MsiRecordReadStream

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

DWORD MsiRecordReadStream(
    MSIHANDLE hRecord,
    DWORD iField,
    LPSTR szDataBuf,   // optional
    DWORD* pcbDataBuf
);

<DllImport("msi.dll", ExactSpelling:=True)>
Public Shared Function MsiRecordReadStream(
    hRecord As UInteger,   ' MSIHANDLE
    iField As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPStr)> szDataBuf As System.Text.StringBuilder,   ' LPSTR optional, out
    ByRef pcbDataBuf As UInteger   ' DWORD* in/out
) As UInteger
End Function

' hRecord : MSIHANDLE
' iField : DWORD
' szDataBuf : LPSTR optional, out
' pcbDataBuf : DWORD* in/out
Declare PtrSafe Function MsiRecordReadStream Lib "msi" ( _
    ByVal hRecord As Long, _
    ByVal iField As Long, _
    ByVal szDataBuf As String, _
    ByRef pcbDataBuf 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

MsiRecordReadStream = ctypes.windll.msi.MsiRecordReadStream
MsiRecordReadStream.restype = wintypes.DWORD
MsiRecordReadStream.argtypes = [
    wintypes.DWORD,  # hRecord : MSIHANDLE
    wintypes.DWORD,  # iField : DWORD
    wintypes.LPSTR,  # szDataBuf : LPSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcbDataBuf : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msi.dll')
MsiRecordReadStream = Fiddle::Function.new(
  lib['MsiRecordReadStream'],
  [
    -Fiddle::TYPE_INT,  # hRecord : MSIHANDLE
    -Fiddle::TYPE_INT,  # iField : DWORD
    Fiddle::TYPE_VOIDP,  # szDataBuf : LPSTR optional, out
    Fiddle::TYPE_VOIDP,  # pcbDataBuf : DWORD* in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "msi")]
extern "system" {
    fn MsiRecordReadStream(
        hRecord: u32,  // MSIHANDLE
        iField: u32,  // DWORD
        szDataBuf: *mut u8,  // LPSTR optional, out
        pcbDataBuf: *mut u32  // DWORD* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("msi.dll")]
public static extern uint MsiRecordReadStream(uint hRecord, uint iField, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder szDataBuf, ref uint pcbDataBuf);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msi_MsiRecordReadStream' -Namespace Win32 -PassThru
# $api::MsiRecordReadStream(hRecord, iField, szDataBuf, pcbDataBuf)

#uselib "msi.dll"
#func global MsiRecordReadStream "MsiRecordReadStream" sptr, sptr, sptr, sptr
; MsiRecordReadStream hRecord, iField, varptr(szDataBuf), varptr(pcbDataBuf)   ; 戻り値は stat
; hRecord : MSIHANDLE -> "sptr"
; iField : DWORD -> "sptr"
; szDataBuf : LPSTR optional, out -> "sptr"
; pcbDataBuf : DWORD* 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")
	procMsiRecordReadStream = msi.NewProc("MsiRecordReadStream")
)

// hRecord (MSIHANDLE), iField (DWORD), szDataBuf (LPSTR optional, out), pcbDataBuf (DWORD* in/out)
r1, _, err := procMsiRecordReadStream.Call(
	uintptr(hRecord),
	uintptr(iField),
	uintptr(szDataBuf),
	uintptr(pcbDataBuf),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function MsiRecordReadStream(
  hRecord: DWORD;   // MSIHANDLE
  iField: DWORD;   // DWORD
  szDataBuf: PAnsiChar;   // LPSTR optional, out
  pcbDataBuf: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'msi.dll' name 'MsiRecordReadStream';

result := DllCall("msi\MsiRecordReadStream"
    , "UInt", hRecord   ; MSIHANDLE
    , "UInt", iField   ; DWORD
    , "Ptr", szDataBuf   ; LPSTR optional, out
    , "Ptr", pcbDataBuf   ; DWORD* in/out
    , "UInt")   ; return: DWORD

●MsiRecordReadStream(hRecord, iField, szDataBuf, pcbDataBuf) = DLL("msi.dll", "dword MsiRecordReadStream(dword, dword, char*, void*)")
# 呼び出し: MsiRecordReadStream(hRecord, iField, szDataBuf, pcbDataBuf)
# hRecord : MSIHANDLE -> "dword"
# iField : DWORD -> "dword"
# szDataBuf : LPSTR optional, out -> "char*"
# pcbDataBuf : DWORD* 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 MsiRecordReadStream(
    hRecord: u32, // MSIHANDLE
    iField: u32, // DWORD
    szDataBuf: [*c]u8, // LPSTR optional, out
    pcbDataBuf: [*c]u32 // DWORD* in/out
) callconv(std.os.windows.WINAPI) u32;

proc MsiRecordReadStream(
    hRecord: uint32,  # MSIHANDLE
    iField: uint32,  # DWORD
    szDataBuf: ptr char,  # LPSTR optional, out
    pcbDataBuf: ptr uint32  # DWORD* in/out
): uint32 {.importc: "MsiRecordReadStream", stdcall, dynlib: "msi.dll".}

pragma(lib, "msi");
extern(Windows)
uint MsiRecordReadStream(
    uint hRecord,   // MSIHANDLE
    uint iField,   // DWORD
    char* szDataBuf,   // LPSTR optional, out
    uint* pcbDataBuf   // DWORD* in/out
);

ccall((:MsiRecordReadStream, "msi.dll"), stdcall, UInt32,
      (UInt32, UInt32, Ptr{UInt8}, Ptr{UInt32}),
      hRecord, iField, szDataBuf, pcbDataBuf)
# hRecord : MSIHANDLE -> UInt32
# iField : DWORD -> UInt32
# szDataBuf : LPSTR optional, out -> Ptr{UInt8}
# pcbDataBuf : DWORD* 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 MsiRecordReadStream(
    uint32_t hRecord,
    uint32_t iField,
    char* szDataBuf,
    uint32_t* pcbDataBuf);
]]
local msi = ffi.load("msi")
-- msi.MsiRecordReadStream(hRecord, iField, szDataBuf, pcbDataBuf)
-- hRecord : MSIHANDLE
-- iField : DWORD
-- szDataBuf : LPSTR optional, out
-- pcbDataBuf : DWORD* 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 MsiRecordReadStream = lib.func('__stdcall', 'MsiRecordReadStream', 'uint32_t', ['uint32_t', 'uint32_t', 'char *', 'uint32_t *']);
// MsiRecordReadStream(hRecord, iField, szDataBuf, pcbDataBuf)
// hRecord : MSIHANDLE -> 'uint32_t'
// iField : DWORD -> 'uint32_t'
// szDataBuf : LPSTR optional, out -> 'char *'
// pcbDataBuf : DWORD* 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", {
  MsiRecordReadStream: { parameters: ["u32", "u32", "buffer", "pointer"], result: "u32" },
});
// lib.symbols.MsiRecordReadStream(hRecord, iField, szDataBuf, pcbDataBuf)
// hRecord : MSIHANDLE -> "u32"
// iField : DWORD -> "u32"
// szDataBuf : LPSTR optional, out -> "buffer"
// pcbDataBuf : DWORD* in/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 MsiRecordReadStream(
    uint32_t hRecord,
    uint32_t iField,
    char* szDataBuf,
    uint32_t* pcbDataBuf);
C, "msi.dll");
// $ffi->MsiRecordReadStream(hRecord, iField, szDataBuf, pcbDataBuf);
// hRecord : MSIHANDLE
// iField : DWORD
// szDataBuf : LPSTR optional, out
// pcbDataBuf : DWORD* 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);
    int MsiRecordReadStream(
        int hRecord,   // MSIHANDLE
        int iField,   // DWORD
        byte[] szDataBuf,   // LPSTR optional, out
        IntByReference pcbDataBuf   // DWORD* in/out
    );
}

@[Link("msi")]
lib Libmsi
  fun MsiRecordReadStream = MsiRecordReadStream(
    hRecord : UInt32,   # MSIHANDLE
    iField : UInt32,   # DWORD
    szDataBuf : UInt8*,   # LPSTR optional, out
    pcbDataBuf : UInt32*   # DWORD* 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 MsiRecordReadStreamNative = Uint32 Function(Uint32, Uint32, Pointer<Utf8>, Pointer<Uint32>);
typedef MsiRecordReadStreamDart = int Function(int, int, Pointer<Utf8>, Pointer<Uint32>);
final MsiRecordReadStream = DynamicLibrary.open('msi.dll')
    .lookupFunction<MsiRecordReadStreamNative, MsiRecordReadStreamDart>('MsiRecordReadStream');
// hRecord : MSIHANDLE -> Uint32
// iField : DWORD -> Uint32
// szDataBuf : LPSTR optional, out -> Pointer<Utf8>
// pcbDataBuf : DWORD* in/out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function MsiRecordReadStream(
  hRecord: DWORD;   // MSIHANDLE
  iField: DWORD;   // DWORD
  szDataBuf: PAnsiChar;   // LPSTR optional, out
  pcbDataBuf: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'msi.dll' name 'MsiRecordReadStream';

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

foreign import stdcall safe "MsiRecordReadStream"
  c_MsiRecordReadStream :: Word32 -> Word32 -> CString -> Ptr Word32 -> IO Word32
-- hRecord : MSIHANDLE -> Word32
-- iField : DWORD -> Word32
-- szDataBuf : LPSTR optional, out -> CString
-- pcbDataBuf : DWORD* 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 msirecordreadstream =
  foreign "MsiRecordReadStream"
    (uint32_t @-> uint32_t @-> string @-> (ptr uint32_t) @-> returning uint32_t)
(* hRecord : MSIHANDLE -> uint32_t *)
(* iField : DWORD -> uint32_t *)
(* szDataBuf : LPSTR optional, out -> string *)
(* pcbDataBuf : DWORD* 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 ("MsiRecordReadStream" msi-record-read-stream :convention :stdcall) :uint32
  (h-record :uint32)   ; MSIHANDLE
  (i-field :uint32)   ; DWORD
  (sz-data-buf :pointer)   ; LPSTR optional, out
  (pcb-data-buf :pointer))   ; DWORD* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $MsiRecordReadStream = Win32::API::More->new('msi',
    'DWORD MsiRecordReadStream(DWORD hRecord, DWORD iField, LPSTR szDataBuf, LPVOID pcbDataBuf)');
# my $ret = $MsiRecordReadStream->Call($hRecord, $iField, $szDataBuf, $pcbDataBuf);
# hRecord : MSIHANDLE -> DWORD
# iField : DWORD -> DWORD
# szDataBuf : LPSTR optional, out -> LPSTR
# pcbDataBuf : DWORD* 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。