MFCreateMediaExtensionActivate

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

HRESULT MFCreateMediaExtensionActivate(
    LPCWSTR szActivatableClassId,
    IUnknown* pConfiguration,   // optional
    const GUID* riid,
    void** ppvObject
);

<DllImport("MFPlat.dll", ExactSpelling:=True)>
Public Shared Function MFCreateMediaExtensionActivate(
    <MarshalAs(UnmanagedType.LPWStr)> szActivatableClassId As String,   ' LPCWSTR
    pConfiguration As IntPtr,   ' IUnknown* optional
    ByRef riid As Guid,   ' GUID*
    ppvObject As IntPtr   ' void** out
) As Integer
End Function

' szActivatableClassId : LPCWSTR
' pConfiguration : IUnknown* optional
' riid : GUID*
' ppvObject : void** out
Declare PtrSafe Function MFCreateMediaExtensionActivate Lib "mfplat" ( _
    ByVal szActivatableClassId As LongPtr, _
    ByVal pConfiguration As LongPtr, _
    ByVal riid As LongPtr, _
    ByVal ppvObject 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

MFCreateMediaExtensionActivate = ctypes.windll.mfplat.MFCreateMediaExtensionActivate
MFCreateMediaExtensionActivate.restype = ctypes.c_int
MFCreateMediaExtensionActivate.argtypes = [
    wintypes.LPCWSTR,  # szActivatableClassId : LPCWSTR
    ctypes.c_void_p,  # pConfiguration : IUnknown* optional
    ctypes.c_void_p,  # riid : GUID*
    ctypes.c_void_p,  # ppvObject : void** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.dll')
MFCreateMediaExtensionActivate = Fiddle::Function.new(
  lib['MFCreateMediaExtensionActivate'],
  [
    Fiddle::TYPE_VOIDP,  # szActivatableClassId : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pConfiguration : IUnknown* optional
    Fiddle::TYPE_VOIDP,  # riid : GUID*
    Fiddle::TYPE_VOIDP,  # ppvObject : void** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mfplat")]
extern "system" {
    fn MFCreateMediaExtensionActivate(
        szActivatableClassId: *const u16,  // LPCWSTR
        pConfiguration: *mut core::ffi::c_void,  // IUnknown* optional
        riid: *const GUID,  // GUID*
        ppvObject: *mut *mut ()  // void** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MFPlat.dll")]
public static extern int MFCreateMediaExtensionActivate([MarshalAs(UnmanagedType.LPWStr)] string szActivatableClassId, IntPtr pConfiguration, ref Guid riid, IntPtr ppvObject);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFCreateMediaExtensionActivate' -Namespace Win32 -PassThru
# $api::MFCreateMediaExtensionActivate(szActivatableClassId, pConfiguration, riid, ppvObject)

#uselib "MFPlat.dll"
#func global MFCreateMediaExtensionActivate "MFCreateMediaExtensionActivate" sptr, sptr, sptr, sptr
; MFCreateMediaExtensionActivate szActivatableClassId, pConfiguration, varptr(riid), ppvObject   ; 戻り値は stat
; szActivatableClassId : LPCWSTR -> "sptr"
; pConfiguration : IUnknown* optional -> "sptr"
; riid : GUID* -> "sptr"
; ppvObject : void** 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 (
	mfplat = windows.NewLazySystemDLL("MFPlat.dll")
	procMFCreateMediaExtensionActivate = mfplat.NewProc("MFCreateMediaExtensionActivate")
)

// szActivatableClassId (LPCWSTR), pConfiguration (IUnknown* optional), riid (GUID*), ppvObject (void** out)
r1, _, err := procMFCreateMediaExtensionActivate.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(szActivatableClassId))),
	uintptr(pConfiguration),
	uintptr(riid),
	uintptr(ppvObject),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFCreateMediaExtensionActivate(
  szActivatableClassId: PWideChar;   // LPCWSTR
  pConfiguration: Pointer;   // IUnknown* optional
  riid: PGUID;   // GUID*
  ppvObject: Pointer   // void** out
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFCreateMediaExtensionActivate';

result := DllCall("MFPlat\MFCreateMediaExtensionActivate"
    , "WStr", szActivatableClassId   ; LPCWSTR
    , "Ptr", pConfiguration   ; IUnknown* optional
    , "Ptr", riid   ; GUID*
    , "Ptr", ppvObject   ; void** out
    , "Int")   ; return: HRESULT

●MFCreateMediaExtensionActivate(szActivatableClassId, pConfiguration, riid, ppvObject) = DLL("MFPlat.dll", "int MFCreateMediaExtensionActivate(char*, void*, void*, void*)")
# 呼び出し: MFCreateMediaExtensionActivate(szActivatableClassId, pConfiguration, riid, ppvObject)
# szActivatableClassId : LPCWSTR -> "char*"
# pConfiguration : IUnknown* optional -> "void*"
# riid : GUID* -> "void*"
# ppvObject : void** 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 MFCreateMediaExtensionActivate(
    szActivatableClassId: [*c]const u16, // LPCWSTR
    pConfiguration: ?*anyopaque, // IUnknown* optional
    riid: [*c]GUID, // GUID*
    ppvObject: ?*anyopaque // void** out
) callconv(std.os.windows.WINAPI) i32;

proc MFCreateMediaExtensionActivate(
    szActivatableClassId: WideCString,  # LPCWSTR
    pConfiguration: pointer,  # IUnknown* optional
    riid: ptr GUID,  # GUID*
    ppvObject: pointer  # void** out
): int32 {.importc: "MFCreateMediaExtensionActivate", stdcall, dynlib: "MFPlat.dll".}

pragma(lib, "mfplat");
extern(Windows)
int MFCreateMediaExtensionActivate(
    const(wchar)* szActivatableClassId,   // LPCWSTR
    void* pConfiguration,   // IUnknown* optional
    GUID* riid,   // GUID*
    void** ppvObject   // void** out
);

ccall((:MFCreateMediaExtensionActivate, "MFPlat.dll"), stdcall, Int32,
      (Cwstring, Ptr{Cvoid}, Ptr{GUID}, Ptr{Cvoid}),
      szActivatableClassId, pConfiguration, riid, ppvObject)
# szActivatableClassId : LPCWSTR -> Cwstring
# pConfiguration : IUnknown* optional -> Ptr{Cvoid}
# riid : GUID* -> Ptr{GUID}
# ppvObject : void** 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 MFCreateMediaExtensionActivate(
    const uint16_t* szActivatableClassId,
    void* pConfiguration,
    void* riid,
    void** ppvObject);
]]
local mfplat = ffi.load("mfplat")
-- mfplat.MFCreateMediaExtensionActivate(szActivatableClassId, pConfiguration, riid, ppvObject)
-- szActivatableClassId : LPCWSTR
-- pConfiguration : IUnknown* optional
-- riid : GUID*
-- ppvObject : void** 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 MFCreateMediaExtensionActivate = lib.func('__stdcall', 'MFCreateMediaExtensionActivate', 'int32_t', ['str16', 'void *', 'void *', 'void *']);
// MFCreateMediaExtensionActivate(szActivatableClassId, pConfiguration, riid, ppvObject)
// szActivatableClassId : LPCWSTR -> 'str16'
// pConfiguration : IUnknown* optional -> 'void *'
// riid : GUID* -> 'void *'
// ppvObject : void** 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", {
  MFCreateMediaExtensionActivate: { parameters: ["buffer", "pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.MFCreateMediaExtensionActivate(szActivatableClassId, pConfiguration, riid, ppvObject)
// szActivatableClassId : LPCWSTR -> "buffer"
// pConfiguration : IUnknown* optional -> "pointer"
// riid : GUID* -> "pointer"
// ppvObject : void** 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 MFCreateMediaExtensionActivate(
    const uint16_t* szActivatableClassId,
    void* pConfiguration,
    void* riid,
    void** ppvObject);
C, "MFPlat.dll");
// $ffi->MFCreateMediaExtensionActivate(szActivatableClassId, pConfiguration, riid, ppvObject);
// szActivatableClassId : LPCWSTR
// pConfiguration : IUnknown* optional
// riid : GUID*
// ppvObject : void** 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 MFCreateMediaExtensionActivate(
        WString szActivatableClassId,   // LPCWSTR
        Pointer pConfiguration,   // IUnknown* optional
        Pointer riid,   // GUID*
        Pointer ppvObject   // void** out
    );
}

@[Link("mfplat")]
lib LibMFPlat
  fun MFCreateMediaExtensionActivate = MFCreateMediaExtensionActivate(
    szActivatableClassId : UInt16*,   # LPCWSTR
    pConfiguration : Void*,   # IUnknown* optional
    riid : GUID*,   # GUID*
    ppvObject : Void**   # void** 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 MFCreateMediaExtensionActivateNative = Int32 Function(Pointer<Utf16>, Pointer<Void>, Pointer<Void>, Pointer<Void>);
typedef MFCreateMediaExtensionActivateDart = int Function(Pointer<Utf16>, Pointer<Void>, Pointer<Void>, Pointer<Void>);
final MFCreateMediaExtensionActivate = DynamicLibrary.open('MFPlat.dll')
    .lookupFunction<MFCreateMediaExtensionActivateNative, MFCreateMediaExtensionActivateDart>('MFCreateMediaExtensionActivate');
// szActivatableClassId : LPCWSTR -> Pointer<Utf16>
// pConfiguration : IUnknown* optional -> Pointer<Void>
// riid : GUID* -> Pointer<Void>
// ppvObject : void** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function MFCreateMediaExtensionActivate(
  szActivatableClassId: PWideChar;   // LPCWSTR
  pConfiguration: Pointer;   // IUnknown* optional
  riid: PGUID;   // GUID*
  ppvObject: Pointer   // void** out
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFCreateMediaExtensionActivate';

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

foreign import stdcall safe "MFCreateMediaExtensionActivate"
  c_MFCreateMediaExtensionActivate :: CWString -> Ptr () -> Ptr () -> Ptr () -> IO Int32
-- szActivatableClassId : LPCWSTR -> CWString
-- pConfiguration : IUnknown* optional -> Ptr ()
-- riid : GUID* -> Ptr ()
-- ppvObject : void** 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 mfcreatemediaextensionactivate =
  foreign "MFCreateMediaExtensionActivate"
    ((ptr uint16_t) @-> (ptr void) @-> (ptr void) @-> (ptr void) @-> returning int32_t)
(* szActivatableClassId : LPCWSTR -> (ptr uint16_t) *)
(* pConfiguration : IUnknown* optional -> (ptr void) *)
(* riid : GUID* -> (ptr void) *)
(* ppvObject : void** 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 ("MFCreateMediaExtensionActivate" mfcreate-media-extension-activate :convention :stdcall) :int32
  (sz-activatable-class-id (:string :encoding :utf-16le))   ; LPCWSTR
  (p-configuration :pointer)   ; IUnknown* optional
  (riid :pointer)   ; GUID*
  (ppv-object :pointer))   ; void** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $MFCreateMediaExtensionActivate = Win32::API::More->new('MFPlat',
    'int MFCreateMediaExtensionActivate(LPCWSTR szActivatableClassId, LPVOID pConfiguration, LPVOID riid, LPVOID ppvObject)');
# my $ret = $MFCreateMediaExtensionActivate->Call($szActivatableClassId, $pConfiguration, $riid, $ppvObject);
# szActivatableClassId : LPCWSTR -> LPCWSTR
# pConfiguration : IUnknown* optional -> LPVOID
# riid : GUID* -> LPVOID
# ppvObject : void** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。