TransparentBlt

// MSIMG32.dll
#include <windows.h>

BOOL TransparentBlt(
    HDC hdcDest,
    INT xoriginDest,
    INT yoriginDest,
    INT wDest,
    INT hDest,
    HDC hdcSrc,
    INT xoriginSrc,
    INT yoriginSrc,
    INT wSrc,
    INT hSrc,
    DWORD crTransparent
);

<DllImport("MSIMG32.dll", ExactSpelling:=True)>
Public Shared Function TransparentBlt(
    hdcDest As IntPtr,   ' HDC
    xoriginDest As Integer,   ' INT
    yoriginDest As Integer,   ' INT
    wDest As Integer,   ' INT
    hDest As Integer,   ' INT
    hdcSrc As IntPtr,   ' HDC
    xoriginSrc As Integer,   ' INT
    yoriginSrc As Integer,   ' INT
    wSrc As Integer,   ' INT
    hSrc As Integer,   ' INT
    crTransparent As UInteger   ' DWORD
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' hdcDest : HDC
' xoriginDest : INT
' yoriginDest : INT
' wDest : INT
' hDest : INT
' hdcSrc : HDC
' xoriginSrc : INT
' yoriginSrc : INT
' wSrc : INT
' hSrc : INT
' crTransparent : DWORD
Declare PtrSafe Function TransparentBlt Lib "msimg32" ( _
    ByVal hdcDest As LongPtr, _
    ByVal xoriginDest As Long, _
    ByVal yoriginDest As Long, _
    ByVal wDest As Long, _
    ByVal hDest As Long, _
    ByVal hdcSrc As LongPtr, _
    ByVal xoriginSrc As Long, _
    ByVal yoriginSrc As Long, _
    ByVal wSrc As Long, _
    ByVal hSrc As Long, _
    ByVal crTransparent As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

TransparentBlt = ctypes.windll.msimg32.TransparentBlt
TransparentBlt.restype = wintypes.BOOL
TransparentBlt.argtypes = [
    wintypes.HANDLE,  # hdcDest : HDC
    ctypes.c_int,  # xoriginDest : INT
    ctypes.c_int,  # yoriginDest : INT
    ctypes.c_int,  # wDest : INT
    ctypes.c_int,  # hDest : INT
    wintypes.HANDLE,  # hdcSrc : HDC
    ctypes.c_int,  # xoriginSrc : INT
    ctypes.c_int,  # yoriginSrc : INT
    ctypes.c_int,  # wSrc : INT
    ctypes.c_int,  # hSrc : INT
    wintypes.DWORD,  # crTransparent : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MSIMG32.dll')
TransparentBlt = Fiddle::Function.new(
  lib['TransparentBlt'],
  [
    Fiddle::TYPE_VOIDP,  # hdcDest : HDC
    Fiddle::TYPE_INT,  # xoriginDest : INT
    Fiddle::TYPE_INT,  # yoriginDest : INT
    Fiddle::TYPE_INT,  # wDest : INT
    Fiddle::TYPE_INT,  # hDest : INT
    Fiddle::TYPE_VOIDP,  # hdcSrc : HDC
    Fiddle::TYPE_INT,  # xoriginSrc : INT
    Fiddle::TYPE_INT,  # yoriginSrc : INT
    Fiddle::TYPE_INT,  # wSrc : INT
    Fiddle::TYPE_INT,  # hSrc : INT
    -Fiddle::TYPE_INT,  # crTransparent : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "msimg32")]
extern "system" {
    fn TransparentBlt(
        hdcDest: *mut core::ffi::c_void,  // HDC
        xoriginDest: i32,  // INT
        yoriginDest: i32,  // INT
        wDest: i32,  // INT
        hDest: i32,  // INT
        hdcSrc: *mut core::ffi::c_void,  // HDC
        xoriginSrc: i32,  // INT
        yoriginSrc: i32,  // INT
        wSrc: i32,  // INT
        hSrc: i32,  // INT
        crTransparent: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("MSIMG32.dll")]
public static extern bool TransparentBlt(IntPtr hdcDest, int xoriginDest, int yoriginDest, int wDest, int hDest, IntPtr hdcSrc, int xoriginSrc, int yoriginSrc, int wSrc, int hSrc, uint crTransparent);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MSIMG32_TransparentBlt' -Namespace Win32 -PassThru
# $api::TransparentBlt(hdcDest, xoriginDest, yoriginDest, wDest, hDest, hdcSrc, xoriginSrc, yoriginSrc, wSrc, hSrc, crTransparent)

#uselib "MSIMG32.dll"
#func global TransparentBlt "TransparentBlt" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; TransparentBlt hdcDest, xoriginDest, yoriginDest, wDest, hDest, hdcSrc, xoriginSrc, yoriginSrc, wSrc, hSrc, crTransparent   ; 戻り値は stat
; hdcDest : HDC -> "sptr"
; xoriginDest : INT -> "sptr"
; yoriginDest : INT -> "sptr"
; wDest : INT -> "sptr"
; hDest : INT -> "sptr"
; hdcSrc : HDC -> "sptr"
; xoriginSrc : INT -> "sptr"
; yoriginSrc : INT -> "sptr"
; wSrc : INT -> "sptr"
; hSrc : INT -> "sptr"
; crTransparent : DWORD -> "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 "MSIMG32.dll"
#cfunc global TransparentBlt "TransparentBlt" sptr, int, int, int, int, sptr, int, int, int, int, int
; res = TransparentBlt(hdcDest, xoriginDest, yoriginDest, wDest, hDest, hdcSrc, xoriginSrc, yoriginSrc, wSrc, hSrc, crTransparent)
; hdcDest : HDC -> "sptr"
; xoriginDest : INT -> "int"
; yoriginDest : INT -> "int"
; wDest : INT -> "int"
; hDest : INT -> "int"
; hdcSrc : HDC -> "sptr"
; xoriginSrc : INT -> "int"
; yoriginSrc : INT -> "int"
; wSrc : INT -> "int"
; hSrc : INT -> "int"
; crTransparent : DWORD -> "int"

; BOOL TransparentBlt(HDC hdcDest, INT xoriginDest, INT yoriginDest, INT wDest, INT hDest, HDC hdcSrc, INT xoriginSrc, INT yoriginSrc, INT wSrc, INT hSrc, DWORD crTransparent)
#uselib "MSIMG32.dll"
#cfunc global TransparentBlt "TransparentBlt" intptr, int, int, int, int, intptr, int, int, int, int, int
; res = TransparentBlt(hdcDest, xoriginDest, yoriginDest, wDest, hDest, hdcSrc, xoriginSrc, yoriginSrc, wSrc, hSrc, crTransparent)
; hdcDest : HDC -> "intptr"
; xoriginDest : INT -> "int"
; yoriginDest : INT -> "int"
; wDest : INT -> "int"
; hDest : INT -> "int"
; hdcSrc : HDC -> "intptr"
; xoriginSrc : INT -> "int"
; yoriginSrc : INT -> "int"
; wSrc : INT -> "int"
; hSrc : INT -> "int"
; crTransparent : DWORD -> "int"

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

var (
	msimg32 = windows.NewLazySystemDLL("MSIMG32.dll")
	procTransparentBlt = msimg32.NewProc("TransparentBlt")
)

// hdcDest (HDC), xoriginDest (INT), yoriginDest (INT), wDest (INT), hDest (INT), hdcSrc (HDC), xoriginSrc (INT), yoriginSrc (INT), wSrc (INT), hSrc (INT), crTransparent (DWORD)
r1, _, err := procTransparentBlt.Call(
	uintptr(hdcDest),
	uintptr(xoriginDest),
	uintptr(yoriginDest),
	uintptr(wDest),
	uintptr(hDest),
	uintptr(hdcSrc),
	uintptr(xoriginSrc),
	uintptr(yoriginSrc),
	uintptr(wSrc),
	uintptr(hSrc),
	uintptr(crTransparent),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function TransparentBlt(
  hdcDest: THandle;   // HDC
  xoriginDest: Integer;   // INT
  yoriginDest: Integer;   // INT
  wDest: Integer;   // INT
  hDest: Integer;   // INT
  hdcSrc: THandle;   // HDC
  xoriginSrc: Integer;   // INT
  yoriginSrc: Integer;   // INT
  wSrc: Integer;   // INT
  hSrc: Integer;   // INT
  crTransparent: DWORD   // DWORD
): BOOL; stdcall;
  external 'MSIMG32.dll' name 'TransparentBlt';

result := DllCall("MSIMG32\TransparentBlt"
    , "Ptr", hdcDest   ; HDC
    , "Int", xoriginDest   ; INT
    , "Int", yoriginDest   ; INT
    , "Int", wDest   ; INT
    , "Int", hDest   ; INT
    , "Ptr", hdcSrc   ; HDC
    , "Int", xoriginSrc   ; INT
    , "Int", yoriginSrc   ; INT
    , "Int", wSrc   ; INT
    , "Int", hSrc   ; INT
    , "UInt", crTransparent   ; DWORD
    , "Int")   ; return: BOOL

●TransparentBlt(hdcDest, xoriginDest, yoriginDest, wDest, hDest, hdcSrc, xoriginSrc, yoriginSrc, wSrc, hSrc, crTransparent) = DLL("MSIMG32.dll", "bool TransparentBlt(void*, int, int, int, int, void*, int, int, int, int, dword)")
# 呼び出し: TransparentBlt(hdcDest, xoriginDest, yoriginDest, wDest, hDest, hdcSrc, xoriginSrc, yoriginSrc, wSrc, hSrc, crTransparent)
# hdcDest : HDC -> "void*"
# xoriginDest : INT -> "int"
# yoriginDest : INT -> "int"
# wDest : INT -> "int"
# hDest : INT -> "int"
# hdcSrc : HDC -> "void*"
# xoriginSrc : INT -> "int"
# yoriginSrc : INT -> "int"
# wSrc : INT -> "int"
# hSrc : INT -> "int"
# crTransparent : DWORD -> "dword"
# 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 "msimg32" fn TransparentBlt(
    hdcDest: ?*anyopaque, // HDC
    xoriginDest: i32, // INT
    yoriginDest: i32, // INT
    wDest: i32, // INT
    hDest: i32, // INT
    hdcSrc: ?*anyopaque, // HDC
    xoriginSrc: i32, // INT
    yoriginSrc: i32, // INT
    wSrc: i32, // INT
    hSrc: i32, // INT
    crTransparent: u32 // DWORD
) callconv(std.os.windows.WINAPI) i32;

proc TransparentBlt(
    hdcDest: pointer,  # HDC
    xoriginDest: int32,  # INT
    yoriginDest: int32,  # INT
    wDest: int32,  # INT
    hDest: int32,  # INT
    hdcSrc: pointer,  # HDC
    xoriginSrc: int32,  # INT
    yoriginSrc: int32,  # INT
    wSrc: int32,  # INT
    hSrc: int32,  # INT
    crTransparent: uint32  # DWORD
): int32 {.importc: "TransparentBlt", stdcall, dynlib: "MSIMG32.dll".}

pragma(lib, "msimg32");
extern(Windows)
int TransparentBlt(
    void* hdcDest,   // HDC
    int xoriginDest,   // INT
    int yoriginDest,   // INT
    int wDest,   // INT
    int hDest,   // INT
    void* hdcSrc,   // HDC
    int xoriginSrc,   // INT
    int yoriginSrc,   // INT
    int wSrc,   // INT
    int hSrc,   // INT
    uint crTransparent   // DWORD
);

ccall((:TransparentBlt, "MSIMG32.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Int32, Int32, Int32, Int32, Ptr{Cvoid}, Int32, Int32, Int32, Int32, UInt32),
      hdcDest, xoriginDest, yoriginDest, wDest, hDest, hdcSrc, xoriginSrc, yoriginSrc, wSrc, hSrc, crTransparent)
# hdcDest : HDC -> Ptr{Cvoid}
# xoriginDest : INT -> Int32
# yoriginDest : INT -> Int32
# wDest : INT -> Int32
# hDest : INT -> Int32
# hdcSrc : HDC -> Ptr{Cvoid}
# xoriginSrc : INT -> Int32
# yoriginSrc : INT -> Int32
# wSrc : INT -> Int32
# hSrc : INT -> Int32
# crTransparent : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t TransparentBlt(
    void* hdcDest,
    int32_t xoriginDest,
    int32_t yoriginDest,
    int32_t wDest,
    int32_t hDest,
    void* hdcSrc,
    int32_t xoriginSrc,
    int32_t yoriginSrc,
    int32_t wSrc,
    int32_t hSrc,
    uint32_t crTransparent);
]]
local msimg32 = ffi.load("msimg32")
-- msimg32.TransparentBlt(hdcDest, xoriginDest, yoriginDest, wDest, hDest, hdcSrc, xoriginSrc, yoriginSrc, wSrc, hSrc, crTransparent)
-- hdcDest : HDC
-- xoriginDest : INT
-- yoriginDest : INT
-- wDest : INT
-- hDest : INT
-- hdcSrc : HDC
-- xoriginSrc : INT
-- yoriginSrc : INT
-- wSrc : INT
-- hSrc : INT
-- crTransparent : DWORD
-- 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('MSIMG32.dll');
const TransparentBlt = lib.func('__stdcall', 'TransparentBlt', 'int32_t', ['void *', 'int32_t', 'int32_t', 'int32_t', 'int32_t', 'void *', 'int32_t', 'int32_t', 'int32_t', 'int32_t', 'uint32_t']);
// TransparentBlt(hdcDest, xoriginDest, yoriginDest, wDest, hDest, hdcSrc, xoriginSrc, yoriginSrc, wSrc, hSrc, crTransparent)
// hdcDest : HDC -> 'void *'
// xoriginDest : INT -> 'int32_t'
// yoriginDest : INT -> 'int32_t'
// wDest : INT -> 'int32_t'
// hDest : INT -> 'int32_t'
// hdcSrc : HDC -> 'void *'
// xoriginSrc : INT -> 'int32_t'
// yoriginSrc : INT -> 'int32_t'
// wSrc : INT -> 'int32_t'
// hSrc : INT -> 'int32_t'
// crTransparent : DWORD -> 'uint32_t'
// 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("MSIMG32.dll", {
  TransparentBlt: { parameters: ["pointer", "i32", "i32", "i32", "i32", "pointer", "i32", "i32", "i32", "i32", "u32"], result: "i32" },
});
// lib.symbols.TransparentBlt(hdcDest, xoriginDest, yoriginDest, wDest, hDest, hdcSrc, xoriginSrc, yoriginSrc, wSrc, hSrc, crTransparent)
// hdcDest : HDC -> "pointer"
// xoriginDest : INT -> "i32"
// yoriginDest : INT -> "i32"
// wDest : INT -> "i32"
// hDest : INT -> "i32"
// hdcSrc : HDC -> "pointer"
// xoriginSrc : INT -> "i32"
// yoriginSrc : INT -> "i32"
// wSrc : INT -> "i32"
// hSrc : INT -> "i32"
// crTransparent : DWORD -> "u32"
// 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 TransparentBlt(
    void* hdcDest,
    int32_t xoriginDest,
    int32_t yoriginDest,
    int32_t wDest,
    int32_t hDest,
    void* hdcSrc,
    int32_t xoriginSrc,
    int32_t yoriginSrc,
    int32_t wSrc,
    int32_t hSrc,
    uint32_t crTransparent);
C, "MSIMG32.dll");
// $ffi->TransparentBlt(hdcDest, xoriginDest, yoriginDest, wDest, hDest, hdcSrc, xoriginSrc, yoriginSrc, wSrc, hSrc, crTransparent);
// hdcDest : HDC
// xoriginDest : INT
// yoriginDest : INT
// wDest : INT
// hDest : INT
// hdcSrc : HDC
// xoriginSrc : INT
// yoriginSrc : INT
// wSrc : INT
// hSrc : INT
// crTransparent : DWORD
// 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 Msimg32 extends StdCallLibrary {
    Msimg32 INSTANCE = Native.load("msimg32", Msimg32.class);
    boolean TransparentBlt(
        Pointer hdcDest,   // HDC
        int xoriginDest,   // INT
        int yoriginDest,   // INT
        int wDest,   // INT
        int hDest,   // INT
        Pointer hdcSrc,   // HDC
        int xoriginSrc,   // INT
        int yoriginSrc,   // INT
        int wSrc,   // INT
        int hSrc,   // INT
        int crTransparent   // DWORD
    );
}

@[Link("msimg32")]
lib LibMSIMG32
  fun TransparentBlt = TransparentBlt(
    hdcDest : Void*,   # HDC
    xoriginDest : Int32,   # INT
    yoriginDest : Int32,   # INT
    wDest : Int32,   # INT
    hDest : Int32,   # INT
    hdcSrc : Void*,   # HDC
    xoriginSrc : Int32,   # INT
    yoriginSrc : Int32,   # INT
    wSrc : Int32,   # INT
    hSrc : Int32,   # INT
    crTransparent : UInt32   # DWORD
  ) : 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 TransparentBltNative = Int32 Function(Pointer<Void>, Int32, Int32, Int32, Int32, Pointer<Void>, Int32, Int32, Int32, Int32, Uint32);
typedef TransparentBltDart = int Function(Pointer<Void>, int, int, int, int, Pointer<Void>, int, int, int, int, int);
final TransparentBlt = DynamicLibrary.open('MSIMG32.dll')
    .lookupFunction<TransparentBltNative, TransparentBltDart>('TransparentBlt');
// hdcDest : HDC -> Pointer<Void>
// xoriginDest : INT -> Int32
// yoriginDest : INT -> Int32
// wDest : INT -> Int32
// hDest : INT -> Int32
// hdcSrc : HDC -> Pointer<Void>
// xoriginSrc : INT -> Int32
// yoriginSrc : INT -> Int32
// wSrc : INT -> Int32
// hSrc : INT -> Int32
// crTransparent : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function TransparentBlt(
  hdcDest: THandle;   // HDC
  xoriginDest: Integer;   // INT
  yoriginDest: Integer;   // INT
  wDest: Integer;   // INT
  hDest: Integer;   // INT
  hdcSrc: THandle;   // HDC
  xoriginSrc: Integer;   // INT
  yoriginSrc: Integer;   // INT
  wSrc: Integer;   // INT
  hSrc: Integer;   // INT
  crTransparent: DWORD   // DWORD
): BOOL; stdcall;
  external 'MSIMG32.dll' name 'TransparentBlt';

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

foreign import stdcall safe "TransparentBlt"
  c_TransparentBlt :: Ptr () -> Int32 -> Int32 -> Int32 -> Int32 -> Ptr () -> Int32 -> Int32 -> Int32 -> Int32 -> Word32 -> IO CInt
-- hdcDest : HDC -> Ptr ()
-- xoriginDest : INT -> Int32
-- yoriginDest : INT -> Int32
-- wDest : INT -> Int32
-- hDest : INT -> Int32
-- hdcSrc : HDC -> Ptr ()
-- xoriginSrc : INT -> Int32
-- yoriginSrc : INT -> Int32
-- wSrc : INT -> Int32
-- hSrc : INT -> Int32
-- crTransparent : DWORD -> Word32
-- 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 transparentblt =
  foreign "TransparentBlt"
    ((ptr void) @-> int32_t @-> int32_t @-> int32_t @-> int32_t @-> (ptr void) @-> int32_t @-> int32_t @-> int32_t @-> int32_t @-> uint32_t @-> returning int32_t)
(* hdcDest : HDC -> (ptr void) *)
(* xoriginDest : INT -> int32_t *)
(* yoriginDest : INT -> int32_t *)
(* wDest : INT -> int32_t *)
(* hDest : INT -> int32_t *)
(* hdcSrc : HDC -> (ptr void) *)
(* xoriginSrc : INT -> int32_t *)
(* yoriginSrc : INT -> int32_t *)
(* wSrc : INT -> int32_t *)
(* hSrc : INT -> int32_t *)
(* crTransparent : DWORD -> uint32_t *)
(* 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 msimg32 (t "MSIMG32.dll"))
(cffi:use-foreign-library msimg32)

(cffi:defcfun ("TransparentBlt" transparent-blt :convention :stdcall) :int32
  (hdc-dest :pointer)   ; HDC
  (xorigin-dest :int32)   ; INT
  (yorigin-dest :int32)   ; INT
  (w-dest :int32)   ; INT
  (h-dest :int32)   ; INT
  (hdc-src :pointer)   ; HDC
  (xorigin-src :int32)   ; INT
  (yorigin-src :int32)   ; INT
  (w-src :int32)   ; INT
  (h-src :int32)   ; INT
  (cr-transparent :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $TransparentBlt = Win32::API::More->new('MSIMG32',
    'BOOL TransparentBlt(HANDLE hdcDest, int xoriginDest, int yoriginDest, int wDest, int hDest, HANDLE hdcSrc, int xoriginSrc, int yoriginSrc, int wSrc, int hSrc, DWORD crTransparent)');
# my $ret = $TransparentBlt->Call($hdcDest, $xoriginDest, $yoriginDest, $wDest, $hDest, $hdcSrc, $xoriginSrc, $yoriginSrc, $wSrc, $hSrc, $crTransparent);
# hdcDest : HDC -> HANDLE
# xoriginDest : INT -> int
# yoriginDest : INT -> int
# wDest : INT -> int
# hDest : INT -> int
# hdcSrc : HDC -> HANDLE
# xoriginSrc : INT -> int
# yoriginSrc : INT -> int
# wSrc : INT -> int
# hSrc : INT -> int
# crTransparent : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。