VARIANT_UserUnmarshal

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

BYTE* VARIANT_UserUnmarshal(
    DWORD* param0,
    BYTE* param1,
    VARIANT* param2
);

<DllImport("OLEAUT32.dll", ExactSpelling:=True)>
Public Shared Function VARIANT_UserUnmarshal(
    ByRef param0 As UInteger,   ' DWORD*
    param1 As IntPtr,   ' BYTE*
    param2 As IntPtr   ' VARIANT* out
) As IntPtr
End Function

' param0 : DWORD*
' param1 : BYTE*
' param2 : VARIANT* out
Declare PtrSafe Function VARIANT_UserUnmarshal Lib "oleaut32" ( _
    ByRef param0 As Long, _
    ByVal param1 As LongPtr, _
    ByVal param2 As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

VARIANT_UserUnmarshal = ctypes.windll.oleaut32.VARIANT_UserUnmarshal
VARIANT_UserUnmarshal.restype = ctypes.c_void_p
VARIANT_UserUnmarshal.argtypes = [
    ctypes.POINTER(wintypes.DWORD),  # param0 : DWORD*
    ctypes.POINTER(ctypes.c_ubyte),  # param1 : BYTE*
    ctypes.c_void_p,  # param2 : VARIANT* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLEAUT32.dll')
VARIANT_UserUnmarshal = Fiddle::Function.new(
  lib['VARIANT_UserUnmarshal'],
  [
    Fiddle::TYPE_VOIDP,  # param0 : DWORD*
    Fiddle::TYPE_VOIDP,  # param1 : BYTE*
    Fiddle::TYPE_VOIDP,  # param2 : VARIANT* out
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "oleaut32")]
extern "system" {
    fn VARIANT_UserUnmarshal(
        param0: *mut u32,  // DWORD*
        param1: *mut u8,  // BYTE*
        param2: *mut VARIANT  // VARIANT* out
    ) -> *mut u8;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLEAUT32.dll")]
public static extern IntPtr VARIANT_UserUnmarshal(ref uint param0, IntPtr param1, IntPtr param2);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLEAUT32_VARIANT_UserUnmarshal' -Namespace Win32 -PassThru
# $api::VARIANT_UserUnmarshal(param0, param1, param2)

#uselib "OLEAUT32.dll"
#func global VARIANT_UserUnmarshal "VARIANT_UserUnmarshal" sptr, sptr, sptr
; VARIANT_UserUnmarshal varptr(param0), varptr(param1), varptr(param2)   ; 戻り値は stat
; param0 : DWORD* -> "sptr"
; param1 : BYTE* -> "sptr"
; param2 : VARIANT* 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 (
	oleaut32 = windows.NewLazySystemDLL("OLEAUT32.dll")
	procVARIANT_UserUnmarshal = oleaut32.NewProc("VARIANT_UserUnmarshal")
)

// param0 (DWORD*), param1 (BYTE*), param2 (VARIANT* out)
r1, _, err := procVARIANT_UserUnmarshal.Call(
	uintptr(param0),
	uintptr(param1),
	uintptr(param2),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BYTE*

function VARIANT_UserUnmarshal(
  param0: Pointer;   // DWORD*
  param1: Pointer;   // BYTE*
  param2: Pointer   // VARIANT* out
): Pointer; stdcall;
  external 'OLEAUT32.dll' name 'VARIANT_UserUnmarshal';

result := DllCall("OLEAUT32\VARIANT_UserUnmarshal"
    , "Ptr", param0   ; DWORD*
    , "Ptr", param1   ; BYTE*
    , "Ptr", param2   ; VARIANT* out
    , "Ptr")   ; return: BYTE*

●VARIANT_UserUnmarshal(param0, param1, param2) = DLL("OLEAUT32.dll", "void* VARIANT_UserUnmarshal(void*, void*, void*)")
# 呼び出し: VARIANT_UserUnmarshal(param0, param1, param2)
# param0 : DWORD* -> "void*"
# param1 : BYTE* -> "void*"
# param2 : VARIANT* 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 VARIANT_UserUnmarshal(
    param0: [*c]u32, // DWORD*
    param1: [*c]u8, // BYTE*
    param2: [*c]VARIANT // VARIANT* out
) callconv(std.os.windows.WINAPI) [*c]u8;

proc VARIANT_UserUnmarshal(
    param0: ptr uint32,  # DWORD*
    param1: ptr uint8,  # BYTE*
    param2: ptr VARIANT  # VARIANT* out
): ptr uint8 {.importc: "VARIANT_UserUnmarshal", stdcall, dynlib: "OLEAUT32.dll".}

pragma(lib, "oleaut32");
extern(Windows)
ubyte* VARIANT_UserUnmarshal(
    uint* param0,   // DWORD*
    ubyte* param1,   // BYTE*
    VARIANT* param2   // VARIANT* out
);

ccall((:VARIANT_UserUnmarshal, "OLEAUT32.dll"), stdcall, Ptr{UInt8},
      (Ptr{UInt32}, Ptr{UInt8}, Ptr{VARIANT}),
      param0, param1, param2)
# param0 : DWORD* -> Ptr{UInt32}
# param1 : BYTE* -> Ptr{UInt8}
# param2 : VARIANT* out -> Ptr{VARIANT}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint8_t* VARIANT_UserUnmarshal(
    uint32_t* param0,
    uint8_t* param1,
    void* param2);
]]
local oleaut32 = ffi.load("oleaut32")
-- oleaut32.VARIANT_UserUnmarshal(param0, param1, param2)
-- param0 : DWORD*
-- param1 : BYTE*
-- param2 : VARIANT* 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 VARIANT_UserUnmarshal = lib.func('__stdcall', 'VARIANT_UserUnmarshal', 'uint8_t *', ['uint32_t *', 'uint8_t *', 'void *']);
// VARIANT_UserUnmarshal(param0, param1, param2)
// param0 : DWORD* -> 'uint32_t *'
// param1 : BYTE* -> 'uint8_t *'
// param2 : VARIANT* 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", {
  VARIANT_UserUnmarshal: { parameters: ["pointer", "pointer", "pointer"], result: "pointer" },
});
// lib.symbols.VARIANT_UserUnmarshal(param0, param1, param2)
// param0 : DWORD* -> "pointer"
// param1 : BYTE* -> "pointer"
// param2 : VARIANT* 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
uint8_t* VARIANT_UserUnmarshal(
    uint32_t* param0,
    uint8_t* param1,
    void* param2);
C, "OLEAUT32.dll");
// $ffi->VARIANT_UserUnmarshal(param0, param1, param2);
// param0 : DWORD*
// param1 : BYTE*
// param2 : VARIANT* 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);
    Pointer VARIANT_UserUnmarshal(
        IntByReference param0,   // DWORD*
        byte[] param1,   // BYTE*
        Pointer param2   // VARIANT* out
    );
}

@[Link("oleaut32")]
lib LibOLEAUT32
  fun VARIANT_UserUnmarshal = VARIANT_UserUnmarshal(
    param0 : UInt32*,   # DWORD*
    param1 : UInt8*,   # BYTE*
    param2 : VARIANT*   # VARIANT* out
  ) : UInt8*
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 VARIANT_UserUnmarshalNative = Pointer<Uint8> Function(Pointer<Uint32>, Pointer<Uint8>, Pointer<Void>);
typedef VARIANT_UserUnmarshalDart = Pointer<Uint8> Function(Pointer<Uint32>, Pointer<Uint8>, Pointer<Void>);
final VARIANT_UserUnmarshal = DynamicLibrary.open('OLEAUT32.dll')
    .lookupFunction<VARIANT_UserUnmarshalNative, VARIANT_UserUnmarshalDart>('VARIANT_UserUnmarshal');
// param0 : DWORD* -> Pointer<Uint32>
// param1 : BYTE* -> Pointer<Uint8>
// param2 : VARIANT* out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function VARIANT_UserUnmarshal(
  param0: Pointer;   // DWORD*
  param1: Pointer;   // BYTE*
  param2: Pointer   // VARIANT* out
): Pointer; stdcall;
  external 'OLEAUT32.dll' name 'VARIANT_UserUnmarshal';

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

foreign import stdcall safe "VARIANT_UserUnmarshal"
  c_VARIANT_UserUnmarshal :: Ptr Word32 -> Ptr Word8 -> Ptr () -> IO (Ptr Word8)
-- param0 : DWORD* -> Ptr Word32
-- param1 : BYTE* -> Ptr Word8
-- param2 : VARIANT* 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 variant_userunmarshal =
  foreign "VARIANT_UserUnmarshal"
    ((ptr uint32_t) @-> (ptr uint8_t) @-> (ptr void) @-> returning (ptr uint8_t))
(* param0 : DWORD* -> (ptr uint32_t) *)
(* param1 : BYTE* -> (ptr uint8_t) *)
(* param2 : VARIANT* 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 ("VARIANT_UserUnmarshal" variant-user-unmarshal :convention :stdcall) :pointer
  (param0 :pointer)   ; DWORD*
  (param1 :pointer)   ; BYTE*
  (param2 :pointer))   ; VARIANT* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $VARIANT_UserUnmarshal = Win32::API::More->new('OLEAUT32',
    'LPVOID VARIANT_UserUnmarshal(LPVOID param0, LPVOID param1, LPVOID param2)');
# my $ret = $VARIANT_UserUnmarshal->Call($param0, $param1, $param2);
# param0 : DWORD* -> LPVOID
# param1 : BYTE* -> LPVOID
# param2 : VARIANT* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。