DnsConnectionGetProxyInfoForHostUrlEx

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

DWORD DnsConnectionGetProxyInfoForHostUrlEx(
    LPCWSTR pwszHostUrl,
    BYTE* pSelectionContext,   // optional
    DWORD dwSelectionContextLength,
    DWORD dwExplicitInterfaceIndex,
    LPCWSTR pwszConnectionName,   // optional
    DNS_CONNECTION_PROXY_INFO_EX* pProxyInfoEx
);

<DllImport("DNSAPI.dll", ExactSpelling:=True)>
Public Shared Function DnsConnectionGetProxyInfoForHostUrlEx(
    <MarshalAs(UnmanagedType.LPWStr)> pwszHostUrl As String,   ' LPCWSTR
    pSelectionContext As IntPtr,   ' BYTE* optional
    dwSelectionContextLength As UInteger,   ' DWORD
    dwExplicitInterfaceIndex As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPWStr)> pwszConnectionName As String,   ' LPCWSTR optional
    pProxyInfoEx As IntPtr   ' DNS_CONNECTION_PROXY_INFO_EX* out
) As UInteger
End Function

' pwszHostUrl : LPCWSTR
' pSelectionContext : BYTE* optional
' dwSelectionContextLength : DWORD
' dwExplicitInterfaceIndex : DWORD
' pwszConnectionName : LPCWSTR optional
' pProxyInfoEx : DNS_CONNECTION_PROXY_INFO_EX* out
Declare PtrSafe Function DnsConnectionGetProxyInfoForHostUrlEx Lib "dnsapi" ( _
    ByVal pwszHostUrl As LongPtr, _
    ByVal pSelectionContext As LongPtr, _
    ByVal dwSelectionContextLength As Long, _
    ByVal dwExplicitInterfaceIndex As Long, _
    ByVal pwszConnectionName As LongPtr, _
    ByVal pProxyInfoEx 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

DnsConnectionGetProxyInfoForHostUrlEx = ctypes.windll.dnsapi.DnsConnectionGetProxyInfoForHostUrlEx
DnsConnectionGetProxyInfoForHostUrlEx.restype = wintypes.DWORD
DnsConnectionGetProxyInfoForHostUrlEx.argtypes = [
    wintypes.LPCWSTR,  # pwszHostUrl : LPCWSTR
    ctypes.POINTER(ctypes.c_ubyte),  # pSelectionContext : BYTE* optional
    wintypes.DWORD,  # dwSelectionContextLength : DWORD
    wintypes.DWORD,  # dwExplicitInterfaceIndex : DWORD
    wintypes.LPCWSTR,  # pwszConnectionName : LPCWSTR optional
    ctypes.c_void_p,  # pProxyInfoEx : DNS_CONNECTION_PROXY_INFO_EX* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('DNSAPI.dll')
DnsConnectionGetProxyInfoForHostUrlEx = Fiddle::Function.new(
  lib['DnsConnectionGetProxyInfoForHostUrlEx'],
  [
    Fiddle::TYPE_VOIDP,  # pwszHostUrl : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pSelectionContext : BYTE* optional
    -Fiddle::TYPE_INT,  # dwSelectionContextLength : DWORD
    -Fiddle::TYPE_INT,  # dwExplicitInterfaceIndex : DWORD
    Fiddle::TYPE_VOIDP,  # pwszConnectionName : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # pProxyInfoEx : DNS_CONNECTION_PROXY_INFO_EX* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "dnsapi")]
extern "system" {
    fn DnsConnectionGetProxyInfoForHostUrlEx(
        pwszHostUrl: *const u16,  // LPCWSTR
        pSelectionContext: *mut u8,  // BYTE* optional
        dwSelectionContextLength: u32,  // DWORD
        dwExplicitInterfaceIndex: u32,  // DWORD
        pwszConnectionName: *const u16,  // LPCWSTR optional
        pProxyInfoEx: *mut DNS_CONNECTION_PROXY_INFO_EX  // DNS_CONNECTION_PROXY_INFO_EX* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("DNSAPI.dll")]
public static extern uint DnsConnectionGetProxyInfoForHostUrlEx([MarshalAs(UnmanagedType.LPWStr)] string pwszHostUrl, IntPtr pSelectionContext, uint dwSelectionContextLength, uint dwExplicitInterfaceIndex, [MarshalAs(UnmanagedType.LPWStr)] string pwszConnectionName, IntPtr pProxyInfoEx);
"@
$api = Add-Type -MemberDefinition $sig -Name 'DNSAPI_DnsConnectionGetProxyInfoForHostUrlEx' -Namespace Win32 -PassThru
# $api::DnsConnectionGetProxyInfoForHostUrlEx(pwszHostUrl, pSelectionContext, dwSelectionContextLength, dwExplicitInterfaceIndex, pwszConnectionName, pProxyInfoEx)

#uselib "DNSAPI.dll"
#func global DnsConnectionGetProxyInfoForHostUrlEx "DnsConnectionGetProxyInfoForHostUrlEx" sptr, sptr, sptr, sptr, sptr, sptr
; DnsConnectionGetProxyInfoForHostUrlEx pwszHostUrl, varptr(pSelectionContext), dwSelectionContextLength, dwExplicitInterfaceIndex, pwszConnectionName, varptr(pProxyInfoEx)   ; 戻り値は stat
; pwszHostUrl : LPCWSTR -> "sptr"
; pSelectionContext : BYTE* optional -> "sptr"
; dwSelectionContextLength : DWORD -> "sptr"
; dwExplicitInterfaceIndex : DWORD -> "sptr"
; pwszConnectionName : LPCWSTR optional -> "sptr"
; pProxyInfoEx : DNS_CONNECTION_PROXY_INFO_EX* 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 (
	dnsapi = windows.NewLazySystemDLL("DNSAPI.dll")
	procDnsConnectionGetProxyInfoForHostUrlEx = dnsapi.NewProc("DnsConnectionGetProxyInfoForHostUrlEx")
)

// pwszHostUrl (LPCWSTR), pSelectionContext (BYTE* optional), dwSelectionContextLength (DWORD), dwExplicitInterfaceIndex (DWORD), pwszConnectionName (LPCWSTR optional), pProxyInfoEx (DNS_CONNECTION_PROXY_INFO_EX* out)
r1, _, err := procDnsConnectionGetProxyInfoForHostUrlEx.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pwszHostUrl))),
	uintptr(pSelectionContext),
	uintptr(dwSelectionContextLength),
	uintptr(dwExplicitInterfaceIndex),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pwszConnectionName))),
	uintptr(pProxyInfoEx),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function DnsConnectionGetProxyInfoForHostUrlEx(
  pwszHostUrl: PWideChar;   // LPCWSTR
  pSelectionContext: Pointer;   // BYTE* optional
  dwSelectionContextLength: DWORD;   // DWORD
  dwExplicitInterfaceIndex: DWORD;   // DWORD
  pwszConnectionName: PWideChar;   // LPCWSTR optional
  pProxyInfoEx: Pointer   // DNS_CONNECTION_PROXY_INFO_EX* out
): DWORD; stdcall;
  external 'DNSAPI.dll' name 'DnsConnectionGetProxyInfoForHostUrlEx';

result := DllCall("DNSAPI\DnsConnectionGetProxyInfoForHostUrlEx"
    , "WStr", pwszHostUrl   ; LPCWSTR
    , "Ptr", pSelectionContext   ; BYTE* optional
    , "UInt", dwSelectionContextLength   ; DWORD
    , "UInt", dwExplicitInterfaceIndex   ; DWORD
    , "WStr", pwszConnectionName   ; LPCWSTR optional
    , "Ptr", pProxyInfoEx   ; DNS_CONNECTION_PROXY_INFO_EX* out
    , "UInt")   ; return: DWORD

●DnsConnectionGetProxyInfoForHostUrlEx(pwszHostUrl, pSelectionContext, dwSelectionContextLength, dwExplicitInterfaceIndex, pwszConnectionName, pProxyInfoEx) = DLL("DNSAPI.dll", "dword DnsConnectionGetProxyInfoForHostUrlEx(char*, void*, dword, dword, char*, void*)")
# 呼び出し: DnsConnectionGetProxyInfoForHostUrlEx(pwszHostUrl, pSelectionContext, dwSelectionContextLength, dwExplicitInterfaceIndex, pwszConnectionName, pProxyInfoEx)
# pwszHostUrl : LPCWSTR -> "char*"
# pSelectionContext : BYTE* optional -> "void*"
# dwSelectionContextLength : DWORD -> "dword"
# dwExplicitInterfaceIndex : DWORD -> "dword"
# pwszConnectionName : LPCWSTR optional -> "char*"
# pProxyInfoEx : DNS_CONNECTION_PROXY_INFO_EX* 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 "dnsapi" fn DnsConnectionGetProxyInfoForHostUrlEx(
    pwszHostUrl: [*c]const u16, // LPCWSTR
    pSelectionContext: [*c]u8, // BYTE* optional
    dwSelectionContextLength: u32, // DWORD
    dwExplicitInterfaceIndex: u32, // DWORD
    pwszConnectionName: [*c]const u16, // LPCWSTR optional
    pProxyInfoEx: [*c]DNS_CONNECTION_PROXY_INFO_EX // DNS_CONNECTION_PROXY_INFO_EX* out
) callconv(std.os.windows.WINAPI) u32;

proc DnsConnectionGetProxyInfoForHostUrlEx(
    pwszHostUrl: WideCString,  # LPCWSTR
    pSelectionContext: ptr uint8,  # BYTE* optional
    dwSelectionContextLength: uint32,  # DWORD
    dwExplicitInterfaceIndex: uint32,  # DWORD
    pwszConnectionName: WideCString,  # LPCWSTR optional
    pProxyInfoEx: ptr DNS_CONNECTION_PROXY_INFO_EX  # DNS_CONNECTION_PROXY_INFO_EX* out
): uint32 {.importc: "DnsConnectionGetProxyInfoForHostUrlEx", stdcall, dynlib: "DNSAPI.dll".}

pragma(lib, "dnsapi");
extern(Windows)
uint DnsConnectionGetProxyInfoForHostUrlEx(
    const(wchar)* pwszHostUrl,   // LPCWSTR
    ubyte* pSelectionContext,   // BYTE* optional
    uint dwSelectionContextLength,   // DWORD
    uint dwExplicitInterfaceIndex,   // DWORD
    const(wchar)* pwszConnectionName,   // LPCWSTR optional
    DNS_CONNECTION_PROXY_INFO_EX* pProxyInfoEx   // DNS_CONNECTION_PROXY_INFO_EX* out
);

ccall((:DnsConnectionGetProxyInfoForHostUrlEx, "DNSAPI.dll"), stdcall, UInt32,
      (Cwstring, Ptr{UInt8}, UInt32, UInt32, Cwstring, Ptr{DNS_CONNECTION_PROXY_INFO_EX}),
      pwszHostUrl, pSelectionContext, dwSelectionContextLength, dwExplicitInterfaceIndex, pwszConnectionName, pProxyInfoEx)
# pwszHostUrl : LPCWSTR -> Cwstring
# pSelectionContext : BYTE* optional -> Ptr{UInt8}
# dwSelectionContextLength : DWORD -> UInt32
# dwExplicitInterfaceIndex : DWORD -> UInt32
# pwszConnectionName : LPCWSTR optional -> Cwstring
# pProxyInfoEx : DNS_CONNECTION_PROXY_INFO_EX* out -> Ptr{DNS_CONNECTION_PROXY_INFO_EX}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t DnsConnectionGetProxyInfoForHostUrlEx(
    const uint16_t* pwszHostUrl,
    uint8_t* pSelectionContext,
    uint32_t dwSelectionContextLength,
    uint32_t dwExplicitInterfaceIndex,
    const uint16_t* pwszConnectionName,
    void* pProxyInfoEx);
]]
local dnsapi = ffi.load("dnsapi")
-- dnsapi.DnsConnectionGetProxyInfoForHostUrlEx(pwszHostUrl, pSelectionContext, dwSelectionContextLength, dwExplicitInterfaceIndex, pwszConnectionName, pProxyInfoEx)
-- pwszHostUrl : LPCWSTR
-- pSelectionContext : BYTE* optional
-- dwSelectionContextLength : DWORD
-- dwExplicitInterfaceIndex : DWORD
-- pwszConnectionName : LPCWSTR optional
-- pProxyInfoEx : DNS_CONNECTION_PROXY_INFO_EX* 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('DNSAPI.dll');
const DnsConnectionGetProxyInfoForHostUrlEx = lib.func('__stdcall', 'DnsConnectionGetProxyInfoForHostUrlEx', 'uint32_t', ['str16', 'uint8_t *', 'uint32_t', 'uint32_t', 'str16', 'void *']);
// DnsConnectionGetProxyInfoForHostUrlEx(pwszHostUrl, pSelectionContext, dwSelectionContextLength, dwExplicitInterfaceIndex, pwszConnectionName, pProxyInfoEx)
// pwszHostUrl : LPCWSTR -> 'str16'
// pSelectionContext : BYTE* optional -> 'uint8_t *'
// dwSelectionContextLength : DWORD -> 'uint32_t'
// dwExplicitInterfaceIndex : DWORD -> 'uint32_t'
// pwszConnectionName : LPCWSTR optional -> 'str16'
// pProxyInfoEx : DNS_CONNECTION_PROXY_INFO_EX* 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("DNSAPI.dll", {
  DnsConnectionGetProxyInfoForHostUrlEx: { parameters: ["buffer", "pointer", "u32", "u32", "buffer", "pointer"], result: "u32" },
});
// lib.symbols.DnsConnectionGetProxyInfoForHostUrlEx(pwszHostUrl, pSelectionContext, dwSelectionContextLength, dwExplicitInterfaceIndex, pwszConnectionName, pProxyInfoEx)
// pwszHostUrl : LPCWSTR -> "buffer"
// pSelectionContext : BYTE* optional -> "pointer"
// dwSelectionContextLength : DWORD -> "u32"
// dwExplicitInterfaceIndex : DWORD -> "u32"
// pwszConnectionName : LPCWSTR optional -> "buffer"
// pProxyInfoEx : DNS_CONNECTION_PROXY_INFO_EX* 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
uint32_t DnsConnectionGetProxyInfoForHostUrlEx(
    const uint16_t* pwszHostUrl,
    uint8_t* pSelectionContext,
    uint32_t dwSelectionContextLength,
    uint32_t dwExplicitInterfaceIndex,
    const uint16_t* pwszConnectionName,
    void* pProxyInfoEx);
C, "DNSAPI.dll");
// $ffi->DnsConnectionGetProxyInfoForHostUrlEx(pwszHostUrl, pSelectionContext, dwSelectionContextLength, dwExplicitInterfaceIndex, pwszConnectionName, pProxyInfoEx);
// pwszHostUrl : LPCWSTR
// pSelectionContext : BYTE* optional
// dwSelectionContextLength : DWORD
// dwExplicitInterfaceIndex : DWORD
// pwszConnectionName : LPCWSTR optional
// pProxyInfoEx : DNS_CONNECTION_PROXY_INFO_EX* 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 Dnsapi extends StdCallLibrary {
    Dnsapi INSTANCE = Native.load("dnsapi", Dnsapi.class);
    int DnsConnectionGetProxyInfoForHostUrlEx(
        WString pwszHostUrl,   // LPCWSTR
        byte[] pSelectionContext,   // BYTE* optional
        int dwSelectionContextLength,   // DWORD
        int dwExplicitInterfaceIndex,   // DWORD
        WString pwszConnectionName,   // LPCWSTR optional
        Pointer pProxyInfoEx   // DNS_CONNECTION_PROXY_INFO_EX* out
    );
}

@[Link("dnsapi")]
lib LibDNSAPI
  fun DnsConnectionGetProxyInfoForHostUrlEx = DnsConnectionGetProxyInfoForHostUrlEx(
    pwszHostUrl : UInt16*,   # LPCWSTR
    pSelectionContext : UInt8*,   # BYTE* optional
    dwSelectionContextLength : UInt32,   # DWORD
    dwExplicitInterfaceIndex : UInt32,   # DWORD
    pwszConnectionName : UInt16*,   # LPCWSTR optional
    pProxyInfoEx : DNS_CONNECTION_PROXY_INFO_EX*   # DNS_CONNECTION_PROXY_INFO_EX* out
  ) : UInt32
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 DnsConnectionGetProxyInfoForHostUrlExNative = Uint32 Function(Pointer<Utf16>, Pointer<Uint8>, Uint32, Uint32, Pointer<Utf16>, Pointer<Void>);
typedef DnsConnectionGetProxyInfoForHostUrlExDart = int Function(Pointer<Utf16>, Pointer<Uint8>, int, int, Pointer<Utf16>, Pointer<Void>);
final DnsConnectionGetProxyInfoForHostUrlEx = DynamicLibrary.open('DNSAPI.dll')
    .lookupFunction<DnsConnectionGetProxyInfoForHostUrlExNative, DnsConnectionGetProxyInfoForHostUrlExDart>('DnsConnectionGetProxyInfoForHostUrlEx');
// pwszHostUrl : LPCWSTR -> Pointer<Utf16>
// pSelectionContext : BYTE* optional -> Pointer<Uint8>
// dwSelectionContextLength : DWORD -> Uint32
// dwExplicitInterfaceIndex : DWORD -> Uint32
// pwszConnectionName : LPCWSTR optional -> Pointer<Utf16>
// pProxyInfoEx : DNS_CONNECTION_PROXY_INFO_EX* out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function DnsConnectionGetProxyInfoForHostUrlEx(
  pwszHostUrl: PWideChar;   // LPCWSTR
  pSelectionContext: Pointer;   // BYTE* optional
  dwSelectionContextLength: DWORD;   // DWORD
  dwExplicitInterfaceIndex: DWORD;   // DWORD
  pwszConnectionName: PWideChar;   // LPCWSTR optional
  pProxyInfoEx: Pointer   // DNS_CONNECTION_PROXY_INFO_EX* out
): DWORD; stdcall;
  external 'DNSAPI.dll' name 'DnsConnectionGetProxyInfoForHostUrlEx';

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

foreign import stdcall safe "DnsConnectionGetProxyInfoForHostUrlEx"
  c_DnsConnectionGetProxyInfoForHostUrlEx :: CWString -> Ptr Word8 -> Word32 -> Word32 -> CWString -> Ptr () -> IO Word32
-- pwszHostUrl : LPCWSTR -> CWString
-- pSelectionContext : BYTE* optional -> Ptr Word8
-- dwSelectionContextLength : DWORD -> Word32
-- dwExplicitInterfaceIndex : DWORD -> Word32
-- pwszConnectionName : LPCWSTR optional -> CWString
-- pProxyInfoEx : DNS_CONNECTION_PROXY_INFO_EX* 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 dnsconnectiongetproxyinfoforhosturlex =
  foreign "DnsConnectionGetProxyInfoForHostUrlEx"
    ((ptr uint16_t) @-> (ptr uint8_t) @-> uint32_t @-> uint32_t @-> (ptr uint16_t) @-> (ptr void) @-> returning uint32_t)
(* pwszHostUrl : LPCWSTR -> (ptr uint16_t) *)
(* pSelectionContext : BYTE* optional -> (ptr uint8_t) *)
(* dwSelectionContextLength : DWORD -> uint32_t *)
(* dwExplicitInterfaceIndex : DWORD -> uint32_t *)
(* pwszConnectionName : LPCWSTR optional -> (ptr uint16_t) *)
(* pProxyInfoEx : DNS_CONNECTION_PROXY_INFO_EX* 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 dnsapi (t "DNSAPI.dll"))
(cffi:use-foreign-library dnsapi)

(cffi:defcfun ("DnsConnectionGetProxyInfoForHostUrlEx" dns-connection-get-proxy-info-for-host-url-ex :convention :stdcall) :uint32
  (pwsz-host-url (:string :encoding :utf-16le))   ; LPCWSTR
  (p-selection-context :pointer)   ; BYTE* optional
  (dw-selection-context-length :uint32)   ; DWORD
  (dw-explicit-interface-index :uint32)   ; DWORD
  (pwsz-connection-name (:string :encoding :utf-16le))   ; LPCWSTR optional
  (p-proxy-info-ex :pointer))   ; DNS_CONNECTION_PROXY_INFO_EX* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $DnsConnectionGetProxyInfoForHostUrlEx = Win32::API::More->new('DNSAPI',
    'DWORD DnsConnectionGetProxyInfoForHostUrlEx(LPCWSTR pwszHostUrl, LPVOID pSelectionContext, DWORD dwSelectionContextLength, DWORD dwExplicitInterfaceIndex, LPCWSTR pwszConnectionName, LPVOID pProxyInfoEx)');
# my $ret = $DnsConnectionGetProxyInfoForHostUrlEx->Call($pwszHostUrl, $pSelectionContext, $dwSelectionContextLength, $dwExplicitInterfaceIndex, $pwszConnectionName, $pProxyInfoEx);
# pwszHostUrl : LPCWSTR -> LPCWSTR
# pSelectionContext : BYTE* optional -> LPVOID
# dwSelectionContextLength : DWORD -> DWORD
# dwExplicitInterfaceIndex : DWORD -> DWORD
# pwszConnectionName : LPCWSTR optional -> LPCWSTR
# pProxyInfoEx : DNS_CONNECTION_PROXY_INFO_EX* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。