ホーム › System.Com.StructuredStorage › OleConvertOLESTREAMToIStorageEx

OleConvertOLESTREAMToIStorageEx

関数

表示情報付きでOLESTREAMをIStorageへ変換する。

DLLOLE32.dll呼出規約winapi対応OSWindows 2000 以降

シグネチャ

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

HRESULT OleConvertOLESTREAMToIStorageEx(
    OLESTREAM* polestm,
    IStorage* pstg,
    WORD* pcfFormat,
    INT* plwWidth,
    INT* plHeight,
    DWORD* pdwSize,
    STGMEDIUM* pmedium
);

パラメーター

名前	型	方向	説明
polestm	OLESTREAM*	in	変換元のOLE1形式OLESTREAMへのポインタ。
pstg	IStorage*	in	変換結果を書き込む先のIStorageへのポインタ。
pcfFormat	WORD*	out	抽出したクリップボード形式(CLIPFORMAT)値を受け取る出力ポインタ。
plwWidth	INT*	out	抽出した表示幅(HIMETRIC単位)を受け取る出力ポインタ。
plHeight	INT*	out	抽出した表示高さ(HIMETRIC単位)を受け取る出力ポインタ。
pdwSize	DWORD*	out	抽出したデータのバイトサイズを受け取る出力ポインタ。
pmedium	STGMEDIUM*	out	抽出した表示用データを受け取るSTGMEDIUMへのポインタ。

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT OleConvertOLESTREAMToIStorageEx(
    OLESTREAM* polestm,
    IStorage* pstg,
    WORD* pcfFormat,
    INT* plwWidth,
    INT* plHeight,
    DWORD* pdwSize,
    STGMEDIUM* pmedium
);

[DllImport("OLE32.dll", ExactSpelling = true)]
static extern int OleConvertOLESTREAMToIStorageEx(
    IntPtr polestm,   // OLESTREAM*
    IntPtr pstg,   // IStorage*
    out ushort pcfFormat,   // WORD* out
    out int plwWidth,   // INT* out
    out int plHeight,   // INT* out
    out uint pdwSize,   // DWORD* out
    IntPtr pmedium   // STGMEDIUM* out
);

<DllImport("OLE32.dll", ExactSpelling:=True)>
Public Shared Function OleConvertOLESTREAMToIStorageEx(
    polestm As IntPtr,   ' OLESTREAM*
    pstg As IntPtr,   ' IStorage*
    <Out> ByRef pcfFormat As UShort,   ' WORD* out
    <Out> ByRef plwWidth As Integer,   ' INT* out
    <Out> ByRef plHeight As Integer,   ' INT* out
    <Out> ByRef pdwSize As UInteger,   ' DWORD* out
    pmedium As IntPtr   ' STGMEDIUM* out
) As Integer
End Function

' polestm : OLESTREAM*
' pstg : IStorage*
' pcfFormat : WORD* out
' plwWidth : INT* out
' plHeight : INT* out
' pdwSize : DWORD* out
' pmedium : STGMEDIUM* out
Declare PtrSafe Function OleConvertOLESTREAMToIStorageEx Lib "ole32" ( _
    ByVal polestm As LongPtr, _
    ByVal pstg As LongPtr, _
    ByRef pcfFormat As Integer, _
    ByRef plwWidth As Long, _
    ByRef plHeight As Long, _
    ByRef pdwSize As Long, _
    ByVal pmedium 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

OleConvertOLESTREAMToIStorageEx = ctypes.windll.ole32.OleConvertOLESTREAMToIStorageEx
OleConvertOLESTREAMToIStorageEx.restype = ctypes.c_int
OleConvertOLESTREAMToIStorageEx.argtypes = [
    ctypes.c_void_p,  # polestm : OLESTREAM*
    ctypes.c_void_p,  # pstg : IStorage*
    ctypes.POINTER(ctypes.c_ushort),  # pcfFormat : WORD* out
    ctypes.POINTER(ctypes.c_int),  # plwWidth : INT* out
    ctypes.POINTER(ctypes.c_int),  # plHeight : INT* out
    ctypes.POINTER(wintypes.DWORD),  # pdwSize : DWORD* out
    ctypes.c_void_p,  # pmedium : STGMEDIUM* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLE32.dll')
OleConvertOLESTREAMToIStorageEx = Fiddle::Function.new(
  lib['OleConvertOLESTREAMToIStorageEx'],
  [
    Fiddle::TYPE_VOIDP,  # polestm : OLESTREAM*
    Fiddle::TYPE_VOIDP,  # pstg : IStorage*
    Fiddle::TYPE_VOIDP,  # pcfFormat : WORD* out
    Fiddle::TYPE_VOIDP,  # plwWidth : INT* out
    Fiddle::TYPE_VOIDP,  # plHeight : INT* out
    Fiddle::TYPE_VOIDP,  # pdwSize : DWORD* out
    Fiddle::TYPE_VOIDP,  # pmedium : STGMEDIUM* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "ole32")]
extern "system" {
    fn OleConvertOLESTREAMToIStorageEx(
        polestm: *mut OLESTREAM,  // OLESTREAM*
        pstg: *mut core::ffi::c_void,  // IStorage*
        pcfFormat: *mut u16,  // WORD* out
        plwWidth: *mut i32,  // INT* out
        plHeight: *mut i32,  // INT* out
        pdwSize: *mut u32,  // DWORD* out
        pmedium: *mut STGMEDIUM  // STGMEDIUM* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLE32.dll")]
public static extern int OleConvertOLESTREAMToIStorageEx(IntPtr polestm, IntPtr pstg, out ushort pcfFormat, out int plwWidth, out int plHeight, out uint pdwSize, IntPtr pmedium);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLE32_OleConvertOLESTREAMToIStorageEx' -Namespace Win32 -PassThru
# $api::OleConvertOLESTREAMToIStorageEx(polestm, pstg, pcfFormat, plwWidth, plHeight, pdwSize, pmedium)

#uselib "OLE32.dll"
#func global OleConvertOLESTREAMToIStorageEx "OleConvertOLESTREAMToIStorageEx" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; OleConvertOLESTREAMToIStorageEx varptr(polestm), pstg, varptr(pcfFormat), varptr(plwWidth), varptr(plHeight), varptr(pdwSize), varptr(pmedium)   ; 戻り値は stat
; polestm : OLESTREAM* -> "sptr"
; pstg : IStorage* -> "sptr"
; pcfFormat : WORD* out -> "sptr"
; plwWidth : INT* out -> "sptr"
; plHeight : INT* out -> "sptr"
; pdwSize : DWORD* out -> "sptr"
; pmedium : STGMEDIUM* 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。

出力引数:

#uselib "OLE32.dll"
#cfunc global OleConvertOLESTREAMToIStorageEx "OleConvertOLESTREAMToIStorageEx" var, sptr, var, var, var, var, var
; res = OleConvertOLESTREAMToIStorageEx(polestm, pstg, pcfFormat, plwWidth, plHeight, pdwSize, pmedium)
; polestm : OLESTREAM* -> "var"
; pstg : IStorage* -> "sptr"
; pcfFormat : WORD* out -> "var"
; plwWidth : INT* out -> "var"
; plHeight : INT* out -> "var"
; pdwSize : DWORD* out -> "var"
; pmedium : STGMEDIUM* out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。#uselib "OLE32.dll"
#cfunc global OleConvertOLESTREAMToIStorageEx "OleConvertOLESTREAMToIStorageEx" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; res = OleConvertOLESTREAMToIStorageEx(varptr(polestm), pstg, varptr(pcfFormat), varptr(plwWidth), varptr(plHeight), varptr(pdwSize), varptr(pmedium))
; polestm : OLESTREAM* -> "sptr"
; pstg : IStorage* -> "sptr"
; pcfFormat : WORD* out -> "sptr"
; plwWidth : INT* out -> "sptr"
; plHeight : INT* out -> "sptr"
; pdwSize : DWORD* out -> "sptr"
; pmedium : STGMEDIUM* out -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; HRESULT OleConvertOLESTREAMToIStorageEx(OLESTREAM* polestm, IStorage* pstg, WORD* pcfFormat, INT* plwWidth, INT* plHeight, DWORD* pdwSize, STGMEDIUM* pmedium)
#uselib "OLE32.dll"
#cfunc global OleConvertOLESTREAMToIStorageEx "OleConvertOLESTREAMToIStorageEx" var, intptr, var, var, var, var, var
; res = OleConvertOLESTREAMToIStorageEx(polestm, pstg, pcfFormat, plwWidth, plHeight, pdwSize, pmedium)
; polestm : OLESTREAM* -> "var"
; pstg : IStorage* -> "intptr"
; pcfFormat : WORD* out -> "var"
; plwWidth : INT* out -> "var"
; plHeight : INT* out -> "var"
; pdwSize : DWORD* out -> "var"
; pmedium : STGMEDIUM* out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。; HRESULT OleConvertOLESTREAMToIStorageEx(OLESTREAM* polestm, IStorage* pstg, WORD* pcfFormat, INT* plwWidth, INT* plHeight, DWORD* pdwSize, STGMEDIUM* pmedium)
#uselib "OLE32.dll"
#cfunc global OleConvertOLESTREAMToIStorageEx "OleConvertOLESTREAMToIStorageEx" intptr, intptr, intptr, intptr, intptr, intptr, intptr
; res = OleConvertOLESTREAMToIStorageEx(varptr(polestm), pstg, varptr(pcfFormat), varptr(plwWidth), varptr(plHeight), varptr(pdwSize), varptr(pmedium))
; polestm : OLESTREAM* -> "intptr"
; pstg : IStorage* -> "intptr"
; pcfFormat : WORD* out -> "intptr"
; plwWidth : INT* out -> "intptr"
; plHeight : INT* out -> "intptr"
; pdwSize : DWORD* out -> "intptr"
; pmedium : STGMEDIUM* out -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

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

var (
	ole32 = windows.NewLazySystemDLL("OLE32.dll")
	procOleConvertOLESTREAMToIStorageEx = ole32.NewProc("OleConvertOLESTREAMToIStorageEx")
)

// polestm (OLESTREAM*), pstg (IStorage*), pcfFormat (WORD* out), plwWidth (INT* out), plHeight (INT* out), pdwSize (DWORD* out), pmedium (STGMEDIUM* out)
r1, _, err := procOleConvertOLESTREAMToIStorageEx.Call(
	uintptr(polestm),
	uintptr(pstg),
	uintptr(pcfFormat),
	uintptr(plwWidth),
	uintptr(plHeight),
	uintptr(pdwSize),
	uintptr(pmedium),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function OleConvertOLESTREAMToIStorageEx(
  polestm: Pointer;   // OLESTREAM*
  pstg: Pointer;   // IStorage*
  pcfFormat: Pointer;   // WORD* out
  plwWidth: Pointer;   // INT* out
  plHeight: Pointer;   // INT* out
  pdwSize: Pointer;   // DWORD* out
  pmedium: Pointer   // STGMEDIUM* out
): Integer; stdcall;
  external 'OLE32.dll' name 'OleConvertOLESTREAMToIStorageEx';

result := DllCall("OLE32\OleConvertOLESTREAMToIStorageEx"
    , "Ptr", polestm   ; OLESTREAM*
    , "Ptr", pstg   ; IStorage*
    , "Ptr", pcfFormat   ; WORD* out
    , "Ptr", plwWidth   ; INT* out
    , "Ptr", plHeight   ; INT* out
    , "Ptr", pdwSize   ; DWORD* out
    , "Ptr", pmedium   ; STGMEDIUM* out
    , "Int")   ; return: HRESULT

●OleConvertOLESTREAMToIStorageEx(polestm, pstg, pcfFormat, plwWidth, plHeight, pdwSize, pmedium) = DLL("OLE32.dll", "int OleConvertOLESTREAMToIStorageEx(void*, void*, void*, void*, void*, void*, void*)")
# 呼び出し: OleConvertOLESTREAMToIStorageEx(polestm, pstg, pcfFormat, plwWidth, plHeight, pdwSize, pmedium)
# polestm : OLESTREAM* -> "void*"
# pstg : IStorage* -> "void*"
# pcfFormat : WORD* out -> "void*"
# plwWidth : INT* out -> "void*"
# plHeight : INT* out -> "void*"
# pdwSize : DWORD* out -> "void*"
# pmedium : STGMEDIUM* 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 OleConvertOLESTREAMToIStorageEx(
    polestm: [*c]OLESTREAM, // OLESTREAM*
    pstg: ?*anyopaque, // IStorage*
    pcfFormat: [*c]u16, // WORD* out
    plwWidth: [*c]i32, // INT* out
    plHeight: [*c]i32, // INT* out
    pdwSize: [*c]u32, // DWORD* out
    pmedium: [*c]STGMEDIUM // STGMEDIUM* out
) callconv(std.os.windows.WINAPI) i32;

proc OleConvertOLESTREAMToIStorageEx(
    polestm: ptr OLESTREAM,  # OLESTREAM*
    pstg: pointer,  # IStorage*
    pcfFormat: ptr uint16,  # WORD* out
    plwWidth: ptr int32,  # INT* out
    plHeight: ptr int32,  # INT* out
    pdwSize: ptr uint32,  # DWORD* out
    pmedium: ptr STGMEDIUM  # STGMEDIUM* out
): int32 {.importc: "OleConvertOLESTREAMToIStorageEx", stdcall, dynlib: "OLE32.dll".}

pragma(lib, "ole32");
extern(Windows)
int OleConvertOLESTREAMToIStorageEx(
    OLESTREAM* polestm,   // OLESTREAM*
    void* pstg,   // IStorage*
    ushort* pcfFormat,   // WORD* out
    int* plwWidth,   // INT* out
    int* plHeight,   // INT* out
    uint* pdwSize,   // DWORD* out
    STGMEDIUM* pmedium   // STGMEDIUM* out
);

ccall((:OleConvertOLESTREAMToIStorageEx, "OLE32.dll"), stdcall, Int32,
      (Ptr{OLESTREAM}, Ptr{Cvoid}, Ptr{UInt16}, Ptr{Int32}, Ptr{Int32}, Ptr{UInt32}, Ptr{STGMEDIUM}),
      polestm, pstg, pcfFormat, plwWidth, plHeight, pdwSize, pmedium)
# polestm : OLESTREAM* -> Ptr{OLESTREAM}
# pstg : IStorage* -> Ptr{Cvoid}
# pcfFormat : WORD* out -> Ptr{UInt16}
# plwWidth : INT* out -> Ptr{Int32}
# plHeight : INT* out -> Ptr{Int32}
# pdwSize : DWORD* out -> Ptr{UInt32}
# pmedium : STGMEDIUM* out -> Ptr{STGMEDIUM}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t OleConvertOLESTREAMToIStorageEx(
    void* polestm,
    void* pstg,
    uint16_t* pcfFormat,
    int32_t* plwWidth,
    int32_t* plHeight,
    uint32_t* pdwSize,
    void* pmedium);
]]
local ole32 = ffi.load("ole32")
-- ole32.OleConvertOLESTREAMToIStorageEx(polestm, pstg, pcfFormat, plwWidth, plHeight, pdwSize, pmedium)
-- polestm : OLESTREAM*
-- pstg : IStorage*
-- pcfFormat : WORD* out
-- plwWidth : INT* out
-- plHeight : INT* out
-- pdwSize : DWORD* out
-- pmedium : STGMEDIUM* 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 OleConvertOLESTREAMToIStorageEx = lib.func('__stdcall', 'OleConvertOLESTREAMToIStorageEx', 'int32_t', ['void *', 'void *', 'uint16_t *', 'int32_t *', 'int32_t *', 'uint32_t *', 'void *']);
// OleConvertOLESTREAMToIStorageEx(polestm, pstg, pcfFormat, plwWidth, plHeight, pdwSize, pmedium)
// polestm : OLESTREAM* -> 'void *'
// pstg : IStorage* -> 'void *'
// pcfFormat : WORD* out -> 'uint16_t *'
// plwWidth : INT* out -> 'int32_t *'
// plHeight : INT* out -> 'int32_t *'
// pdwSize : DWORD* out -> 'uint32_t *'
// pmedium : STGMEDIUM* 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", {
  OleConvertOLESTREAMToIStorageEx: { parameters: ["pointer", "pointer", "pointer", "pointer", "pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.OleConvertOLESTREAMToIStorageEx(polestm, pstg, pcfFormat, plwWidth, plHeight, pdwSize, pmedium)
// polestm : OLESTREAM* -> "pointer"
// pstg : IStorage* -> "pointer"
// pcfFormat : WORD* out -> "pointer"
// plwWidth : INT* out -> "pointer"
// plHeight : INT* out -> "pointer"
// pdwSize : DWORD* out -> "pointer"
// pmedium : STGMEDIUM* 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 OleConvertOLESTREAMToIStorageEx(
    void* polestm,
    void* pstg,
    uint16_t* pcfFormat,
    int32_t* plwWidth,
    int32_t* plHeight,
    uint32_t* pdwSize,
    void* pmedium);
C, "OLE32.dll");
// $ffi->OleConvertOLESTREAMToIStorageEx(polestm, pstg, pcfFormat, plwWidth, plHeight, pdwSize, pmedium);
// polestm : OLESTREAM*
// pstg : IStorage*
// pcfFormat : WORD* out
// plwWidth : INT* out
// plHeight : INT* out
// pdwSize : DWORD* out
// pmedium : STGMEDIUM* 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 OleConvertOLESTREAMToIStorageEx(
        Pointer polestm,   // OLESTREAM*
        Pointer pstg,   // IStorage*
        ShortByReference pcfFormat,   // WORD* out
        IntByReference plwWidth,   // INT* out
        IntByReference plHeight,   // INT* out
        IntByReference pdwSize,   // DWORD* out
        Pointer pmedium   // STGMEDIUM* out
    );
}

@[Link("ole32")]
lib LibOLE32
  fun OleConvertOLESTREAMToIStorageEx = OleConvertOLESTREAMToIStorageEx(
    polestm : OLESTREAM*,   # OLESTREAM*
    pstg : Void*,   # IStorage*
    pcfFormat : UInt16*,   # WORD* out
    plwWidth : Int32*,   # INT* out
    plHeight : Int32*,   # INT* out
    pdwSize : UInt32*,   # DWORD* out
    pmedium : STGMEDIUM*   # STGMEDIUM* 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 OleConvertOLESTREAMToIStorageExNative = Int32 Function(Pointer<Void>, Pointer<Void>, Pointer<Uint16>, Pointer<Int32>, Pointer<Int32>, Pointer<Uint32>, Pointer<Void>);
typedef OleConvertOLESTREAMToIStorageExDart = int Function(Pointer<Void>, Pointer<Void>, Pointer<Uint16>, Pointer<Int32>, Pointer<Int32>, Pointer<Uint32>, Pointer<Void>);
final OleConvertOLESTREAMToIStorageEx = DynamicLibrary.open('OLE32.dll')
    .lookupFunction<OleConvertOLESTREAMToIStorageExNative, OleConvertOLESTREAMToIStorageExDart>('OleConvertOLESTREAMToIStorageEx');
// polestm : OLESTREAM* -> Pointer<Void>
// pstg : IStorage* -> Pointer<Void>
// pcfFormat : WORD* out -> Pointer<Uint16>
// plwWidth : INT* out -> Pointer<Int32>
// plHeight : INT* out -> Pointer<Int32>
// pdwSize : DWORD* out -> Pointer<Uint32>
// pmedium : STGMEDIUM* out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function OleConvertOLESTREAMToIStorageEx(
  polestm: Pointer;   // OLESTREAM*
  pstg: Pointer;   // IStorage*
  pcfFormat: Pointer;   // WORD* out
  plwWidth: Pointer;   // INT* out
  plHeight: Pointer;   // INT* out
  pdwSize: Pointer;   // DWORD* out
  pmedium: Pointer   // STGMEDIUM* out
): Integer; stdcall;
  external 'OLE32.dll' name 'OleConvertOLESTREAMToIStorageEx';

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

foreign import stdcall safe "OleConvertOLESTREAMToIStorageEx"
  c_OleConvertOLESTREAMToIStorageEx :: Ptr () -> Ptr () -> Ptr Word16 -> Ptr Int32 -> Ptr Int32 -> Ptr Word32 -> Ptr () -> IO Int32
-- polestm : OLESTREAM* -> Ptr ()
-- pstg : IStorage* -> Ptr ()
-- pcfFormat : WORD* out -> Ptr Word16
-- plwWidth : INT* out -> Ptr Int32
-- plHeight : INT* out -> Ptr Int32
-- pdwSize : DWORD* out -> Ptr Word32
-- pmedium : STGMEDIUM* 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 oleconvertolestreamtoistorageex =
  foreign "OleConvertOLESTREAMToIStorageEx"
    ((ptr void) @-> (ptr void) @-> (ptr uint16_t) @-> (ptr int32_t) @-> (ptr int32_t) @-> (ptr uint32_t) @-> (ptr void) @-> returning int32_t)
(* polestm : OLESTREAM* -> (ptr void) *)
(* pstg : IStorage* -> (ptr void) *)
(* pcfFormat : WORD* out -> (ptr uint16_t) *)
(* plwWidth : INT* out -> (ptr int32_t) *)
(* plHeight : INT* out -> (ptr int32_t) *)
(* pdwSize : DWORD* out -> (ptr uint32_t) *)
(* pmedium : STGMEDIUM* 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 ("OleConvertOLESTREAMToIStorageEx" ole-convert-olestreamto-istorage-ex :convention :stdcall) :int32
  (polestm :pointer)   ; OLESTREAM*
  (pstg :pointer)   ; IStorage*
  (pcf-format :pointer)   ; WORD* out
  (plw-width :pointer)   ; INT* out
  (pl-height :pointer)   ; INT* out
  (pdw-size :pointer)   ; DWORD* out
  (pmedium :pointer))   ; STGMEDIUM* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $OleConvertOLESTREAMToIStorageEx = Win32::API::More->new('OLE32',
    'int OleConvertOLESTREAMToIStorageEx(LPVOID polestm, LPVOID pstg, LPVOID pcfFormat, LPVOID plwWidth, LPVOID plHeight, LPVOID pdwSize, LPVOID pmedium)');
# my $ret = $OleConvertOLESTREAMToIStorageEx->Call($polestm, $pstg, $pcfFormat, $plwWidth, $plHeight, $pdwSize, $pmedium);
# polestm : OLESTREAM* -> LPVOID
# pstg : IStorage* -> LPVOID
# pcfFormat : WORD* out -> LPVOID
# plwWidth : INT* out -> LPVOID
# plHeight : INT* out -> LPVOID
# pdwSize : DWORD* out -> LPVOID
# pmedium : STGMEDIUM* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

OleConvertOLESTREAMToIStorageEx

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