OleLoadPictureFileEx

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

HRESULT OleLoadPictureFileEx(
    VARIANT varFileName,
    DWORD xSizeDesired,
    DWORD ySizeDesired,
    LOAD_PICTURE_FLAGS dwFlags,
    IDispatch** lplpdispPicture
);

<DllImport("OLEAUT32.dll", ExactSpelling:=True)>
Public Shared Function OleLoadPictureFileEx(
    varFileName As VARIANT,   ' VARIANT
    xSizeDesired As UInteger,   ' DWORD
    ySizeDesired As UInteger,   ' DWORD
    dwFlags As UInteger,   ' LOAD_PICTURE_FLAGS
    lplpdispPicture As IntPtr   ' IDispatch** out
) As Integer
End Function

' varFileName : VARIANT
' xSizeDesired : DWORD
' ySizeDesired : DWORD
' dwFlags : LOAD_PICTURE_FLAGS
' lplpdispPicture : IDispatch** out
Declare PtrSafe Function OleLoadPictureFileEx Lib "oleaut32" ( _
    ByVal varFileName As LongPtr, _
    ByVal xSizeDesired As Long, _
    ByVal ySizeDesired As Long, _
    ByVal dwFlags As Long, _
    ByVal lplpdispPicture 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

OleLoadPictureFileEx = ctypes.windll.oleaut32.OleLoadPictureFileEx
OleLoadPictureFileEx.restype = ctypes.c_int
OleLoadPictureFileEx.argtypes = [
    VARIANT,  # varFileName : VARIANT
    wintypes.DWORD,  # xSizeDesired : DWORD
    wintypes.DWORD,  # ySizeDesired : DWORD
    wintypes.DWORD,  # dwFlags : LOAD_PICTURE_FLAGS
    ctypes.c_void_p,  # lplpdispPicture : IDispatch** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLEAUT32.dll')
OleLoadPictureFileEx = Fiddle::Function.new(
  lib['OleLoadPictureFileEx'],
  [
    Fiddle::TYPE_VOIDP,  # varFileName : VARIANT
    -Fiddle::TYPE_INT,  # xSizeDesired : DWORD
    -Fiddle::TYPE_INT,  # ySizeDesired : DWORD
    -Fiddle::TYPE_INT,  # dwFlags : LOAD_PICTURE_FLAGS
    Fiddle::TYPE_VOIDP,  # lplpdispPicture : IDispatch** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "oleaut32")]
extern "system" {
    fn OleLoadPictureFileEx(
        varFileName: VARIANT,  // VARIANT
        xSizeDesired: u32,  // DWORD
        ySizeDesired: u32,  // DWORD
        dwFlags: u32,  // LOAD_PICTURE_FLAGS
        lplpdispPicture: *mut *mut core::ffi::c_void  // IDispatch** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLEAUT32.dll")]
public static extern int OleLoadPictureFileEx(VARIANT varFileName, uint xSizeDesired, uint ySizeDesired, uint dwFlags, IntPtr lplpdispPicture);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLEAUT32_OleLoadPictureFileEx' -Namespace Win32 -PassThru
# $api::OleLoadPictureFileEx(varFileName, xSizeDesired, ySizeDesired, dwFlags, lplpdispPicture)

#uselib "OLEAUT32.dll"
#func global OleLoadPictureFileEx "OleLoadPictureFileEx" sptr, sptr, sptr, sptr, sptr
; OleLoadPictureFileEx varFileName, xSizeDesired, ySizeDesired, dwFlags, lplpdispPicture   ; 戻り値は stat
; varFileName : VARIANT -> "sptr"
; xSizeDesired : DWORD -> "sptr"
; ySizeDesired : DWORD -> "sptr"
; dwFlags : LOAD_PICTURE_FLAGS -> "sptr"
; lplpdispPicture : IDispatch** out -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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 OleLoadPictureFileEx "OleLoadPictureFileEx" int, int, int, int, sptr
; res = OleLoadPictureFileEx(varFileName, xSizeDesired, ySizeDesired, dwFlags, lplpdispPicture)
; varFileName : VARIANT -> "int"
; xSizeDesired : DWORD -> "int"
; ySizeDesired : DWORD -> "int"
; dwFlags : LOAD_PICTURE_FLAGS -> "int"
; lplpdispPicture : IDispatch** out -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。

; HRESULT OleLoadPictureFileEx(VARIANT varFileName, DWORD xSizeDesired, DWORD ySizeDesired, LOAD_PICTURE_FLAGS dwFlags, IDispatch** lplpdispPicture)
#uselib "OLEAUT32.dll"
#cfunc global OleLoadPictureFileEx "OleLoadPictureFileEx" int, int, int, int, intptr
; res = OleLoadPictureFileEx(varFileName, xSizeDesired, ySizeDesired, dwFlags, lplpdispPicture)
; varFileName : VARIANT -> "int"
; xSizeDesired : DWORD -> "int"
; ySizeDesired : DWORD -> "int"
; dwFlags : LOAD_PICTURE_FLAGS -> "int"
; lplpdispPicture : IDispatch** out -> "intptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。

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

var (
	oleaut32 = windows.NewLazySystemDLL("OLEAUT32.dll")
	procOleLoadPictureFileEx = oleaut32.NewProc("OleLoadPictureFileEx")
)

// varFileName (VARIANT), xSizeDesired (DWORD), ySizeDesired (DWORD), dwFlags (LOAD_PICTURE_FLAGS), lplpdispPicture (IDispatch** out)
r1, _, err := procOleLoadPictureFileEx.Call(
	uintptr(varFileName),
	uintptr(xSizeDesired),
	uintptr(ySizeDesired),
	uintptr(dwFlags),
	uintptr(lplpdispPicture),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function OleLoadPictureFileEx(
  varFileName: VARIANT;   // VARIANT
  xSizeDesired: DWORD;   // DWORD
  ySizeDesired: DWORD;   // DWORD
  dwFlags: DWORD;   // LOAD_PICTURE_FLAGS
  lplpdispPicture: Pointer   // IDispatch** out
): Integer; stdcall;
  external 'OLEAUT32.dll' name 'OleLoadPictureFileEx';

result := DllCall("OLEAUT32\OleLoadPictureFileEx"
    , "Ptr", varFileName   ; VARIANT
    , "UInt", xSizeDesired   ; DWORD
    , "UInt", ySizeDesired   ; DWORD
    , "UInt", dwFlags   ; LOAD_PICTURE_FLAGS
    , "Ptr", lplpdispPicture   ; IDispatch** out
    , "Int")   ; return: HRESULT

●OleLoadPictureFileEx(varFileName, xSizeDesired, ySizeDesired, dwFlags, lplpdispPicture) = DLL("OLEAUT32.dll", "int OleLoadPictureFileEx(void*, dword, dword, dword, void*)")
# 呼び出し: OleLoadPictureFileEx(varFileName, xSizeDesired, ySizeDesired, dwFlags, lplpdispPicture)
# varFileName : VARIANT -> "void*"
# xSizeDesired : DWORD -> "dword"
# ySizeDesired : DWORD -> "dword"
# dwFlags : LOAD_PICTURE_FLAGS -> "dword"
# lplpdispPicture : IDispatch** 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 "oleaut32" fn OleLoadPictureFileEx(
    varFileName: VARIANT, // VARIANT
    xSizeDesired: u32, // DWORD
    ySizeDesired: u32, // DWORD
    dwFlags: u32, // LOAD_PICTURE_FLAGS
    lplpdispPicture: ?*anyopaque // IDispatch** out
) callconv(std.os.windows.WINAPI) i32;

proc OleLoadPictureFileEx(
    varFileName: VARIANT,  # VARIANT
    xSizeDesired: uint32,  # DWORD
    ySizeDesired: uint32,  # DWORD
    dwFlags: uint32,  # LOAD_PICTURE_FLAGS
    lplpdispPicture: pointer  # IDispatch** out
): int32 {.importc: "OleLoadPictureFileEx", stdcall, dynlib: "OLEAUT32.dll".}

pragma(lib, "oleaut32");
extern(Windows)
int OleLoadPictureFileEx(
    VARIANT varFileName,   // VARIANT
    uint xSizeDesired,   // DWORD
    uint ySizeDesired,   // DWORD
    uint dwFlags,   // LOAD_PICTURE_FLAGS
    void* lplpdispPicture   // IDispatch** out
);

ccall((:OleLoadPictureFileEx, "OLEAUT32.dll"), stdcall, Int32,
      (VARIANT, UInt32, UInt32, UInt32, Ptr{Cvoid}),
      varFileName, xSizeDesired, ySizeDesired, dwFlags, lplpdispPicture)
# varFileName : VARIANT -> VARIANT
# xSizeDesired : DWORD -> UInt32
# ySizeDesired : DWORD -> UInt32
# dwFlags : LOAD_PICTURE_FLAGS -> UInt32
# lplpdispPicture : IDispatch** 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 OleLoadPictureFileEx(
    VARIANT varFileName,
    uint32_t xSizeDesired,
    uint32_t ySizeDesired,
    uint32_t dwFlags,
    void* lplpdispPicture);
]]
local oleaut32 = ffi.load("oleaut32")
-- oleaut32.OleLoadPictureFileEx(varFileName, xSizeDesired, ySizeDesired, dwFlags, lplpdispPicture)
-- varFileName : VARIANT
-- xSizeDesired : DWORD
-- ySizeDesired : DWORD
-- dwFlags : LOAD_PICTURE_FLAGS
-- lplpdispPicture : IDispatch** 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('OLEAUT32.dll');
const OleLoadPictureFileEx = lib.func('__stdcall', 'OleLoadPictureFileEx', 'int32_t', ['VARIANT', 'uint32_t', 'uint32_t', 'uint32_t', 'void *']);
// OleLoadPictureFileEx(varFileName, xSizeDesired, ySizeDesired, dwFlags, lplpdispPicture)
// varFileName : VARIANT -> 'VARIANT'
// xSizeDesired : DWORD -> 'uint32_t'
// ySizeDesired : DWORD -> 'uint32_t'
// dwFlags : LOAD_PICTURE_FLAGS -> 'uint32_t'
// lplpdispPicture : IDispatch** 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("OLEAUT32.dll", {
  OleLoadPictureFileEx: { parameters: ["buffer", "u32", "u32", "u32", "pointer"], result: "i32" },
});
// lib.symbols.OleLoadPictureFileEx(varFileName, xSizeDesired, ySizeDesired, dwFlags, lplpdispPicture)
// varFileName : VARIANT -> "buffer"
// xSizeDesired : DWORD -> "u32"
// ySizeDesired : DWORD -> "u32"
// dwFlags : LOAD_PICTURE_FLAGS -> "u32"
// lplpdispPicture : IDispatch** 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 OleLoadPictureFileEx(
    VARIANT varFileName,
    uint32_t xSizeDesired,
    uint32_t ySizeDesired,
    uint32_t dwFlags,
    void* lplpdispPicture);
C, "OLEAUT32.dll");
// $ffi->OleLoadPictureFileEx(varFileName, xSizeDesired, ySizeDesired, dwFlags, lplpdispPicture);
// varFileName : VARIANT
// xSizeDesired : DWORD
// ySizeDesired : DWORD
// dwFlags : LOAD_PICTURE_FLAGS
// lplpdispPicture : IDispatch** 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 Oleaut32 extends StdCallLibrary {
    Oleaut32 INSTANCE = Native.load("oleaut32", Oleaut32.class);
    int OleLoadPictureFileEx(
        VARIANT /* extends Structure (by value) */ varFileName,   // VARIANT
        int xSizeDesired,   // DWORD
        int ySizeDesired,   // DWORD
        int dwFlags,   // LOAD_PICTURE_FLAGS
        Pointer lplpdispPicture   // IDispatch** out
    );
}

@[Link("oleaut32")]
lib LibOLEAUT32
  fun OleLoadPictureFileEx = OleLoadPictureFileEx(
    varFileName : VARIANT,   # VARIANT
    xSizeDesired : UInt32,   # DWORD
    ySizeDesired : UInt32,   # DWORD
    dwFlags : UInt32,   # LOAD_PICTURE_FLAGS
    lplpdispPicture : Void*   # IDispatch** 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 OleLoadPictureFileExNative = Int32 Function(VARIANT, Uint32, Uint32, Uint32, Pointer<Void>);
typedef OleLoadPictureFileExDart = int Function(int, int, int, int, Pointer<Void>);
final OleLoadPictureFileEx = DynamicLibrary.open('OLEAUT32.dll')
    .lookupFunction<OleLoadPictureFileExNative, OleLoadPictureFileExDart>('OleLoadPictureFileEx');
// varFileName : VARIANT -> VARIANT
// xSizeDesired : DWORD -> Uint32
// ySizeDesired : DWORD -> Uint32
// dwFlags : LOAD_PICTURE_FLAGS -> Uint32
// lplpdispPicture : IDispatch** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function OleLoadPictureFileEx(
  varFileName: VARIANT;   // VARIANT
  xSizeDesired: DWORD;   // DWORD
  ySizeDesired: DWORD;   // DWORD
  dwFlags: DWORD;   // LOAD_PICTURE_FLAGS
  lplpdispPicture: Pointer   // IDispatch** out
): Integer; stdcall;
  external 'OLEAUT32.dll' name 'OleLoadPictureFileEx';

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

foreign import stdcall safe "OleLoadPictureFileEx"
  c_OleLoadPictureFileEx :: VARIANT -> Word32 -> Word32 -> Word32 -> Ptr () -> IO Int32
-- varFileName : VARIANT -> VARIANT
-- xSizeDesired : DWORD -> Word32
-- ySizeDesired : DWORD -> Word32
-- dwFlags : LOAD_PICTURE_FLAGS -> Word32
-- lplpdispPicture : IDispatch** 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。
-- ※値渡し構造体は GHC FFI で直接渡せません。Ptr で渡すラッパ(C側)経由にしてください。

open Ctypes
open Foreign

let oleloadpicturefileex =
  foreign "OleLoadPictureFileEx"
    (VARIANT @-> uint32_t @-> uint32_t @-> uint32_t @-> (ptr void) @-> returning int32_t)
(* varFileName : VARIANT -> VARIANT *)
(* xSizeDesired : DWORD -> uint32_t *)
(* ySizeDesired : DWORD -> uint32_t *)
(* dwFlags : LOAD_PICTURE_FLAGS -> uint32_t *)
(* lplpdispPicture : IDispatch** 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 oleaut32 (t "OLEAUT32.dll"))
(cffi:use-foreign-library oleaut32)

(cffi:defcfun ("OleLoadPictureFileEx" ole-load-picture-file-ex :convention :stdcall) :int32
  (var-file-name (:struct variant))   ; VARIANT
  (x-size-desired :uint32)   ; DWORD
  (y-size-desired :uint32)   ; DWORD
  (dw-flags :uint32)   ; LOAD_PICTURE_FLAGS
  (lplpdisp-picture :pointer))   ; IDispatch** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $OleLoadPictureFileEx = Win32::API::More->new('OLEAUT32',
    'int OleLoadPictureFileEx(LPVOID varFileName, DWORD xSizeDesired, DWORD ySizeDesired, DWORD dwFlags, LPVOID lplpdispPicture)');
# my $ret = $OleLoadPictureFileEx->Call($varFileName, $xSizeDesired, $ySizeDesired, $dwFlags, $lplpdispPicture);
# varFileName : VARIANT -> LPVOID
# xSizeDesired : DWORD -> DWORD
# ySizeDesired : DWORD -> DWORD
# dwFlags : LOAD_PICTURE_FLAGS -> DWORD
# lplpdispPicture : IDispatch** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。