GetMetaFileBitsEx

// GDI32.dll
#include <windows.h>

DWORD GetMetaFileBitsEx(
    HMETAFILE hMF,
    DWORD cbBuffer,
    void* lpData   // optional
);

<DllImport("GDI32.dll", ExactSpelling:=True)>
Public Shared Function GetMetaFileBitsEx(
    hMF As IntPtr,   ' HMETAFILE
    cbBuffer As UInteger,   ' DWORD
    lpData As IntPtr   ' void* optional, out
) As UInteger
End Function

' hMF : HMETAFILE
' cbBuffer : DWORD
' lpData : void* optional, out
Declare PtrSafe Function GetMetaFileBitsEx Lib "gdi32" ( _
    ByVal hMF As LongPtr, _
    ByVal cbBuffer As Long, _
    ByVal lpData As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetMetaFileBitsEx = ctypes.windll.gdi32.GetMetaFileBitsEx
GetMetaFileBitsEx.restype = wintypes.DWORD
GetMetaFileBitsEx.argtypes = [
    wintypes.HANDLE,  # hMF : HMETAFILE
    wintypes.DWORD,  # cbBuffer : DWORD
    ctypes.POINTER(None),  # lpData : void* optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GDI32.dll')
GetMetaFileBitsEx = Fiddle::Function.new(
  lib['GetMetaFileBitsEx'],
  [
    Fiddle::TYPE_VOIDP,  # hMF : HMETAFILE
    -Fiddle::TYPE_INT,  # cbBuffer : DWORD
    Fiddle::TYPE_VOIDP,  # lpData : void* optional, out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "gdi32")]
extern "system" {
    fn GetMetaFileBitsEx(
        hMF: *mut core::ffi::c_void,  // HMETAFILE
        cbBuffer: u32,  // DWORD
        lpData: *mut ()  // void* optional, out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("GDI32.dll")]
public static extern uint GetMetaFileBitsEx(IntPtr hMF, uint cbBuffer, IntPtr lpData);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GDI32_GetMetaFileBitsEx' -Namespace Win32 -PassThru
# $api::GetMetaFileBitsEx(hMF, cbBuffer, lpData)

#uselib "GDI32.dll"
#func global GetMetaFileBitsEx "GetMetaFileBitsEx" sptr, sptr, sptr
; GetMetaFileBitsEx hMF, cbBuffer, lpData   ; 戻り値は stat
; hMF : HMETAFILE -> "sptr"
; cbBuffer : DWORD -> "sptr"
; lpData : void* optional, out -> "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 "GDI32.dll"
#cfunc global GetMetaFileBitsEx "GetMetaFileBitsEx" sptr, int, sptr
; res = GetMetaFileBitsEx(hMF, cbBuffer, lpData)
; hMF : HMETAFILE -> "sptr"
; cbBuffer : DWORD -> "int"
; lpData : void* optional, out -> "sptr"

; DWORD GetMetaFileBitsEx(HMETAFILE hMF, DWORD cbBuffer, void* lpData)
#uselib "GDI32.dll"
#cfunc global GetMetaFileBitsEx "GetMetaFileBitsEx" intptr, int, intptr
; res = GetMetaFileBitsEx(hMF, cbBuffer, lpData)
; hMF : HMETAFILE -> "intptr"
; cbBuffer : DWORD -> "int"
; lpData : void* optional, out -> "intptr"

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

var (
	gdi32 = windows.NewLazySystemDLL("GDI32.dll")
	procGetMetaFileBitsEx = gdi32.NewProc("GetMetaFileBitsEx")
)

// hMF (HMETAFILE), cbBuffer (DWORD), lpData (void* optional, out)
r1, _, err := procGetMetaFileBitsEx.Call(
	uintptr(hMF),
	uintptr(cbBuffer),
	uintptr(lpData),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function GetMetaFileBitsEx(
  hMF: THandle;   // HMETAFILE
  cbBuffer: DWORD;   // DWORD
  lpData: Pointer   // void* optional, out
): DWORD; stdcall;
  external 'GDI32.dll' name 'GetMetaFileBitsEx';

result := DllCall("GDI32\GetMetaFileBitsEx"
    , "Ptr", hMF   ; HMETAFILE
    , "UInt", cbBuffer   ; DWORD
    , "Ptr", lpData   ; void* optional, out
    , "UInt")   ; return: DWORD

●GetMetaFileBitsEx(hMF, cbBuffer, lpData) = DLL("GDI32.dll", "dword GetMetaFileBitsEx(void*, dword, void*)")
# 呼び出し: GetMetaFileBitsEx(hMF, cbBuffer, lpData)
# hMF : HMETAFILE -> "void*"
# cbBuffer : DWORD -> "dword"
# lpData : void* optional, out -> "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)。