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WICGetMetadataContentSize

関数
メタデータ内容の永続化に必要なサイズを取得する。
DLLWindowsCodecs.dll呼出規約winapi対応OSWindows XP 以降
📘 Microsoft Learn (日本語) · English

シグネチャ

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

HRESULT WICGetMetadataContentSize(
    const GUID* guidContainerFormat,
    IWICMetadataWriter* pIWriter,
    ULONGLONG* pcbSize
);

パラメーター

名前型方向説明
guidContainerFormatGUID*in対象のコンテナ形式を示すGUIDへのポインタ。
pIWriterIWICMetadataWriter*inサイズ算出対象のメタデータを保持するIWICMetadataWriterへのポインタ。
pcbSizeULONGLONG*outシリアル化に必要なバイトサイズを受け取る出力先のULONGLONGポインタ。

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT WICGetMetadataContentSize(
    const GUID* guidContainerFormat,
    IWICMetadataWriter* pIWriter,
    ULONGLONG* pcbSize
);
[DllImport("WindowsCodecs.dll", ExactSpelling = true)]
static extern int WICGetMetadataContentSize(
    ref Guid guidContainerFormat,   // GUID*
    IntPtr pIWriter,   // IWICMetadataWriter*
    out ulong pcbSize   // ULONGLONG* out
);
<DllImport("WindowsCodecs.dll", ExactSpelling:=True)>
Public Shared Function WICGetMetadataContentSize(
    ByRef guidContainerFormat As Guid,   ' GUID*
    pIWriter As IntPtr,   ' IWICMetadataWriter*
    <Out> ByRef pcbSize As ULong   ' ULONGLONG* out
) As Integer
End Function
' guidContainerFormat : GUID*
' pIWriter : IWICMetadataWriter*
' pcbSize : ULONGLONG* out
Declare PtrSafe Function WICGetMetadataContentSize Lib "windowscodecs" ( _
    ByVal guidContainerFormat As LongPtr, _
    ByVal pIWriter As LongPtr, _
    ByRef pcbSize As LongLong) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。
import ctypes
from ctypes import wintypes

WICGetMetadataContentSize = ctypes.windll.windowscodecs.WICGetMetadataContentSize
WICGetMetadataContentSize.restype = ctypes.c_int
WICGetMetadataContentSize.argtypes = [
    ctypes.c_void_p,  # guidContainerFormat : GUID*
    ctypes.c_void_p,  # pIWriter : IWICMetadataWriter*
    ctypes.POINTER(ctypes.c_ulonglong),  # pcbSize : ULONGLONG* out
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WindowsCodecs.dll')
WICGetMetadataContentSize = Fiddle::Function.new(
  lib['WICGetMetadataContentSize'],
  [
    Fiddle::TYPE_VOIDP,  # guidContainerFormat : GUID*
    Fiddle::TYPE_VOIDP,  # pIWriter : IWICMetadataWriter*
    Fiddle::TYPE_VOIDP,  # pcbSize : ULONGLONG* out
  ],
  Fiddle::TYPE_INT)
#[link(name = "windowscodecs")]
extern "system" {
    fn WICGetMetadataContentSize(
        guidContainerFormat: *const GUID,  // GUID*
        pIWriter: *mut core::ffi::c_void,  // IWICMetadataWriter*
        pcbSize: *mut u64  // ULONGLONG* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("WindowsCodecs.dll")]
public static extern int WICGetMetadataContentSize(ref Guid guidContainerFormat, IntPtr pIWriter, out ulong pcbSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WindowsCodecs_WICGetMetadataContentSize' -Namespace Win32 -PassThru
# $api::WICGetMetadataContentSize(guidContainerFormat, pIWriter, pcbSize)
#uselib "WindowsCodecs.dll"
#func global WICGetMetadataContentSize "WICGetMetadataContentSize" sptr, sptr, sptr
; WICGetMetadataContentSize varptr(guidContainerFormat), pIWriter, varptr(pcbSize)   ; 戻り値は stat
; guidContainerFormat : GUID* -> "sptr"
; pIWriter : IWICMetadataWriter* -> "sptr"
; pcbSize : ULONGLONG* 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。
出力引数: 
#uselib "WindowsCodecs.dll"
#cfunc global WICGetMetadataContentSize "WICGetMetadataContentSize" var, sptr, var
; res = WICGetMetadataContentSize(guidContainerFormat, pIWriter, pcbSize)
; guidContainerFormat : GUID* -> "var"
; pIWriter : IWICMetadataWriter* -> "sptr"
; pcbSize : ULONGLONG* out -> "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。
出力引数: 
; HRESULT WICGetMetadataContentSize(GUID* guidContainerFormat, IWICMetadataWriter* pIWriter, ULONGLONG* pcbSize)
#uselib "WindowsCodecs.dll"
#cfunc global WICGetMetadataContentSize "WICGetMetadataContentSize" var, intptr, var
; res = WICGetMetadataContentSize(guidContainerFormat, pIWriter, pcbSize)
; guidContainerFormat : GUID* -> "var"
; pIWriter : IWICMetadataWriter* -> "intptr"
; pcbSize : ULONGLONG* out -> "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。
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	windowscodecs = windows.NewLazySystemDLL("WindowsCodecs.dll")
	procWICGetMetadataContentSize = windowscodecs.NewProc("WICGetMetadataContentSize")
)

// guidContainerFormat (GUID*), pIWriter (IWICMetadataWriter*), pcbSize (ULONGLONG* out)
r1, _, err := procWICGetMetadataContentSize.Call(
	uintptr(guidContainerFormat),
	uintptr(pIWriter),
	uintptr(pcbSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT
function WICGetMetadataContentSize(
  guidContainerFormat: PGUID;   // GUID*
  pIWriter: Pointer;   // IWICMetadataWriter*
  pcbSize: Pointer   // ULONGLONG* out
): Integer; stdcall;
  external 'WindowsCodecs.dll' name 'WICGetMetadataContentSize';
result := DllCall("WindowsCodecs\WICGetMetadataContentSize"
    , "Ptr", guidContainerFormat   ; GUID*
    , "Ptr", pIWriter   ; IWICMetadataWriter*
    , "Ptr", pcbSize   ; ULONGLONG* out
    , "Int")   ; return: HRESULT
●WICGetMetadataContentSize(guidContainerFormat, pIWriter, pcbSize) = DLL("WindowsCodecs.dll", "int WICGetMetadataContentSize(void*, void*, void*)")
# 呼び出し: WICGetMetadataContentSize(guidContainerFormat, pIWriter, pcbSize)
# guidContainerFormat : GUID* -> "void*"
# pIWriter : IWICMetadataWriter* -> "void*"
# pcbSize : ULONGLONG* 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 "windowscodecs" fn WICGetMetadataContentSize(
    guidContainerFormat: [*c]GUID, // GUID*
    pIWriter: ?*anyopaque, // IWICMetadataWriter*
    pcbSize: [*c]u64 // ULONGLONG* out
) callconv(std.os.windows.WINAPI) i32;
proc WICGetMetadataContentSize(
    guidContainerFormat: ptr GUID,  # GUID*
    pIWriter: pointer,  # IWICMetadataWriter*
    pcbSize: ptr uint64  # ULONGLONG* out
): int32 {.importc: "WICGetMetadataContentSize", stdcall, dynlib: "WindowsCodecs.dll".}
pragma(lib, "windowscodecs");
extern(Windows)
int WICGetMetadataContentSize(
    GUID* guidContainerFormat,   // GUID*
    void* pIWriter,   // IWICMetadataWriter*
    ulong* pcbSize   // ULONGLONG* out
);
ccall((:WICGetMetadataContentSize, "WindowsCodecs.dll"), stdcall, Int32,
      (Ptr{GUID}, Ptr{Cvoid}, Ptr{UInt64}),
      guidContainerFormat, pIWriter, pcbSize)
# guidContainerFormat : GUID* -> Ptr{GUID}
# pIWriter : IWICMetadataWriter* -> Ptr{Cvoid}
# pcbSize : ULONGLONG* out -> Ptr{UInt64}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
local ffi = require("ffi")
ffi.cdef[[
int32_t WICGetMetadataContentSize(
    void* guidContainerFormat,
    void* pIWriter,
    uint64_t* pcbSize);
]]
local windowscodecs = ffi.load("windowscodecs")
-- windowscodecs.WICGetMetadataContentSize(guidContainerFormat, pIWriter, pcbSize)
-- guidContainerFormat : GUID*
-- pIWriter : IWICMetadataWriter*
-- pcbSize : ULONGLONG* 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('WindowsCodecs.dll');
const WICGetMetadataContentSize = lib.func('__stdcall', 'WICGetMetadataContentSize', 'int32_t', ['void *', 'void *', 'uint64_t *']);
// WICGetMetadataContentSize(guidContainerFormat, pIWriter, pcbSize)
// guidContainerFormat : GUID* -> 'void *'
// pIWriter : IWICMetadataWriter* -> 'void *'
// pcbSize : ULONGLONG* out -> 'uint64_t *'
// 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("WindowsCodecs.dll", {
  WICGetMetadataContentSize: { parameters: ["pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.WICGetMetadataContentSize(guidContainerFormat, pIWriter, pcbSize)
// guidContainerFormat : GUID* -> "pointer"
// pIWriter : IWICMetadataWriter* -> "pointer"
// pcbSize : ULONGLONG* 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 WICGetMetadataContentSize(
    void* guidContainerFormat,
    void* pIWriter,
    uint64_t* pcbSize);
C, "WindowsCodecs.dll");
// $ffi->WICGetMetadataContentSize(guidContainerFormat, pIWriter, pcbSize);
// guidContainerFormat : GUID*
// pIWriter : IWICMetadataWriter*
// pcbSize : ULONGLONG* 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 Windowscodecs extends StdCallLibrary {
    Windowscodecs INSTANCE = Native.load("windowscodecs", Windowscodecs.class);
    int WICGetMetadataContentSize(
        Pointer guidContainerFormat,   // GUID*
        Pointer pIWriter,   // IWICMetadataWriter*
        LongByReference pcbSize   // ULONGLONG* out
    );
}
@[Link("windowscodecs")]
lib LibWindowsCodecs
  fun WICGetMetadataContentSize = WICGetMetadataContentSize(
    guidContainerFormat : GUID*,   # GUID*
    pIWriter : Void*,   # IWICMetadataWriter*
    pcbSize : UInt64*   # ULONGLONG* 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 WICGetMetadataContentSizeNative = Int32 Function(Pointer<Void>, Pointer<Void>, Pointer<Uint64>);
typedef WICGetMetadataContentSizeDart = int Function(Pointer<Void>, Pointer<Void>, Pointer<Uint64>);
final WICGetMetadataContentSize = DynamicLibrary.open('WindowsCodecs.dll')
    .lookupFunction<WICGetMetadataContentSizeNative, WICGetMetadataContentSizeDart>('WICGetMetadataContentSize');
// guidContainerFormat : GUID* -> Pointer<Void>
// pIWriter : IWICMetadataWriter* -> Pointer<Void>
// pcbSize : ULONGLONG* out -> Pointer<Uint64>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function WICGetMetadataContentSize(
  guidContainerFormat: PGUID;   // GUID*
  pIWriter: Pointer;   // IWICMetadataWriter*
  pcbSize: Pointer   // ULONGLONG* out
): Integer; stdcall;
  external 'WindowsCodecs.dll' name 'WICGetMetadataContentSize';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "WICGetMetadataContentSize"
  c_WICGetMetadataContentSize :: Ptr () -> Ptr () -> Ptr Word64 -> IO Int32
-- guidContainerFormat : GUID* -> Ptr ()
-- pIWriter : IWICMetadataWriter* -> Ptr ()
-- pcbSize : ULONGLONG* out -> Ptr Word64
-- 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 wicgetmetadatacontentsize =
  foreign "WICGetMetadataContentSize"
    ((ptr void) @-> (ptr void) @-> (ptr uint64_t) @-> returning int32_t)
(* guidContainerFormat : GUID* -> (ptr void) *)
(* pIWriter : IWICMetadataWriter* -> (ptr void) *)
(* pcbSize : ULONGLONG* out -> (ptr uint64_t) *)
(* 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 windowscodecs (t "WindowsCodecs.dll"))
(cffi:use-foreign-library windowscodecs)

(cffi:defcfun ("WICGetMetadataContentSize" wicget-metadata-content-size :convention :stdcall) :int32
  (guid-container-format :pointer)   ; GUID*
  (p-iwriter :pointer)   ; IWICMetadataWriter*
  (pcb-size :pointer))   ; ULONGLONG* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $WICGetMetadataContentSize = Win32::API::More->new('WindowsCodecs',
    'int WICGetMetadataContentSize(LPVOID guidContainerFormat, LPVOID pIWriter, LPVOID pcbSize)');
# my $ret = $WICGetMetadataContentSize->Call($guidContainerFormat, $pIWriter, $pcbSize);
# guidContainerFormat : GUID* -> LPVOID
# pIWriter : IWICMetadataWriter* -> LPVOID
# pcbSize : ULONGLONG* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

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