CopyMetaFileW

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

HMETAFILE CopyMetaFileW(
    HMETAFILE param0,
    LPCWSTR param1   // optional
);

<DllImport("GDI32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function CopyMetaFileW(
    param0 As IntPtr,   ' HMETAFILE
    <MarshalAs(UnmanagedType.LPWStr)> param1 As String   ' LPCWSTR optional
) As IntPtr
End Function

' param0 : HMETAFILE
' param1 : LPCWSTR optional
Declare PtrSafe Function CopyMetaFileW Lib "gdi32" ( _
    ByVal param0 As LongPtr, _
    ByVal param1 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

CopyMetaFileW = ctypes.windll.gdi32.CopyMetaFileW
CopyMetaFileW.restype = ctypes.c_void_p
CopyMetaFileW.argtypes = [
    wintypes.HANDLE,  # param0 : HMETAFILE
    wintypes.LPCWSTR,  # param1 : LPCWSTR optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GDI32.dll')
CopyMetaFileW = Fiddle::Function.new(
  lib['CopyMetaFileW'],
  [
    Fiddle::TYPE_VOIDP,  # param0 : HMETAFILE
    Fiddle::TYPE_VOIDP,  # param1 : LPCWSTR optional
  ],
  Fiddle::TYPE_VOIDP)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "gdi32")]
extern "system" {
    fn CopyMetaFileW(
        param0: *mut core::ffi::c_void,  // HMETAFILE
        param1: *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 CopyMetaFileW(IntPtr param0, [MarshalAs(UnmanagedType.LPWStr)] string param1);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GDI32_CopyMetaFileW' -Namespace Win32 -PassThru
# $api::CopyMetaFileW(param0, param1)

#uselib "GDI32.dll"
#func global CopyMetaFileW "CopyMetaFileW" wptr, wptr
; CopyMetaFileW param0, param1   ; 戻り値は stat
; param0 : HMETAFILE -> "wptr"
; param1 : 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 CopyMetaFileW "CopyMetaFileW" sptr, wstr
; res = CopyMetaFileW(param0, param1)
; param0 : HMETAFILE -> "sptr"
; param1 : LPCWSTR optional -> "wstr"

; HMETAFILE CopyMetaFileW(HMETAFILE param0, LPCWSTR param1)
#uselib "GDI32.dll"
#cfunc global CopyMetaFileW "CopyMetaFileW" intptr, wstr
; res = CopyMetaFileW(param0, param1)
; param0 : HMETAFILE -> "intptr"
; param1 : LPCWSTR optional -> "wstr"

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

var (
	gdi32 = windows.NewLazySystemDLL("GDI32.dll")
	procCopyMetaFileW = gdi32.NewProc("CopyMetaFileW")
)

// param0 (HMETAFILE), param1 (LPCWSTR optional)
r1, _, err := procCopyMetaFileW.Call(
	uintptr(param0),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(param1))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HMETAFILE

function CopyMetaFileW(
  param0: THandle;   // HMETAFILE
  param1: PWideChar   // LPCWSTR optional
): THandle; stdcall;
  external 'GDI32.dll' name 'CopyMetaFileW';

result := DllCall("GDI32\CopyMetaFileW"
    , "Ptr", param0   ; HMETAFILE
    , "WStr", param1   ; LPCWSTR optional
    , "Ptr")   ; return: HMETAFILE

●CopyMetaFileW(param0, param1) = DLL("GDI32.dll", "void* CopyMetaFileW(void*, char*)")
# 呼び出し: CopyMetaFileW(param0, param1)
# param0 : HMETAFILE -> "void*"
# param1 : 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。