HrIStorageFromStream

// MAPI32.dll
#include <windows.h>

HRESULT HrIStorageFromStream(
    IUnknown* lpUnkIn,
    GUID* lpInterface,
    DWORD ulFlags,
    IStorage** lppStorageOut
);

<DllImport("MAPI32.dll", ExactSpelling:=True)>
Public Shared Function HrIStorageFromStream(
    lpUnkIn As IntPtr,   ' IUnknown*
    ByRef lpInterface As Guid,   ' GUID* in/out
    ulFlags As UInteger,   ' DWORD
    lppStorageOut As IntPtr   ' IStorage** out
) As Integer
End Function

' lpUnkIn : IUnknown*
' lpInterface : GUID* in/out
' ulFlags : DWORD
' lppStorageOut : IStorage** out
Declare PtrSafe Function HrIStorageFromStream Lib "mapi32" ( _
    ByVal lpUnkIn As LongPtr, _
    ByVal lpInterface As LongPtr, _
    ByVal ulFlags As Long, _
    ByVal lppStorageOut 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

HrIStorageFromStream = ctypes.windll.mapi32.HrIStorageFromStream
HrIStorageFromStream.restype = ctypes.c_int
HrIStorageFromStream.argtypes = [
    ctypes.c_void_p,  # lpUnkIn : IUnknown*
    ctypes.c_void_p,  # lpInterface : GUID* in/out
    wintypes.DWORD,  # ulFlags : DWORD
    ctypes.c_void_p,  # lppStorageOut : IStorage** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MAPI32.dll')
HrIStorageFromStream = Fiddle::Function.new(
  lib['HrIStorageFromStream'],
  [
    Fiddle::TYPE_VOIDP,  # lpUnkIn : IUnknown*
    Fiddle::TYPE_VOIDP,  # lpInterface : GUID* in/out
    -Fiddle::TYPE_INT,  # ulFlags : DWORD
    Fiddle::TYPE_VOIDP,  # lppStorageOut : IStorage** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mapi32")]
extern "system" {
    fn HrIStorageFromStream(
        lpUnkIn: *mut core::ffi::c_void,  // IUnknown*
        lpInterface: *mut GUID,  // GUID* in/out
        ulFlags: u32,  // DWORD
        lppStorageOut: *mut *mut core::ffi::c_void  // IStorage** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MAPI32.dll")]
public static extern int HrIStorageFromStream(IntPtr lpUnkIn, ref Guid lpInterface, uint ulFlags, IntPtr lppStorageOut);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MAPI32_HrIStorageFromStream' -Namespace Win32 -PassThru
# $api::HrIStorageFromStream(lpUnkIn, lpInterface, ulFlags, lppStorageOut)

#uselib "MAPI32.dll"
#func global HrIStorageFromStream "HrIStorageFromStream" sptr, sptr, sptr, sptr
; HrIStorageFromStream lpUnkIn, varptr(lpInterface), ulFlags, lppStorageOut   ; 戻り値は stat
; lpUnkIn : IUnknown* -> "sptr"
; lpInterface : GUID* in/out -> "sptr"
; ulFlags : DWORD -> "sptr"
; lppStorageOut : IStorage** 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。

#uselib "MAPI32.dll"
#cfunc global HrIStorageFromStream "HrIStorageFromStream" sptr, var, int, sptr
; res = HrIStorageFromStream(lpUnkIn, lpInterface, ulFlags, lppStorageOut)
; lpUnkIn : IUnknown* -> "sptr"
; lpInterface : GUID* in/out -> "var"
; ulFlags : DWORD -> "int"
; lppStorageOut : IStorage** out -> "sptr"
; ※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 HrIStorageFromStream(IUnknown* lpUnkIn, GUID* lpInterface, DWORD ulFlags, IStorage** lppStorageOut)
#uselib "MAPI32.dll"
#cfunc global HrIStorageFromStream "HrIStorageFromStream" intptr, var, int, intptr
; res = HrIStorageFromStream(lpUnkIn, lpInterface, ulFlags, lppStorageOut)
; lpUnkIn : IUnknown* -> "intptr"
; lpInterface : GUID* in/out -> "var"
; ulFlags : DWORD -> "int"
; lppStorageOut : IStorage** out -> "intptr"
; ※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。

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

var (
	mapi32 = windows.NewLazySystemDLL("MAPI32.dll")
	procHrIStorageFromStream = mapi32.NewProc("HrIStorageFromStream")
)

// lpUnkIn (IUnknown*), lpInterface (GUID* in/out), ulFlags (DWORD), lppStorageOut (IStorage** out)
r1, _, err := procHrIStorageFromStream.Call(
	uintptr(lpUnkIn),
	uintptr(lpInterface),
	uintptr(ulFlags),
	uintptr(lppStorageOut),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function HrIStorageFromStream(
  lpUnkIn: Pointer;   // IUnknown*
  lpInterface: PGUID;   // GUID* in/out
  ulFlags: DWORD;   // DWORD
  lppStorageOut: Pointer   // IStorage** out
): Integer; stdcall;
  external 'MAPI32.dll' name 'HrIStorageFromStream';

result := DllCall("MAPI32\HrIStorageFromStream"
    , "Ptr", lpUnkIn   ; IUnknown*
    , "Ptr", lpInterface   ; GUID* in/out
    , "UInt", ulFlags   ; DWORD
    , "Ptr", lppStorageOut   ; IStorage** out
    , "Int")   ; return: HRESULT

●HrIStorageFromStream(lpUnkIn, lpInterface, ulFlags, lppStorageOut) = DLL("MAPI32.dll", "int HrIStorageFromStream(void*, void*, dword, void*)")
# 呼び出し: HrIStorageFromStream(lpUnkIn, lpInterface, ulFlags, lppStorageOut)
# lpUnkIn : IUnknown* -> "void*"
# lpInterface : GUID* in/out -> "void*"
# ulFlags : DWORD -> "dword"
# lppStorageOut : IStorage** 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)。