WebAuthNAuthenticatorGetAssertion

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

HRESULT WebAuthNAuthenticatorGetAssertion(
    HWND hWnd,
    LPCWSTR pwszRpId,
    WEBAUTHN_CLIENT_DATA* pWebAuthNClientData,
    WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* pWebAuthNGetAssertionOptions,   // optional
    WEBAUTHN_ASSERTION** ppWebAuthNAssertion
);

<DllImport("webauthn.dll", ExactSpelling:=True)>
Public Shared Function WebAuthNAuthenticatorGetAssertion(
    hWnd As IntPtr,   ' HWND
    <MarshalAs(UnmanagedType.LPWStr)> pwszRpId As String,   ' LPCWSTR
    pWebAuthNClientData As IntPtr,   ' WEBAUTHN_CLIENT_DATA*
    pWebAuthNGetAssertionOptions As IntPtr,   ' WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional
    ppWebAuthNAssertion As IntPtr   ' WEBAUTHN_ASSERTION** out
) As Integer
End Function

' hWnd : HWND
' pwszRpId : LPCWSTR
' pWebAuthNClientData : WEBAUTHN_CLIENT_DATA*
' pWebAuthNGetAssertionOptions : WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional
' ppWebAuthNAssertion : WEBAUTHN_ASSERTION** out
Declare PtrSafe Function WebAuthNAuthenticatorGetAssertion Lib "webauthn" ( _
    ByVal hWnd As LongPtr, _
    ByVal pwszRpId As LongPtr, _
    ByVal pWebAuthNClientData As LongPtr, _
    ByVal pWebAuthNGetAssertionOptions As LongPtr, _
    ByVal ppWebAuthNAssertion 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

WebAuthNAuthenticatorGetAssertion = ctypes.windll.webauthn.WebAuthNAuthenticatorGetAssertion
WebAuthNAuthenticatorGetAssertion.restype = ctypes.c_int
WebAuthNAuthenticatorGetAssertion.argtypes = [
    wintypes.HANDLE,  # hWnd : HWND
    wintypes.LPCWSTR,  # pwszRpId : LPCWSTR
    ctypes.c_void_p,  # pWebAuthNClientData : WEBAUTHN_CLIENT_DATA*
    ctypes.c_void_p,  # pWebAuthNGetAssertionOptions : WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional
    ctypes.c_void_p,  # ppWebAuthNAssertion : WEBAUTHN_ASSERTION** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('webauthn.dll')
WebAuthNAuthenticatorGetAssertion = Fiddle::Function.new(
  lib['WebAuthNAuthenticatorGetAssertion'],
  [
    Fiddle::TYPE_VOIDP,  # hWnd : HWND
    Fiddle::TYPE_VOIDP,  # pwszRpId : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pWebAuthNClientData : WEBAUTHN_CLIENT_DATA*
    Fiddle::TYPE_VOIDP,  # pWebAuthNGetAssertionOptions : WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional
    Fiddle::TYPE_VOIDP,  # ppWebAuthNAssertion : WEBAUTHN_ASSERTION** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "webauthn")]
extern "system" {
    fn WebAuthNAuthenticatorGetAssertion(
        hWnd: *mut core::ffi::c_void,  // HWND
        pwszRpId: *const u16,  // LPCWSTR
        pWebAuthNClientData: *mut WEBAUTHN_CLIENT_DATA,  // WEBAUTHN_CLIENT_DATA*
        pWebAuthNGetAssertionOptions: *mut WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS,  // WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional
        ppWebAuthNAssertion: *mut *mut WEBAUTHN_ASSERTION  // WEBAUTHN_ASSERTION** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("webauthn.dll")]
public static extern int WebAuthNAuthenticatorGetAssertion(IntPtr hWnd, [MarshalAs(UnmanagedType.LPWStr)] string pwszRpId, IntPtr pWebAuthNClientData, IntPtr pWebAuthNGetAssertionOptions, IntPtr ppWebAuthNAssertion);
"@
$api = Add-Type -MemberDefinition $sig -Name 'webauthn_WebAuthNAuthenticatorGetAssertion' -Namespace Win32 -PassThru
# $api::WebAuthNAuthenticatorGetAssertion(hWnd, pwszRpId, pWebAuthNClientData, pWebAuthNGetAssertionOptions, ppWebAuthNAssertion)

#uselib "webauthn.dll"
#func global WebAuthNAuthenticatorGetAssertion "WebAuthNAuthenticatorGetAssertion" sptr, sptr, sptr, sptr, sptr
; WebAuthNAuthenticatorGetAssertion hWnd, pwszRpId, varptr(pWebAuthNClientData), varptr(pWebAuthNGetAssertionOptions), varptr(ppWebAuthNAssertion)   ; 戻り値は stat
; hWnd : HWND -> "sptr"
; pwszRpId : LPCWSTR -> "sptr"
; pWebAuthNClientData : WEBAUTHN_CLIENT_DATA* -> "sptr"
; pWebAuthNGetAssertionOptions : WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional -> "sptr"
; ppWebAuthNAssertion : WEBAUTHN_ASSERTION** 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 (
	webauthn = windows.NewLazySystemDLL("webauthn.dll")
	procWebAuthNAuthenticatorGetAssertion = webauthn.NewProc("WebAuthNAuthenticatorGetAssertion")
)

// hWnd (HWND), pwszRpId (LPCWSTR), pWebAuthNClientData (WEBAUTHN_CLIENT_DATA*), pWebAuthNGetAssertionOptions (WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional), ppWebAuthNAssertion (WEBAUTHN_ASSERTION** out)
r1, _, err := procWebAuthNAuthenticatorGetAssertion.Call(
	uintptr(hWnd),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pwszRpId))),
	uintptr(pWebAuthNClientData),
	uintptr(pWebAuthNGetAssertionOptions),
	uintptr(ppWebAuthNAssertion),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function WebAuthNAuthenticatorGetAssertion(
  hWnd: THandle;   // HWND
  pwszRpId: PWideChar;   // LPCWSTR
  pWebAuthNClientData: Pointer;   // WEBAUTHN_CLIENT_DATA*
  pWebAuthNGetAssertionOptions: Pointer;   // WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional
  ppWebAuthNAssertion: Pointer   // WEBAUTHN_ASSERTION** out
): Integer; stdcall;
  external 'webauthn.dll' name 'WebAuthNAuthenticatorGetAssertion';

result := DllCall("webauthn\WebAuthNAuthenticatorGetAssertion"
    , "Ptr", hWnd   ; HWND
    , "WStr", pwszRpId   ; LPCWSTR
    , "Ptr", pWebAuthNClientData   ; WEBAUTHN_CLIENT_DATA*
    , "Ptr", pWebAuthNGetAssertionOptions   ; WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional
    , "Ptr", ppWebAuthNAssertion   ; WEBAUTHN_ASSERTION** out
    , "Int")   ; return: HRESULT

●WebAuthNAuthenticatorGetAssertion(hWnd, pwszRpId, pWebAuthNClientData, pWebAuthNGetAssertionOptions, ppWebAuthNAssertion) = DLL("webauthn.dll", "int WebAuthNAuthenticatorGetAssertion(void*, char*, void*, void*, void*)")
# 呼び出し: WebAuthNAuthenticatorGetAssertion(hWnd, pwszRpId, pWebAuthNClientData, pWebAuthNGetAssertionOptions, ppWebAuthNAssertion)
# hWnd : HWND -> "void*"
# pwszRpId : LPCWSTR -> "char*"
# pWebAuthNClientData : WEBAUTHN_CLIENT_DATA* -> "void*"
# pWebAuthNGetAssertionOptions : WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional -> "void*"
# ppWebAuthNAssertion : WEBAUTHN_ASSERTION** 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 "webauthn" fn WebAuthNAuthenticatorGetAssertion(
    hWnd: ?*anyopaque, // HWND
    pwszRpId: [*c]const u16, // LPCWSTR
    pWebAuthNClientData: [*c]WEBAUTHN_CLIENT_DATA, // WEBAUTHN_CLIENT_DATA*
    pWebAuthNGetAssertionOptions: [*c]WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS, // WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional
    ppWebAuthNAssertion: [*c][*c]WEBAUTHN_ASSERTION // WEBAUTHN_ASSERTION** out
) callconv(std.os.windows.WINAPI) i32;

proc WebAuthNAuthenticatorGetAssertion(
    hWnd: pointer,  # HWND
    pwszRpId: WideCString,  # LPCWSTR
    pWebAuthNClientData: ptr WEBAUTHN_CLIENT_DATA,  # WEBAUTHN_CLIENT_DATA*
    pWebAuthNGetAssertionOptions: ptr WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS,  # WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional
    ppWebAuthNAssertion: ptr WEBAUTHN_ASSERTION  # WEBAUTHN_ASSERTION** out
): int32 {.importc: "WebAuthNAuthenticatorGetAssertion", stdcall, dynlib: "webauthn.dll".}

pragma(lib, "webauthn");
extern(Windows)
int WebAuthNAuthenticatorGetAssertion(
    void* hWnd,   // HWND
    const(wchar)* pwszRpId,   // LPCWSTR
    WEBAUTHN_CLIENT_DATA* pWebAuthNClientData,   // WEBAUTHN_CLIENT_DATA*
    WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* pWebAuthNGetAssertionOptions,   // WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional
    WEBAUTHN_ASSERTION** ppWebAuthNAssertion   // WEBAUTHN_ASSERTION** out
);

ccall((:WebAuthNAuthenticatorGetAssertion, "webauthn.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Cwstring, Ptr{WEBAUTHN_CLIENT_DATA}, Ptr{WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS}, Ptr{WEBAUTHN_ASSERTION}),
      hWnd, pwszRpId, pWebAuthNClientData, pWebAuthNGetAssertionOptions, ppWebAuthNAssertion)
# hWnd : HWND -> Ptr{Cvoid}
# pwszRpId : LPCWSTR -> Cwstring
# pWebAuthNClientData : WEBAUTHN_CLIENT_DATA* -> Ptr{WEBAUTHN_CLIENT_DATA}
# pWebAuthNGetAssertionOptions : WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional -> Ptr{WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS}
# ppWebAuthNAssertion : WEBAUTHN_ASSERTION** out -> Ptr{WEBAUTHN_ASSERTION}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t WebAuthNAuthenticatorGetAssertion(
    void* hWnd,
    const uint16_t* pwszRpId,
    void* pWebAuthNClientData,
    void* pWebAuthNGetAssertionOptions,
    void* ppWebAuthNAssertion);
]]
local webauthn = ffi.load("webauthn")
-- webauthn.WebAuthNAuthenticatorGetAssertion(hWnd, pwszRpId, pWebAuthNClientData, pWebAuthNGetAssertionOptions, ppWebAuthNAssertion)
-- hWnd : HWND
-- pwszRpId : LPCWSTR
-- pWebAuthNClientData : WEBAUTHN_CLIENT_DATA*
-- pWebAuthNGetAssertionOptions : WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional
-- ppWebAuthNAssertion : WEBAUTHN_ASSERTION** 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('webauthn.dll');
const WebAuthNAuthenticatorGetAssertion = lib.func('__stdcall', 'WebAuthNAuthenticatorGetAssertion', 'int32_t', ['void *', 'str16', 'void *', 'void *', 'void *']);
// WebAuthNAuthenticatorGetAssertion(hWnd, pwszRpId, pWebAuthNClientData, pWebAuthNGetAssertionOptions, ppWebAuthNAssertion)
// hWnd : HWND -> 'void *'
// pwszRpId : LPCWSTR -> 'str16'
// pWebAuthNClientData : WEBAUTHN_CLIENT_DATA* -> 'void *'
// pWebAuthNGetAssertionOptions : WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional -> 'void *'
// ppWebAuthNAssertion : WEBAUTHN_ASSERTION** 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("webauthn.dll", {
  WebAuthNAuthenticatorGetAssertion: { parameters: ["pointer", "buffer", "pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.WebAuthNAuthenticatorGetAssertion(hWnd, pwszRpId, pWebAuthNClientData, pWebAuthNGetAssertionOptions, ppWebAuthNAssertion)
// hWnd : HWND -> "pointer"
// pwszRpId : LPCWSTR -> "buffer"
// pWebAuthNClientData : WEBAUTHN_CLIENT_DATA* -> "pointer"
// pWebAuthNGetAssertionOptions : WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional -> "pointer"
// ppWebAuthNAssertion : WEBAUTHN_ASSERTION** 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 WebAuthNAuthenticatorGetAssertion(
    void* hWnd,
    const uint16_t* pwszRpId,
    void* pWebAuthNClientData,
    void* pWebAuthNGetAssertionOptions,
    void* ppWebAuthNAssertion);
C, "webauthn.dll");
// $ffi->WebAuthNAuthenticatorGetAssertion(hWnd, pwszRpId, pWebAuthNClientData, pWebAuthNGetAssertionOptions, ppWebAuthNAssertion);
// hWnd : HWND
// pwszRpId : LPCWSTR
// pWebAuthNClientData : WEBAUTHN_CLIENT_DATA*
// pWebAuthNGetAssertionOptions : WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional
// ppWebAuthNAssertion : WEBAUTHN_ASSERTION** 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 Webauthn extends StdCallLibrary {
    Webauthn INSTANCE = Native.load("webauthn", Webauthn.class);
    int WebAuthNAuthenticatorGetAssertion(
        Pointer hWnd,   // HWND
        WString pwszRpId,   // LPCWSTR
        Pointer pWebAuthNClientData,   // WEBAUTHN_CLIENT_DATA*
        Pointer pWebAuthNGetAssertionOptions,   // WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional
        Pointer ppWebAuthNAssertion   // WEBAUTHN_ASSERTION** out
    );
}

@[Link("webauthn")]
lib Libwebauthn
  fun WebAuthNAuthenticatorGetAssertion = WebAuthNAuthenticatorGetAssertion(
    hWnd : Void*,   # HWND
    pwszRpId : UInt16*,   # LPCWSTR
    pWebAuthNClientData : WEBAUTHN_CLIENT_DATA*,   # WEBAUTHN_CLIENT_DATA*
    pWebAuthNGetAssertionOptions : WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS*,   # WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional
    ppWebAuthNAssertion : WEBAUTHN_ASSERTION**   # WEBAUTHN_ASSERTION** 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 WebAuthNAuthenticatorGetAssertionNative = Int32 Function(Pointer<Void>, Pointer<Utf16>, Pointer<Void>, Pointer<Void>, Pointer<Void>);
typedef WebAuthNAuthenticatorGetAssertionDart = int Function(Pointer<Void>, Pointer<Utf16>, Pointer<Void>, Pointer<Void>, Pointer<Void>);
final WebAuthNAuthenticatorGetAssertion = DynamicLibrary.open('webauthn.dll')
    .lookupFunction<WebAuthNAuthenticatorGetAssertionNative, WebAuthNAuthenticatorGetAssertionDart>('WebAuthNAuthenticatorGetAssertion');
// hWnd : HWND -> Pointer<Void>
// pwszRpId : LPCWSTR -> Pointer<Utf16>
// pWebAuthNClientData : WEBAUTHN_CLIENT_DATA* -> Pointer<Void>
// pWebAuthNGetAssertionOptions : WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional -> Pointer<Void>
// ppWebAuthNAssertion : WEBAUTHN_ASSERTION** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function WebAuthNAuthenticatorGetAssertion(
  hWnd: THandle;   // HWND
  pwszRpId: PWideChar;   // LPCWSTR
  pWebAuthNClientData: Pointer;   // WEBAUTHN_CLIENT_DATA*
  pWebAuthNGetAssertionOptions: Pointer;   // WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional
  ppWebAuthNAssertion: Pointer   // WEBAUTHN_ASSERTION** out
): Integer; stdcall;
  external 'webauthn.dll' name 'WebAuthNAuthenticatorGetAssertion';

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

foreign import stdcall safe "WebAuthNAuthenticatorGetAssertion"
  c_WebAuthNAuthenticatorGetAssertion :: Ptr () -> CWString -> Ptr () -> Ptr () -> Ptr () -> IO Int32
-- hWnd : HWND -> Ptr ()
-- pwszRpId : LPCWSTR -> CWString
-- pWebAuthNClientData : WEBAUTHN_CLIENT_DATA* -> Ptr ()
-- pWebAuthNGetAssertionOptions : WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional -> Ptr ()
-- ppWebAuthNAssertion : WEBAUTHN_ASSERTION** 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 webauthnauthenticatorgetassertion =
  foreign "WebAuthNAuthenticatorGetAssertion"
    ((ptr void) @-> (ptr uint16_t) @-> (ptr void) @-> (ptr void) @-> (ptr void) @-> returning int32_t)
(* hWnd : HWND -> (ptr void) *)
(* pwszRpId : LPCWSTR -> (ptr uint16_t) *)
(* pWebAuthNClientData : WEBAUTHN_CLIENT_DATA* -> (ptr void) *)
(* pWebAuthNGetAssertionOptions : WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional -> (ptr void) *)
(* ppWebAuthNAssertion : WEBAUTHN_ASSERTION** 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 webauthn (t "webauthn.dll"))
(cffi:use-foreign-library webauthn)

(cffi:defcfun ("WebAuthNAuthenticatorGetAssertion" web-auth-nauthenticator-get-assertion :convention :stdcall) :int32
  (h-wnd :pointer)   ; HWND
  (pwsz-rp-id (:string :encoding :utf-16le))   ; LPCWSTR
  (p-web-auth-nclient-data :pointer)   ; WEBAUTHN_CLIENT_DATA*
  (p-web-auth-nget-assertion-options :pointer)   ; WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional
  (pp-web-auth-nassertion :pointer))   ; WEBAUTHN_ASSERTION** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $WebAuthNAuthenticatorGetAssertion = Win32::API::More->new('webauthn',
    'int WebAuthNAuthenticatorGetAssertion(HANDLE hWnd, LPCWSTR pwszRpId, LPVOID pWebAuthNClientData, LPVOID pWebAuthNGetAssertionOptions, LPVOID ppWebAuthNAssertion)');
# my $ret = $WebAuthNAuthenticatorGetAssertion->Call($hWnd, $pwszRpId, $pWebAuthNClientData, $pWebAuthNGetAssertionOptions, $ppWebAuthNAssertion);
# hWnd : HWND -> HANDLE
# pwszRpId : LPCWSTR -> LPCWSTR
# pWebAuthNClientData : WEBAUTHN_CLIENT_DATA* -> LPVOID
# pWebAuthNGetAssertionOptions : WEBAUTHN_AUTHENTICATOR_GET_ASSERTION_OPTIONS* optional -> LPVOID
# ppWebAuthNAssertion : WEBAUTHN_ASSERTION** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。