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DMORegister

関数

入出力メディアタイプを指定してDMOをレジストリに登録する。

DLLmsdmo.dll呼出規約winapi

シグネチャ

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

HRESULT DMORegister(
    LPCWSTR szName,
    const GUID* clsidDMO,
    const GUID* guidCategory,
    DWORD dwFlags,
    DWORD cInTypes,
    const DMO_PARTIAL_MEDIATYPE* pInTypes,
    DWORD cOutTypes,
    const DMO_PARTIAL_MEDIATYPE* pOutTypes
);

パラメーター

名前	型	方向	説明
szName	LPCWSTR	in	登録するDMOの表示名を示すワイド文字列。
clsidDMO	GUID*	in	登録対象DMOのクラスID(CLSID)を指すGUIDへのポインター。
guidCategory	GUID*	in	DMOを分類するカテゴリーGUIDへのポインター。検索時の絞り込みに使われる。
dwFlags	DWORD	in	登録オプションを指定するフラグ。DMO_REGISTERF_IS_KEYED等を指定する。
cInTypes	DWORD	in	pInTypes配列が持つ入力メディア型の要素数。
pInTypes	DMO_PARTIAL_MEDIATYPE*	in	サポートする入力メディア型を示すDMO_PARTIAL_MEDIATYPE配列へのポインター。
cOutTypes	DWORD	in	pOutTypes配列が持つ出力メディア型の要素数。
pOutTypes	DMO_PARTIAL_MEDIATYPE*	in	サポートする出力メディア型を示すDMO_PARTIAL_MEDIATYPE配列へのポインター。

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT DMORegister(
    LPCWSTR szName,
    const GUID* clsidDMO,
    const GUID* guidCategory,
    DWORD dwFlags,
    DWORD cInTypes,
    const DMO_PARTIAL_MEDIATYPE* pInTypes,
    DWORD cOutTypes,
    const DMO_PARTIAL_MEDIATYPE* pOutTypes
);

[DllImport("msdmo.dll", ExactSpelling = true)]
static extern int DMORegister(
    [MarshalAs(UnmanagedType.LPWStr)] string szName,   // LPCWSTR
    ref Guid clsidDMO,   // GUID*
    ref Guid guidCategory,   // GUID*
    uint dwFlags,   // DWORD
    uint cInTypes,   // DWORD
    IntPtr pInTypes,   // DMO_PARTIAL_MEDIATYPE*
    uint cOutTypes,   // DWORD
    IntPtr pOutTypes   // DMO_PARTIAL_MEDIATYPE*
);

<DllImport("msdmo.dll", ExactSpelling:=True)>
Public Shared Function DMORegister(
    <MarshalAs(UnmanagedType.LPWStr)> szName As String,   ' LPCWSTR
    ByRef clsidDMO As Guid,   ' GUID*
    ByRef guidCategory As Guid,   ' GUID*
    dwFlags As UInteger,   ' DWORD
    cInTypes As UInteger,   ' DWORD
    pInTypes As IntPtr,   ' DMO_PARTIAL_MEDIATYPE*
    cOutTypes As UInteger,   ' DWORD
    pOutTypes As IntPtr   ' DMO_PARTIAL_MEDIATYPE*
) As Integer
End Function

' szName : LPCWSTR
' clsidDMO : GUID*
' guidCategory : GUID*
' dwFlags : DWORD
' cInTypes : DWORD
' pInTypes : DMO_PARTIAL_MEDIATYPE*
' cOutTypes : DWORD
' pOutTypes : DMO_PARTIAL_MEDIATYPE*
Declare PtrSafe Function DMORegister Lib "msdmo" ( _
    ByVal szName As LongPtr, _
    ByVal clsidDMO As LongPtr, _
    ByVal guidCategory As LongPtr, _
    ByVal dwFlags As Long, _
    ByVal cInTypes As Long, _
    ByVal pInTypes As LongPtr, _
    ByVal cOutTypes As Long, _
    ByVal pOutTypes 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

DMORegister = ctypes.windll.msdmo.DMORegister
DMORegister.restype = ctypes.c_int
DMORegister.argtypes = [
    wintypes.LPCWSTR,  # szName : LPCWSTR
    ctypes.c_void_p,  # clsidDMO : GUID*
    ctypes.c_void_p,  # guidCategory : GUID*
    wintypes.DWORD,  # dwFlags : DWORD
    wintypes.DWORD,  # cInTypes : DWORD
    ctypes.c_void_p,  # pInTypes : DMO_PARTIAL_MEDIATYPE*
    wintypes.DWORD,  # cOutTypes : DWORD
    ctypes.c_void_p,  # pOutTypes : DMO_PARTIAL_MEDIATYPE*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msdmo.dll')
DMORegister = Fiddle::Function.new(
  lib['DMORegister'],
  [
    Fiddle::TYPE_VOIDP,  # szName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # clsidDMO : GUID*
    Fiddle::TYPE_VOIDP,  # guidCategory : GUID*
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    -Fiddle::TYPE_INT,  # cInTypes : DWORD
    Fiddle::TYPE_VOIDP,  # pInTypes : DMO_PARTIAL_MEDIATYPE*
    -Fiddle::TYPE_INT,  # cOutTypes : DWORD
    Fiddle::TYPE_VOIDP,  # pOutTypes : DMO_PARTIAL_MEDIATYPE*
  ],
  Fiddle::TYPE_INT)

#[link(name = "msdmo")]
extern "system" {
    fn DMORegister(
        szName: *const u16,  // LPCWSTR
        clsidDMO: *const GUID,  // GUID*
        guidCategory: *const GUID,  // GUID*
        dwFlags: u32,  // DWORD
        cInTypes: u32,  // DWORD
        pInTypes: *const DMO_PARTIAL_MEDIATYPE,  // DMO_PARTIAL_MEDIATYPE*
        cOutTypes: u32,  // DWORD
        pOutTypes: *const DMO_PARTIAL_MEDIATYPE  // DMO_PARTIAL_MEDIATYPE*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("msdmo.dll")]
public static extern int DMORegister([MarshalAs(UnmanagedType.LPWStr)] string szName, ref Guid clsidDMO, ref Guid guidCategory, uint dwFlags, uint cInTypes, IntPtr pInTypes, uint cOutTypes, IntPtr pOutTypes);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msdmo_DMORegister' -Namespace Win32 -PassThru
# $api::DMORegister(szName, clsidDMO, guidCategory, dwFlags, cInTypes, pInTypes, cOutTypes, pOutTypes)

#uselib "msdmo.dll"
#func global DMORegister "DMORegister" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; DMORegister szName, varptr(clsidDMO), varptr(guidCategory), dwFlags, cInTypes, varptr(pInTypes), cOutTypes, varptr(pOutTypes)   ; 戻り値は stat
; szName : LPCWSTR -> "sptr"
; clsidDMO : GUID* -> "sptr"
; guidCategory : GUID* -> "sptr"
; dwFlags : DWORD -> "sptr"
; cInTypes : DWORD -> "sptr"
; pInTypes : DMO_PARTIAL_MEDIATYPE* -> "sptr"
; cOutTypes : DWORD -> "sptr"
; pOutTypes : DMO_PARTIAL_MEDIATYPE* -> "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。

出力引数:

#uselib "msdmo.dll"
#cfunc global DMORegister "DMORegister" wstr, var, var, int, int, var, int, var
; res = DMORegister(szName, clsidDMO, guidCategory, dwFlags, cInTypes, pInTypes, cOutTypes, pOutTypes)
; szName : LPCWSTR -> "wstr"
; clsidDMO : GUID* -> "var"
; guidCategory : GUID* -> "var"
; dwFlags : DWORD -> "int"
; cInTypes : DWORD -> "int"
; pInTypes : DMO_PARTIAL_MEDIATYPE* -> "var"
; cOutTypes : DWORD -> "int"
; pOutTypes : DMO_PARTIAL_MEDIATYPE* -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。#uselib "msdmo.dll"
#cfunc global DMORegister "DMORegister" wstr, sptr, sptr, int, int, sptr, int, sptr
; res = DMORegister(szName, varptr(clsidDMO), varptr(guidCategory), dwFlags, cInTypes, varptr(pInTypes), cOutTypes, varptr(pOutTypes))
; szName : LPCWSTR -> "wstr"
; clsidDMO : GUID* -> "sptr"
; guidCategory : GUID* -> "sptr"
; dwFlags : DWORD -> "int"
; cInTypes : DWORD -> "int"
; pInTypes : DMO_PARTIAL_MEDIATYPE* -> "sptr"
; cOutTypes : DWORD -> "int"
; pOutTypes : DMO_PARTIAL_MEDIATYPE* -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; HRESULT DMORegister(LPCWSTR szName, GUID* clsidDMO, GUID* guidCategory, DWORD dwFlags, DWORD cInTypes, DMO_PARTIAL_MEDIATYPE* pInTypes, DWORD cOutTypes, DMO_PARTIAL_MEDIATYPE* pOutTypes)
#uselib "msdmo.dll"
#cfunc global DMORegister "DMORegister" wstr, var, var, int, int, var, int, var
; res = DMORegister(szName, clsidDMO, guidCategory, dwFlags, cInTypes, pInTypes, cOutTypes, pOutTypes)
; szName : LPCWSTR -> "wstr"
; clsidDMO : GUID* -> "var"
; guidCategory : GUID* -> "var"
; dwFlags : DWORD -> "int"
; cInTypes : DWORD -> "int"
; pInTypes : DMO_PARTIAL_MEDIATYPE* -> "var"
; cOutTypes : DWORD -> "int"
; pOutTypes : DMO_PARTIAL_MEDIATYPE* -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。; HRESULT DMORegister(LPCWSTR szName, GUID* clsidDMO, GUID* guidCategory, DWORD dwFlags, DWORD cInTypes, DMO_PARTIAL_MEDIATYPE* pInTypes, DWORD cOutTypes, DMO_PARTIAL_MEDIATYPE* pOutTypes)
#uselib "msdmo.dll"
#cfunc global DMORegister "DMORegister" wstr, intptr, intptr, int, int, intptr, int, intptr
; res = DMORegister(szName, varptr(clsidDMO), varptr(guidCategory), dwFlags, cInTypes, varptr(pInTypes), cOutTypes, varptr(pOutTypes))
; szName : LPCWSTR -> "wstr"
; clsidDMO : GUID* -> "intptr"
; guidCategory : GUID* -> "intptr"
; dwFlags : DWORD -> "int"
; cInTypes : DWORD -> "int"
; pInTypes : DMO_PARTIAL_MEDIATYPE* -> "intptr"
; cOutTypes : DWORD -> "int"
; pOutTypes : DMO_PARTIAL_MEDIATYPE* -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

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

var (
	msdmo = windows.NewLazySystemDLL("msdmo.dll")
	procDMORegister = msdmo.NewProc("DMORegister")
)

// szName (LPCWSTR), clsidDMO (GUID*), guidCategory (GUID*), dwFlags (DWORD), cInTypes (DWORD), pInTypes (DMO_PARTIAL_MEDIATYPE*), cOutTypes (DWORD), pOutTypes (DMO_PARTIAL_MEDIATYPE*)
r1, _, err := procDMORegister.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(szName))),
	uintptr(clsidDMO),
	uintptr(guidCategory),
	uintptr(dwFlags),
	uintptr(cInTypes),
	uintptr(pInTypes),
	uintptr(cOutTypes),
	uintptr(pOutTypes),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DMORegister(
  szName: PWideChar;   // LPCWSTR
  clsidDMO: PGUID;   // GUID*
  guidCategory: PGUID;   // GUID*
  dwFlags: DWORD;   // DWORD
  cInTypes: DWORD;   // DWORD
  pInTypes: Pointer;   // DMO_PARTIAL_MEDIATYPE*
  cOutTypes: DWORD;   // DWORD
  pOutTypes: Pointer   // DMO_PARTIAL_MEDIATYPE*
): Integer; stdcall;
  external 'msdmo.dll' name 'DMORegister';

result := DllCall("msdmo\DMORegister"
    , "WStr", szName   ; LPCWSTR
    , "Ptr", clsidDMO   ; GUID*
    , "Ptr", guidCategory   ; GUID*
    , "UInt", dwFlags   ; DWORD
    , "UInt", cInTypes   ; DWORD
    , "Ptr", pInTypes   ; DMO_PARTIAL_MEDIATYPE*
    , "UInt", cOutTypes   ; DWORD
    , "Ptr", pOutTypes   ; DMO_PARTIAL_MEDIATYPE*
    , "Int")   ; return: HRESULT

●DMORegister(szName, clsidDMO, guidCategory, dwFlags, cInTypes, pInTypes, cOutTypes, pOutTypes) = DLL("msdmo.dll", "int DMORegister(char*, void*, void*, dword, dword, void*, dword, void*)")
# 呼び出し: DMORegister(szName, clsidDMO, guidCategory, dwFlags, cInTypes, pInTypes, cOutTypes, pOutTypes)
# szName : LPCWSTR -> "char*"
# clsidDMO : GUID* -> "void*"
# guidCategory : GUID* -> "void*"
# dwFlags : DWORD -> "dword"
# cInTypes : DWORD -> "dword"
# pInTypes : DMO_PARTIAL_MEDIATYPE* -> "void*"
# cOutTypes : DWORD -> "dword"
# pOutTypes : DMO_PARTIAL_MEDIATYPE* -> "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 "msdmo" fn DMORegister(
    szName: [*c]const u16, // LPCWSTR
    clsidDMO: [*c]GUID, // GUID*
    guidCategory: [*c]GUID, // GUID*
    dwFlags: u32, // DWORD
    cInTypes: u32, // DWORD
    pInTypes: [*c]DMO_PARTIAL_MEDIATYPE, // DMO_PARTIAL_MEDIATYPE*
    cOutTypes: u32, // DWORD
    pOutTypes: [*c]DMO_PARTIAL_MEDIATYPE // DMO_PARTIAL_MEDIATYPE*
) callconv(std.os.windows.WINAPI) i32;

proc DMORegister(
    szName: WideCString,  # LPCWSTR
    clsidDMO: ptr GUID,  # GUID*
    guidCategory: ptr GUID,  # GUID*
    dwFlags: uint32,  # DWORD
    cInTypes: uint32,  # DWORD
    pInTypes: ptr DMO_PARTIAL_MEDIATYPE,  # DMO_PARTIAL_MEDIATYPE*
    cOutTypes: uint32,  # DWORD
    pOutTypes: ptr DMO_PARTIAL_MEDIATYPE  # DMO_PARTIAL_MEDIATYPE*
): int32 {.importc: "DMORegister", stdcall, dynlib: "msdmo.dll".}

pragma(lib, "msdmo");
extern(Windows)
int DMORegister(
    const(wchar)* szName,   // LPCWSTR
    GUID* clsidDMO,   // GUID*
    GUID* guidCategory,   // GUID*
    uint dwFlags,   // DWORD
    uint cInTypes,   // DWORD
    DMO_PARTIAL_MEDIATYPE* pInTypes,   // DMO_PARTIAL_MEDIATYPE*
    uint cOutTypes,   // DWORD
    DMO_PARTIAL_MEDIATYPE* pOutTypes   // DMO_PARTIAL_MEDIATYPE*
);

ccall((:DMORegister, "msdmo.dll"), stdcall, Int32,
      (Cwstring, Ptr{GUID}, Ptr{GUID}, UInt32, UInt32, Ptr{DMO_PARTIAL_MEDIATYPE}, UInt32, Ptr{DMO_PARTIAL_MEDIATYPE}),
      szName, clsidDMO, guidCategory, dwFlags, cInTypes, pInTypes, cOutTypes, pOutTypes)
# szName : LPCWSTR -> Cwstring
# clsidDMO : GUID* -> Ptr{GUID}
# guidCategory : GUID* -> Ptr{GUID}
# dwFlags : DWORD -> UInt32
# cInTypes : DWORD -> UInt32
# pInTypes : DMO_PARTIAL_MEDIATYPE* -> Ptr{DMO_PARTIAL_MEDIATYPE}
# cOutTypes : DWORD -> UInt32
# pOutTypes : DMO_PARTIAL_MEDIATYPE* -> Ptr{DMO_PARTIAL_MEDIATYPE}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t DMORegister(
    const uint16_t* szName,
    void* clsidDMO,
    void* guidCategory,
    uint32_t dwFlags,
    uint32_t cInTypes,
    void* pInTypes,
    uint32_t cOutTypes,
    void* pOutTypes);
]]
local msdmo = ffi.load("msdmo")
-- msdmo.DMORegister(szName, clsidDMO, guidCategory, dwFlags, cInTypes, pInTypes, cOutTypes, pOutTypes)
-- szName : LPCWSTR
-- clsidDMO : GUID*
-- guidCategory : GUID*
-- dwFlags : DWORD
-- cInTypes : DWORD
-- pInTypes : DMO_PARTIAL_MEDIATYPE*
-- cOutTypes : DWORD
-- pOutTypes : DMO_PARTIAL_MEDIATYPE*
-- 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('msdmo.dll');
const DMORegister = lib.func('__stdcall', 'DMORegister', 'int32_t', ['str16', 'void *', 'void *', 'uint32_t', 'uint32_t', 'void *', 'uint32_t', 'void *']);
// DMORegister(szName, clsidDMO, guidCategory, dwFlags, cInTypes, pInTypes, cOutTypes, pOutTypes)
// szName : LPCWSTR -> 'str16'
// clsidDMO : GUID* -> 'void *'
// guidCategory : GUID* -> 'void *'
// dwFlags : DWORD -> 'uint32_t'
// cInTypes : DWORD -> 'uint32_t'
// pInTypes : DMO_PARTIAL_MEDIATYPE* -> 'void *'
// cOutTypes : DWORD -> 'uint32_t'
// pOutTypes : DMO_PARTIAL_MEDIATYPE* -> '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("msdmo.dll", {
  DMORegister: { parameters: ["buffer", "pointer", "pointer", "u32", "u32", "pointer", "u32", "pointer"], result: "i32" },
});
// lib.symbols.DMORegister(szName, clsidDMO, guidCategory, dwFlags, cInTypes, pInTypes, cOutTypes, pOutTypes)
// szName : LPCWSTR -> "buffer"
// clsidDMO : GUID* -> "pointer"
// guidCategory : GUID* -> "pointer"
// dwFlags : DWORD -> "u32"
// cInTypes : DWORD -> "u32"
// pInTypes : DMO_PARTIAL_MEDIATYPE* -> "pointer"
// cOutTypes : DWORD -> "u32"
// pOutTypes : DMO_PARTIAL_MEDIATYPE* -> "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 DMORegister(
    const uint16_t* szName,
    void* clsidDMO,
    void* guidCategory,
    uint32_t dwFlags,
    uint32_t cInTypes,
    void* pInTypes,
    uint32_t cOutTypes,
    void* pOutTypes);
C, "msdmo.dll");
// $ffi->DMORegister(szName, clsidDMO, guidCategory, dwFlags, cInTypes, pInTypes, cOutTypes, pOutTypes);
// szName : LPCWSTR
// clsidDMO : GUID*
// guidCategory : GUID*
// dwFlags : DWORD
// cInTypes : DWORD
// pInTypes : DMO_PARTIAL_MEDIATYPE*
// cOutTypes : DWORD
// pOutTypes : DMO_PARTIAL_MEDIATYPE*
// 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 Msdmo extends StdCallLibrary {
    Msdmo INSTANCE = Native.load("msdmo", Msdmo.class);
    int DMORegister(
        WString szName,   // LPCWSTR
        Pointer clsidDMO,   // GUID*
        Pointer guidCategory,   // GUID*
        int dwFlags,   // DWORD
        int cInTypes,   // DWORD
        Pointer pInTypes,   // DMO_PARTIAL_MEDIATYPE*
        int cOutTypes,   // DWORD
        Pointer pOutTypes   // DMO_PARTIAL_MEDIATYPE*
    );
}

@[Link("msdmo")]
lib Libmsdmo
  fun DMORegister = DMORegister(
    szName : UInt16*,   # LPCWSTR
    clsidDMO : GUID*,   # GUID*
    guidCategory : GUID*,   # GUID*
    dwFlags : UInt32,   # DWORD
    cInTypes : UInt32,   # DWORD
    pInTypes : DMO_PARTIAL_MEDIATYPE*,   # DMO_PARTIAL_MEDIATYPE*
    cOutTypes : UInt32,   # DWORD
    pOutTypes : DMO_PARTIAL_MEDIATYPE*   # DMO_PARTIAL_MEDIATYPE*
  ) : 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 DMORegisterNative = Int32 Function(Pointer<Utf16>, Pointer<Void>, Pointer<Void>, Uint32, Uint32, Pointer<Void>, Uint32, Pointer<Void>);
typedef DMORegisterDart = int Function(Pointer<Utf16>, Pointer<Void>, Pointer<Void>, int, int, Pointer<Void>, int, Pointer<Void>);
final DMORegister = DynamicLibrary.open('msdmo.dll')
    .lookupFunction<DMORegisterNative, DMORegisterDart>('DMORegister');
// szName : LPCWSTR -> Pointer<Utf16>
// clsidDMO : GUID* -> Pointer<Void>
// guidCategory : GUID* -> Pointer<Void>
// dwFlags : DWORD -> Uint32
// cInTypes : DWORD -> Uint32
// pInTypes : DMO_PARTIAL_MEDIATYPE* -> Pointer<Void>
// cOutTypes : DWORD -> Uint32
// pOutTypes : DMO_PARTIAL_MEDIATYPE* -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function DMORegister(
  szName: PWideChar;   // LPCWSTR
  clsidDMO: PGUID;   // GUID*
  guidCategory: PGUID;   // GUID*
  dwFlags: DWORD;   // DWORD
  cInTypes: DWORD;   // DWORD
  pInTypes: Pointer;   // DMO_PARTIAL_MEDIATYPE*
  cOutTypes: DWORD;   // DWORD
  pOutTypes: Pointer   // DMO_PARTIAL_MEDIATYPE*
): Integer; stdcall;
  external 'msdmo.dll' name 'DMORegister';

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

foreign import stdcall safe "DMORegister"
  c_DMORegister :: CWString -> Ptr () -> Ptr () -> Word32 -> Word32 -> Ptr () -> Word32 -> Ptr () -> IO Int32
-- szName : LPCWSTR -> CWString
-- clsidDMO : GUID* -> Ptr ()
-- guidCategory : GUID* -> Ptr ()
-- dwFlags : DWORD -> Word32
-- cInTypes : DWORD -> Word32
-- pInTypes : DMO_PARTIAL_MEDIATYPE* -> Ptr ()
-- cOutTypes : DWORD -> Word32
-- pOutTypes : DMO_PARTIAL_MEDIATYPE* -> 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 dmoregister =
  foreign "DMORegister"
    ((ptr uint16_t) @-> (ptr void) @-> (ptr void) @-> uint32_t @-> uint32_t @-> (ptr void) @-> uint32_t @-> (ptr void) @-> returning int32_t)
(* szName : LPCWSTR -> (ptr uint16_t) *)
(* clsidDMO : GUID* -> (ptr void) *)
(* guidCategory : GUID* -> (ptr void) *)
(* dwFlags : DWORD -> uint32_t *)
(* cInTypes : DWORD -> uint32_t *)
(* pInTypes : DMO_PARTIAL_MEDIATYPE* -> (ptr void) *)
(* cOutTypes : DWORD -> uint32_t *)
(* pOutTypes : DMO_PARTIAL_MEDIATYPE* -> (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 msdmo (t "msdmo.dll"))
(cffi:use-foreign-library msdmo)

(cffi:defcfun ("DMORegister" dmoregister :convention :stdcall) :int32
  (sz-name (:string :encoding :utf-16le))   ; LPCWSTR
  (clsid-dmo :pointer)   ; GUID*
  (guid-category :pointer)   ; GUID*
  (dw-flags :uint32)   ; DWORD
  (c-in-types :uint32)   ; DWORD
  (p-in-types :pointer)   ; DMO_PARTIAL_MEDIATYPE*
  (c-out-types :uint32)   ; DWORD
  (p-out-types :pointer))   ; DMO_PARTIAL_MEDIATYPE*
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $DMORegister = Win32::API::More->new('msdmo',
    'int DMORegister(LPCWSTR szName, LPVOID clsidDMO, LPVOID guidCategory, DWORD dwFlags, DWORD cInTypes, LPVOID pInTypes, DWORD cOutTypes, LPVOID pOutTypes)');
# my $ret = $DMORegister->Call($szName, $clsidDMO, $guidCategory, $dwFlags, $cInTypes, $pInTypes, $cOutTypes, $pOutTypes);
# szName : LPCWSTR -> LPCWSTR
# clsidDMO : GUID* -> LPVOID
# guidCategory : GUID* -> LPVOID
# dwFlags : DWORD -> DWORD
# cInTypes : DWORD -> DWORD
# pInTypes : DMO_PARTIAL_MEDIATYPE* -> LPVOID
# cOutTypes : DWORD -> DWORD
# pOutTypes : DMO_PARTIAL_MEDIATYPE* -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

DMORegister

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