StgOpenPropStg

// OLE32.dll
#include <windows.h>

HRESULT StgOpenPropStg(
    IUnknown* pUnk,
    const GUID* fmtid,
    DWORD grfFlags,
    DWORD dwReserved,   // optional
    IPropertyStorage** ppPropStg
);

<DllImport("OLE32.dll", ExactSpelling:=True)>
Public Shared Function StgOpenPropStg(
    pUnk As IntPtr,   ' IUnknown*
    ByRef fmtid As Guid,   ' GUID*
    grfFlags As UInteger,   ' DWORD
    dwReserved As UInteger,   ' DWORD optional
    ppPropStg As IntPtr   ' IPropertyStorage** out
) As Integer
End Function

' pUnk : IUnknown*
' fmtid : GUID*
' grfFlags : DWORD
' dwReserved : DWORD optional
' ppPropStg : IPropertyStorage** out
Declare PtrSafe Function StgOpenPropStg Lib "ole32" ( _
    ByVal pUnk As LongPtr, _
    ByVal fmtid As LongPtr, _
    ByVal grfFlags As Long, _
    ByVal dwReserved As Long, _
    ByVal ppPropStg 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

StgOpenPropStg = ctypes.windll.ole32.StgOpenPropStg
StgOpenPropStg.restype = ctypes.c_int
StgOpenPropStg.argtypes = [
    ctypes.c_void_p,  # pUnk : IUnknown*
    ctypes.c_void_p,  # fmtid : GUID*
    wintypes.DWORD,  # grfFlags : DWORD
    wintypes.DWORD,  # dwReserved : DWORD optional
    ctypes.c_void_p,  # ppPropStg : IPropertyStorage** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLE32.dll')
StgOpenPropStg = Fiddle::Function.new(
  lib['StgOpenPropStg'],
  [
    Fiddle::TYPE_VOIDP,  # pUnk : IUnknown*
    Fiddle::TYPE_VOIDP,  # fmtid : GUID*
    -Fiddle::TYPE_INT,  # grfFlags : DWORD
    -Fiddle::TYPE_INT,  # dwReserved : DWORD optional
    Fiddle::TYPE_VOIDP,  # ppPropStg : IPropertyStorage** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "ole32")]
extern "system" {
    fn StgOpenPropStg(
        pUnk: *mut core::ffi::c_void,  // IUnknown*
        fmtid: *const GUID,  // GUID*
        grfFlags: u32,  // DWORD
        dwReserved: u32,  // DWORD optional
        ppPropStg: *mut *mut core::ffi::c_void  // IPropertyStorage** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLE32.dll")]
public static extern int StgOpenPropStg(IntPtr pUnk, ref Guid fmtid, uint grfFlags, uint dwReserved, IntPtr ppPropStg);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLE32_StgOpenPropStg' -Namespace Win32 -PassThru
# $api::StgOpenPropStg(pUnk, fmtid, grfFlags, dwReserved, ppPropStg)

#uselib "OLE32.dll"
#func global StgOpenPropStg "StgOpenPropStg" sptr, sptr, sptr, sptr, sptr
; StgOpenPropStg pUnk, varptr(fmtid), grfFlags, dwReserved, ppPropStg   ; 戻り値は stat
; pUnk : IUnknown* -> "sptr"
; fmtid : GUID* -> "sptr"
; grfFlags : DWORD -> "sptr"
; dwReserved : DWORD optional -> "sptr"
; ppPropStg : IPropertyStorage** 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 (
	ole32 = windows.NewLazySystemDLL("OLE32.dll")
	procStgOpenPropStg = ole32.NewProc("StgOpenPropStg")
)

// pUnk (IUnknown*), fmtid (GUID*), grfFlags (DWORD), dwReserved (DWORD optional), ppPropStg (IPropertyStorage** out)
r1, _, err := procStgOpenPropStg.Call(
	uintptr(pUnk),
	uintptr(fmtid),
	uintptr(grfFlags),
	uintptr(dwReserved),
	uintptr(ppPropStg),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function StgOpenPropStg(
  pUnk: Pointer;   // IUnknown*
  fmtid: PGUID;   // GUID*
  grfFlags: DWORD;   // DWORD
  dwReserved: DWORD;   // DWORD optional
  ppPropStg: Pointer   // IPropertyStorage** out
): Integer; stdcall;
  external 'OLE32.dll' name 'StgOpenPropStg';

result := DllCall("OLE32\StgOpenPropStg"
    , "Ptr", pUnk   ; IUnknown*
    , "Ptr", fmtid   ; GUID*
    , "UInt", grfFlags   ; DWORD
    , "UInt", dwReserved   ; DWORD optional
    , "Ptr", ppPropStg   ; IPropertyStorage** out
    , "Int")   ; return: HRESULT

●StgOpenPropStg(pUnk, fmtid, grfFlags, dwReserved, ppPropStg) = DLL("OLE32.dll", "int StgOpenPropStg(void*, void*, dword, dword, void*)")
# 呼び出し: StgOpenPropStg(pUnk, fmtid, grfFlags, dwReserved, ppPropStg)
# pUnk : IUnknown* -> "void*"
# fmtid : GUID* -> "void*"
# grfFlags : DWORD -> "dword"
# dwReserved : DWORD optional -> "dword"
# ppPropStg : IPropertyStorage** 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 "ole32" fn StgOpenPropStg(
    pUnk: ?*anyopaque, // IUnknown*
    fmtid: [*c]GUID, // GUID*
    grfFlags: u32, // DWORD
    dwReserved: u32, // DWORD optional
    ppPropStg: ?*anyopaque // IPropertyStorage** out
) callconv(std.os.windows.WINAPI) i32;

proc StgOpenPropStg(
    pUnk: pointer,  # IUnknown*
    fmtid: ptr GUID,  # GUID*
    grfFlags: uint32,  # DWORD
    dwReserved: uint32,  # DWORD optional
    ppPropStg: pointer  # IPropertyStorage** out
): int32 {.importc: "StgOpenPropStg", stdcall, dynlib: "OLE32.dll".}

pragma(lib, "ole32");
extern(Windows)
int StgOpenPropStg(
    void* pUnk,   // IUnknown*
    GUID* fmtid,   // GUID*
    uint grfFlags,   // DWORD
    uint dwReserved,   // DWORD optional
    void* ppPropStg   // IPropertyStorage** out
);

ccall((:StgOpenPropStg, "OLE32.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Ptr{GUID}, UInt32, UInt32, Ptr{Cvoid}),
      pUnk, fmtid, grfFlags, dwReserved, ppPropStg)
# pUnk : IUnknown* -> Ptr{Cvoid}
# fmtid : GUID* -> Ptr{GUID}
# grfFlags : DWORD -> UInt32
# dwReserved : DWORD optional -> UInt32
# ppPropStg : IPropertyStorage** out -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t StgOpenPropStg(
    void* pUnk,
    void* fmtid,
    uint32_t grfFlags,
    uint32_t dwReserved,
    void* ppPropStg);
]]
local ole32 = ffi.load("ole32")
-- ole32.StgOpenPropStg(pUnk, fmtid, grfFlags, dwReserved, ppPropStg)
-- pUnk : IUnknown*
-- fmtid : GUID*
-- grfFlags : DWORD
-- dwReserved : DWORD optional
-- ppPropStg : IPropertyStorage** 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('OLE32.dll');
const StgOpenPropStg = lib.func('__stdcall', 'StgOpenPropStg', 'int32_t', ['void *', 'void *', 'uint32_t', 'uint32_t', 'void *']);
// StgOpenPropStg(pUnk, fmtid, grfFlags, dwReserved, ppPropStg)
// pUnk : IUnknown* -> 'void *'
// fmtid : GUID* -> 'void *'
// grfFlags : DWORD -> 'uint32_t'
// dwReserved : DWORD optional -> 'uint32_t'
// ppPropStg : IPropertyStorage** 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("OLE32.dll", {
  StgOpenPropStg: { parameters: ["pointer", "pointer", "u32", "u32", "pointer"], result: "i32" },
});
// lib.symbols.StgOpenPropStg(pUnk, fmtid, grfFlags, dwReserved, ppPropStg)
// pUnk : IUnknown* -> "pointer"
// fmtid : GUID* -> "pointer"
// grfFlags : DWORD -> "u32"
// dwReserved : DWORD optional -> "u32"
// ppPropStg : IPropertyStorage** 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
int32_t StgOpenPropStg(
    void* pUnk,
    void* fmtid,
    uint32_t grfFlags,
    uint32_t dwReserved,
    void* ppPropStg);
C, "OLE32.dll");
// $ffi->StgOpenPropStg(pUnk, fmtid, grfFlags, dwReserved, ppPropStg);
// pUnk : IUnknown*
// fmtid : GUID*
// grfFlags : DWORD
// dwReserved : DWORD optional
// ppPropStg : IPropertyStorage** 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 Ole32 extends StdCallLibrary {
    Ole32 INSTANCE = Native.load("ole32", Ole32.class);
    int StgOpenPropStg(
        Pointer pUnk,   // IUnknown*
        Pointer fmtid,   // GUID*
        int grfFlags,   // DWORD
        int dwReserved,   // DWORD optional
        Pointer ppPropStg   // IPropertyStorage** out
    );
}

@[Link("ole32")]
lib LibOLE32
  fun StgOpenPropStg = StgOpenPropStg(
    pUnk : Void*,   # IUnknown*
    fmtid : GUID*,   # GUID*
    grfFlags : UInt32,   # DWORD
    dwReserved : UInt32,   # DWORD optional
    ppPropStg : Void*   # IPropertyStorage** 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 StgOpenPropStgNative = Int32 Function(Pointer<Void>, Pointer<Void>, Uint32, Uint32, Pointer<Void>);
typedef StgOpenPropStgDart = int Function(Pointer<Void>, Pointer<Void>, int, int, Pointer<Void>);
final StgOpenPropStg = DynamicLibrary.open('OLE32.dll')
    .lookupFunction<StgOpenPropStgNative, StgOpenPropStgDart>('StgOpenPropStg');
// pUnk : IUnknown* -> Pointer<Void>
// fmtid : GUID* -> Pointer<Void>
// grfFlags : DWORD -> Uint32
// dwReserved : DWORD optional -> Uint32
// ppPropStg : IPropertyStorage** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function StgOpenPropStg(
  pUnk: Pointer;   // IUnknown*
  fmtid: PGUID;   // GUID*
  grfFlags: DWORD;   // DWORD
  dwReserved: DWORD;   // DWORD optional
  ppPropStg: Pointer   // IPropertyStorage** out
): Integer; stdcall;
  external 'OLE32.dll' name 'StgOpenPropStg';

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

foreign import stdcall safe "StgOpenPropStg"
  c_StgOpenPropStg :: Ptr () -> Ptr () -> Word32 -> Word32 -> Ptr () -> IO Int32
-- pUnk : IUnknown* -> Ptr ()
-- fmtid : GUID* -> Ptr ()
-- grfFlags : DWORD -> Word32
-- dwReserved : DWORD optional -> Word32
-- ppPropStg : IPropertyStorage** 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 stgopenpropstg =
  foreign "StgOpenPropStg"
    ((ptr void) @-> (ptr void) @-> uint32_t @-> uint32_t @-> (ptr void) @-> returning int32_t)
(* pUnk : IUnknown* -> (ptr void) *)
(* fmtid : GUID* -> (ptr void) *)
(* grfFlags : DWORD -> uint32_t *)
(* dwReserved : DWORD optional -> uint32_t *)
(* ppPropStg : IPropertyStorage** 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 ole32 (t "OLE32.dll"))
(cffi:use-foreign-library ole32)

(cffi:defcfun ("StgOpenPropStg" stg-open-prop-stg :convention :stdcall) :int32
  (p-unk :pointer)   ; IUnknown*
  (fmtid :pointer)   ; GUID*
  (grf-flags :uint32)   ; DWORD
  (dw-reserved :uint32)   ; DWORD optional
  (pp-prop-stg :pointer))   ; IPropertyStorage** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $StgOpenPropStg = Win32::API::More->new('OLE32',
    'int StgOpenPropStg(LPVOID pUnk, LPVOID fmtid, DWORD grfFlags, DWORD dwReserved, LPVOID ppPropStg)');
# my $ret = $StgOpenPropStg->Call($pUnk, $fmtid, $grfFlags, $dwReserved, $ppPropStg);
# pUnk : IUnknown* -> LPVOID
# fmtid : GUID* -> LPVOID
# grfFlags : DWORD -> DWORD
# dwReserved : DWORD optional -> DWORD
# ppPropStg : IPropertyStorage** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。