CreateFileW

// KERNEL32.dll  (Unicode / -W)
#include <windows.h>

HANDLE CreateFileW(
    LPCWSTR lpFileName,
    DWORD dwDesiredAccess,
    FILE_SHARE_MODE dwShareMode,
    SECURITY_ATTRIBUTES* lpSecurityAttributes,   // optional
    FILE_CREATION_DISPOSITION dwCreationDisposition,
    FILE_FLAGS_AND_ATTRIBUTES dwFlagsAndAttributes,
    HANDLE hTemplateFile   // optional
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CreateFileW(
    <MarshalAs(UnmanagedType.LPWStr)> lpFileName As String,   ' LPCWSTR
    dwDesiredAccess As UInteger,   ' DWORD
    dwShareMode As UInteger,   ' FILE_SHARE_MODE
    lpSecurityAttributes As IntPtr,   ' SECURITY_ATTRIBUTES* optional
    dwCreationDisposition As UInteger,   ' FILE_CREATION_DISPOSITION
    dwFlagsAndAttributes As UInteger,   ' FILE_FLAGS_AND_ATTRIBUTES
    hTemplateFile As IntPtr   ' HANDLE optional
) As IntPtr
End Function

' lpFileName : LPCWSTR
' dwDesiredAccess : DWORD
' dwShareMode : FILE_SHARE_MODE
' lpSecurityAttributes : SECURITY_ATTRIBUTES* optional
' dwCreationDisposition : FILE_CREATION_DISPOSITION
' dwFlagsAndAttributes : FILE_FLAGS_AND_ATTRIBUTES
' hTemplateFile : HANDLE optional
Declare PtrSafe Function CreateFileW Lib "kernel32" ( _
    ByVal lpFileName As LongPtr, _
    ByVal dwDesiredAccess As Long, _
    ByVal dwShareMode As Long, _
    ByVal lpSecurityAttributes As LongPtr, _
    ByVal dwCreationDisposition As Long, _
    ByVal dwFlagsAndAttributes As Long, _
    ByVal hTemplateFile As LongPtr) As LongPtr
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CreateFileW = ctypes.windll.kernel32.CreateFileW
CreateFileW.restype = ctypes.c_void_p
CreateFileW.argtypes = [
    wintypes.LPCWSTR,  # lpFileName : LPCWSTR
    wintypes.DWORD,  # dwDesiredAccess : DWORD
    wintypes.DWORD,  # dwShareMode : FILE_SHARE_MODE
    ctypes.c_void_p,  # lpSecurityAttributes : SECURITY_ATTRIBUTES* optional
    wintypes.DWORD,  # dwCreationDisposition : FILE_CREATION_DISPOSITION
    wintypes.DWORD,  # dwFlagsAndAttributes : FILE_FLAGS_AND_ATTRIBUTES
    wintypes.HANDLE,  # hTemplateFile : HANDLE optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
CreateFileW = Fiddle::Function.new(
  lib['CreateFileW'],
  [
    Fiddle::TYPE_VOIDP,  # lpFileName : LPCWSTR
    -Fiddle::TYPE_INT,  # dwDesiredAccess : DWORD
    -Fiddle::TYPE_INT,  # dwShareMode : FILE_SHARE_MODE
    Fiddle::TYPE_VOIDP,  # lpSecurityAttributes : SECURITY_ATTRIBUTES* optional
    -Fiddle::TYPE_INT,  # dwCreationDisposition : FILE_CREATION_DISPOSITION
    -Fiddle::TYPE_INT,  # dwFlagsAndAttributes : FILE_FLAGS_AND_ATTRIBUTES
    Fiddle::TYPE_VOIDP,  # hTemplateFile : HANDLE optional
  ],
  Fiddle::TYPE_VOIDP)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "kernel32")]
extern "system" {
    fn CreateFileW(
        lpFileName: *const u16,  // LPCWSTR
        dwDesiredAccess: u32,  // DWORD
        dwShareMode: u32,  // FILE_SHARE_MODE
        lpSecurityAttributes: *mut SECURITY_ATTRIBUTES,  // SECURITY_ATTRIBUTES* optional
        dwCreationDisposition: u32,  // FILE_CREATION_DISPOSITION
        dwFlagsAndAttributes: u32,  // FILE_FLAGS_AND_ATTRIBUTES
        hTemplateFile: *mut core::ffi::c_void  // HANDLE optional
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern IntPtr CreateFileW([MarshalAs(UnmanagedType.LPWStr)] string lpFileName, uint dwDesiredAccess, uint dwShareMode, IntPtr lpSecurityAttributes, uint dwCreationDisposition, uint dwFlagsAndAttributes, IntPtr hTemplateFile);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_CreateFileW' -Namespace Win32 -PassThru
# $api::CreateFileW(lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile)

#uselib "KERNEL32.dll"
#func global CreateFileW "CreateFileW" wptr, wptr, wptr, wptr, wptr, wptr, wptr
; CreateFileW lpFileName, dwDesiredAccess, dwShareMode, varptr(lpSecurityAttributes), dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile   ; 戻り値は stat
; lpFileName : LPCWSTR -> "wptr"
; dwDesiredAccess : DWORD -> "wptr"
; dwShareMode : FILE_SHARE_MODE -> "wptr"
; lpSecurityAttributes : SECURITY_ATTRIBUTES* optional -> "wptr"
; dwCreationDisposition : FILE_CREATION_DISPOSITION -> "wptr"
; dwFlagsAndAttributes : FILE_FLAGS_AND_ATTRIBUTES -> "wptr"
; hTemplateFile : HANDLE optional -> "wptr"
; ※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 (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procCreateFileW = kernel32.NewProc("CreateFileW")
)

// lpFileName (LPCWSTR), dwDesiredAccess (DWORD), dwShareMode (FILE_SHARE_MODE), lpSecurityAttributes (SECURITY_ATTRIBUTES* optional), dwCreationDisposition (FILE_CREATION_DISPOSITION), dwFlagsAndAttributes (FILE_FLAGS_AND_ATTRIBUTES), hTemplateFile (HANDLE optional)
r1, _, err := procCreateFileW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpFileName))),
	uintptr(dwDesiredAccess),
	uintptr(dwShareMode),
	uintptr(lpSecurityAttributes),
	uintptr(dwCreationDisposition),
	uintptr(dwFlagsAndAttributes),
	uintptr(hTemplateFile),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HANDLE

function CreateFileW(
  lpFileName: PWideChar;   // LPCWSTR
  dwDesiredAccess: DWORD;   // DWORD
  dwShareMode: DWORD;   // FILE_SHARE_MODE
  lpSecurityAttributes: Pointer;   // SECURITY_ATTRIBUTES* optional
  dwCreationDisposition: DWORD;   // FILE_CREATION_DISPOSITION
  dwFlagsAndAttributes: DWORD;   // FILE_FLAGS_AND_ATTRIBUTES
  hTemplateFile: THandle   // HANDLE optional
): THandle; stdcall;
  external 'KERNEL32.dll' name 'CreateFileW';

result := DllCall("KERNEL32\CreateFileW"
    , "WStr", lpFileName   ; LPCWSTR
    , "UInt", dwDesiredAccess   ; DWORD
    , "UInt", dwShareMode   ; FILE_SHARE_MODE
    , "Ptr", lpSecurityAttributes   ; SECURITY_ATTRIBUTES* optional
    , "UInt", dwCreationDisposition   ; FILE_CREATION_DISPOSITION
    , "UInt", dwFlagsAndAttributes   ; FILE_FLAGS_AND_ATTRIBUTES
    , "Ptr", hTemplateFile   ; HANDLE optional
    , "Ptr")   ; return: HANDLE

●CreateFileW(lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile) = DLL("KERNEL32.dll", "void* CreateFileW(char*, dword, dword, void*, dword, dword, void*)")
# 呼び出し: CreateFileW(lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile)
# lpFileName : LPCWSTR -> "char*"
# dwDesiredAccess : DWORD -> "dword"
# dwShareMode : FILE_SHARE_MODE -> "dword"
# lpSecurityAttributes : SECURITY_ATTRIBUTES* optional -> "void*"
# dwCreationDisposition : FILE_CREATION_DISPOSITION -> "dword"
# dwFlagsAndAttributes : FILE_FLAGS_AND_ATTRIBUTES -> "dword"
# hTemplateFile : HANDLE optional -> "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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。

const std = @import("std");

extern "kernel32" fn CreateFileW(
    lpFileName: [*c]const u16, // LPCWSTR
    dwDesiredAccess: u32, // DWORD
    dwShareMode: u32, // FILE_SHARE_MODE
    lpSecurityAttributes: [*c]SECURITY_ATTRIBUTES, // SECURITY_ATTRIBUTES* optional
    dwCreationDisposition: u32, // FILE_CREATION_DISPOSITION
    dwFlagsAndAttributes: u32, // FILE_FLAGS_AND_ATTRIBUTES
    hTemplateFile: ?*anyopaque // HANDLE optional
) callconv(std.os.windows.WINAPI) ?*anyopaque;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。

proc CreateFileW(
    lpFileName: WideCString,  # LPCWSTR
    dwDesiredAccess: uint32,  # DWORD
    dwShareMode: uint32,  # FILE_SHARE_MODE
    lpSecurityAttributes: ptr SECURITY_ATTRIBUTES,  # SECURITY_ATTRIBUTES* optional
    dwCreationDisposition: uint32,  # FILE_CREATION_DISPOSITION
    dwFlagsAndAttributes: uint32,  # FILE_FLAGS_AND_ATTRIBUTES
    hTemplateFile: pointer  # HANDLE optional
): pointer {.importc: "CreateFileW", stdcall, dynlib: "KERNEL32.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "kernel32");
extern(Windows)
void* CreateFileW(
    const(wchar)* lpFileName,   // LPCWSTR
    uint dwDesiredAccess,   // DWORD
    uint dwShareMode,   // FILE_SHARE_MODE
    SECURITY_ATTRIBUTES* lpSecurityAttributes,   // SECURITY_ATTRIBUTES* optional
    uint dwCreationDisposition,   // FILE_CREATION_DISPOSITION
    uint dwFlagsAndAttributes,   // FILE_FLAGS_AND_ATTRIBUTES
    void* hTemplateFile   // HANDLE optional
);

ccall((:CreateFileW, "KERNEL32.dll"), stdcall, Ptr{Cvoid},
      (Cwstring, UInt32, UInt32, Ptr{SECURITY_ATTRIBUTES}, UInt32, UInt32, Ptr{Cvoid}),
      lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile)
# lpFileName : LPCWSTR -> Cwstring
# dwDesiredAccess : DWORD -> UInt32
# dwShareMode : FILE_SHARE_MODE -> UInt32
# lpSecurityAttributes : SECURITY_ATTRIBUTES* optional -> Ptr{SECURITY_ATTRIBUTES}
# dwCreationDisposition : FILE_CREATION_DISPOSITION -> UInt32
# dwFlagsAndAttributes : FILE_FLAGS_AND_ATTRIBUTES -> UInt32
# hTemplateFile : HANDLE optional -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
# Unicode(-W): Cwstring には transcode(UInt16, "...") 等で UTF-16 を渡す。

local ffi = require("ffi")
ffi.cdef[[
void* CreateFileW(
    const uint16_t* lpFileName,
    uint32_t dwDesiredAccess,
    uint32_t dwShareMode,
    void* lpSecurityAttributes,
    uint32_t dwCreationDisposition,
    uint32_t dwFlagsAndAttributes,
    void* hTemplateFile);
]]
local kernel32 = ffi.load("kernel32")
-- kernel32.CreateFileW(lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile)
-- lpFileName : LPCWSTR
-- dwDesiredAccess : DWORD
-- dwShareMode : FILE_SHARE_MODE
-- lpSecurityAttributes : SECURITY_ATTRIBUTES* optional
-- dwCreationDisposition : FILE_CREATION_DISPOSITION
-- dwFlagsAndAttributes : FILE_FLAGS_AND_ATTRIBUTES
-- hTemplateFile : HANDLE optional
-- 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。
-- Unicode(-W): uint16_t* には UTF-16LE のバッファ(ffi.new("uint16_t[?]", ...))を渡す。

const koffi = require('koffi');
const lib = koffi.load('KERNEL32.dll');
const CreateFileW = lib.func('__stdcall', 'CreateFileW', 'void *', ['str16', 'uint32_t', 'uint32_t', 'void *', 'uint32_t', 'uint32_t', 'void *']);
// CreateFileW(lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile)
// lpFileName : LPCWSTR -> 'str16'
// dwDesiredAccess : DWORD -> 'uint32_t'
// dwShareMode : FILE_SHARE_MODE -> 'uint32_t'
// lpSecurityAttributes : SECURITY_ATTRIBUTES* optional -> 'void *'
// dwCreationDisposition : FILE_CREATION_DISPOSITION -> 'uint32_t'
// dwFlagsAndAttributes : FILE_FLAGS_AND_ATTRIBUTES -> 'uint32_t'
// hTemplateFile : HANDLE optional -> '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("KERNEL32.dll", {
  CreateFileW: { parameters: ["buffer", "u32", "u32", "pointer", "u32", "u32", "pointer"], result: "pointer" },
});
// lib.symbols.CreateFileW(lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile)
// lpFileName : LPCWSTR -> "buffer"
// dwDesiredAccess : DWORD -> "u32"
// dwShareMode : FILE_SHARE_MODE -> "u32"
// lpSecurityAttributes : SECURITY_ATTRIBUTES* optional -> "pointer"
// dwCreationDisposition : FILE_CREATION_DISPOSITION -> "u32"
// dwFlagsAndAttributes : FILE_FLAGS_AND_ATTRIBUTES -> "u32"
// hTemplateFile : HANDLE optional -> "pointer"
// 文字列は "buffer"。Unicode(-W) は new TextEncoder() ではなく UTF-16LE のバイト列(末尾に \x00\x00)を Uint8Array で渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
void* CreateFileW(
    const uint16_t* lpFileName,
    uint32_t dwDesiredAccess,
    uint32_t dwShareMode,
    void* lpSecurityAttributes,
    uint32_t dwCreationDisposition,
    uint32_t dwFlagsAndAttributes,
    void* hTemplateFile);
C, "KERNEL32.dll");
// $ffi->CreateFileW(lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile);
// lpFileName : LPCWSTR
// dwDesiredAccess : DWORD
// dwShareMode : FILE_SHARE_MODE
// lpSecurityAttributes : SECURITY_ATTRIBUTES* optional
// dwCreationDisposition : FILE_CREATION_DISPOSITION
// dwFlagsAndAttributes : FILE_FLAGS_AND_ATTRIBUTES
// hTemplateFile : HANDLE optional
// 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 Kernel32 extends StdCallLibrary {
    Kernel32 INSTANCE = Native.load("kernel32", Kernel32.class, W32APIOptions.UNICODE_OPTIONS);
    Pointer CreateFileW(
        WString lpFileName,   // LPCWSTR
        int dwDesiredAccess,   // DWORD
        int dwShareMode,   // FILE_SHARE_MODE
        Pointer lpSecurityAttributes,   // SECURITY_ATTRIBUTES* optional
        int dwCreationDisposition,   // FILE_CREATION_DISPOSITION
        int dwFlagsAndAttributes,   // FILE_FLAGS_AND_ATTRIBUTES
        Pointer hTemplateFile   // HANDLE optional
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("kernel32")]
lib LibKERNEL32
  fun CreateFileW = CreateFileW(
    lpFileName : UInt16*,   # LPCWSTR
    dwDesiredAccess : UInt32,   # DWORD
    dwShareMode : UInt32,   # FILE_SHARE_MODE
    lpSecurityAttributes : SECURITY_ATTRIBUTES*,   # SECURITY_ATTRIBUTES* optional
    dwCreationDisposition : UInt32,   # FILE_CREATION_DISPOSITION
    dwFlagsAndAttributes : UInt32,   # FILE_FLAGS_AND_ATTRIBUTES
    hTemplateFile : Void*   # HANDLE optional
  ) : Void*
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 CreateFileWNative = Pointer<Void> Function(Pointer<Utf16>, Uint32, Uint32, Pointer<Void>, Uint32, Uint32, Pointer<Void>);
typedef CreateFileWDart = Pointer<Void> Function(Pointer<Utf16>, int, int, Pointer<Void>, int, int, Pointer<Void>);
final CreateFileW = DynamicLibrary.open('KERNEL32.dll')
    .lookupFunction<CreateFileWNative, CreateFileWDart>('CreateFileW');
// lpFileName : LPCWSTR -> Pointer<Utf16>
// dwDesiredAccess : DWORD -> Uint32
// dwShareMode : FILE_SHARE_MODE -> Uint32
// lpSecurityAttributes : SECURITY_ATTRIBUTES* optional -> Pointer<Void>
// dwCreationDisposition : FILE_CREATION_DISPOSITION -> Uint32
// dwFlagsAndAttributes : FILE_FLAGS_AND_ATTRIBUTES -> Uint32
// hTemplateFile : HANDLE optional -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function CreateFileW(
  lpFileName: PWideChar;   // LPCWSTR
  dwDesiredAccess: DWORD;   // DWORD
  dwShareMode: DWORD;   // FILE_SHARE_MODE
  lpSecurityAttributes: Pointer;   // SECURITY_ATTRIBUTES* optional
  dwCreationDisposition: DWORD;   // FILE_CREATION_DISPOSITION
  dwFlagsAndAttributes: DWORD;   // FILE_FLAGS_AND_ATTRIBUTES
  hTemplateFile: THandle   // HANDLE optional
): THandle; stdcall;
  external 'KERNEL32.dll' name 'CreateFileW';

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

foreign import stdcall safe "CreateFileW"
  c_CreateFileW :: CWString -> Word32 -> Word32 -> Ptr () -> Word32 -> Word32 -> Ptr () -> IO (Ptr ())
-- lpFileName : LPCWSTR -> CWString
-- dwDesiredAccess : DWORD -> Word32
-- dwShareMode : FILE_SHARE_MODE -> Word32
-- lpSecurityAttributes : SECURITY_ATTRIBUTES* optional -> Ptr ()
-- dwCreationDisposition : FILE_CREATION_DISPOSITION -> Word32
-- dwFlagsAndAttributes : FILE_FLAGS_AND_ATTRIBUTES -> Word32
-- hTemplateFile : HANDLE optional -> 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 createfilew =
  foreign "CreateFileW"
    ((ptr uint16_t) @-> uint32_t @-> uint32_t @-> (ptr void) @-> uint32_t @-> uint32_t @-> (ptr void) @-> returning (ptr void))
(* lpFileName : LPCWSTR -> (ptr uint16_t) *)
(* dwDesiredAccess : DWORD -> uint32_t *)
(* dwShareMode : FILE_SHARE_MODE -> uint32_t *)
(* lpSecurityAttributes : SECURITY_ATTRIBUTES* optional -> (ptr void) *)
(* dwCreationDisposition : FILE_CREATION_DISPOSITION -> uint32_t *)
(* dwFlagsAndAttributes : FILE_FLAGS_AND_ATTRIBUTES -> uint32_t *)
(* hTemplateFile : HANDLE optional -> (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 kernel32 (t "KERNEL32.dll"))
(cffi:use-foreign-library kernel32)

(cffi:defcfun ("CreateFileW" create-file-w :convention :stdcall) :pointer
  (lp-file-name (:string :encoding :utf-16le))   ; LPCWSTR
  (dw-desired-access :uint32)   ; DWORD
  (dw-share-mode :uint32)   ; FILE_SHARE_MODE
  (lp-security-attributes :pointer)   ; SECURITY_ATTRIBUTES* optional
  (dw-creation-disposition :uint32)   ; FILE_CREATION_DISPOSITION
  (dw-flags-and-attributes :uint32)   ; FILE_FLAGS_AND_ATTRIBUTES
  (h-template-file :pointer))   ; HANDLE optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $CreateFileW = Win32::API::More->new('KERNEL32',
    'HANDLE CreateFileW(LPCWSTR lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPVOID lpSecurityAttributes, DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile)');
# my $ret = $CreateFileW->Call($lpFileName, $dwDesiredAccess, $dwShareMode, $lpSecurityAttributes, $dwCreationDisposition, $dwFlagsAndAttributes, $hTemplateFile);
# lpFileName : LPCWSTR -> LPCWSTR
# dwDesiredAccess : DWORD -> DWORD
# dwShareMode : FILE_SHARE_MODE -> DWORD
# lpSecurityAttributes : SECURITY_ATTRIBUTES* optional -> LPVOID
# dwCreationDisposition : FILE_CREATION_DISPOSITION -> DWORD
# dwFlagsAndAttributes : FILE_FLAGS_AND_ATTRIBUTES -> DWORD
# hTemplateFile : HANDLE optional -> HANDLE
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。
# Unicode(-W): LPCWSTR/LPWSTR は Win32::API が UTF-16 変換を行う。