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WinHttpGetProxyForUrlEx2

関数
指定URLのプロキシ情報をインターフェイス指定で非同期取得する。
DLLWINHTTP.dll呼出規約winapi

シグネチャ

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

DWORD WinHttpGetProxyForUrlEx2(
    void* hResolver,
    LPCWSTR pcwszUrl,
    WINHTTP_AUTOPROXY_OPTIONS* pAutoProxyOptions,
    DWORD cbInterfaceSelectionContext,
    BYTE* pInterfaceSelectionContext,   // optional
    UINT_PTR pContext   // optional
);

パラメーター

名前型方向説明
hResolvervoid*inWinHttpCreateProxyResolverで作成したプロキシ解決ハンドル。非同期で結果を返す。
pcwszUrlLPCWSTRinプロキシを決定したい対象URLを指す広域文字列。NULL不可。
pAutoProxyOptionsWINHTTP_AUTOPROXY_OPTIONS*in自動プロキシ検出やPACスクリプトURLなどの設定を格納した構造体へのポインタ。
cbInterfaceSelectionContextDWORDinpInterfaceSelectionContextが指すバッファのバイト数を指定する。
pInterfaceSelectionContextBYTE*inoptional使用するネットワークインターフェイス選択コンテキストのバイト配列。NULL可。
pContextUINT_PTRinoptional完了コールバックに渡されるアプリケーション定義のコンテキスト値。

戻り値の型: DWORD

各言語での呼び出し定義

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

DWORD WinHttpGetProxyForUrlEx2(
    void* hResolver,
    LPCWSTR pcwszUrl,
    WINHTTP_AUTOPROXY_OPTIONS* pAutoProxyOptions,
    DWORD cbInterfaceSelectionContext,
    BYTE* pInterfaceSelectionContext,   // optional
    UINT_PTR pContext   // optional
);
[DllImport("WINHTTP.dll", ExactSpelling = true)]
static extern uint WinHttpGetProxyForUrlEx2(
    IntPtr hResolver,   // void*
    [MarshalAs(UnmanagedType.LPWStr)] string pcwszUrl,   // LPCWSTR
    IntPtr pAutoProxyOptions,   // WINHTTP_AUTOPROXY_OPTIONS*
    uint cbInterfaceSelectionContext,   // DWORD
    IntPtr pInterfaceSelectionContext,   // BYTE* optional
    UIntPtr pContext   // UINT_PTR optional
);
<DllImport("WINHTTP.dll", ExactSpelling:=True)>
Public Shared Function WinHttpGetProxyForUrlEx2(
    hResolver As IntPtr,   ' void*
    <MarshalAs(UnmanagedType.LPWStr)> pcwszUrl As String,   ' LPCWSTR
    pAutoProxyOptions As IntPtr,   ' WINHTTP_AUTOPROXY_OPTIONS*
    cbInterfaceSelectionContext As UInteger,   ' DWORD
    pInterfaceSelectionContext As IntPtr,   ' BYTE* optional
    pContext As UIntPtr   ' UINT_PTR optional
) As UInteger
End Function
' hResolver : void*
' pcwszUrl : LPCWSTR
' pAutoProxyOptions : WINHTTP_AUTOPROXY_OPTIONS*
' cbInterfaceSelectionContext : DWORD
' pInterfaceSelectionContext : BYTE* optional
' pContext : UINT_PTR optional
Declare PtrSafe Function WinHttpGetProxyForUrlEx2 Lib "winhttp" ( _
    ByVal hResolver As LongPtr, _
    ByVal pcwszUrl As LongPtr, _
    ByVal pAutoProxyOptions As LongPtr, _
    ByVal cbInterfaceSelectionContext As Long, _
    ByVal pInterfaceSelectionContext As LongPtr, _
    ByVal pContext 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

WinHttpGetProxyForUrlEx2 = ctypes.windll.winhttp.WinHttpGetProxyForUrlEx2
WinHttpGetProxyForUrlEx2.restype = wintypes.DWORD
WinHttpGetProxyForUrlEx2.argtypes = [
    ctypes.POINTER(None),  # hResolver : void*
    wintypes.LPCWSTR,  # pcwszUrl : LPCWSTR
    ctypes.c_void_p,  # pAutoProxyOptions : WINHTTP_AUTOPROXY_OPTIONS*
    wintypes.DWORD,  # cbInterfaceSelectionContext : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # pInterfaceSelectionContext : BYTE* optional
    ctypes.c_size_t,  # pContext : UINT_PTR optional
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WINHTTP.dll')
WinHttpGetProxyForUrlEx2 = Fiddle::Function.new(
  lib['WinHttpGetProxyForUrlEx2'],
  [
    Fiddle::TYPE_VOIDP,  # hResolver : void*
    Fiddle::TYPE_VOIDP,  # pcwszUrl : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pAutoProxyOptions : WINHTTP_AUTOPROXY_OPTIONS*
    -Fiddle::TYPE_INT,  # cbInterfaceSelectionContext : DWORD
    Fiddle::TYPE_VOIDP,  # pInterfaceSelectionContext : BYTE* optional
    Fiddle::TYPE_UINTPTR_T,  # pContext : UINT_PTR optional
  ],
  -Fiddle::TYPE_INT)
#[link(name = "winhttp")]
extern "system" {
    fn WinHttpGetProxyForUrlEx2(
        hResolver: *mut (),  // void*
        pcwszUrl: *const u16,  // LPCWSTR
        pAutoProxyOptions: *mut WINHTTP_AUTOPROXY_OPTIONS,  // WINHTTP_AUTOPROXY_OPTIONS*
        cbInterfaceSelectionContext: u32,  // DWORD
        pInterfaceSelectionContext: *mut u8,  // BYTE* optional
        pContext: usize  // UINT_PTR optional
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("WINHTTP.dll")]
public static extern uint WinHttpGetProxyForUrlEx2(IntPtr hResolver, [MarshalAs(UnmanagedType.LPWStr)] string pcwszUrl, IntPtr pAutoProxyOptions, uint cbInterfaceSelectionContext, IntPtr pInterfaceSelectionContext, UIntPtr pContext);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WINHTTP_WinHttpGetProxyForUrlEx2' -Namespace Win32 -PassThru
# $api::WinHttpGetProxyForUrlEx2(hResolver, pcwszUrl, pAutoProxyOptions, cbInterfaceSelectionContext, pInterfaceSelectionContext, pContext)
#uselib "WINHTTP.dll"
#func global WinHttpGetProxyForUrlEx2 "WinHttpGetProxyForUrlEx2" sptr, sptr, sptr, sptr, sptr, sptr
; WinHttpGetProxyForUrlEx2 hResolver, pcwszUrl, varptr(pAutoProxyOptions), cbInterfaceSelectionContext, varptr(pInterfaceSelectionContext), pContext   ; 戻り値は stat
; hResolver : void* -> "sptr"
; pcwszUrl : LPCWSTR -> "sptr"
; pAutoProxyOptions : WINHTTP_AUTOPROXY_OPTIONS* -> "sptr"
; cbInterfaceSelectionContext : DWORD -> "sptr"
; pInterfaceSelectionContext : BYTE* optional -> "sptr"
; pContext : UINT_PTR optional -> "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 "WINHTTP.dll"
#cfunc global WinHttpGetProxyForUrlEx2 "WinHttpGetProxyForUrlEx2" sptr, wstr, var, int, var, sptr
; res = WinHttpGetProxyForUrlEx2(hResolver, pcwszUrl, pAutoProxyOptions, cbInterfaceSelectionContext, pInterfaceSelectionContext, pContext)
; hResolver : void* -> "sptr"
; pcwszUrl : LPCWSTR -> "wstr"
; pAutoProxyOptions : WINHTTP_AUTOPROXY_OPTIONS* -> "var"
; cbInterfaceSelectionContext : DWORD -> "int"
; pInterfaceSelectionContext : BYTE* optional -> "var"
; pContext : UINT_PTR optional -> "sptr"
; ※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: 
; DWORD WinHttpGetProxyForUrlEx2(void* hResolver, LPCWSTR pcwszUrl, WINHTTP_AUTOPROXY_OPTIONS* pAutoProxyOptions, DWORD cbInterfaceSelectionContext, BYTE* pInterfaceSelectionContext, UINT_PTR pContext)
#uselib "WINHTTP.dll"
#cfunc global WinHttpGetProxyForUrlEx2 "WinHttpGetProxyForUrlEx2" intptr, wstr, var, int, var, intptr
; res = WinHttpGetProxyForUrlEx2(hResolver, pcwszUrl, pAutoProxyOptions, cbInterfaceSelectionContext, pInterfaceSelectionContext, pContext)
; hResolver : void* -> "intptr"
; pcwszUrl : LPCWSTR -> "wstr"
; pAutoProxyOptions : WINHTTP_AUTOPROXY_OPTIONS* -> "var"
; cbInterfaceSelectionContext : DWORD -> "int"
; pInterfaceSelectionContext : BYTE* optional -> "var"
; pContext : UINT_PTR optional -> "intptr"
; ※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 (
	winhttp = windows.NewLazySystemDLL("WINHTTP.dll")
	procWinHttpGetProxyForUrlEx2 = winhttp.NewProc("WinHttpGetProxyForUrlEx2")
)

// hResolver (void*), pcwszUrl (LPCWSTR), pAutoProxyOptions (WINHTTP_AUTOPROXY_OPTIONS*), cbInterfaceSelectionContext (DWORD), pInterfaceSelectionContext (BYTE* optional), pContext (UINT_PTR optional)
r1, _, err := procWinHttpGetProxyForUrlEx2.Call(
	uintptr(hResolver),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pcwszUrl))),
	uintptr(pAutoProxyOptions),
	uintptr(cbInterfaceSelectionContext),
	uintptr(pInterfaceSelectionContext),
	uintptr(pContext),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD
function WinHttpGetProxyForUrlEx2(
  hResolver: Pointer;   // void*
  pcwszUrl: PWideChar;   // LPCWSTR
  pAutoProxyOptions: Pointer;   // WINHTTP_AUTOPROXY_OPTIONS*
  cbInterfaceSelectionContext: DWORD;   // DWORD
  pInterfaceSelectionContext: Pointer;   // BYTE* optional
  pContext: NativeUInt   // UINT_PTR optional
): DWORD; stdcall;
  external 'WINHTTP.dll' name 'WinHttpGetProxyForUrlEx2';
result := DllCall("WINHTTP\WinHttpGetProxyForUrlEx2"
    , "Ptr", hResolver   ; void*
    , "WStr", pcwszUrl   ; LPCWSTR
    , "Ptr", pAutoProxyOptions   ; WINHTTP_AUTOPROXY_OPTIONS*
    , "UInt", cbInterfaceSelectionContext   ; DWORD
    , "Ptr", pInterfaceSelectionContext   ; BYTE* optional
    , "UPtr", pContext   ; UINT_PTR optional
    , "UInt")   ; return: DWORD
●WinHttpGetProxyForUrlEx2(hResolver, pcwszUrl, pAutoProxyOptions, cbInterfaceSelectionContext, pInterfaceSelectionContext, pContext) = DLL("WINHTTP.dll", "dword WinHttpGetProxyForUrlEx2(void*, char*, void*, dword, void*, int)")
# 呼び出し: WinHttpGetProxyForUrlEx2(hResolver, pcwszUrl, pAutoProxyOptions, cbInterfaceSelectionContext, pInterfaceSelectionContext, pContext)
# hResolver : void* -> "void*"
# pcwszUrl : LPCWSTR -> "char*"
# pAutoProxyOptions : WINHTTP_AUTOPROXY_OPTIONS* -> "void*"
# cbInterfaceSelectionContext : DWORD -> "dword"
# pInterfaceSelectionContext : BYTE* optional -> "void*"
# pContext : UINT_PTR optional -> "int"
# 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 "winhttp" fn WinHttpGetProxyForUrlEx2(
    hResolver: ?*anyopaque, // void*
    pcwszUrl: [*c]const u16, // LPCWSTR
    pAutoProxyOptions: [*c]WINHTTP_AUTOPROXY_OPTIONS, // WINHTTP_AUTOPROXY_OPTIONS*
    cbInterfaceSelectionContext: u32, // DWORD
    pInterfaceSelectionContext: [*c]u8, // BYTE* optional
    pContext: usize // UINT_PTR optional
) callconv(std.os.windows.WINAPI) u32;
proc WinHttpGetProxyForUrlEx2(
    hResolver: pointer,  # void*
    pcwszUrl: WideCString,  # LPCWSTR
    pAutoProxyOptions: ptr WINHTTP_AUTOPROXY_OPTIONS,  # WINHTTP_AUTOPROXY_OPTIONS*
    cbInterfaceSelectionContext: uint32,  # DWORD
    pInterfaceSelectionContext: ptr uint8,  # BYTE* optional
    pContext: uint  # UINT_PTR optional
): uint32 {.importc: "WinHttpGetProxyForUrlEx2", stdcall, dynlib: "WINHTTP.dll".}
pragma(lib, "winhttp");
extern(Windows)
uint WinHttpGetProxyForUrlEx2(
    void* hResolver,   // void*
    const(wchar)* pcwszUrl,   // LPCWSTR
    WINHTTP_AUTOPROXY_OPTIONS* pAutoProxyOptions,   // WINHTTP_AUTOPROXY_OPTIONS*
    uint cbInterfaceSelectionContext,   // DWORD
    ubyte* pInterfaceSelectionContext,   // BYTE* optional
    size_t pContext   // UINT_PTR optional
);
ccall((:WinHttpGetProxyForUrlEx2, "WINHTTP.dll"), stdcall, UInt32,
      (Ptr{Cvoid}, Cwstring, Ptr{WINHTTP_AUTOPROXY_OPTIONS}, UInt32, Ptr{UInt8}, Csize_t),
      hResolver, pcwszUrl, pAutoProxyOptions, cbInterfaceSelectionContext, pInterfaceSelectionContext, pContext)
# hResolver : void* -> Ptr{Cvoid}
# pcwszUrl : LPCWSTR -> Cwstring
# pAutoProxyOptions : WINHTTP_AUTOPROXY_OPTIONS* -> Ptr{WINHTTP_AUTOPROXY_OPTIONS}
# cbInterfaceSelectionContext : DWORD -> UInt32
# pInterfaceSelectionContext : BYTE* optional -> Ptr{UInt8}
# pContext : UINT_PTR optional -> Csize_t
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
local ffi = require("ffi")
ffi.cdef[[
uint32_t WinHttpGetProxyForUrlEx2(
    void* hResolver,
    const uint16_t* pcwszUrl,
    void* pAutoProxyOptions,
    uint32_t cbInterfaceSelectionContext,
    uint8_t* pInterfaceSelectionContext,
    uintptr_t pContext);
]]
local winhttp = ffi.load("winhttp")
-- winhttp.WinHttpGetProxyForUrlEx2(hResolver, pcwszUrl, pAutoProxyOptions, cbInterfaceSelectionContext, pInterfaceSelectionContext, pContext)
-- hResolver : void*
-- pcwszUrl : LPCWSTR
-- pAutoProxyOptions : WINHTTP_AUTOPROXY_OPTIONS*
-- cbInterfaceSelectionContext : DWORD
-- pInterfaceSelectionContext : BYTE* optional
-- pContext : UINT_PTR optional
-- 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('WINHTTP.dll');
const WinHttpGetProxyForUrlEx2 = lib.func('__stdcall', 'WinHttpGetProxyForUrlEx2', 'uint32_t', ['void *', 'str16', 'void *', 'uint32_t', 'uint8_t *', 'uintptr_t']);
// WinHttpGetProxyForUrlEx2(hResolver, pcwszUrl, pAutoProxyOptions, cbInterfaceSelectionContext, pInterfaceSelectionContext, pContext)
// hResolver : void* -> 'void *'
// pcwszUrl : LPCWSTR -> 'str16'
// pAutoProxyOptions : WINHTTP_AUTOPROXY_OPTIONS* -> 'void *'
// cbInterfaceSelectionContext : DWORD -> 'uint32_t'
// pInterfaceSelectionContext : BYTE* optional -> 'uint8_t *'
// pContext : UINT_PTR optional -> 'uintptr_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("WINHTTP.dll", {
  WinHttpGetProxyForUrlEx2: { parameters: ["pointer", "buffer", "pointer", "u32", "pointer", "usize"], result: "u32" },
});
// lib.symbols.WinHttpGetProxyForUrlEx2(hResolver, pcwszUrl, pAutoProxyOptions, cbInterfaceSelectionContext, pInterfaceSelectionContext, pContext)
// hResolver : void* -> "pointer"
// pcwszUrl : LPCWSTR -> "buffer"
// pAutoProxyOptions : WINHTTP_AUTOPROXY_OPTIONS* -> "pointer"
// cbInterfaceSelectionContext : DWORD -> "u32"
// pInterfaceSelectionContext : BYTE* optional -> "pointer"
// pContext : UINT_PTR optional -> "usize"
// 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 WinHttpGetProxyForUrlEx2(
    void* hResolver,
    const uint16_t* pcwszUrl,
    void* pAutoProxyOptions,
    uint32_t cbInterfaceSelectionContext,
    uint8_t* pInterfaceSelectionContext,
    size_t pContext);
C, "WINHTTP.dll");
// $ffi->WinHttpGetProxyForUrlEx2(hResolver, pcwszUrl, pAutoProxyOptions, cbInterfaceSelectionContext, pInterfaceSelectionContext, pContext);
// hResolver : void*
// pcwszUrl : LPCWSTR
// pAutoProxyOptions : WINHTTP_AUTOPROXY_OPTIONS*
// cbInterfaceSelectionContext : DWORD
// pInterfaceSelectionContext : BYTE* optional
// pContext : UINT_PTR optional
// 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 Winhttp extends StdCallLibrary {
    Winhttp INSTANCE = Native.load("winhttp", Winhttp.class);
    int WinHttpGetProxyForUrlEx2(
        Pointer hResolver,   // void*
        WString pcwszUrl,   // LPCWSTR
        Pointer pAutoProxyOptions,   // WINHTTP_AUTOPROXY_OPTIONS*
        int cbInterfaceSelectionContext,   // DWORD
        byte[] pInterfaceSelectionContext,   // BYTE* optional
        long pContext   // UINT_PTR optional
    );
}
@[Link("winhttp")]
lib LibWINHTTP
  fun WinHttpGetProxyForUrlEx2 = WinHttpGetProxyForUrlEx2(
    hResolver : Void*,   # void*
    pcwszUrl : UInt16*,   # LPCWSTR
    pAutoProxyOptions : WINHTTP_AUTOPROXY_OPTIONS*,   # WINHTTP_AUTOPROXY_OPTIONS*
    cbInterfaceSelectionContext : UInt32,   # DWORD
    pInterfaceSelectionContext : UInt8*,   # BYTE* optional
    pContext : LibC::SizeT   # UINT_PTR optional
  ) : 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 WinHttpGetProxyForUrlEx2Native = Uint32 Function(Pointer<Void>, Pointer<Utf16>, Pointer<Void>, Uint32, Pointer<Uint8>, UintPtr);
typedef WinHttpGetProxyForUrlEx2Dart = int Function(Pointer<Void>, Pointer<Utf16>, Pointer<Void>, int, Pointer<Uint8>, int);
final WinHttpGetProxyForUrlEx2 = DynamicLibrary.open('WINHTTP.dll')
    .lookupFunction<WinHttpGetProxyForUrlEx2Native, WinHttpGetProxyForUrlEx2Dart>('WinHttpGetProxyForUrlEx2');
// hResolver : void* -> Pointer<Void>
// pcwszUrl : LPCWSTR -> Pointer<Utf16>
// pAutoProxyOptions : WINHTTP_AUTOPROXY_OPTIONS* -> Pointer<Void>
// cbInterfaceSelectionContext : DWORD -> Uint32
// pInterfaceSelectionContext : BYTE* optional -> Pointer<Uint8>
// pContext : UINT_PTR optional -> UintPtr
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function WinHttpGetProxyForUrlEx2(
  hResolver: Pointer;   // void*
  pcwszUrl: PWideChar;   // LPCWSTR
  pAutoProxyOptions: Pointer;   // WINHTTP_AUTOPROXY_OPTIONS*
  cbInterfaceSelectionContext: DWORD;   // DWORD
  pInterfaceSelectionContext: Pointer;   // BYTE* optional
  pContext: NativeUInt   // UINT_PTR optional
): DWORD; stdcall;
  external 'WINHTTP.dll' name 'WinHttpGetProxyForUrlEx2';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "WinHttpGetProxyForUrlEx2"
  c_WinHttpGetProxyForUrlEx2 :: Ptr () -> CWString -> Ptr () -> Word32 -> Ptr Word8 -> CUIntPtr -> IO Word32
-- hResolver : void* -> Ptr ()
-- pcwszUrl : LPCWSTR -> CWString
-- pAutoProxyOptions : WINHTTP_AUTOPROXY_OPTIONS* -> Ptr ()
-- cbInterfaceSelectionContext : DWORD -> Word32
-- pInterfaceSelectionContext : BYTE* optional -> Ptr Word8
-- pContext : UINT_PTR optional -> CUIntPtr
-- 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 winhttpgetproxyforurlex2 =
  foreign "WinHttpGetProxyForUrlEx2"
    ((ptr void) @-> (ptr uint16_t) @-> (ptr void) @-> uint32_t @-> (ptr uint8_t) @-> size_t @-> returning uint32_t)
(* hResolver : void* -> (ptr void) *)
(* pcwszUrl : LPCWSTR -> (ptr uint16_t) *)
(* pAutoProxyOptions : WINHTTP_AUTOPROXY_OPTIONS* -> (ptr void) *)
(* cbInterfaceSelectionContext : DWORD -> uint32_t *)
(* pInterfaceSelectionContext : BYTE* optional -> (ptr uint8_t) *)
(* pContext : UINT_PTR optional -> size_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 winhttp (t "WINHTTP.dll"))
(cffi:use-foreign-library winhttp)

(cffi:defcfun ("WinHttpGetProxyForUrlEx2" win-http-get-proxy-for-url-ex2 :convention :stdcall) :uint32
  (h-resolver :pointer)   ; void*
  (pcwsz-url (:string :encoding :utf-16le))   ; LPCWSTR
  (p-auto-proxy-options :pointer)   ; WINHTTP_AUTOPROXY_OPTIONS*
  (cb-interface-selection-context :uint32)   ; DWORD
  (p-interface-selection-context :pointer)   ; BYTE* optional
  (p-context :uint64))   ; UINT_PTR optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $WinHttpGetProxyForUrlEx2 = Win32::API::More->new('WINHTTP',
    'DWORD WinHttpGetProxyForUrlEx2(LPVOID hResolver, LPCWSTR pcwszUrl, LPVOID pAutoProxyOptions, DWORD cbInterfaceSelectionContext, LPVOID pInterfaceSelectionContext, WPARAM pContext)');
# my $ret = $WinHttpGetProxyForUrlEx2->Call($hResolver, $pcwszUrl, $pAutoProxyOptions, $cbInterfaceSelectionContext, $pInterfaceSelectionContext, $pContext);
# hResolver : void* -> LPVOID
# pcwszUrl : LPCWSTR -> LPCWSTR
# pAutoProxyOptions : WINHTTP_AUTOPROXY_OPTIONS* -> LPVOID
# cbInterfaceSelectionContext : DWORD -> DWORD
# pInterfaceSelectionContext : BYTE* optional -> LPVOID
# pContext : UINT_PTR optional -> WPARAM
# 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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