICODE_OPTIONS);
    int OpenINFEngineW(
        WString pszInfFilename,   // LPCWSTR
        WString pszInstallSection,   // LPCWSTR
        int dwFlags,   // DWORD
        Pointer phInf,   // void** in/out
        Pointer pvReserved   // void* in/out
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("advpack")]
lib LibADVPACK
  fun OpenINFEngineW = OpenINFEngineW(
    pszInfFilename : UInt16*,   # LPCWSTR
    pszInstallSection : UInt16*,   # LPCWSTR
    dwFlags : UInt32,   # DWORD
    phInf : Void**,   # void** in/out
    pvReserved : Void*   # void* in/out
  ) : Int32
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 OpenINFEngineWNative = Int32 Function(Pointer<Utf16>, Pointer<Utf16>, Uint32, Pointer<Void>, Pointer<Void>);
typedef OpenINFEngineWDart = int Function(Pointer<Utf16>, Pointer<Utf16>, int, Pointer<Void>, Pointer<Void>);
final OpenINFEngineW = DynamicLibrary.open('ADVPACK.dll')
    .lookupFunction<OpenINFEngineWNative, OpenINFEngineWDart>('OpenINFEngineW');
// pszInfFilename : LPCWSTR -> Pointer<Utf16>
// pszInstallSection : LPCWSTR -> Pointer<Utf16>
// dwFlags : DWORD -> Uint32
// phInf : void** in/out -> Pointer<Void>
// pvReserved : void* in/out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function OpenINFEngineW(
  pszInfFilename: PWideChar;   // LPCWSTR
  pszInstallSection: PWideChar;   // LPCWSTR
  dwFlags: DWORD;   // DWORD
  phInf: Pointer;   // void** in/out
  pvReserved: Pointer   // void* in/out
): Integer; stdcall;
  external 'ADVPACK.dll' name 'OpenINFEngineW';

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

foreign import stdcall safe "OpenINFEngineW"
  c_OpenINFEngineW :: CWString -> CWString -> Word32 -> Ptr () -> Ptr () -> IO Int32
-- pszInfFilename : LPCWSTR -> CWString
-- pszInstallSection : LPCWSTR -> CWString
-- dwFlags : DWORD -> Word32
-- phInf : void** in/out -> Ptr ()
-- pvReserved : void* in/out -> Ptr ()
-- 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 openinfenginew =
  foreign "OpenINFEngineW"
    ((ptr uint16_t) @-> (ptr uint16_t) @-> uint32_t @-> (ptr void) @-> (ptr void) @-> returning int32_t)
(* pszInfFilename : LPCWSTR -> (ptr uint16_t) *)
(* pszInstallSection : LPCWSTR -> (ptr uint16_t) *)
(* dwFlags : DWORD -> uint32_t *)
(* phInf : void** in/out -> (ptr void) *)
(* pvReserved : void* in/out -> (ptr void) *)
(* 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 advpack (t "ADVPACK.dll"))
(cffi:use-foreign-library advpack)

(cffi:defcfun ("OpenINFEngineW" open-infengine-w :convention :stdcall) :int32
  (psz-inf-filename (:string :encoding :utf-16le))   ; LPCWSTR
  (psz-install-section (:string :encoding :utf-16le))   ; LPCWSTR
  (dw-flags :uint32)   ; DWORD
  (ph-inf :pointer)   ; void** in/out
  (pv-reserved :pointer))   ; void* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $OpenINFEngineW = Win32::API::More->new('ADVPACK',
    'int OpenINFEngineW(LPCWSTR pszInfFilename, LPCWSTR pszInstallSection, DWORD dwFlags, LPVOID phInf, LPVOID pvReserved)');
# my $ret = $OpenINFEngineW->Call($pszInfFilename, $pszInstallSection, $dwFlags, $phInf, $pvReserved);
# pszInfFilename : LPCWSTR -> LPCWSTR
# pszInstallSection : LPCWSTR -> LPCWSTR
# dwFlags : DWORD -> DWORD
# phInf : void** in/out -> LPVOID
# pvReserved : void* in/out -> LPVOID
# 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。