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MFCreateCameraControlMonitor
関数カメラ制御値の変化を通知する監視オブジェクトを生成する。
シグネチャ
// MFSENSORGROUP.dll
#include <windows.h>
HRESULT MFCreateCameraControlMonitor(
LPCWSTR symbolicLink,
IMFCameraControlNotify* callback,
IMFCameraControlMonitor** ppCameraControlMonitor
);パラメーター
| 名前 | 型 | 方向 | 説明 |
|---|---|---|---|
| symbolicLink | LPCWSTR | in | アクティブなビデオキャプチャデバイスのシンボリックリンク名を表す文字列。 |
| callback | IMFCameraControlNotify* | in | IMFCameraControlNotify コールバックインターフェイスを実装するオブジェクトへのポインター。 |
| ppCameraControlMonitor | IMFCameraControlMonitor** | out | 作成された IMFCameraControlMonitor オブジェクトへのポインターを受け取ります。 |
戻り値の型: HRESULT
公式ドキュメント
IMFCameraControlMonitor のインスタンスを作成します。
戻り値
次を含む HRESULT:
| 値 | 説明 |
|---|---|
| S_OK | 成功。 |
| E_INVALIDARG | symbolicLink に指定されたシンボリックリンクが、既知のカメラデバイスと一致しません。 |
解説(Remarks)
シンボリックリンクは、MFEnumDeviceSources が返す MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_SYMBOLIC_LINK 属性から取得するか、Windows.Devices.Enumeration API を通じて取得した DeviceInformation.Id プロパティにアクセスして取得できます。
出典・ライセンス: 上記「公式ドキュメント」の内容は Microsoft の Win32 API ドキュメント(MicrosoftDocs/sdk-api)を日本語に翻訳・改変したものです。© Microsoft Corporation. CC BY 4.0 で提供。
Microsoft 公式リファレンス: 英語 (en-us) · 日本語 (ja-jp) · 原文ソース (GitHub)
Microsoft 公式リファレンス: 英語 (en-us) · 日本語 (ja-jp) · 原文ソース (GitHub)
各言語での呼び出し定義
// MFSENSORGROUP.dll
#include <windows.h>
HRESULT MFCreateCameraControlMonitor(
LPCWSTR symbolicLink,
IMFCameraControlNotify* callback,
IMFCameraControlMonitor** ppCameraControlMonitor
);[DllImport("MFSENSORGROUP.dll", ExactSpelling = true)]
static extern int MFCreateCameraControlMonitor(
[MarshalAs(UnmanagedType.LPWStr)] string symbolicLink, // LPCWSTR
IntPtr callback, // IMFCameraControlNotify*
IntPtr ppCameraControlMonitor // IMFCameraControlMonitor** out
);<DllImport("MFSENSORGROUP.dll", ExactSpelling:=True)>
Public Shared Function MFCreateCameraControlMonitor(
<MarshalAs(UnmanagedType.LPWStr)> symbolicLink As String, ' LPCWSTR
callback As IntPtr, ' IMFCameraControlNotify*
ppCameraControlMonitor As IntPtr ' IMFCameraControlMonitor** out
) As Integer
End Function' symbolicLink : LPCWSTR
' callback : IMFCameraControlNotify*
' ppCameraControlMonitor : IMFCameraControlMonitor** out
Declare PtrSafe Function MFCreateCameraControlMonitor Lib "mfsensorgroup" ( _
ByVal symbolicLink As LongPtr, _
ByVal callback As LongPtr, _
ByVal ppCameraControlMonitor 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
MFCreateCameraControlMonitor = ctypes.windll.mfsensorgroup.MFCreateCameraControlMonitor
MFCreateCameraControlMonitor.restype = ctypes.c_int
MFCreateCameraControlMonitor.argtypes = [
wintypes.LPCWSTR, # symbolicLink : LPCWSTR
ctypes.c_void_p, # callback : IMFCameraControlNotify*
ctypes.c_void_p, # ppCameraControlMonitor : IMFCameraControlMonitor** out
]require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('MFSENSORGROUP.dll')
MFCreateCameraControlMonitor = Fiddle::Function.new(
lib['MFCreateCameraControlMonitor'],
[
Fiddle::TYPE_VOIDP, # symbolicLink : LPCWSTR
Fiddle::TYPE_VOIDP, # callback : IMFCameraControlNotify*
Fiddle::TYPE_VOIDP, # ppCameraControlMonitor : IMFCameraControlMonitor** out
],
Fiddle::TYPE_INT)#[link(name = "mfsensorgroup")]
extern "system" {
fn MFCreateCameraControlMonitor(
symbolicLink: *const u16, // LPCWSTR
callback: *mut core::ffi::c_void, // IMFCameraControlNotify*
ppCameraControlMonitor: *mut *mut core::ffi::c_void // IMFCameraControlMonitor** out
) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[DllImport("MFSENSORGROUP.dll")]
public static extern int MFCreateCameraControlMonitor([MarshalAs(UnmanagedType.LPWStr)] string symbolicLink, IntPtr callback, IntPtr ppCameraControlMonitor);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFSENSORGROUP_MFCreateCameraControlMonitor' -Namespace Win32 -PassThru
# $api::MFCreateCameraControlMonitor(symbolicLink, callback, ppCameraControlMonitor)#uselib "MFSENSORGROUP.dll"
#func global MFCreateCameraControlMonitor "MFCreateCameraControlMonitor" sptr, sptr, sptr
; MFCreateCameraControlMonitor symbolicLink, callback, ppCameraControlMonitor ; 戻り値は stat
; symbolicLink : LPCWSTR -> "sptr"
; callback : IMFCameraControlNotify* -> "sptr"
; ppCameraControlMonitor : IMFCameraControlMonitor** 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 "MFSENSORGROUP.dll"
#cfunc global MFCreateCameraControlMonitor "MFCreateCameraControlMonitor" wstr, sptr, sptr
; res = MFCreateCameraControlMonitor(symbolicLink, callback, ppCameraControlMonitor)
; symbolicLink : LPCWSTR -> "wstr"
; callback : IMFCameraControlNotify* -> "sptr"
; ppCameraControlMonitor : IMFCameraControlMonitor** out -> "sptr"; HRESULT MFCreateCameraControlMonitor(LPCWSTR symbolicLink, IMFCameraControlNotify* callback, IMFCameraControlMonitor** ppCameraControlMonitor)
#uselib "MFSENSORGROUP.dll"
#cfunc global MFCreateCameraControlMonitor "MFCreateCameraControlMonitor" wstr, intptr, intptr
; res = MFCreateCameraControlMonitor(symbolicLink, callback, ppCameraControlMonitor)
; symbolicLink : LPCWSTR -> "wstr"
; callback : IMFCameraControlNotify* -> "intptr"
; ppCameraControlMonitor : IMFCameraControlMonitor** out -> "intptr"import (
"golang.org/x/sys/windows"
"unsafe"
)
var (
mfsensorgroup = windows.NewLazySystemDLL("MFSENSORGROUP.dll")
procMFCreateCameraControlMonitor = mfsensorgroup.NewProc("MFCreateCameraControlMonitor")
)
// symbolicLink (LPCWSTR), callback (IMFCameraControlNotify*), ppCameraControlMonitor (IMFCameraControlMonitor** out)
r1, _, err := procMFCreateCameraControlMonitor.Call(
uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(symbolicLink))),
uintptr(callback),
uintptr(ppCameraControlMonitor),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // HRESULTfunction MFCreateCameraControlMonitor(
symbolicLink: PWideChar; // LPCWSTR
callback: Pointer; // IMFCameraControlNotify*
ppCameraControlMonitor: Pointer // IMFCameraControlMonitor** out
): Integer; stdcall;
external 'MFSENSORGROUP.dll' name 'MFCreateCameraControlMonitor';result := DllCall("MFSENSORGROUP\MFCreateCameraControlMonitor"
, "WStr", symbolicLink ; LPCWSTR
, "Ptr", callback ; IMFCameraControlNotify*
, "Ptr", ppCameraControlMonitor ; IMFCameraControlMonitor** out
, "Int") ; return: HRESULT●MFCreateCameraControlMonitor(symbolicLink, callback, ppCameraControlMonitor) = DLL("MFSENSORGROUP.dll", "int MFCreateCameraControlMonitor(char*, void*, void*)")
# 呼び出し: MFCreateCameraControlMonitor(symbolicLink, callback, ppCameraControlMonitor)
# symbolicLink : LPCWSTR -> "char*"
# callback : IMFCameraControlNotify* -> "void*"
# ppCameraControlMonitor : IMFCameraControlMonitor** 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 "mfsensorgroup" fn MFCreateCameraControlMonitor(
symbolicLink: [*c]const u16, // LPCWSTR
callback: ?*anyopaque, // IMFCameraControlNotify*
ppCameraControlMonitor: ?*anyopaque // IMFCameraControlMonitor** out
) callconv(std.os.windows.WINAPI) i32;proc MFCreateCameraControlMonitor(
symbolicLink: WideCString, # LPCWSTR
callback: pointer, # IMFCameraControlNotify*
ppCameraControlMonitor: pointer # IMFCameraControlMonitor** out
): int32 {.importc: "MFCreateCameraControlMonitor", stdcall, dynlib: "MFSENSORGROUP.dll".}pragma(lib, "mfsensorgroup");
extern(Windows)
int MFCreateCameraControlMonitor(
const(wchar)* symbolicLink, // LPCWSTR
void* callback, // IMFCameraControlNotify*
void* ppCameraControlMonitor // IMFCameraControlMonitor** out
);ccall((:MFCreateCameraControlMonitor, "MFSENSORGROUP.dll"), stdcall, Int32,
(Cwstring, Ptr{Cvoid}, Ptr{Cvoid}),
symbolicLink, callback, ppCameraControlMonitor)
# symbolicLink : LPCWSTR -> Cwstring
# callback : IMFCameraControlNotify* -> Ptr{Cvoid}
# ppCameraControlMonitor : IMFCameraControlMonitor** 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 MFCreateCameraControlMonitor(
const uint16_t* symbolicLink,
void* callback,
void* ppCameraControlMonitor);
]]
local mfsensorgroup = ffi.load("mfsensorgroup")
-- mfsensorgroup.MFCreateCameraControlMonitor(symbolicLink, callback, ppCameraControlMonitor)
-- symbolicLink : LPCWSTR
-- callback : IMFCameraControlNotify*
-- ppCameraControlMonitor : IMFCameraControlMonitor** 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('MFSENSORGROUP.dll');
const MFCreateCameraControlMonitor = lib.func('__stdcall', 'MFCreateCameraControlMonitor', 'int32_t', ['str16', 'void *', 'void *']);
// MFCreateCameraControlMonitor(symbolicLink, callback, ppCameraControlMonitor)
// symbolicLink : LPCWSTR -> 'str16'
// callback : IMFCameraControlNotify* -> 'void *'
// ppCameraControlMonitor : IMFCameraControlMonitor** 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("MFSENSORGROUP.dll", {
MFCreateCameraControlMonitor: { parameters: ["buffer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.MFCreateCameraControlMonitor(symbolicLink, callback, ppCameraControlMonitor)
// symbolicLink : LPCWSTR -> "buffer"
// callback : IMFCameraControlNotify* -> "pointer"
// ppCameraControlMonitor : IMFCameraControlMonitor** 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 MFCreateCameraControlMonitor(
const uint16_t* symbolicLink,
void* callback,
void* ppCameraControlMonitor);
C, "MFSENSORGROUP.dll");
// $ffi->MFCreateCameraControlMonitor(symbolicLink, callback, ppCameraControlMonitor);
// symbolicLink : LPCWSTR
// callback : IMFCameraControlNotify*
// ppCameraControlMonitor : IMFCameraControlMonitor** out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;
public interface Mfsensorgroup extends StdCallLibrary {
Mfsensorgroup INSTANCE = Native.load("mfsensorgroup", Mfsensorgroup.class);
int MFCreateCameraControlMonitor(
WString symbolicLink, // LPCWSTR
Pointer callback, // IMFCameraControlNotify*
Pointer ppCameraControlMonitor // IMFCameraControlMonitor** out
);
}@[Link("mfsensorgroup")]
lib LibMFSENSORGROUP
fun MFCreateCameraControlMonitor = MFCreateCameraControlMonitor(
symbolicLink : UInt16*, # LPCWSTR
callback : Void*, # IMFCameraControlNotify*
ppCameraControlMonitor : Void* # IMFCameraControlMonitor** out
) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。import 'dart:ffi';
import 'package:ffi/ffi.dart';
typedef MFCreateCameraControlMonitorNative = Int32 Function(Pointer<Utf16>, Pointer<Void>, Pointer<Void>);
typedef MFCreateCameraControlMonitorDart = int Function(Pointer<Utf16>, Pointer<Void>, Pointer<Void>);
final MFCreateCameraControlMonitor = DynamicLibrary.open('MFSENSORGROUP.dll')
.lookupFunction<MFCreateCameraControlMonitorNative, MFCreateCameraControlMonitorDart>('MFCreateCameraControlMonitor');
// symbolicLink : LPCWSTR -> Pointer<Utf16>
// callback : IMFCameraControlNotify* -> Pointer<Void>
// ppCameraControlMonitor : IMFCameraControlMonitor** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。{$mode objfpc}{$H+}
function MFCreateCameraControlMonitor(
symbolicLink: PWideChar; // LPCWSTR
callback: Pointer; // IMFCameraControlNotify*
ppCameraControlMonitor: Pointer // IMFCameraControlMonitor** out
): Integer; stdcall;
external 'MFSENSORGROUP.dll' name 'MFCreateCameraControlMonitor';import Foreign
import Foreign.C.Types
import Foreign.C.String
foreign import stdcall safe "MFCreateCameraControlMonitor"
c_MFCreateCameraControlMonitor :: CWString -> Ptr () -> Ptr () -> IO Int32
-- symbolicLink : LPCWSTR -> CWString
-- callback : IMFCameraControlNotify* -> Ptr ()
-- ppCameraControlMonitor : IMFCameraControlMonitor** 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 mfcreatecameracontrolmonitor =
foreign "MFCreateCameraControlMonitor"
((ptr uint16_t) @-> (ptr void) @-> (ptr void) @-> returning int32_t)
(* symbolicLink : LPCWSTR -> (ptr uint16_t) *)
(* callback : IMFCameraControlNotify* -> (ptr void) *)
(* ppCameraControlMonitor : IMFCameraControlMonitor** 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 mfsensorgroup (t "MFSENSORGROUP.dll"))
(cffi:use-foreign-library mfsensorgroup)
(cffi:defcfun ("MFCreateCameraControlMonitor" mfcreate-camera-control-monitor :convention :stdcall) :int32
(symbolic-link (:string :encoding :utf-16le)) ; LPCWSTR
(callback :pointer) ; IMFCameraControlNotify*
(pp-camera-control-monitor :pointer)) ; IMFCameraControlMonitor** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。use Win32::API;
my $MFCreateCameraControlMonitor = Win32::API::More->new('MFSENSORGROUP',
'int MFCreateCameraControlMonitor(LPCWSTR symbolicLink, LPVOID callback, LPVOID ppCameraControlMonitor)');
# my $ret = $MFCreateCameraControlMonitor->Call($symbolicLink, $callback, $ppCameraControlMonitor);
# symbolicLink : LPCWSTR -> LPCWSTR
# callback : IMFCameraControlNotify* -> LPVOID
# ppCameraControlMonitor : IMFCameraControlMonitor** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。