WMCreateReader

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

HRESULT WMCreateReader(
    IUnknown* pUnkCert,
    DWORD dwRights,
    IWMReader** ppReader
);

<DllImport("WMVCore.dll", ExactSpelling:=True)>
Public Shared Function WMCreateReader(
    pUnkCert As IntPtr,   ' IUnknown*
    dwRights As UInteger,   ' DWORD
    ppReader As IntPtr   ' IWMReader** out
) As Integer
End Function

' pUnkCert : IUnknown*
' dwRights : DWORD
' ppReader : IWMReader** out
Declare PtrSafe Function WMCreateReader Lib "wmvcore" ( _
    ByVal pUnkCert As LongPtr, _
    ByVal dwRights As Long, _
    ByVal ppReader 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

WMCreateReader = ctypes.windll.wmvcore.WMCreateReader
WMCreateReader.restype = ctypes.c_int
WMCreateReader.argtypes = [
    ctypes.c_void_p,  # pUnkCert : IUnknown*
    wintypes.DWORD,  # dwRights : DWORD
    ctypes.c_void_p,  # ppReader : IWMReader** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WMVCore.dll')
WMCreateReader = Fiddle::Function.new(
  lib['WMCreateReader'],
  [
    Fiddle::TYPE_VOIDP,  # pUnkCert : IUnknown*
    -Fiddle::TYPE_INT,  # dwRights : DWORD
    Fiddle::TYPE_VOIDP,  # ppReader : IWMReader** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "wmvcore")]
extern "system" {
    fn WMCreateReader(
        pUnkCert: *mut core::ffi::c_void,  // IUnknown*
        dwRights: u32,  // DWORD
        ppReader: *mut *mut core::ffi::c_void  // IWMReader** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WMVCore.dll")]
public static extern int WMCreateReader(IntPtr pUnkCert, uint dwRights, IntPtr ppReader);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WMVCore_WMCreateReader' -Namespace Win32 -PassThru
# $api::WMCreateReader(pUnkCert, dwRights, ppReader)

#uselib "WMVCore.dll"
#func global WMCreateReader "WMCreateReader" sptr, sptr, sptr
; WMCreateReader pUnkCert, dwRights, ppReader   ; 戻り値は stat
; pUnkCert : IUnknown* -> "sptr"
; dwRights : DWORD -> "sptr"
; ppReader : IWMReader** 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 "WMVCore.dll"
#cfunc global WMCreateReader "WMCreateReader" sptr, int, sptr
; res = WMCreateReader(pUnkCert, dwRights, ppReader)
; pUnkCert : IUnknown* -> "sptr"
; dwRights : DWORD -> "int"
; ppReader : IWMReader** out -> "sptr"

; HRESULT WMCreateReader(IUnknown* pUnkCert, DWORD dwRights, IWMReader** ppReader)
#uselib "WMVCore.dll"
#cfunc global WMCreateReader "WMCreateReader" intptr, int, intptr
; res = WMCreateReader(pUnkCert, dwRights, ppReader)
; pUnkCert : IUnknown* -> "intptr"
; dwRights : DWORD -> "int"
; ppReader : IWMReader** out -> "intptr"

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

var (
	wmvcore = windows.NewLazySystemDLL("WMVCore.dll")
	procWMCreateReader = wmvcore.NewProc("WMCreateReader")
)

// pUnkCert (IUnknown*), dwRights (DWORD), ppReader (IWMReader** out)
r1, _, err := procWMCreateReader.Call(
	uintptr(pUnkCert),
	uintptr(dwRights),
	uintptr(ppReader),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function WMCreateReader(
  pUnkCert: Pointer;   // IUnknown*
  dwRights: DWORD;   // DWORD
  ppReader: Pointer   // IWMReader** out
): Integer; stdcall;
  external 'WMVCore.dll' name 'WMCreateReader';

result := DllCall("WMVCore\WMCreateReader"
    , "Ptr", pUnkCert   ; IUnknown*
    , "UInt", dwRights   ; DWORD
    , "Ptr", ppReader   ; IWMReader** out
    , "Int")   ; return: HRESULT

●WMCreateReader(pUnkCert, dwRights, ppReader) = DLL("WMVCore.dll", "int WMCreateReader(void*, dword, void*)")
# 呼び出し: WMCreateReader(pUnkCert, dwRights, ppReader)
# pUnkCert : IUnknown* -> "void*"
# dwRights : DWORD -> "dword"
# ppReader : IWMReader** 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 "wmvcore" fn WMCreateReader(
    pUnkCert: ?*anyopaque, // IUnknown*
    dwRights: u32, // DWORD
    ppReader: ?*anyopaque // IWMReader** out
) callconv(std.os.windows.WINAPI) i32;

proc WMCreateReader(
    pUnkCert: pointer,  # IUnknown*
    dwRights: uint32,  # DWORD
    ppReader: pointer  # IWMReader** out
): int32 {.importc: "WMCreateReader", stdcall, dynlib: "WMVCore.dll".}

pragma(lib, "wmvcore");
extern(Windows)
int WMCreateReader(
    void* pUnkCert,   // IUnknown*
    uint dwRights,   // DWORD
    void* ppReader   // IWMReader** out
);

ccall((:WMCreateReader, "WMVCore.dll"), stdcall, Int32,
      (Ptr{Cvoid}, UInt32, Ptr{Cvoid}),
      pUnkCert, dwRights, ppReader)
# pUnkCert : IUnknown* -> Ptr{Cvoid}
# dwRights : DWORD -> UInt32
# ppReader : IWMReader** 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 WMCreateReader(
    void* pUnkCert,
    uint32_t dwRights,
    void* ppReader);
]]
local wmvcore = ffi.load("wmvcore")
-- wmvcore.WMCreateReader(pUnkCert, dwRights, ppReader)
-- pUnkCert : IUnknown*
-- dwRights : DWORD
-- ppReader : IWMReader** 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('WMVCore.dll');
const WMCreateReader = lib.func('__stdcall', 'WMCreateReader', 'int32_t', ['void *', 'uint32_t', 'void *']);
// WMCreateReader(pUnkCert, dwRights, ppReader)
// pUnkCert : IUnknown* -> 'void *'
// dwRights : DWORD -> 'uint32_t'
// ppReader : IWMReader** 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("WMVCore.dll", {
  WMCreateReader: { parameters: ["pointer", "u32", "pointer"], result: "i32" },
});
// lib.symbols.WMCreateReader(pUnkCert, dwRights, ppReader)
// pUnkCert : IUnknown* -> "pointer"
// dwRights : DWORD -> "u32"
// ppReader : IWMReader** 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 WMCreateReader(
    void* pUnkCert,
    uint32_t dwRights,
    void* ppReader);
C, "WMVCore.dll");
// $ffi->WMCreateReader(pUnkCert, dwRights, ppReader);
// pUnkCert : IUnknown*
// dwRights : DWORD
// ppReader : IWMReader** 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 Wmvcore extends StdCallLibrary {
    Wmvcore INSTANCE = Native.load("wmvcore", Wmvcore.class);
    int WMCreateReader(
        Pointer pUnkCert,   // IUnknown*
        int dwRights,   // DWORD
        Pointer ppReader   // IWMReader** out
    );
}

@[Link("wmvcore")]
lib LibWMVCore
  fun WMCreateReader = WMCreateReader(
    pUnkCert : Void*,   # IUnknown*
    dwRights : UInt32,   # DWORD
    ppReader : Void*   # IWMReader** 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 WMCreateReaderNative = Int32 Function(Pointer<Void>, Uint32, Pointer<Void>);
typedef WMCreateReaderDart = int Function(Pointer<Void>, int, Pointer<Void>);
final WMCreateReader = DynamicLibrary.open('WMVCore.dll')
    .lookupFunction<WMCreateReaderNative, WMCreateReaderDart>('WMCreateReader');
// pUnkCert : IUnknown* -> Pointer<Void>
// dwRights : DWORD -> Uint32
// ppReader : IWMReader** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function WMCreateReader(
  pUnkCert: Pointer;   // IUnknown*
  dwRights: DWORD;   // DWORD
  ppReader: Pointer   // IWMReader** out
): Integer; stdcall;
  external 'WMVCore.dll' name 'WMCreateReader';

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

foreign import stdcall safe "WMCreateReader"
  c_WMCreateReader :: Ptr () -> Word32 -> Ptr () -> IO Int32
-- pUnkCert : IUnknown* -> Ptr ()
-- dwRights : DWORD -> Word32
-- ppReader : IWMReader** 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 wmcreatereader =
  foreign "WMCreateReader"
    ((ptr void) @-> uint32_t @-> (ptr void) @-> returning int32_t)
(* pUnkCert : IUnknown* -> (ptr void) *)
(* dwRights : DWORD -> uint32_t *)
(* ppReader : IWMReader** 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 wmvcore (t "WMVCore.dll"))
(cffi:use-foreign-library wmvcore)

(cffi:defcfun ("WMCreateReader" wmcreate-reader :convention :stdcall) :int32
  (p-unk-cert :pointer)   ; IUnknown*
  (dw-rights :uint32)   ; DWORD
  (pp-reader :pointer))   ; IWMReader** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $WMCreateReader = Win32::API::More->new('WMVCore',
    'int WMCreateReader(LPVOID pUnkCert, DWORD dwRights, LPVOID ppReader)');
# my $ret = $WMCreateReader->Call($pUnkCert, $dwRights, $ppReader);
# pUnkCert : IUnknown* -> LPVOID
# dwRights : DWORD -> DWORD
# ppReader : IWMReader** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。