CopyFileExW

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

BOOL CopyFileExW(
    LPCWSTR lpExistingFileName,
    LPCWSTR lpNewFileName,
    LPPROGRESS_ROUTINE lpProgressRoutine,   // optional
    void* lpData,   // optional
    BOOL* pbCancel,   // optional
    COPYFILE_FLAGS dwCopyFlags
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CopyFileExW(
    <MarshalAs(UnmanagedType.LPWStr)> lpExistingFileName As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> lpNewFileName As String,   ' LPCWSTR
    lpProgressRoutine As IntPtr,   ' LPPROGRESS_ROUTINE optional
    lpData As IntPtr,   ' void* optional
    pbCancel As IntPtr,   ' BOOL* optional, in/out
    dwCopyFlags As UInteger   ' COPYFILE_FLAGS
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' lpExistingFileName : LPCWSTR
' lpNewFileName : LPCWSTR
' lpProgressRoutine : LPPROGRESS_ROUTINE optional
' lpData : void* optional
' pbCancel : BOOL* optional, in/out
' dwCopyFlags : COPYFILE_FLAGS
Declare PtrSafe Function CopyFileExW Lib "kernel32" ( _
    ByVal lpExistingFileName As LongPtr, _
    ByVal lpNewFileName As LongPtr, _
    ByVal lpProgressRoutine As LongPtr, _
    ByVal lpData As LongPtr, _
    ByVal pbCancel As LongPtr, _
    ByVal dwCopyFlags As Long) As Long
' 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

CopyFileExW = ctypes.windll.kernel32.CopyFileExW
CopyFileExW.restype = wintypes.BOOL
CopyFileExW.argtypes = [
    wintypes.LPCWSTR,  # lpExistingFileName : LPCWSTR
    wintypes.LPCWSTR,  # lpNewFileName : LPCWSTR
    ctypes.c_void_p,  # lpProgressRoutine : LPPROGRESS_ROUTINE optional
    ctypes.POINTER(None),  # lpData : void* optional
    ctypes.c_void_p,  # pbCancel : BOOL* optional, in/out
    wintypes.DWORD,  # dwCopyFlags : COPYFILE_FLAGS
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
CopyFileExW = Fiddle::Function.new(
  lib['CopyFileExW'],
  [
    Fiddle::TYPE_VOIDP,  # lpExistingFileName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpNewFileName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpProgressRoutine : LPPROGRESS_ROUTINE optional
    Fiddle::TYPE_VOIDP,  # lpData : void* optional
    Fiddle::TYPE_VOIDP,  # pbCancel : BOOL* optional, in/out
    -Fiddle::TYPE_INT,  # dwCopyFlags : COPYFILE_FLAGS
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "kernel32")]
extern "system" {
    fn CopyFileExW(
        lpExistingFileName: *const u16,  // LPCWSTR
        lpNewFileName: *const u16,  // LPCWSTR
        lpProgressRoutine: *const core::ffi::c_void,  // LPPROGRESS_ROUTINE optional
        lpData: *mut (),  // void* optional
        pbCancel: *mut i32,  // BOOL* optional, in/out
        dwCopyFlags: u32  // COPYFILE_FLAGS
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern bool CopyFileExW([MarshalAs(UnmanagedType.LPWStr)] string lpExistingFileName, [MarshalAs(UnmanagedType.LPWStr)] string lpNewFileName, IntPtr lpProgressRoutine, IntPtr lpData, IntPtr pbCancel, uint dwCopyFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_CopyFileExW' -Namespace Win32 -PassThru
# $api::CopyFileExW(lpExistingFileName, lpNewFileName, lpProgressRoutine, lpData, pbCancel, dwCopyFlags)

#uselib "KERNEL32.dll"
#func global CopyFileExW "CopyFileExW" wptr, wptr, wptr, wptr, wptr, wptr
; CopyFileExW lpExistingFileName, lpNewFileName, lpProgressRoutine, lpData, varptr(pbCancel), dwCopyFlags   ; 戻り値は stat
; lpExistingFileName : LPCWSTR -> "wptr"
; lpNewFileName : LPCWSTR -> "wptr"
; lpProgressRoutine : LPPROGRESS_ROUTINE optional -> "wptr"
; lpData : void* optional -> "wptr"
; pbCancel : BOOL* optional, in/out -> "wptr"
; dwCopyFlags : COPYFILE_FLAGS -> "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")
	procCopyFileExW = kernel32.NewProc("CopyFileExW")
)

// lpExistingFileName (LPCWSTR), lpNewFileName (LPCWSTR), lpProgressRoutine (LPPROGRESS_ROUTINE optional), lpData (void* optional), pbCancel (BOOL* optional, in/out), dwCopyFlags (COPYFILE_FLAGS)
r1, _, err := procCopyFileExW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpExistingFileName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpNewFileName))),
	uintptr(lpProgressRoutine),
	uintptr(lpData),
	uintptr(pbCancel),
	uintptr(dwCopyFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CopyFileExW(
  lpExistingFileName: PWideChar;   // LPCWSTR
  lpNewFileName: PWideChar;   // LPCWSTR
  lpProgressRoutine: Pointer;   // LPPROGRESS_ROUTINE optional
  lpData: Pointer;   // void* optional
  pbCancel: Pointer;   // BOOL* optional, in/out
  dwCopyFlags: DWORD   // COPYFILE_FLAGS
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'CopyFileExW';

result := DllCall("KERNEL32\CopyFileExW"
    , "WStr", lpExistingFileName   ; LPCWSTR
    , "WStr", lpNewFileName   ; LPCWSTR
    , "Ptr", lpProgressRoutine   ; LPPROGRESS_ROUTINE optional
    , "Ptr", lpData   ; void* optional
    , "Ptr", pbCancel   ; BOOL* optional, in/out
    , "UInt", dwCopyFlags   ; COPYFILE_FLAGS
    , "Int")   ; return: BOOL

●CopyFileExW(lpExistingFileName, lpNewFileName, lpProgressRoutine, lpData, pbCancel, dwCopyFlags) = DLL("KERNEL32.dll", "bool CopyFileExW(char*, char*, void*, void*, void*, dword)")
# 呼び出し: CopyFileExW(lpExistingFileName, lpNewFileName, lpProgressRoutine, lpData, pbCancel, dwCopyFlags)
# lpExistingFileName : LPCWSTR -> "char*"
# lpNewFileName : LPCWSTR -> "char*"
# lpProgressRoutine : LPPROGRESS_ROUTINE optional -> "void*"
# lpData : void* optional -> "void*"
# pbCancel : BOOL* optional, in/out -> "void*"
# dwCopyFlags : COPYFILE_FLAGS -> "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)。
# ※-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 CopyFileExW(
    lpExistingFileName: [*c]const u16, // LPCWSTR
    lpNewFileName: [*c]const u16, // LPCWSTR
    lpProgressRoutine: ?*anyopaque, // LPPROGRESS_ROUTINE optional
    lpData: ?*anyopaque, // void* optional
    pbCancel: [*c]i32, // BOOL* optional, in/out
    dwCopyFlags: u32 // COPYFILE_FLAGS
) callconv(std.os.windows.WINAPI) i32;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。

proc CopyFileExW(
    lpExistingFileName: WideCString,  # LPCWSTR
    lpNewFileName: WideCString,  # LPCWSTR
    lpProgressRoutine: pointer,  # LPPROGRESS_ROUTINE optional
    lpData: pointer,  # void* optional
    pbCancel: ptr int32,  # BOOL* optional, in/out
    dwCopyFlags: uint32  # COPYFILE_FLAGS
): int32 {.importc: "CopyFileExW", stdcall, dynlib: "KERNEL32.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "kernel32");
extern(Windows)
int CopyFileExW(
    const(wchar)* lpExistingFileName,   // LPCWSTR
    const(wchar)* lpNewFileName,   // LPCWSTR
    void* lpProgressRoutine,   // LPPROGRESS_ROUTINE optional
    void* lpData,   // void* optional
    int* pbCancel,   // BOOL* optional, in/out
    uint dwCopyFlags   // COPYFILE_FLAGS
);

ccall((:CopyFileExW, "KERNEL32.dll"), stdcall, Int32,
      (Cwstring, Cwstring, Ptr{Cvoid}, Ptr{Cvoid}, Ptr{Int32}, UInt32),
      lpExistingFileName, lpNewFileName, lpProgressRoutine, lpData, pbCancel, dwCopyFlags)
# lpExistingFileName : LPCWSTR -> Cwstring
# lpNewFileName : LPCWSTR -> Cwstring
# lpProgressRoutine : LPPROGRESS_ROUTINE optional -> Ptr{Cvoid}
# lpData : void* optional -> Ptr{Cvoid}
# pbCancel : BOOL* optional, in/out -> Ptr{Int32}
# dwCopyFlags : COPYFILE_FLAGS -> UInt32
# 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[[
int32_t CopyFileExW(
    const uint16_t* lpExistingFileName,
    const uint16_t* lpNewFileName,
    void* lpProgressRoutine,
    void* lpData,
    int32_t* pbCancel,
    uint32_t dwCopyFlags);
]]
local kernel32 = ffi.load("kernel32")
-- kernel32.CopyFileExW(lpExistingFileName, lpNewFileName, lpProgressRoutine, lpData, pbCancel, dwCopyFlags)
-- lpExistingFileName : LPCWSTR
-- lpNewFileName : LPCWSTR
-- lpProgressRoutine : LPPROGRESS_ROUTINE optional
-- lpData : void* optional
-- pbCancel : BOOL* optional, in/out
-- dwCopyFlags : COPYFILE_FLAGS
-- 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 CopyFileExW = lib.func('__stdcall', 'CopyFileExW', 'int32_t', ['str16', 'str16', 'void *', 'void *', 'int32_t *', 'uint32_t']);
// CopyFileExW(lpExistingFileName, lpNewFileName, lpProgressRoutine, lpData, pbCancel, dwCopyFlags)
// lpExistingFileName : LPCWSTR -> 'str16'
// lpNewFileName : LPCWSTR -> 'str16'
// lpProgressRoutine : LPPROGRESS_ROUTINE optional -> 'void *'
// lpData : void* optional -> 'void *'
// pbCancel : BOOL* optional, in/out -> 'int32_t *'
// dwCopyFlags : COPYFILE_FLAGS -> 'uint32_t'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。
// コールバック(関数ポインタ)は koffi.proto/koffi.register で型を定義して渡す(素の void* では JS 関数を渡せない)。

const lib = Deno.dlopen("KERNEL32.dll", {
  CopyFileExW: { parameters: ["buffer", "buffer", "pointer", "pointer", "pointer", "u32"], result: "i32" },
});
// lib.symbols.CopyFileExW(lpExistingFileName, lpNewFileName, lpProgressRoutine, lpData, pbCancel, dwCopyFlags)
// lpExistingFileName : LPCWSTR -> "buffer"
// lpNewFileName : LPCWSTR -> "buffer"
// lpProgressRoutine : LPPROGRESS_ROUTINE optional -> "pointer"
// lpData : void* optional -> "pointer"
// pbCancel : BOOL* optional, in/out -> "pointer"
// dwCopyFlags : COPYFILE_FLAGS -> "u32"
// 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
int32_t CopyFileExW(
    const uint16_t* lpExistingFileName,
    const uint16_t* lpNewFileName,
    void* lpProgressRoutine,
    void* lpData,
    int32_t* pbCancel,
    uint32_t dwCopyFlags);
C, "KERNEL32.dll");
// $ffi->CopyFileExW(lpExistingFileName, lpNewFileName, lpProgressRoutine, lpData, pbCancel, dwCopyFlags);
// lpExistingFileName : LPCWSTR
// lpNewFileName : LPCWSTR
// lpProgressRoutine : LPPROGRESS_ROUTINE optional
// lpData : void* optional
// pbCancel : BOOL* optional, in/out
// dwCopyFlags : COPYFILE_FLAGS
// 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);
    boolean CopyFileExW(
        WString lpExistingFileName,   // LPCWSTR
        WString lpNewFileName,   // LPCWSTR
        Callback lpProgressRoutine,   // LPPROGRESS_ROUTINE optional
        Pointer lpData,   // void* optional
        IntByReference pbCancel,   // BOOL* optional, in/out
        int dwCopyFlags   // COPYFILE_FLAGS
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("kernel32")]
lib LibKERNEL32
  fun CopyFileExW = CopyFileExW(
    lpExistingFileName : UInt16*,   # LPCWSTR
    lpNewFileName : UInt16*,   # LPCWSTR
    lpProgressRoutine : Void*,   # LPPROGRESS_ROUTINE optional
    lpData : Void*,   # void* optional
    pbCancel : Int32*,   # BOOL* optional, in/out
    dwCopyFlags : UInt32   # COPYFILE_FLAGS
  ) : 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 CopyFileExWNative = Int32 Function(Pointer<Utf16>, Pointer<Utf16>, Pointer<Void>, Pointer<Void>, Pointer<Int32>, Uint32);
typedef CopyFileExWDart = int Function(Pointer<Utf16>, Pointer<Utf16>, Pointer<Void>, Pointer<Void>, Pointer<Int32>, int);
final CopyFileExW = DynamicLibrary.open('KERNEL32.dll')
    .lookupFunction<CopyFileExWNative, CopyFileExWDart>('CopyFileExW');
// lpExistingFileName : LPCWSTR -> Pointer<Utf16>
// lpNewFileName : LPCWSTR -> Pointer<Utf16>
// lpProgressRoutine : LPPROGRESS_ROUTINE optional -> Pointer<Void>
// lpData : void* optional -> Pointer<Void>
// pbCancel : BOOL* optional, in/out -> Pointer<Int32>
// dwCopyFlags : COPYFILE_FLAGS -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function CopyFileExW(
  lpExistingFileName: PWideChar;   // LPCWSTR
  lpNewFileName: PWideChar;   // LPCWSTR
  lpProgressRoutine: Pointer;   // LPPROGRESS_ROUTINE optional
  lpData: Pointer;   // void* optional
  pbCancel: Pointer;   // BOOL* optional, in/out
  dwCopyFlags: DWORD   // COPYFILE_FLAGS
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'CopyFileExW';

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

foreign import stdcall safe "CopyFileExW"
  c_CopyFileExW :: CWString -> CWString -> Ptr () -> Ptr () -> Ptr CInt -> Word32 -> IO CInt
-- lpExistingFileName : LPCWSTR -> CWString
-- lpNewFileName : LPCWSTR -> CWString
-- lpProgressRoutine : LPPROGRESS_ROUTINE optional -> Ptr ()
-- lpData : void* optional -> Ptr ()
-- pbCancel : BOOL* optional, in/out -> Ptr CInt
-- dwCopyFlags : COPYFILE_FLAGS -> 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 copyfileexw =
  foreign "CopyFileExW"
    ((ptr uint16_t) @-> (ptr uint16_t) @-> (ptr void) @-> (ptr void) @-> (ptr int32_t) @-> uint32_t @-> returning int32_t)
(* lpExistingFileName : LPCWSTR -> (ptr uint16_t) *)
(* lpNewFileName : LPCWSTR -> (ptr uint16_t) *)
(* lpProgressRoutine : LPPROGRESS_ROUTINE optional -> (ptr void) *)
(* lpData : void* optional -> (ptr void) *)
(* pbCancel : BOOL* optional, in/out -> (ptr int32_t) *)
(* dwCopyFlags : COPYFILE_FLAGS -> 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 kernel32 (t "KERNEL32.dll"))
(cffi:use-foreign-library kernel32)

(cffi:defcfun ("CopyFileExW" copy-file-ex-w :convention :stdcall) :int32
  (lp-existing-file-name (:string :encoding :utf-16le))   ; LPCWSTR
  (lp-new-file-name (:string :encoding :utf-16le))   ; LPCWSTR
  (lp-progress-routine :pointer)   ; LPPROGRESS_ROUTINE optional
  (lp-data :pointer)   ; void* optional
  (pb-cancel :pointer)   ; BOOL* optional, in/out
  (dw-copy-flags :uint32))   ; COPYFILE_FLAGS
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $CopyFileExW = Win32::API::More->new('KERNEL32',
    'BOOL CopyFileExW(LPCWSTR lpExistingFileName, LPCWSTR lpNewFileName, LPVOID lpProgressRoutine, LPVOID lpData, LPVOID pbCancel, DWORD dwCopyFlags)');
# my $ret = $CopyFileExW->Call($lpExistingFileName, $lpNewFileName, $lpProgressRoutine, $lpData, $pbCancel, $dwCopyFlags);
# lpExistingFileName : LPCWSTR -> LPCWSTR
# lpNewFileName : LPCWSTR -> LPCWSTR
# lpProgressRoutine : LPPROGRESS_ROUTINE optional -> LPVOID
# lpData : void* optional -> LPVOID
# pbCancel : BOOL* optional, in/out -> LPVOID
# dwCopyFlags : COPYFILE_FLAGS -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。
# コールバック(関数ポインタ)は Perl sub を直接渡せません。Win32::API::Callback を使用してください。
# Unicode(-W): LPCWSTR/LPWSTR は Win32::API が UTF-16 変換を行う。