MFCreateAsyncResult

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

HRESULT MFCreateAsyncResult(
    IUnknown* punkObject,
    IMFAsyncCallback* pCallback,
    IUnknown* punkState,
    IMFAsyncResult** ppAsyncResult
);

<DllImport("MFPlat.dll", ExactSpelling:=True)>
Public Shared Function MFCreateAsyncResult(
    punkObject As IntPtr,   ' IUnknown*
    pCallback As IntPtr,   ' IMFAsyncCallback*
    punkState As IntPtr,   ' IUnknown*
    ppAsyncResult As IntPtr   ' IMFAsyncResult** out
) As Integer
End Function

' punkObject : IUnknown*
' pCallback : IMFAsyncCallback*
' punkState : IUnknown*
' ppAsyncResult : IMFAsyncResult** out
Declare PtrSafe Function MFCreateAsyncResult Lib "mfplat" ( _
    ByVal punkObject As LongPtr, _
    ByVal pCallback As LongPtr, _
    ByVal punkState As LongPtr, _
    ByVal ppAsyncResult 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

MFCreateAsyncResult = ctypes.windll.mfplat.MFCreateAsyncResult
MFCreateAsyncResult.restype = ctypes.c_int
MFCreateAsyncResult.argtypes = [
    ctypes.c_void_p,  # punkObject : IUnknown*
    ctypes.c_void_p,  # pCallback : IMFAsyncCallback*
    ctypes.c_void_p,  # punkState : IUnknown*
    ctypes.c_void_p,  # ppAsyncResult : IMFAsyncResult** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.dll')
MFCreateAsyncResult = Fiddle::Function.new(
  lib['MFCreateAsyncResult'],
  [
    Fiddle::TYPE_VOIDP,  # punkObject : IUnknown*
    Fiddle::TYPE_VOIDP,  # pCallback : IMFAsyncCallback*
    Fiddle::TYPE_VOIDP,  # punkState : IUnknown*
    Fiddle::TYPE_VOIDP,  # ppAsyncResult : IMFAsyncResult** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mfplat")]
extern "system" {
    fn MFCreateAsyncResult(
        punkObject: *mut core::ffi::c_void,  // IUnknown*
        pCallback: *mut core::ffi::c_void,  // IMFAsyncCallback*
        punkState: *mut core::ffi::c_void,  // IUnknown*
        ppAsyncResult: *mut *mut core::ffi::c_void  // IMFAsyncResult** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MFPlat.dll")]
public static extern int MFCreateAsyncResult(IntPtr punkObject, IntPtr pCallback, IntPtr punkState, IntPtr ppAsyncResult);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFCreateAsyncResult' -Namespace Win32 -PassThru
# $api::MFCreateAsyncResult(punkObject, pCallback, punkState, ppAsyncResult)

#uselib "MFPlat.dll"
#func global MFCreateAsyncResult "MFCreateAsyncResult" sptr, sptr, sptr, sptr
; MFCreateAsyncResult punkObject, pCallback, punkState, ppAsyncResult   ; 戻り値は stat
; punkObject : IUnknown* -> "sptr"
; pCallback : IMFAsyncCallback* -> "sptr"
; punkState : IUnknown* -> "sptr"
; ppAsyncResult : IMFAsyncResult** 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 "MFPlat.dll"
#cfunc global MFCreateAsyncResult "MFCreateAsyncResult" sptr, sptr, sptr, sptr
; res = MFCreateAsyncResult(punkObject, pCallback, punkState, ppAsyncResult)
; punkObject : IUnknown* -> "sptr"
; pCallback : IMFAsyncCallback* -> "sptr"
; punkState : IUnknown* -> "sptr"
; ppAsyncResult : IMFAsyncResult** out -> "sptr"

; HRESULT MFCreateAsyncResult(IUnknown* punkObject, IMFAsyncCallback* pCallback, IUnknown* punkState, IMFAsyncResult** ppAsyncResult)
#uselib "MFPlat.dll"
#cfunc global MFCreateAsyncResult "MFCreateAsyncResult" intptr, intptr, intptr, intptr
; res = MFCreateAsyncResult(punkObject, pCallback, punkState, ppAsyncResult)
; punkObject : IUnknown* -> "intptr"
; pCallback : IMFAsyncCallback* -> "intptr"
; punkState : IUnknown* -> "intptr"
; ppAsyncResult : IMFAsyncResult** out -> "intptr"

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

var (
	mfplat = windows.NewLazySystemDLL("MFPlat.dll")
	procMFCreateAsyncResult = mfplat.NewProc("MFCreateAsyncResult")
)

// punkObject (IUnknown*), pCallback (IMFAsyncCallback*), punkState (IUnknown*), ppAsyncResult (IMFAsyncResult** out)
r1, _, err := procMFCreateAsyncResult.Call(
	uintptr(punkObject),
	uintptr(pCallback),
	uintptr(punkState),
	uintptr(ppAsyncResult),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFCreateAsyncResult(
  punkObject: Pointer;   // IUnknown*
  pCallback: Pointer;   // IMFAsyncCallback*
  punkState: Pointer;   // IUnknown*
  ppAsyncResult: Pointer   // IMFAsyncResult** out
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFCreateAsyncResult';

result := DllCall("MFPlat\MFCreateAsyncResult"
    , "Ptr", punkObject   ; IUnknown*
    , "Ptr", pCallback   ; IMFAsyncCallback*
    , "Ptr", punkState   ; IUnknown*
    , "Ptr", ppAsyncResult   ; IMFAsyncResult** out
    , "Int")   ; return: HRESULT

●MFCreateAsyncResult(punkObject, pCallback, punkState, ppAsyncResult) = DLL("MFPlat.dll", "int MFCreateAsyncResult(void*, void*, void*, void*)")
# 呼び出し: MFCreateAsyncResult(punkObject, pCallback, punkState, ppAsyncResult)
# punkObject : IUnknown* -> "void*"
# pCallback : IMFAsyncCallback* -> "void*"
# punkState : IUnknown* -> "void*"
# ppAsyncResult : IMFAsyncResult** 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 "mfplat" fn MFCreateAsyncResult(
    punkObject: ?*anyopaque, // IUnknown*
    pCallback: ?*anyopaque, // IMFAsyncCallback*
    punkState: ?*anyopaque, // IUnknown*
    ppAsyncResult: ?*anyopaque // IMFAsyncResult** out
) callconv(std.os.windows.WINAPI) i32;

proc MFCreateAsyncResult(
    punkObject: pointer,  # IUnknown*
    pCallback: pointer,  # IMFAsyncCallback*
    punkState: pointer,  # IUnknown*
    ppAsyncResult: pointer  # IMFAsyncResult** out
): int32 {.importc: "MFCreateAsyncResult", stdcall, dynlib: "MFPlat.dll".}

pragma(lib, "mfplat");
extern(Windows)
int MFCreateAsyncResult(
    void* punkObject,   // IUnknown*
    void* pCallback,   // IMFAsyncCallback*
    void* punkState,   // IUnknown*
    void* ppAsyncResult   // IMFAsyncResult** out
);

ccall((:MFCreateAsyncResult, "MFPlat.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Ptr{Cvoid}, Ptr{Cvoid}, Ptr{Cvoid}),
      punkObject, pCallback, punkState, ppAsyncResult)
# punkObject : IUnknown* -> Ptr{Cvoid}
# pCallback : IMFAsyncCallback* -> Ptr{Cvoid}
# punkState : IUnknown* -> Ptr{Cvoid}
# ppAsyncResult : IMFAsyncResult** 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 MFCreateAsyncResult(
    void* punkObject,
    void* pCallback,
    void* punkState,
    void* ppAsyncResult);
]]
local mfplat = ffi.load("mfplat")
-- mfplat.MFCreateAsyncResult(punkObject, pCallback, punkState, ppAsyncResult)
-- punkObject : IUnknown*
-- pCallback : IMFAsyncCallback*
-- punkState : IUnknown*
-- ppAsyncResult : IMFAsyncResult** 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('MFPlat.dll');
const MFCreateAsyncResult = lib.func('__stdcall', 'MFCreateAsyncResult', 'int32_t', ['void *', 'void *', 'void *', 'void *']);
// MFCreateAsyncResult(punkObject, pCallback, punkState, ppAsyncResult)
// punkObject : IUnknown* -> 'void *'
// pCallback : IMFAsyncCallback* -> 'void *'
// punkState : IUnknown* -> 'void *'
// ppAsyncResult : IMFAsyncResult** 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("MFPlat.dll", {
  MFCreateAsyncResult: { parameters: ["pointer", "pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.MFCreateAsyncResult(punkObject, pCallback, punkState, ppAsyncResult)
// punkObject : IUnknown* -> "pointer"
// pCallback : IMFAsyncCallback* -> "pointer"
// punkState : IUnknown* -> "pointer"
// ppAsyncResult : IMFAsyncResult** 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 MFCreateAsyncResult(
    void* punkObject,
    void* pCallback,
    void* punkState,
    void* ppAsyncResult);
C, "MFPlat.dll");
// $ffi->MFCreateAsyncResult(punkObject, pCallback, punkState, ppAsyncResult);
// punkObject : IUnknown*
// pCallback : IMFAsyncCallback*
// punkState : IUnknown*
// ppAsyncResult : IMFAsyncResult** 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 Mfplat extends StdCallLibrary {
    Mfplat INSTANCE = Native.load("mfplat", Mfplat.class);
    int MFCreateAsyncResult(
        Pointer punkObject,   // IUnknown*
        Pointer pCallback,   // IMFAsyncCallback*
        Pointer punkState,   // IUnknown*
        Pointer ppAsyncResult   // IMFAsyncResult** out
    );
}

@[Link("mfplat")]
lib LibMFPlat
  fun MFCreateAsyncResult = MFCreateAsyncResult(
    punkObject : Void*,   # IUnknown*
    pCallback : Void*,   # IMFAsyncCallback*
    punkState : Void*,   # IUnknown*
    ppAsyncResult : Void*   # IMFAsyncResult** 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 MFCreateAsyncResultNative = Int32 Function(Pointer<Void>, Pointer<Void>, Pointer<Void>, Pointer<Void>);
typedef MFCreateAsyncResultDart = int Function(Pointer<Void>, Pointer<Void>, Pointer<Void>, Pointer<Void>);
final MFCreateAsyncResult = DynamicLibrary.open('MFPlat.dll')
    .lookupFunction<MFCreateAsyncResultNative, MFCreateAsyncResultDart>('MFCreateAsyncResult');
// punkObject : IUnknown* -> Pointer<Void>
// pCallback : IMFAsyncCallback* -> Pointer<Void>
// punkState : IUnknown* -> Pointer<Void>
// ppAsyncResult : IMFAsyncResult** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function MFCreateAsyncResult(
  punkObject: Pointer;   // IUnknown*
  pCallback: Pointer;   // IMFAsyncCallback*
  punkState: Pointer;   // IUnknown*
  ppAsyncResult: Pointer   // IMFAsyncResult** out
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFCreateAsyncResult';

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

foreign import stdcall safe "MFCreateAsyncResult"
  c_MFCreateAsyncResult :: Ptr () -> Ptr () -> Ptr () -> Ptr () -> IO Int32
-- punkObject : IUnknown* -> Ptr ()
-- pCallback : IMFAsyncCallback* -> Ptr ()
-- punkState : IUnknown* -> Ptr ()
-- ppAsyncResult : IMFAsyncResult** 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 mfcreateasyncresult =
  foreign "MFCreateAsyncResult"
    ((ptr void) @-> (ptr void) @-> (ptr void) @-> (ptr void) @-> returning int32_t)
(* punkObject : IUnknown* -> (ptr void) *)
(* pCallback : IMFAsyncCallback* -> (ptr void) *)
(* punkState : IUnknown* -> (ptr void) *)
(* ppAsyncResult : IMFAsyncResult** 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 mfplat (t "MFPlat.dll"))
(cffi:use-foreign-library mfplat)

(cffi:defcfun ("MFCreateAsyncResult" mfcreate-async-result :convention :stdcall) :int32
  (punk-object :pointer)   ; IUnknown*
  (p-callback :pointer)   ; IMFAsyncCallback*
  (punk-state :pointer)   ; IUnknown*
  (pp-async-result :pointer))   ; IMFAsyncResult** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $MFCreateAsyncResult = Win32::API::More->new('MFPlat',
    'int MFCreateAsyncResult(LPVOID punkObject, LPVOID pCallback, LPVOID punkState, LPVOID ppAsyncResult)');
# my $ret = $MFCreateAsyncResult->Call($punkObject, $pCallback, $punkState, $ppAsyncResult);
# punkObject : IUnknown* -> LPVOID
# pCallback : IMFAsyncCallback* -> LPVOID
# punkState : IUnknown* -> LPVOID
# ppAsyncResult : IMFAsyncResult** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。