OleLoadPicture

// OLEAUT32.dll
#include <windows.h>

HRESULT OleLoadPicture(
    IStream* lpstream,
    INT lSize,
    BOOL fRunmode,
    const GUID* riid,
    void** lplpvObj
);

<DllImport("OLEAUT32.dll", ExactSpelling:=True)>
Public Shared Function OleLoadPicture(
    lpstream As IntPtr,   ' IStream*
    lSize As Integer,   ' INT
    fRunmode As Boolean,   ' BOOL
    ByRef riid As Guid,   ' GUID*
    lplpvObj As IntPtr   ' void** out
) As Integer
End Function

' lpstream : IStream*
' lSize : INT
' fRunmode : BOOL
' riid : GUID*
' lplpvObj : void** out
Declare PtrSafe Function OleLoadPicture Lib "oleaut32" ( _
    ByVal lpstream As LongPtr, _
    ByVal lSize As Long, _
    ByVal fRunmode As Long, _
    ByVal riid As LongPtr, _
    ByVal lplpvObj 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

OleLoadPicture = ctypes.windll.oleaut32.OleLoadPicture
OleLoadPicture.restype = ctypes.c_int
OleLoadPicture.argtypes = [
    ctypes.c_void_p,  # lpstream : IStream*
    ctypes.c_int,  # lSize : INT
    wintypes.BOOL,  # fRunmode : BOOL
    ctypes.c_void_p,  # riid : GUID*
    ctypes.c_void_p,  # lplpvObj : void** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLEAUT32.dll')
OleLoadPicture = Fiddle::Function.new(
  lib['OleLoadPicture'],
  [
    Fiddle::TYPE_VOIDP,  # lpstream : IStream*
    Fiddle::TYPE_INT,  # lSize : INT
    Fiddle::TYPE_INT,  # fRunmode : BOOL
    Fiddle::TYPE_VOIDP,  # riid : GUID*
    Fiddle::TYPE_VOIDP,  # lplpvObj : void** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "oleaut32")]
extern "system" {
    fn OleLoadPicture(
        lpstream: *mut core::ffi::c_void,  // IStream*
        lSize: i32,  // INT
        fRunmode: i32,  // BOOL
        riid: *const GUID,  // GUID*
        lplpvObj: *mut *mut ()  // void** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLEAUT32.dll")]
public static extern int OleLoadPicture(IntPtr lpstream, int lSize, bool fRunmode, ref Guid riid, IntPtr lplpvObj);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLEAUT32_OleLoadPicture' -Namespace Win32 -PassThru
# $api::OleLoadPicture(lpstream, lSize, fRunmode, riid, lplpvObj)

#uselib "OLEAUT32.dll"
#func global OleLoadPicture "OleLoadPicture" sptr, sptr, sptr, sptr, sptr
; OleLoadPicture lpstream, lSize, fRunmode, varptr(riid), lplpvObj   ; 戻り値は stat
; lpstream : IStream* -> "sptr"
; lSize : INT -> "sptr"
; fRunmode : BOOL -> "sptr"
; riid : GUID* -> "sptr"
; lplpvObj : void** 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 "OLEAUT32.dll"
#cfunc global OleLoadPicture "OleLoadPicture" sptr, int, int, var, sptr
; res = OleLoadPicture(lpstream, lSize, fRunmode, riid, lplpvObj)
; lpstream : IStream* -> "sptr"
; lSize : INT -> "int"
; fRunmode : BOOL -> "int"
; riid : GUID* -> "var"
; lplpvObj : void** 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 OleLoadPicture(IStream* lpstream, INT lSize, BOOL fRunmode, GUID* riid, void** lplpvObj)
#uselib "OLEAUT32.dll"
#cfunc global OleLoadPicture "OleLoadPicture" intptr, int, int, var, intptr
; res = OleLoadPicture(lpstream, lSize, fRunmode, riid, lplpvObj)
; lpstream : IStream* -> "intptr"
; lSize : INT -> "int"
; fRunmode : BOOL -> "int"
; riid : GUID* -> "var"
; lplpvObj : void** 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 (
	oleaut32 = windows.NewLazySystemDLL("OLEAUT32.dll")
	procOleLoadPicture = oleaut32.NewProc("OleLoadPicture")
)

// lpstream (IStream*), lSize (INT), fRunmode (BOOL), riid (GUID*), lplpvObj (void** out)
r1, _, err := procOleLoadPicture.Call(
	uintptr(lpstream),
	uintptr(lSize),
	uintptr(fRunmode),
	uintptr(riid),
	uintptr(lplpvObj),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function OleLoadPicture(
  lpstream: Pointer;   // IStream*
  lSize: Integer;   // INT
  fRunmode: BOOL;   // BOOL
  riid: PGUID;   // GUID*
  lplpvObj: Pointer   // void** out
): Integer; stdcall;
  external 'OLEAUT32.dll' name 'OleLoadPicture';

result := DllCall("OLEAUT32\OleLoadPicture"
    , "Ptr", lpstream   ; IStream*
    , "Int", lSize   ; INT
    , "Int", fRunmode   ; BOOL
    , "Ptr", riid   ; GUID*
    , "Ptr", lplpvObj   ; void** out
    , "Int")   ; return: HRESULT

●OleLoadPicture(lpstream, lSize, fRunmode, riid, lplpvObj) = DLL("OLEAUT32.dll", "int OleLoadPicture(void*, int, bool, void*, void*)")
# 呼び出し: OleLoadPicture(lpstream, lSize, fRunmode, riid, lplpvObj)
# lpstream : IStream* -> "void*"
# lSize : INT -> "int"
# fRunmode : BOOL -> "bool"
# riid : GUID* -> "void*"
# lplpvObj : void** 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)。