CopyEnhMetaFileW

// GDI32.dll  (Unicode / -W)
#include <windows.h>

HENHMETAFILE CopyEnhMetaFileW(
    HENHMETAFILE hEnh,
    LPCWSTR lpFileName   // optional
);

<DllImport("GDI32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function CopyEnhMetaFileW(
    hEnh As IntPtr,   ' HENHMETAFILE
    <MarshalAs(UnmanagedType.LPWStr)> lpFileName As String   ' LPCWSTR optional
) As IntPtr
End Function

' hEnh : HENHMETAFILE
' lpFileName : LPCWSTR optional
Declare PtrSafe Function CopyEnhMetaFileW Lib "gdi32" ( _
    ByVal hEnh As LongPtr, _
    ByVal lpFileName 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

CopyEnhMetaFileW = ctypes.windll.gdi32.CopyEnhMetaFileW
CopyEnhMetaFileW.restype = ctypes.c_void_p
CopyEnhMetaFileW.argtypes = [
    wintypes.HANDLE,  # hEnh : HENHMETAFILE
    wintypes.LPCWSTR,  # lpFileName : LPCWSTR optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GDI32.dll')
CopyEnhMetaFileW = Fiddle::Function.new(
  lib['CopyEnhMetaFileW'],
  [
    Fiddle::TYPE_VOIDP,  # hEnh : HENHMETAFILE
    Fiddle::TYPE_VOIDP,  # lpFileName : LPCWSTR optional
  ],
  Fiddle::TYPE_VOIDP)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "gdi32")]
extern "system" {
    fn CopyEnhMetaFileW(
        hEnh: *mut core::ffi::c_void,  // HENHMETAFILE
        lpFileName: *const u16  // LPCWSTR optional
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("GDI32.dll", CharSet = CharSet.Unicode)]
public static extern IntPtr CopyEnhMetaFileW(IntPtr hEnh, [MarshalAs(UnmanagedType.LPWStr)] string lpFileName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GDI32_CopyEnhMetaFileW' -Namespace Win32 -PassThru
# $api::CopyEnhMetaFileW(hEnh, lpFileName)

#uselib "GDI32.dll"
#func global CopyEnhMetaFileW "CopyEnhMetaFileW" wptr, wptr
; CopyEnhMetaFileW hEnh, lpFileName   ; 戻り値は stat
; hEnh : HENHMETAFILE -> "wptr"
; lpFileName : LPCWSTR 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。

#uselib "GDI32.dll"
#cfunc global CopyEnhMetaFileW "CopyEnhMetaFileW" sptr, wstr
; res = CopyEnhMetaFileW(hEnh, lpFileName)
; hEnh : HENHMETAFILE -> "sptr"
; lpFileName : LPCWSTR optional -> "wstr"

; HENHMETAFILE CopyEnhMetaFileW(HENHMETAFILE hEnh, LPCWSTR lpFileName)
#uselib "GDI32.dll"
#cfunc global CopyEnhMetaFileW "CopyEnhMetaFileW" intptr, wstr
; res = CopyEnhMetaFileW(hEnh, lpFileName)
; hEnh : HENHMETAFILE -> "intptr"
; lpFileName : LPCWSTR optional -> "wstr"

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

var (
	gdi32 = windows.NewLazySystemDLL("GDI32.dll")
	procCopyEnhMetaFileW = gdi32.NewProc("CopyEnhMetaFileW")
)

// hEnh (HENHMETAFILE), lpFileName (LPCWSTR optional)
r1, _, err := procCopyEnhMetaFileW.Call(
	uintptr(hEnh),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpFileName))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HENHMETAFILE

function CopyEnhMetaFileW(
  hEnh: THandle;   // HENHMETAFILE
  lpFileName: PWideChar   // LPCWSTR optional
): THandle; stdcall;
  external 'GDI32.dll' name 'CopyEnhMetaFileW';

result := DllCall("GDI32\CopyEnhMetaFileW"
    , "Ptr", hEnh   ; HENHMETAFILE
    , "WStr", lpFileName   ; LPCWSTR optional
    , "Ptr")   ; return: HENHMETAFILE

●CopyEnhMetaFileW(hEnh, lpFileName) = DLL("GDI32.dll", "void* CopyEnhMetaFileW(void*, char*)")
# 呼び出し: CopyEnhMetaFileW(hEnh, lpFileName)
# hEnh : HENHMETAFILE -> "void*"
# lpFileName : LPCWSTR optional -> "char*"
# 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 "gdi32" fn CopyEnhMetaFileW(
    hEnh: ?*anyopaque, // HENHMETAFILE
    lpFileName: [*c]const u16 // LPCWSTR 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 CopyEnhMetaFileW(
    hEnh: pointer,  # HENHMETAFILE
    lpFileName: WideCString  # LPCWSTR optional
): pointer {.importc: "CopyEnhMetaFileW", stdcall, dynlib: "GDI32.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "gdi32");
extern(Windows)
void* CopyEnhMetaFileW(
    void* hEnh,   // HENHMETAFILE
    const(wchar)* lpFileName   // LPCWSTR optional
);

ccall((:CopyEnhMetaFileW, "GDI32.dll"), stdcall, Ptr{Cvoid},
      (Ptr{Cvoid}, Cwstring),
      hEnh, lpFileName)
# hEnh : HENHMETAFILE -> Ptr{Cvoid}
# lpFileName : LPCWSTR optional -> Cwstring
# 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* CopyEnhMetaFileW(
    void* hEnh,
    const uint16_t* lpFileName);
]]
local gdi32 = ffi.load("gdi32")
-- gdi32.CopyEnhMetaFileW(hEnh, lpFileName)
-- hEnh : HENHMETAFILE
-- lpFileName : LPCWSTR 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('GDI32.dll');
const CopyEnhMetaFileW = lib.func('__stdcall', 'CopyEnhMetaFileW', 'void *', ['void *', 'str16']);
// CopyEnhMetaFileW(hEnh, lpFileName)
// hEnh : HENHMETAFILE -> 'void *'
// lpFileName : LPCWSTR optional -> 'str16'
// 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("GDI32.dll", {
  CopyEnhMetaFileW: { parameters: ["pointer", "buffer"], result: "pointer" },
});
// lib.symbols.CopyEnhMetaFileW(hEnh, lpFileName)
// hEnh : HENHMETAFILE -> "pointer"
// lpFileName : LPCWSTR optional -> "buffer"
// 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* CopyEnhMetaFileW(
    void* hEnh,
    const uint16_t* lpFileName);
C, "GDI32.dll");
// $ffi->CopyEnhMetaFileW(hEnh, lpFileName);
// hEnh : HENHMETAFILE
// lpFileName : LPCWSTR 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 Gdi32 extends StdCallLibrary {
    Gdi32 INSTANCE = Native.load("gdi32", Gdi32.class, W32APIOptions.UNICODE_OPTIONS);
    Pointer CopyEnhMetaFileW(
        Pointer hEnh,   // HENHMETAFILE
        WString lpFileName   // LPCWSTR optional
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("gdi32")]
lib LibGDI32
  fun CopyEnhMetaFileW = CopyEnhMetaFileW(
    hEnh : Void*,   # HENHMETAFILE
    lpFileName : UInt16*   # LPCWSTR 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 CopyEnhMetaFileWNative = Pointer<Void> Function(Pointer<Void>, Pointer<Utf16>);
typedef CopyEnhMetaFileWDart = Pointer<Void> Function(Pointer<Void>, Pointer<Utf16>);
final CopyEnhMetaFileW = DynamicLibrary.open('GDI32.dll')
    .lookupFunction<CopyEnhMetaFileWNative, CopyEnhMetaFileWDart>('CopyEnhMetaFileW');
// hEnh : HENHMETAFILE -> Pointer<Void>
// lpFileName : LPCWSTR optional -> Pointer<Utf16>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function CopyEnhMetaFileW(
  hEnh: THandle;   // HENHMETAFILE
  lpFileName: PWideChar   // LPCWSTR optional
): THandle; stdcall;
  external 'GDI32.dll' name 'CopyEnhMetaFileW';

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

foreign import stdcall safe "CopyEnhMetaFileW"
  c_CopyEnhMetaFileW :: Ptr () -> CWString -> IO (Ptr ())
-- hEnh : HENHMETAFILE -> Ptr ()
-- lpFileName : LPCWSTR optional -> CWString
-- 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 copyenhmetafilew =
  foreign "CopyEnhMetaFileW"
    ((ptr void) @-> (ptr uint16_t) @-> returning (ptr void))
(* hEnh : HENHMETAFILE -> (ptr void) *)
(* lpFileName : LPCWSTR optional -> (ptr uint16_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 gdi32 (t "GDI32.dll"))
(cffi:use-foreign-library gdi32)

(cffi:defcfun ("CopyEnhMetaFileW" copy-enh-meta-file-w :convention :stdcall) :pointer
  (h-enh :pointer)   ; HENHMETAFILE
  (lp-file-name (:string :encoding :utf-16le)))   ; LPCWSTR optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $CopyEnhMetaFileW = Win32::API::More->new('GDI32',
    'HANDLE CopyEnhMetaFileW(HANDLE hEnh, LPCWSTR lpFileName)');
# my $ret = $CopyEnhMetaFileW->Call($hEnh, $lpFileName);
# hEnh : HENHMETAFILE -> HANDLE
# lpFileName : LPCWSTR optional -> LPCWSTR
# 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。