SafeRef

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

void* SafeRef(
    const GUID* rid,
    IUnknown* pUnk
);

<DllImport("comsvcs.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function SafeRef(
    ByRef rid As Guid,   ' GUID*
    pUnk As IntPtr   ' IUnknown*
) As IntPtr
End Function

' rid : GUID*
' pUnk : IUnknown*
Declare PtrSafe Function SafeRef Lib "comsvcs" ( _
    ByVal rid As LongPtr, _
    ByVal pUnk As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SafeRef = ctypes.cdll.comsvcs.SafeRef
SafeRef.restype = ctypes.c_void_p
SafeRef.argtypes = [
    ctypes.c_void_p,  # rid : GUID*
    ctypes.c_void_p,  # pUnk : IUnknown*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('comsvcs.dll')
SafeRef = Fiddle::Function.new(
  lib['SafeRef'],
  [
    Fiddle::TYPE_VOIDP,  # rid : GUID*
    Fiddle::TYPE_VOIDP,  # pUnk : IUnknown*
  ],
  Fiddle::TYPE_VOIDP, Fiddle::Function::CDECL)

#[link(name = "comsvcs")]
extern "C" {
    fn SafeRef(
        rid: *const GUID,  // GUID*
        pUnk: *mut core::ffi::c_void  // IUnknown*
    ) -> *mut ();
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("comsvcs.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr SafeRef(ref Guid rid, IntPtr pUnk);
"@
$api = Add-Type -MemberDefinition $sig -Name 'comsvcs_SafeRef' -Namespace Win32 -PassThru
# $api::SafeRef(rid, pUnk)

#uselib "comsvcs.dll"
#func global SafeRef "SafeRef" sptr, sptr
; SafeRef varptr(rid), pUnk   ; 戻り値は stat
; rid : GUID* -> "sptr"
; pUnk : IUnknown* -> "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。

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

var (
	comsvcs = windows.NewLazySystemDLL("comsvcs.dll")
	procSafeRef = comsvcs.NewProc("SafeRef")
)

// rid (GUID*), pUnk (IUnknown*)
r1, _, err := procSafeRef.Call(
	uintptr(rid),
	uintptr(pUnk),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void*

function SafeRef(
  rid: PGUID;   // GUID*
  pUnk: Pointer   // IUnknown*
): Pointer; cdecl;
  external 'comsvcs.dll' name 'SafeRef';

result := DllCall("comsvcs\SafeRef"
    , "Ptr", rid   ; GUID*
    , "Ptr", pUnk   ; IUnknown*
    , "Cdecl Ptr")   ; return: void*

●SafeRef(rid, pUnk) = DLL("comsvcs.dll", "void* SafeRef(void*, void*)")
# 呼び出し: SafeRef(rid, pUnk)
# rid : GUID* -> "void*"
# pUnk : IUnknown* -> "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)。
# ※cdecl関数。DLL()宣言はstdcall前提。cdeclは EXEC_PTR(`cdecl`,…) を使用。

const std = @import("std");

extern "comsvcs" fn SafeRef(
    rid: [*c]GUID, // GUID*
    pUnk: ?*anyopaque // IUnknown*
) callconv(.c) ?*anyopaque;

proc SafeRef(
    rid: ptr GUID,  # GUID*
    pUnk: pointer  # IUnknown*
): pointer {.importc: "SafeRef", cdecl, dynlib: "comsvcs.dll".}

pragma(lib, "comsvcs");
extern(C)
void* SafeRef(
    GUID* rid,   // GUID*
    void* pUnk   // IUnknown*
);

ccall((:SafeRef, "comsvcs.dll"), Ptr{Cvoid},
      (Ptr{GUID}, Ptr{Cvoid}),
      rid, pUnk)
# rid : GUID* -> Ptr{GUID}
# pUnk : IUnknown* -> Ptr{Cvoid}

local ffi = require("ffi")
ffi.cdef[[
void* SafeRef(
    void* rid,
    void* pUnk);
]]
local comsvcs = ffi.load("comsvcs")
-- comsvcs.SafeRef(rid, pUnk)
-- rid : GUID*
-- pUnk : IUnknown*
-- 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。

const koffi = require('koffi');
const lib = koffi.load('comsvcs.dll');
const SafeRef = lib.func('__cdecl', 'SafeRef', 'void *', ['void *', 'void *']);
// SafeRef(rid, pUnk)
// rid : GUID* -> 'void *'
// pUnk : IUnknown* -> '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("comsvcs.dll", {
  SafeRef: { parameters: ["pointer", "pointer"], result: "pointer" },
});
// lib.symbols.SafeRef(rid, pUnk)
// rid : GUID* -> "pointer"
// pUnk : IUnknown* -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
void* SafeRef(
    void* rid,
    void* pUnk);
C, "comsvcs.dll");
// $ffi->SafeRef(rid, pUnk);
// rid : GUID*
// pUnk : IUnknown*
// 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。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Comsvcs extends Library {
    Comsvcs INSTANCE = Native.load("comsvcs", Comsvcs.class);
    Pointer SafeRef(
        Pointer rid,   // GUID*
        Pointer pUnk   // IUnknown*
    );
}

@[Link("comsvcs")]
lib Libcomsvcs
  fun SafeRef = SafeRef(
    rid : GUID*,   # GUID*
    pUnk : Void*   # IUnknown*
  ) : Void*
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef SafeRefNative = Pointer<Void> Function(Pointer<Void>, Pointer<Void>);
typedef SafeRefDart = Pointer<Void> Function(Pointer<Void>, Pointer<Void>);
final SafeRef = DynamicLibrary.open('comsvcs.dll')
    .lookupFunction<SafeRefNative, SafeRefDart>('SafeRef');
// rid : GUID* -> Pointer<Void>
// pUnk : IUnknown* -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SafeRef(
  rid: PGUID;   // GUID*
  pUnk: Pointer   // IUnknown*
): Pointer; cdecl;
  external 'comsvcs.dll' name 'SafeRef';

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

foreign import ccall safe "SafeRef"
  c_SafeRef :: Ptr () -> Ptr () -> IO (Ptr ())
-- rid : GUID* -> Ptr ()
-- pUnk : IUnknown* -> 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 saferef =
  foreign "SafeRef"
    ((ptr void) @-> (ptr void) @-> returning (ptr void))
(* rid : GUID* -> (ptr void) *)
(* pUnk : IUnknown* -> (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 comsvcs (t "comsvcs.dll"))
(cffi:use-foreign-library comsvcs)

(cffi:defcfun ("SafeRef" safe-ref :convention :cdecl) :pointer
  (rid :pointer)   ; GUID*
  (p-unk :pointer))   ; IUnknown*
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SafeRef = Win32::API::More->new('comsvcs',
    'LPVOID SafeRef(LPVOID rid, LPVOID pUnk)');
# my $ret = $SafeRef->Call($rid, $pUnk);
# rid : GUID* -> LPVOID
# pUnk : IUnknown* -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。