CoCreateActivity

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

HRESULT CoCreateActivity(
    IUnknown* pIUnknown,
    const GUID* riid,
    void** ppObj
);

<DllImport("comsvcs.dll", ExactSpelling:=True)>
Public Shared Function CoCreateActivity(
    pIUnknown As IntPtr,   ' IUnknown*
    ByRef riid As Guid,   ' GUID*
    ppObj As IntPtr   ' void** in/out
) As Integer
End Function

' pIUnknown : IUnknown*
' riid : GUID*
' ppObj : void** in/out
Declare PtrSafe Function CoCreateActivity Lib "comsvcs" ( _
    ByVal pIUnknown As LongPtr, _
    ByVal riid As LongPtr, _
    ByVal ppObj 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

CoCreateActivity = ctypes.windll.comsvcs.CoCreateActivity
CoCreateActivity.restype = ctypes.c_int
CoCreateActivity.argtypes = [
    ctypes.c_void_p,  # pIUnknown : IUnknown*
    ctypes.c_void_p,  # riid : GUID*
    ctypes.c_void_p,  # ppObj : void** in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('comsvcs.dll')
CoCreateActivity = Fiddle::Function.new(
  lib['CoCreateActivity'],
  [
    Fiddle::TYPE_VOIDP,  # pIUnknown : IUnknown*
    Fiddle::TYPE_VOIDP,  # riid : GUID*
    Fiddle::TYPE_VOIDP,  # ppObj : void** in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "comsvcs")]
extern "system" {
    fn CoCreateActivity(
        pIUnknown: *mut core::ffi::c_void,  // IUnknown*
        riid: *const GUID,  // GUID*
        ppObj: *mut *mut ()  // void** in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("comsvcs.dll")]
public static extern int CoCreateActivity(IntPtr pIUnknown, ref Guid riid, IntPtr ppObj);
"@
$api = Add-Type -MemberDefinition $sig -Name 'comsvcs_CoCreateActivity' -Namespace Win32 -PassThru
# $api::CoCreateActivity(pIUnknown, riid, ppObj)

#uselib "comsvcs.dll"
#func global CoCreateActivity "CoCreateActivity" sptr, sptr, sptr
; CoCreateActivity pIUnknown, varptr(riid), ppObj   ; 戻り値は stat
; pIUnknown : IUnknown* -> "sptr"
; riid : GUID* -> "sptr"
; ppObj : void** in/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。

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

var (
	comsvcs = windows.NewLazySystemDLL("comsvcs.dll")
	procCoCreateActivity = comsvcs.NewProc("CoCreateActivity")
)

// pIUnknown (IUnknown*), riid (GUID*), ppObj (void** in/out)
r1, _, err := procCoCreateActivity.Call(
	uintptr(pIUnknown),
	uintptr(riid),
	uintptr(ppObj),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function CoCreateActivity(
  pIUnknown: Pointer;   // IUnknown*
  riid: PGUID;   // GUID*
  ppObj: Pointer   // void** in/out
): Integer; stdcall;
  external 'comsvcs.dll' name 'CoCreateActivity';

result := DllCall("comsvcs\CoCreateActivity"
    , "Ptr", pIUnknown   ; IUnknown*
    , "Ptr", riid   ; GUID*
    , "Ptr", ppObj   ; void** in/out
    , "Int")   ; return: HRESULT

●CoCreateActivity(pIUnknown, riid, ppObj) = DLL("comsvcs.dll", "int CoCreateActivity(void*, void*, void*)")
# 呼び出し: CoCreateActivity(pIUnknown, riid, ppObj)
# pIUnknown : IUnknown* -> "void*"
# riid : GUID* -> "void*"
# ppObj : void** in/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)。

const std = @import("std");

extern "comsvcs" fn CoCreateActivity(
    pIUnknown: ?*anyopaque, // IUnknown*
    riid: [*c]GUID, // GUID*
    ppObj: ?*anyopaque // void** in/out
) callconv(std.os.windows.WINAPI) i32;

proc CoCreateActivity(
    pIUnknown: pointer,  # IUnknown*
    riid: ptr GUID,  # GUID*
    ppObj: pointer  # void** in/out
): int32 {.importc: "CoCreateActivity", stdcall, dynlib: "comsvcs.dll".}

pragma(lib, "comsvcs");
extern(Windows)
int CoCreateActivity(
    void* pIUnknown,   // IUnknown*
    GUID* riid,   // GUID*
    void** ppObj   // void** in/out
);

ccall((:CoCreateActivity, "comsvcs.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Ptr{GUID}, Ptr{Cvoid}),
      pIUnknown, riid, ppObj)
# pIUnknown : IUnknown* -> Ptr{Cvoid}
# riid : GUID* -> Ptr{GUID}
# ppObj : void** in/out -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t CoCreateActivity(
    void* pIUnknown,
    void* riid,
    void** ppObj);
]]
local comsvcs = ffi.load("comsvcs")
-- comsvcs.CoCreateActivity(pIUnknown, riid, ppObj)
-- pIUnknown : IUnknown*
-- riid : GUID*
-- ppObj : void** in/out
-- 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 CoCreateActivity = lib.func('__stdcall', 'CoCreateActivity', 'int32_t', ['void *', 'void *', 'void *']);
// CoCreateActivity(pIUnknown, riid, ppObj)
// pIUnknown : IUnknown* -> 'void *'
// riid : GUID* -> 'void *'
// ppObj : void** in/out -> '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", {
  CoCreateActivity: { parameters: ["pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.CoCreateActivity(pIUnknown, riid, ppObj)
// pIUnknown : IUnknown* -> "pointer"
// riid : GUID* -> "pointer"
// ppObj : void** in/out -> "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
int32_t CoCreateActivity(
    void* pIUnknown,
    void* riid,
    void** ppObj);
C, "comsvcs.dll");
// $ffi->CoCreateActivity(pIUnknown, riid, ppObj);
// pIUnknown : IUnknown*
// riid : GUID*
// ppObj : void** in/out
// 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 Comsvcs extends StdCallLibrary {
    Comsvcs INSTANCE = Native.load("comsvcs", Comsvcs.class);
    int CoCreateActivity(
        Pointer pIUnknown,   // IUnknown*
        Pointer riid,   // GUID*
        Pointer ppObj   // void** in/out
    );
}

@[Link("comsvcs")]
lib Libcomsvcs
  fun CoCreateActivity = CoCreateActivity(
    pIUnknown : Void*,   # IUnknown*
    riid : GUID*,   # GUID*
    ppObj : Void**   # void** in/out
  ) : 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 CoCreateActivityNative = Int32 Function(Pointer<Void>, Pointer<Void>, Pointer<Void>);
typedef CoCreateActivityDart = int Function(Pointer<Void>, Pointer<Void>, Pointer<Void>);
final CoCreateActivity = DynamicLibrary.open('comsvcs.dll')
    .lookupFunction<CoCreateActivityNative, CoCreateActivityDart>('CoCreateActivity');
// pIUnknown : IUnknown* -> Pointer<Void>
// riid : GUID* -> Pointer<Void>
// ppObj : void** in/out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function CoCreateActivity(
  pIUnknown: Pointer;   // IUnknown*
  riid: PGUID;   // GUID*
  ppObj: Pointer   // void** in/out
): Integer; stdcall;
  external 'comsvcs.dll' name 'CoCreateActivity';

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

foreign import stdcall safe "CoCreateActivity"
  c_CoCreateActivity :: Ptr () -> Ptr () -> Ptr () -> IO Int32
-- pIUnknown : IUnknown* -> Ptr ()
-- riid : GUID* -> Ptr ()
-- ppObj : void** in/out -> 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 cocreateactivity =
  foreign "CoCreateActivity"
    ((ptr void) @-> (ptr void) @-> (ptr void) @-> returning int32_t)
(* pIUnknown : IUnknown* -> (ptr void) *)
(* riid : GUID* -> (ptr void) *)
(* ppObj : void** in/out -> (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 ("CoCreateActivity" co-create-activity :convention :stdcall) :int32
  (p-iunknown :pointer)   ; IUnknown*
  (riid :pointer)   ; GUID*
  (pp-obj :pointer))   ; void** in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $CoCreateActivity = Win32::API::More->new('comsvcs',
    'int CoCreateActivity(LPVOID pIUnknown, LPVOID riid, LPVOID ppObj)');
# my $ret = $CoCreateActivity->Call($pIUnknown, $riid, $ppObj);
# pIUnknown : IUnknown* -> LPVOID
# riid : GUID* -> LPVOID
# ppObj : void** in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。