MsiGetProductInfoFromScriptA

// msi.dll  (ANSI / -A)
#include <windows.h>

DWORD MsiGetProductInfoFromScriptA(
    LPCSTR szScriptFile,
    LPSTR lpProductBuf39,   // optional
    WORD* plgidLanguage,   // optional
    DWORD* pdwVersion,   // optional
    LPSTR lpNameBuf,   // optional
    DWORD* pcchNameBuf,   // optional
    LPSTR lpPackageBuf,   // optional
    DWORD* pcchPackageBuf   // optional
);

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

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

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

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msi.dll')
MsiGetProductInfoFromScriptA = Fiddle::Function.new(
  lib['MsiGetProductInfoFromScriptA'],
  [
    Fiddle::TYPE_VOIDP,  # szScriptFile : LPCSTR
    Fiddle::TYPE_VOIDP,  # lpProductBuf39 : LPSTR optional, out
    Fiddle::TYPE_VOIDP,  # plgidLanguage : WORD* optional, out
    Fiddle::TYPE_VOIDP,  # pdwVersion : DWORD* optional, out
    Fiddle::TYPE_VOIDP,  # lpNameBuf : LPSTR optional, out
    Fiddle::TYPE_VOIDP,  # pcchNameBuf : DWORD* optional, in/out
    Fiddle::TYPE_VOIDP,  # lpPackageBuf : LPSTR optional, out
    Fiddle::TYPE_VOIDP,  # pcchPackageBuf : DWORD* optional, in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "msi")]
extern "system" {
    fn MsiGetProductInfoFromScriptA(
        szScriptFile: *const u8,  // LPCSTR
        lpProductBuf39: *mut u8,  // LPSTR optional, out
        plgidLanguage: *mut u16,  // WORD* optional, out
        pdwVersion: *mut u32,  // DWORD* optional, out
        lpNameBuf: *mut u8,  // LPSTR optional, out
        pcchNameBuf: *mut u32,  // DWORD* optional, in/out
        lpPackageBuf: *mut u8,  // LPSTR 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.Ansi)]
public static extern uint MsiGetProductInfoFromScriptA([MarshalAs(UnmanagedType.LPStr)] string szScriptFile, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder lpProductBuf39, IntPtr plgidLanguage, IntPtr pdwVersion, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder lpNameBuf, IntPtr pcchNameBuf, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder lpPackageBuf, IntPtr pcchPackageBuf);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msi_MsiGetProductInfoFromScriptA' -Namespace Win32 -PassThru
# $api::MsiGetProductInfoFromScriptA(szScriptFile, lpProductBuf39, plgidLanguage, pdwVersion, lpNameBuf, pcchNameBuf, lpPackageBuf, pcchPackageBuf)

#uselib "msi.dll"
#func global MsiGetProductInfoFromScriptA "MsiGetProductInfoFromScriptA" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; MsiGetProductInfoFromScriptA szScriptFile, varptr(lpProductBuf39), varptr(plgidLanguage), varptr(pdwVersion), varptr(lpNameBuf), varptr(pcchNameBuf), varptr(lpPackageBuf), varptr(pcchPackageBuf)   ; 戻り値は stat
; szScriptFile : LPCSTR -> "sptr"
; lpProductBuf39 : LPSTR optional, out -> "sptr"
; plgidLanguage : WORD* optional, out -> "sptr"
; pdwVersion : DWORD* optional, out -> "sptr"
; lpNameBuf : LPSTR optional, out -> "sptr"
; pcchNameBuf : DWORD* optional, in/out -> "sptr"
; lpPackageBuf : LPSTR optional, out -> "sptr"
; pcchPackageBuf : DWORD* optional, in/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 (
	msi = windows.NewLazySystemDLL("msi.dll")
	procMsiGetProductInfoFromScriptA = msi.NewProc("MsiGetProductInfoFromScriptA")
)

// szScriptFile (LPCSTR), lpProductBuf39 (LPSTR optional, out), plgidLanguage (WORD* optional, out), pdwVersion (DWORD* optional, out), lpNameBuf (LPSTR optional, out), pcchNameBuf (DWORD* optional, in/out), lpPackageBuf (LPSTR optional, out), pcchPackageBuf (DWORD* optional, in/out)
r1, _, err := procMsiGetProductInfoFromScriptA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(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 MsiGetProductInfoFromScriptA(
  szScriptFile: PAnsiChar;   // LPCSTR
  lpProductBuf39: PAnsiChar;   // LPSTR optional, out
  plgidLanguage: Pointer;   // WORD* optional, out
  pdwVersion: Pointer;   // DWORD* optional, out
  lpNameBuf: PAnsiChar;   // LPSTR optional, out
  pcchNameBuf: Pointer;   // DWORD* optional, in/out
  lpPackageBuf: PAnsiChar;   // LPSTR optional, out
  pcchPackageBuf: Pointer   // DWORD* optional, in/out
): DWORD; stdcall;
  external 'msi.dll' name 'MsiGetProductInfoFromScriptA';

result := DllCall("msi\MsiGetProductInfoFromScriptA"
    , "AStr", szScriptFile   ; LPCSTR
    , "Ptr", lpProductBuf39   ; LPSTR optional, out
    , "Ptr", plgidLanguage   ; WORD* optional, out
    , "Ptr", pdwVersion   ; DWORD* optional, out
    , "Ptr", lpNameBuf   ; LPSTR optional, out
    , "Ptr", pcchNameBuf   ; DWORD* optional, in/out
    , "Ptr", lpPackageBuf   ; LPSTR optional, out
    , "Ptr", pcchPackageBuf   ; DWORD* optional, in/out
    , "UInt")   ; return: DWORD

●MsiGetProductInfoFromScriptA(szScriptFile, lpProductBuf39, plgidLanguage, pdwVersion, lpNameBuf, pcchNameBuf, lpPackageBuf, pcchPackageBuf) = DLL("msi.dll", "dword MsiGetProductInfoFromScriptA(char*, char*, void*, void*, char*, void*, char*, void*)")
# 呼び出し: MsiGetProductInfoFromScriptA(szScriptFile, lpProductBuf39, plgidLanguage, pdwVersion, lpNameBuf, pcchNameBuf, lpPackageBuf, pcchPackageBuf)
# szScriptFile : LPCSTR -> "char*"
# lpProductBuf39 : LPSTR optional, out -> "char*"
# plgidLanguage : WORD* optional, out -> "void*"
# pdwVersion : DWORD* optional, out -> "void*"
# lpNameBuf : LPSTR optional, out -> "char*"
# pcchNameBuf : DWORD* optional, in/out -> "void*"
# lpPackageBuf : LPSTR 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)。

const std = @import("std");

extern "msi" fn MsiGetProductInfoFromScriptA(
    szScriptFile: [*c]const u8, // LPCSTR
    lpProductBuf39: [*c]u8, // LPSTR optional, out
    plgidLanguage: [*c]u16, // WORD* optional, out
    pdwVersion: [*c]u32, // DWORD* optional, out
    lpNameBuf: [*c]u8, // LPSTR optional, out
    pcchNameBuf: [*c]u32, // DWORD* optional, in/out
    lpPackageBuf: [*c]u8, // LPSTR optional, out
    pcchPackageBuf: [*c]u32 // DWORD* optional, in/out
) callconv(std.os.windows.WINAPI) u32;

proc MsiGetProductInfoFromScriptA(
    szScriptFile: cstring,  # LPCSTR
    lpProductBuf39: ptr char,  # LPSTR optional, out
    plgidLanguage: ptr uint16,  # WORD* optional, out
    pdwVersion: ptr uint32,  # DWORD* optional, out
    lpNameBuf: ptr char,  # LPSTR optional, out
    pcchNameBuf: ptr uint32,  # DWORD* optional, in/out
    lpPackageBuf: ptr char,  # LPSTR optional, out
    pcchPackageBuf: ptr uint32  # DWORD* optional, in/out
): uint32 {.importc: "MsiGetProductInfoFromScriptA", stdcall, dynlib: "msi.dll".}

pragma(lib, "msi");
extern(Windows)
uint MsiGetProductInfoFromScriptA(
    const(char)* szScriptFile,   // LPCSTR
    char* lpProductBuf39,   // LPSTR optional, out
    ushort* plgidLanguage,   // WORD* optional, out
    uint* pdwVersion,   // DWORD* optional, out
    char* lpNameBuf,   // LPSTR optional, out
    uint* pcchNameBuf,   // DWORD* optional, in/out
    char* lpPackageBuf,   // LPSTR optional, out
    uint* pcchPackageBuf   // DWORD* optional, in/out
);

ccall((:MsiGetProductInfoFromScriptA, "msi.dll"), stdcall, UInt32,
      (Cstring, Ptr{UInt8}, Ptr{UInt16}, Ptr{UInt32}, Ptr{UInt8}, Ptr{UInt32}, Ptr{UInt8}, Ptr{UInt32}),
      szScriptFile, lpProductBuf39, plgidLanguage, pdwVersion, lpNameBuf, pcchNameBuf, lpPackageBuf, pcchPackageBuf)
# szScriptFile : LPCSTR -> Cstring
# lpProductBuf39 : LPSTR optional, out -> Ptr{UInt8}
# plgidLanguage : WORD* optional, out -> Ptr{UInt16}
# pdwVersion : DWORD* optional, out -> Ptr{UInt32}
# lpNameBuf : LPSTR optional, out -> Ptr{UInt8}
# pcchNameBuf : DWORD* optional, in/out -> Ptr{UInt32}
# lpPackageBuf : LPSTR optional, out -> Ptr{UInt8}
# pcchPackageBuf : DWORD* optional, in/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 MsiGetProductInfoFromScriptA(
    const char* szScriptFile,
    char* lpProductBuf39,
    uint16_t* plgidLanguage,
    uint32_t* pdwVersion,
    char* lpNameBuf,
    uint32_t* pcchNameBuf,
    char* lpPackageBuf,
    uint32_t* pcchPackageBuf);
]]
local msi = ffi.load("msi")
-- msi.MsiGetProductInfoFromScriptA(szScriptFile, lpProductBuf39, plgidLanguage, pdwVersion, lpNameBuf, pcchNameBuf, lpPackageBuf, pcchPackageBuf)
-- szScriptFile : LPCSTR
-- lpProductBuf39 : LPSTR optional, out
-- plgidLanguage : WORD* optional, out
-- pdwVersion : DWORD* optional, out
-- lpNameBuf : LPSTR optional, out
-- pcchNameBuf : DWORD* optional, in/out
-- lpPackageBuf : LPSTR 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。

const koffi = require('koffi');
const lib = koffi.load('msi.dll');
const MsiGetProductInfoFromScriptA = lib.func('__stdcall', 'MsiGetProductInfoFromScriptA', 'uint32_t', ['str', 'char *', 'uint16_t *', 'uint32_t *', 'char *', 'uint32_t *', 'char *', 'uint32_t *']);
// MsiGetProductInfoFromScriptA(szScriptFile, lpProductBuf39, plgidLanguage, pdwVersion, lpNameBuf, pcchNameBuf, lpPackageBuf, pcchPackageBuf)
// szScriptFile : LPCSTR -> 'str'
// lpProductBuf39 : LPSTR optional, out -> 'char *'
// plgidLanguage : WORD* optional, out -> 'uint16_t *'
// pdwVersion : DWORD* optional, out -> 'uint32_t *'
// lpNameBuf : LPSTR optional, out -> 'char *'
// pcchNameBuf : DWORD* optional, in/out -> 'uint32_t *'
// lpPackageBuf : LPSTR optional, out -> 'char *'
// 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", {
  MsiGetProductInfoFromScriptA: { parameters: ["buffer", "buffer", "pointer", "pointer", "buffer", "pointer", "buffer", "pointer"], result: "u32" },
});
// lib.symbols.MsiGetProductInfoFromScriptA(szScriptFile, lpProductBuf39, plgidLanguage, pdwVersion, lpNameBuf, pcchNameBuf, lpPackageBuf, pcchPackageBuf)
// szScriptFile : LPCSTR -> "buffer"
// lpProductBuf39 : LPSTR optional, out -> "buffer"
// plgidLanguage : WORD* optional, out -> "pointer"
// pdwVersion : DWORD* optional, out -> "pointer"
// lpNameBuf : LPSTR optional, out -> "buffer"
// pcchNameBuf : DWORD* optional, in/out -> "pointer"
// lpPackageBuf : LPSTR optional, out -> "buffer"
// pcchPackageBuf : DWORD* optional, in/out -> "pointer"
// 文字列は "buffer"。ANSI(-A) は new TextEncoder() で UTF-8/ANSI バイト列(末尾に \x00)を渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
uint32_t MsiGetProductInfoFromScriptA(
    const char* szScriptFile,
    char* lpProductBuf39,
    uint16_t* plgidLanguage,
    uint32_t* pdwVersion,
    char* lpNameBuf,
    uint32_t* pcchNameBuf,
    char* lpPackageBuf,
    uint32_t* pcchPackageBuf);
C, "msi.dll");
// $ffi->MsiGetProductInfoFromScriptA(szScriptFile, lpProductBuf39, plgidLanguage, pdwVersion, lpNameBuf, pcchNameBuf, lpPackageBuf, pcchPackageBuf);
// szScriptFile : LPCSTR
// lpProductBuf39 : LPSTR optional, out
// plgidLanguage : WORD* optional, out
// pdwVersion : DWORD* optional, out
// lpNameBuf : LPSTR optional, out
// pcchNameBuf : DWORD* optional, in/out
// lpPackageBuf : LPSTR 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.ASCII_OPTIONS);
    int MsiGetProductInfoFromScriptA(
        String szScriptFile,   // LPCSTR
        byte[] lpProductBuf39,   // LPSTR optional, out
        ShortByReference plgidLanguage,   // WORD* optional, out
        IntByReference pdwVersion,   // DWORD* optional, out
        byte[] lpNameBuf,   // LPSTR optional, out
        IntByReference pcchNameBuf,   // DWORD* optional, in/out
        byte[] lpPackageBuf,   // LPSTR optional, out
        IntByReference pcchPackageBuf   // DWORD* optional, in/out
    );
}

@[Link("msi")]
lib Libmsi
  fun MsiGetProductInfoFromScriptA = MsiGetProductInfoFromScriptA(
    szScriptFile : UInt8*,   # LPCSTR
    lpProductBuf39 : UInt8*,   # LPSTR optional, out
    plgidLanguage : UInt16*,   # WORD* optional, out
    pdwVersion : UInt32*,   # DWORD* optional, out
    lpNameBuf : UInt8*,   # LPSTR optional, out
    pcchNameBuf : UInt32*,   # DWORD* optional, in/out
    lpPackageBuf : UInt8*,   # LPSTR 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 MsiGetProductInfoFromScriptANative = Uint32 Function(Pointer<Utf8>, Pointer<Utf8>, Pointer<Uint16>, Pointer<Uint32>, Pointer<Utf8>, Pointer<Uint32>, Pointer<Utf8>, Pointer<Uint32>);
typedef MsiGetProductInfoFromScriptADart = int Function(Pointer<Utf8>, Pointer<Utf8>, Pointer<Uint16>, Pointer<Uint32>, Pointer<Utf8>, Pointer<Uint32>, Pointer<Utf8>, Pointer<Uint32>);
final MsiGetProductInfoFromScriptA = DynamicLibrary.open('msi.dll')
    .lookupFunction<MsiGetProductInfoFromScriptANative, MsiGetProductInfoFromScriptADart>('MsiGetProductInfoFromScriptA');
// szScriptFile : LPCSTR -> Pointer<Utf8>
// lpProductBuf39 : LPSTR optional, out -> Pointer<Utf8>
// plgidLanguage : WORD* optional, out -> Pointer<Uint16>
// pdwVersion : DWORD* optional, out -> Pointer<Uint32>
// lpNameBuf : LPSTR optional, out -> Pointer<Utf8>
// pcchNameBuf : DWORD* optional, in/out -> Pointer<Uint32>
// lpPackageBuf : LPSTR optional, out -> Pointer<Utf8>
// pcchPackageBuf : DWORD* optional, in/out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

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

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

foreign import stdcall safe "MsiGetProductInfoFromScriptA"
  c_MsiGetProductInfoFromScriptA :: CString -> CString -> Ptr Word16 -> Ptr Word32 -> CString -> Ptr Word32 -> CString -> Ptr Word32 -> IO Word32
-- szScriptFile : LPCSTR -> CString
-- lpProductBuf39 : LPSTR optional, out -> CString
-- plgidLanguage : WORD* optional, out -> Ptr Word16
-- pdwVersion : DWORD* optional, out -> Ptr Word32
-- lpNameBuf : LPSTR optional, out -> CString
-- pcchNameBuf : DWORD* optional, in/out -> Ptr Word32
-- lpPackageBuf : LPSTR optional, out -> CString
-- 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 msigetproductinfofromscripta =
  foreign "MsiGetProductInfoFromScriptA"
    (string @-> string @-> (ptr uint16_t) @-> (ptr uint32_t) @-> string @-> (ptr uint32_t) @-> string @-> (ptr uint32_t) @-> returning uint32_t)
(* szScriptFile : LPCSTR -> string *)
(* lpProductBuf39 : LPSTR optional, out -> string *)
(* plgidLanguage : WORD* optional, out -> (ptr uint16_t) *)
(* pdwVersion : DWORD* optional, out -> (ptr uint32_t) *)
(* lpNameBuf : LPSTR optional, out -> string *)
(* pcchNameBuf : DWORD* optional, in/out -> (ptr uint32_t) *)
(* lpPackageBuf : LPSTR optional, out -> string *)
(* 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 ("MsiGetProductInfoFromScriptA" msi-get-product-info-from-script-a :convention :stdcall) :uint32
  (sz-script-file :string)   ; LPCSTR
  (lp-product-buf39 :pointer)   ; LPSTR optional, out
  (plgid-language :pointer)   ; WORD* optional, out
  (pdw-version :pointer)   ; DWORD* optional, out
  (lp-name-buf :pointer)   ; LPSTR optional, out
  (pcch-name-buf :pointer)   ; DWORD* optional, in/out
  (lp-package-buf :pointer)   ; LPSTR 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 $MsiGetProductInfoFromScriptA = Win32::API::More->new('msi',
    'DWORD MsiGetProductInfoFromScriptA(LPCSTR szScriptFile, LPSTR lpProductBuf39, LPVOID plgidLanguage, LPVOID pdwVersion, LPSTR lpNameBuf, LPVOID pcchNameBuf, LPSTR lpPackageBuf, LPVOID pcchPackageBuf)');
# my $ret = $MsiGetProductInfoFromScriptA->Call($szScriptFile, $lpProductBuf39, $plgidLanguage, $pdwVersion, $lpNameBuf, $pcchNameBuf, $lpPackageBuf, $pcchPackageBuf);
# szScriptFile : LPCSTR -> LPCSTR
# lpProductBuf39 : LPSTR optional, out -> LPSTR
# plgidLanguage : WORD* optional, out -> LPVOID
# pdwVersion : DWORD* optional, out -> LPVOID
# lpNameBuf : LPSTR optional, out -> LPSTR
# pcchNameBuf : DWORD* optional, in/out -> LPVOID
# lpPackageBuf : LPSTR optional, out -> LPSTR
# 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。