MsiGetProductInfoFromScriptW

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

DWORD MsiGetProductInfoFromScriptW(
    LPCWSTR szScriptFile,
    LPWSTR lpProductBuf39,   // optional
    WORD* plgidLanguage,   // optional
    DWORD* pdwVersion,   // optional
    LPWSTR lpNameBuf,   // optional
    DWORD* pcchNameBuf,   // optional
    LPWSTR lpPackageBuf,   // optional
    DWORD* pcchPackageBuf   // optional
);

<DllImport("msi.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function MsiGetProductInfoFromScriptW(
    <MarshalAs(UnmanagedType.LPWStr)> szScriptFile As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> lpProductBuf39 As System.Text.StringBuilder,   ' LPWSTR optional, out
    plgidLanguage As IntPtr,   ' WORD* optional, out
    pdwVersion As IntPtr,   ' DWORD* optional, out
    <MarshalAs(UnmanagedType.LPWStr)> lpNameBuf As System.Text.StringBuilder,   ' LPWSTR optional, out
    pcchNameBuf As IntPtr,   ' DWORD* optional, in/out
    <MarshalAs(UnmanagedType.LPWStr)> lpPackageBuf As System.Text.StringBuilder,   ' LPWSTR optional, out
    pcchPackageBuf As IntPtr   ' DWORD* optional, in/out
) As UInteger
End Function

' szScriptFile : LPCWSTR
' lpProductBuf39 : LPWSTR optional, out
' plgidLanguage : WORD* optional, out
' pdwVersion : DWORD* optional, out
' lpNameBuf : LPWSTR optional, out
' pcchNameBuf : DWORD* optional, in/out
' lpPackageBuf : LPWSTR optional, out
' pcchPackageBuf : DWORD* optional, in/out
Declare PtrSafe Function MsiGetProductInfoFromScriptW Lib "msi" ( _
    ByVal szScriptFile As LongPtr, _
    ByVal lpProductBuf39 As LongPtr, _
    ByVal plgidLanguage As LongPtr, _
    ByVal pdwVersion As LongPtr, _
    ByVal lpNameBuf As LongPtr, _
    ByVal pcchNameBuf As LongPtr, _
    ByVal lpPackageBuf As LongPtr, _
    ByVal pcchPackageBuf 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

MsiGetProductInfoFromScriptW = ctypes.windll.msi.MsiGetProductInfoFromScriptW
MsiGetProductInfoFromScriptW.restype = wintypes.DWORD
MsiGetProductInfoFromScriptW.argtypes = [
    wintypes.LPCWSTR,  # szScriptFile : LPCWSTR
    wintypes.LPWSTR,  # lpProductBuf39 : LPWSTR optional, out
    ctypes.POINTER(ctypes.c_ushort),  # plgidLanguage : WORD* optional, out
    ctypes.POINTER(wintypes.DWORD),  # pdwVersion : DWORD* optional, out
    wintypes.LPWSTR,  # lpNameBuf : LPWSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcchNameBuf : DWORD* optional, in/out
    wintypes.LPWSTR,  # lpPackageBuf : LPWSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcchPackageBuf : DWORD* optional, in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msi.dll')
MsiGetProductInfoFromScriptW = Fiddle::Function.new(
  lib['MsiGetProductInfoFromScriptW'],
  [
    Fiddle::TYPE_VOIDP,  # szScriptFile : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpProductBuf39 : LPWSTR optional, out
    Fiddle::TYPE_VOIDP,  # plgidLanguage : WORD* optional, out
    Fiddle::TYPE_VOIDP,  # pdwVersion : DWORD* optional, out
    Fiddle::TYPE_VOIDP,  # lpNameBuf : LPWSTR optional, out
    Fiddle::TYPE_VOIDP,  # pcchNameBuf : DWORD* optional, in/out
    Fiddle::TYPE_VOIDP,  # lpPackageBuf : LPWSTR optional, out
    Fiddle::TYPE_VOIDP,  # pcchPackageBuf : DWORD* optional, in/out
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "msi")]
extern "system" {
    fn MsiGetProductInfoFromScriptW(
        szScriptFile: *const u16,  // LPCWSTR
        lpProductBuf39: *mut u16,  // LPWSTR optional, out
        plgidLanguage: *mut u16,  // WORD* optional, out
        pdwVersion: *mut u32,  // DWORD* optional, out
        lpNameBuf: *mut u16,  // LPWSTR optional, out
        pcchNameBuf: *mut u32,  // DWORD* optional, in/out
        lpPackageBuf: *mut u16,  // LPWSTR optional, out
        pcchPackageBuf: *mut u32  // DWORD* optional, in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("msi.dll", CharSet = CharSet.Unicode)]
public static extern uint MsiGetProductInfoFromScriptW([MarshalAs(UnmanagedType.LPWStr)] string szScriptFile, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder lpProductBuf39, IntPtr plgidLanguage, IntPtr pdwVersion, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder lpNameBuf, IntPtr pcchNameBuf, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder lpPackageBuf, IntPtr pcchPackageBuf);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msi_MsiGetProductInfoFromScriptW' -Namespace Win32 -PassThru
# $api::MsiGetProductInfoFromScriptW(szScriptFile, lpProductBuf39, plgidLanguage, pdwVersion, lpNameBuf, pcchNameBuf, lpPackageBuf, pcchPackageBuf)

#uselib "msi.dll"
#func global MsiGetProductInfoFromScriptW "MsiGetProductInfoFromScriptW" wptr, wptr, wptr, wptr, wptr, wptr, wptr, wptr
; MsiGetProductInfoFromScriptW szScriptFile, varptr(lpProductBuf39), varptr(plgidLanguage), varptr(pdwVersion), varptr(lpNameBuf), varptr(pcchNameBuf), varptr(lpPackageBuf), varptr(pcchPackageBuf)   ; 戻り値は stat
; szScriptFile : LPCWSTR -> "wptr"
; lpProductBuf39 : LPWSTR optional, out -> "wptr"
; plgidLanguage : WORD* optional, out -> "wptr"
; pdwVersion : DWORD* optional, out -> "wptr"
; lpNameBuf : LPWSTR optional, out -> "wptr"
; pcchNameBuf : DWORD* optional, in/out -> "wptr"
; lpPackageBuf : LPWSTR optional, out -> "wptr"
; pcchPackageBuf : DWORD* optional, 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。

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

var (
	msi = windows.NewLazySystemDLL("msi.dll")
	procMsiGetProductInfoFromScriptW = msi.NewProc("MsiGetProductInfoFromScriptW")
)

// szScriptFile (LPCWSTR), lpProductBuf39 (LPWSTR optional, out), plgidLanguage (WORD* optional, out), pdwVersion (DWORD* optional, out), lpNameBuf (LPWSTR optional, out), pcchNameBuf (DWORD* optional, in/out), lpPackageBuf (LPWSTR optional, out), pcchPackageBuf (DWORD* optional, in/out)
r1, _, err := procMsiGetProductInfoFromScriptW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(szScriptFile))),
	uintptr(lpProductBuf39),
	uintptr(plgidLanguage),
	uintptr(pdwVersion),
	uintptr(lpNameBuf),
	uintptr(pcchNameBuf),
	uintptr(lpPackageBuf),
	uintptr(pcchPackageBuf),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function MsiGetProductInfoFromScriptW(
  szScriptFile: PWideChar;   // LPCWSTR
  lpProductBuf39: PWideChar;   // LPWSTR optional, out
  plgidLanguage: Pointer;   // WORD* optional, out
  pdwVersion: Pointer;   // DWORD* optional, out
  lpNameBuf: PWideChar;   // LPWSTR optional, out
  pcchNameBuf: Pointer;   // DWORD* optional, in/out
  lpPackageBuf: PWideChar;   // LPWSTR optional, out
  pcchPackageBuf: Pointer   // DWORD* optional, in/out
): DWORD; stdcall;
  external 'msi.dll' name 'MsiGetProductInfoFromScriptW';

result := DllCall("msi\MsiGetProductInfoFromScriptW"
    , "WStr", szScriptFile   ; LPCWSTR
    , "Ptr", lpProductBuf39   ; LPWSTR optional, out
    , "Ptr", plgidLanguage   ; WORD* optional, out
    , "Ptr", pdwVersion   ; DWORD* optional, out
    , "Ptr", lpNameBuf   ; LPWSTR optional, out
    , "Ptr", pcchNameBuf   ; DWORD* optional, in/out
    , "Ptr", lpPackageBuf   ; LPWSTR optional, out
    , "Ptr", pcchPackageBuf   ; DWORD* optional, in/out
    , "UInt")   ; return: DWORD

●MsiGetProductInfoFromScriptW(szScriptFile, lpProductBuf39, plgidLanguage, pdwVersion, lpNameBuf, pcchNameBuf, lpPackageBuf, pcchPackageBuf) = DLL("msi.dll", "dword MsiGetProductInfoFromScriptW(char*, char*, void*, void*, char*, void*, char*, void*)")
# 呼び出し: MsiGetProductInfoFromScriptW(szScriptFile, lpProductBuf39, plgidLanguage, pdwVersion, lpNameBuf, pcchNameBuf, lpPackageBuf, pcchPackageBuf)
# szScriptFile : LPCWSTR -> "char*"
# lpProductBuf39 : LPWSTR optional, out -> "char*"
# plgidLanguage : WORD* optional, out -> "void*"
# pdwVersion : DWORD* optional, out -> "void*"
# lpNameBuf : LPWSTR optional, out -> "char*"
# pcchNameBuf : DWORD* optional, in/out -> "void*"
# lpPackageBuf : LPWSTR optional, out -> "char*"
# pcchPackageBuf : DWORD* optional, 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 "msi" fn MsiGetProductInfoFromScriptW(
    szScriptFile: [*c]const u16, // LPCWSTR
    lpProductBuf39: [*c]u16, // LPWSTR optional, out
    plgidLanguage: [*c]u16, // WORD* optional, out
    pdwVersion: [*c]u32, // DWORD* optional, out
    lpNameBuf: [*c]u16, // LPWSTR optional, out
    pcchNameBuf: [*c]u32, // DWORD* optional, in/out
    lpPackageBuf: [*c]u16, // LPWSTR optional, out
    pcchPackageBuf: [*c]u32 // DWORD* optional, in/out
) callconv(std.os.windows.WINAPI) u32;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。

proc MsiGetProductInfoFromScriptW(
    szScriptFile: WideCString,  # LPCWSTR
    lpProductBuf39: ptr uint16,  # LPWSTR optional, out
    plgidLanguage: ptr uint16,  # WORD* optional, out
    pdwVersion: ptr uint32,  # DWORD* optional, out
    lpNameBuf: ptr uint16,  # LPWSTR optional, out
    pcchNameBuf: ptr uint32,  # DWORD* optional, in/out
    lpPackageBuf: ptr uint16,  # LPWSTR optional, out
    pcchPackageBuf: ptr uint32  # DWORD* optional, in/out
): uint32 {.importc: "MsiGetProductInfoFromScriptW", stdcall, dynlib: "msi.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "msi");
extern(Windows)
uint MsiGetProductInfoFromScriptW(
    const(wchar)* szScriptFile,   // LPCWSTR
    wchar* lpProductBuf39,   // LPWSTR optional, out
    ushort* plgidLanguage,   // WORD* optional, out
    uint* pdwVersion,   // DWORD* optional, out
    wchar* lpNameBuf,   // LPWSTR optional, out
    uint* pcchNameBuf,   // DWORD* optional, in/out
    wchar* lpPackageBuf,   // LPWSTR optional, out
    uint* pcchPackageBuf   // DWORD* optional, in/out
);

ccall((:MsiGetProductInfoFromScriptW, "msi.dll"), stdcall, UInt32,
      (Cwstring, Ptr{UInt16}, Ptr{UInt16}, Ptr{UInt32}, Ptr{UInt16}, Ptr{UInt32}, Ptr{UInt16}, Ptr{UInt32}),
      szScriptFile, lpProductBuf39, plgidLanguage, pdwVersion, lpNameBuf, pcchNameBuf, lpPackageBuf, pcchPackageBuf)
# szScriptFile : LPCWSTR -> Cwstring
# lpProductBuf39 : LPWSTR optional, out -> Ptr{UInt16}
# plgidLanguage : WORD* optional, out -> Ptr{UInt16}
# pdwVersion : DWORD* optional, out -> Ptr{UInt32}
# lpNameBuf : LPWSTR optional, out -> Ptr{UInt16}
# pcchNameBuf : DWORD* optional, in/out -> Ptr{UInt32}
# lpPackageBuf : LPWSTR optional, out -> Ptr{UInt16}
# pcchPackageBuf : DWORD* optional, in/out -> Ptr{UInt32}
# 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[[
uint32_t MsiGetProductInfoFromScriptW(
    const uint16_t* szScriptFile,
    uint16_t* lpProductBuf39,
    uint16_t* plgidLanguage,
    uint32_t* pdwVersion,
    uint16_t* lpNameBuf,
    uint32_t* pcchNameBuf,
    uint16_t* lpPackageBuf,
    uint32_t* pcchPackageBuf);
]]
local msi = ffi.load("msi")
-- msi.MsiGetProductInfoFromScriptW(szScriptFile, lpProductBuf39, plgidLanguage, pdwVersion, lpNameBuf, pcchNameBuf, lpPackageBuf, pcchPackageBuf)
-- szScriptFile : LPCWSTR
-- lpProductBuf39 : LPWSTR optional, out
-- plgidLanguage : WORD* optional, out
-- pdwVersion : DWORD* optional, out
-- lpNameBuf : LPWSTR optional, out
-- pcchNameBuf : DWORD* optional, in/out
-- lpPackageBuf : LPWSTR optional, out
-- pcchPackageBuf : DWORD* optional, 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('msi.dll');
const MsiGetProductInfoFromScriptW = lib.func('__stdcall', 'MsiGetProductInfoFromScriptW', 'uint32_t', ['str16', 'uint16_t *', 'uint16_t *', 'uint32_t *', 'uint16_t *', 'uint32_t *', 'uint16_t *', 'uint32_t *']);
// MsiGetProductInfoFromScriptW(szScriptFile, lpProductBuf39, plgidLanguage, pdwVersion, lpNameBuf, pcchNameBuf, lpPackageBuf, pcchPackageBuf)
// szScriptFile : LPCWSTR -> 'str16'
// lpProductBuf39 : LPWSTR optional, out -> 'uint16_t *'
// plgidLanguage : WORD* optional, out -> 'uint16_t *'
// pdwVersion : DWORD* optional, out -> 'uint32_t *'
// lpNameBuf : LPWSTR optional, out -> 'uint16_t *'
// pcchNameBuf : DWORD* optional, in/out -> 'uint32_t *'
// lpPackageBuf : LPWSTR optional, out -> 'uint16_t *'
// pcchPackageBuf : DWORD* optional, in/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("msi.dll", {
  MsiGetProductInfoFromScriptW: { parameters: ["buffer", "buffer", "pointer", "pointer", "buffer", "pointer", "buffer", "pointer"], result: "u32" },
});
// lib.symbols.MsiGetProductInfoFromScriptW(szScriptFile, lpProductBuf39, plgidLanguage, pdwVersion, lpNameBuf, pcchNameBuf, lpPackageBuf, pcchPackageBuf)
// szScriptFile : LPCWSTR -> "buffer"
// lpProductBuf39 : LPWSTR optional, out -> "buffer"
// plgidLanguage : WORD* optional, out -> "pointer"
// pdwVersion : DWORD* optional, out -> "pointer"
// lpNameBuf : LPWSTR optional, out -> "buffer"
// pcchNameBuf : DWORD* optional, in/out -> "pointer"
// lpPackageBuf : LPWSTR optional, out -> "buffer"
// pcchPackageBuf : DWORD* optional, 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
uint32_t MsiGetProductInfoFromScriptW(
    const uint16_t* szScriptFile,
    uint16_t* lpProductBuf39,
    uint16_t* plgidLanguage,
    uint32_t* pdwVersion,
    uint16_t* lpNameBuf,
    uint32_t* pcchNameBuf,
    uint16_t* lpPackageBuf,
    uint32_t* pcchPackageBuf);
C, "msi.dll");
// $ffi->MsiGetProductInfoFromScriptW(szScriptFile, lpProductBuf39, plgidLanguage, pdwVersion, lpNameBuf, pcchNameBuf, lpPackageBuf, pcchPackageBuf);
// szScriptFile : LPCWSTR
// lpProductBuf39 : LPWSTR optional, out
// plgidLanguage : WORD* optional, out
// pdwVersion : DWORD* optional, out
// lpNameBuf : LPWSTR optional, out
// pcchNameBuf : DWORD* optional, in/out
// lpPackageBuf : LPWSTR optional, out
// pcchPackageBuf : DWORD* optional, 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 Msi extends StdCallLibrary {
    Msi INSTANCE = Native.load("msi", Msi.class, W32APIOptions.UNICODE_OPTIONS);
    int MsiGetProductInfoFromScriptW(
        WString szScriptFile,   // LPCWSTR
        char[] lpProductBuf39,   // LPWSTR optional, out
        ShortByReference plgidLanguage,   // WORD* optional, out
        IntByReference pdwVersion,   // DWORD* optional, out
        char[] lpNameBuf,   // LPWSTR optional, out
        IntByReference pcchNameBuf,   // DWORD* optional, in/out
        char[] lpPackageBuf,   // LPWSTR optional, out
        IntByReference pcchPackageBuf   // DWORD* optional, in/out
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("msi")]
lib Libmsi
  fun MsiGetProductInfoFromScriptW = MsiGetProductInfoFromScriptW(
    szScriptFile : UInt16*,   # LPCWSTR
    lpProductBuf39 : UInt16*,   # LPWSTR optional, out
    plgidLanguage : UInt16*,   # WORD* optional, out
    pdwVersion : UInt32*,   # DWORD* optional, out
    lpNameBuf : UInt16*,   # LPWSTR optional, out
    pcchNameBuf : UInt32*,   # DWORD* optional, in/out
    lpPackageBuf : UInt16*,   # LPWSTR optional, out
    pcchPackageBuf : UInt32*   # DWORD* optional, in/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 MsiGetProductInfoFromScriptWNative = Uint32 Function(Pointer<Utf16>, Pointer<Utf16>, Pointer<Uint16>, Pointer<Uint32>, Pointer<Utf16>, Pointer<Uint32>, Pointer<Utf16>, Pointer<Uint32>);
typedef MsiGetProductInfoFromScriptWDart = int Function(Pointer<Utf16>, Pointer<Utf16>, Pointer<Uint16>, Pointer<Uint32>, Pointer<Utf16>, Pointer<Uint32>, Pointer<Utf16>, Pointer<Uint32>);
final MsiGetProductInfoFromScriptW = DynamicLibrary.open('msi.dll')
    .lookupFunction<MsiGetProductInfoFromScriptWNative, MsiGetProductInfoFromScriptWDart>('MsiGetProductInfoFromScriptW');
// szScriptFile : LPCWSTR -> Pointer<Utf16>
// lpProductBuf39 : LPWSTR optional, out -> Pointer<Utf16>
// plgidLanguage : WORD* optional, out -> Pointer<Uint16>
// pdwVersion : DWORD* optional, out -> Pointer<Uint32>
// lpNameBuf : LPWSTR optional, out -> Pointer<Utf16>
// pcchNameBuf : DWORD* optional, in/out -> Pointer<Uint32>
// lpPackageBuf : LPWSTR optional, out -> Pointer<Utf16>
// pcchPackageBuf : DWORD* optional, in/out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function MsiGetProductInfoFromScriptW(
  szScriptFile: PWideChar;   // LPCWSTR
  lpProductBuf39: PWideChar;   // LPWSTR optional, out
  plgidLanguage: Pointer;   // WORD* optional, out
  pdwVersion: Pointer;   // DWORD* optional, out
  lpNameBuf: PWideChar;   // LPWSTR optional, out
  pcchNameBuf: Pointer;   // DWORD* optional, in/out
  lpPackageBuf: PWideChar;   // LPWSTR optional, out
  pcchPackageBuf: Pointer   // DWORD* optional, in/out
): DWORD; stdcall;
  external 'msi.dll' name 'MsiGetProductInfoFromScriptW';

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

foreign import stdcall safe "MsiGetProductInfoFromScriptW"
  c_MsiGetProductInfoFromScriptW :: CWString -> CWString -> Ptr Word16 -> Ptr Word32 -> CWString -> Ptr Word32 -> CWString -> Ptr Word32 -> IO Word32
-- szScriptFile : LPCWSTR -> CWString
-- lpProductBuf39 : LPWSTR optional, out -> CWString
-- plgidLanguage : WORD* optional, out -> Ptr Word16
-- pdwVersion : DWORD* optional, out -> Ptr Word32
-- lpNameBuf : LPWSTR optional, out -> CWString
-- pcchNameBuf : DWORD* optional, in/out -> Ptr Word32
-- lpPackageBuf : LPWSTR optional, out -> CWString
-- pcchPackageBuf : DWORD* optional, in/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 msigetproductinfofromscriptw =
  foreign "MsiGetProductInfoFromScriptW"
    ((ptr uint16_t) @-> (ptr uint16_t) @-> (ptr uint16_t) @-> (ptr uint32_t) @-> (ptr uint16_t) @-> (ptr uint32_t) @-> (ptr uint16_t) @-> (ptr uint32_t) @-> returning uint32_t)
(* szScriptFile : LPCWSTR -> (ptr uint16_t) *)
(* lpProductBuf39 : LPWSTR optional, out -> (ptr uint16_t) *)
(* plgidLanguage : WORD* optional, out -> (ptr uint16_t) *)
(* pdwVersion : DWORD* optional, out -> (ptr uint32_t) *)
(* lpNameBuf : LPWSTR optional, out -> (ptr uint16_t) *)
(* pcchNameBuf : DWORD* optional, in/out -> (ptr uint32_t) *)
(* lpPackageBuf : LPWSTR optional, out -> (ptr uint16_t) *)
(* pcchPackageBuf : DWORD* optional, in/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 msi (t "msi.dll"))
(cffi:use-foreign-library msi)

(cffi:defcfun ("MsiGetProductInfoFromScriptW" msi-get-product-info-from-script-w :convention :stdcall) :uint32
  (sz-script-file (:string :encoding :utf-16le))   ; LPCWSTR
  (lp-product-buf39 :pointer)   ; LPWSTR optional, out
  (plgid-language :pointer)   ; WORD* optional, out
  (pdw-version :pointer)   ; DWORD* optional, out
  (lp-name-buf :pointer)   ; LPWSTR optional, out
  (pcch-name-buf :pointer)   ; DWORD* optional, in/out
  (lp-package-buf :pointer)   ; LPWSTR optional, out
  (pcch-package-buf :pointer))   ; DWORD* optional, in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $MsiGetProductInfoFromScriptW = Win32::API::More->new('msi',
    'DWORD MsiGetProductInfoFromScriptW(LPCWSTR szScriptFile, LPWSTR lpProductBuf39, LPVOID plgidLanguage, LPVOID pdwVersion, LPWSTR lpNameBuf, LPVOID pcchNameBuf, LPWSTR lpPackageBuf, LPVOID pcchPackageBuf)');
# my $ret = $MsiGetProductInfoFromScriptW->Call($szScriptFile, $lpProductBuf39, $plgidLanguage, $pdwVersion, $lpNameBuf, $pcchNameBuf, $lpPackageBuf, $pcchPackageBuf);
# szScriptFile : LPCWSTR -> LPCWSTR
# lpProductBuf39 : LPWSTR optional, out -> LPWSTR
# plgidLanguage : WORD* optional, out -> LPVOID
# pdwVersion : DWORD* optional, out -> LPVOID
# lpNameBuf : LPWSTR optional, out -> LPWSTR
# pcchNameBuf : DWORD* optional, in/out -> LPVOID
# lpPackageBuf : LPWSTR optional, out -> LPWSTR
# pcchPackageBuf : DWORD* optional, 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。