WinHttpFreeProxySettingsEx

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

DWORD WinHttpFreeProxySettingsEx(
    WINHTTP_PROXY_SETTINGS_TYPE ProxySettingsType,
    void* pProxySettingsEx
);

<DllImport("WINHTTP.dll", ExactSpelling:=True)>
Public Shared Function WinHttpFreeProxySettingsEx(
    ProxySettingsType As Integer,   ' WINHTTP_PROXY_SETTINGS_TYPE
    pProxySettingsEx As IntPtr   ' void*
) As UInteger
End Function

' ProxySettingsType : WINHTTP_PROXY_SETTINGS_TYPE
' pProxySettingsEx : void*
Declare PtrSafe Function WinHttpFreeProxySettingsEx Lib "winhttp" ( _
    ByVal ProxySettingsType As Long, _
    ByVal pProxySettingsEx 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

WinHttpFreeProxySettingsEx = ctypes.windll.winhttp.WinHttpFreeProxySettingsEx
WinHttpFreeProxySettingsEx.restype = wintypes.DWORD
WinHttpFreeProxySettingsEx.argtypes = [
    ctypes.c_int,  # ProxySettingsType : WINHTTP_PROXY_SETTINGS_TYPE
    ctypes.POINTER(None),  # pProxySettingsEx : void*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WINHTTP.dll')
WinHttpFreeProxySettingsEx = Fiddle::Function.new(
  lib['WinHttpFreeProxySettingsEx'],
  [
    Fiddle::TYPE_INT,  # ProxySettingsType : WINHTTP_PROXY_SETTINGS_TYPE
    Fiddle::TYPE_VOIDP,  # pProxySettingsEx : void*
  ],
  -Fiddle::TYPE_INT)

#[link(name = "winhttp")]
extern "system" {
    fn WinHttpFreeProxySettingsEx(
        ProxySettingsType: i32,  // WINHTTP_PROXY_SETTINGS_TYPE
        pProxySettingsEx: *mut ()  // void*
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WINHTTP.dll")]
public static extern uint WinHttpFreeProxySettingsEx(int ProxySettingsType, IntPtr pProxySettingsEx);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WINHTTP_WinHttpFreeProxySettingsEx' -Namespace Win32 -PassThru
# $api::WinHttpFreeProxySettingsEx(ProxySettingsType, pProxySettingsEx)

#uselib "WINHTTP.dll"
#func global WinHttpFreeProxySettingsEx "WinHttpFreeProxySettingsEx" sptr, sptr
; WinHttpFreeProxySettingsEx ProxySettingsType, pProxySettingsEx   ; 戻り値は stat
; ProxySettingsType : WINHTTP_PROXY_SETTINGS_TYPE -> "sptr"
; pProxySettingsEx : void* -> "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 "WINHTTP.dll"
#cfunc global WinHttpFreeProxySettingsEx "WinHttpFreeProxySettingsEx" int, sptr
; res = WinHttpFreeProxySettingsEx(ProxySettingsType, pProxySettingsEx)
; ProxySettingsType : WINHTTP_PROXY_SETTINGS_TYPE -> "int"
; pProxySettingsEx : void* -> "sptr"

; DWORD WinHttpFreeProxySettingsEx(WINHTTP_PROXY_SETTINGS_TYPE ProxySettingsType, void* pProxySettingsEx)
#uselib "WINHTTP.dll"
#cfunc global WinHttpFreeProxySettingsEx "WinHttpFreeProxySettingsEx" int, intptr
; res = WinHttpFreeProxySettingsEx(ProxySettingsType, pProxySettingsEx)
; ProxySettingsType : WINHTTP_PROXY_SETTINGS_TYPE -> "int"
; pProxySettingsEx : void* -> "intptr"

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

var (
	winhttp = windows.NewLazySystemDLL("WINHTTP.dll")
	procWinHttpFreeProxySettingsEx = winhttp.NewProc("WinHttpFreeProxySettingsEx")
)

// ProxySettingsType (WINHTTP_PROXY_SETTINGS_TYPE), pProxySettingsEx (void*)
r1, _, err := procWinHttpFreeProxySettingsEx.Call(
	uintptr(ProxySettingsType),
	uintptr(pProxySettingsEx),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function WinHttpFreeProxySettingsEx(
  ProxySettingsType: Integer;   // WINHTTP_PROXY_SETTINGS_TYPE
  pProxySettingsEx: Pointer   // void*
): DWORD; stdcall;
  external 'WINHTTP.dll' name 'WinHttpFreeProxySettingsEx';

result := DllCall("WINHTTP\WinHttpFreeProxySettingsEx"
    , "Int", ProxySettingsType   ; WINHTTP_PROXY_SETTINGS_TYPE
    , "Ptr", pProxySettingsEx   ; void*
    , "UInt")   ; return: DWORD

●WinHttpFreeProxySettingsEx(ProxySettingsType, pProxySettingsEx) = DLL("WINHTTP.dll", "dword WinHttpFreeProxySettingsEx(int, void*)")
# 呼び出し: WinHttpFreeProxySettingsEx(ProxySettingsType, pProxySettingsEx)
# ProxySettingsType : WINHTTP_PROXY_SETTINGS_TYPE -> "int"
# pProxySettingsEx : void* -> "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 "winhttp" fn WinHttpFreeProxySettingsEx(
    ProxySettingsType: i32, // WINHTTP_PROXY_SETTINGS_TYPE
    pProxySettingsEx: ?*anyopaque // void*
) callconv(std.os.windows.WINAPI) u32;

proc WinHttpFreeProxySettingsEx(
    ProxySettingsType: int32,  # WINHTTP_PROXY_SETTINGS_TYPE
    pProxySettingsEx: pointer  # void*
): uint32 {.importc: "WinHttpFreeProxySettingsEx", stdcall, dynlib: "WINHTTP.dll".}

pragma(lib, "winhttp");
extern(Windows)
uint WinHttpFreeProxySettingsEx(
    int ProxySettingsType,   // WINHTTP_PROXY_SETTINGS_TYPE
    void* pProxySettingsEx   // void*
);

ccall((:WinHttpFreeProxySettingsEx, "WINHTTP.dll"), stdcall, UInt32,
      (Int32, Ptr{Cvoid}),
      ProxySettingsType, pProxySettingsEx)
# ProxySettingsType : WINHTTP_PROXY_SETTINGS_TYPE -> Int32
# pProxySettingsEx : void* -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t WinHttpFreeProxySettingsEx(
    int32_t ProxySettingsType,
    void* pProxySettingsEx);
]]
local winhttp = ffi.load("winhttp")
-- winhttp.WinHttpFreeProxySettingsEx(ProxySettingsType, pProxySettingsEx)
-- ProxySettingsType : WINHTTP_PROXY_SETTINGS_TYPE
-- pProxySettingsEx : void*
-- 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 WinHttpFreeProxySettingsEx = lib.func('__stdcall', 'WinHttpFreeProxySettingsEx', 'uint32_t', ['int32_t', 'void *']);
// WinHttpFreeProxySettingsEx(ProxySettingsType, pProxySettingsEx)
// ProxySettingsType : WINHTTP_PROXY_SETTINGS_TYPE -> 'int32_t'
// pProxySettingsEx : void* -> '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("WINHTTP.dll", {
  WinHttpFreeProxySettingsEx: { parameters: ["i32", "pointer"], result: "u32" },
});
// lib.symbols.WinHttpFreeProxySettingsEx(ProxySettingsType, pProxySettingsEx)
// ProxySettingsType : WINHTTP_PROXY_SETTINGS_TYPE -> "i32"
// pProxySettingsEx : void* -> "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 WinHttpFreeProxySettingsEx(
    int32_t ProxySettingsType,
    void* pProxySettingsEx);
C, "WINHTTP.dll");
// $ffi->WinHttpFreeProxySettingsEx(ProxySettingsType, pProxySettingsEx);
// ProxySettingsType : WINHTTP_PROXY_SETTINGS_TYPE
// pProxySettingsEx : void*
// 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 WinHttpFreeProxySettingsEx(
        int ProxySettingsType,   // WINHTTP_PROXY_SETTINGS_TYPE
        Pointer pProxySettingsEx   // void*
    );
}

@[Link("winhttp")]
lib LibWINHTTP
  fun WinHttpFreeProxySettingsEx = WinHttpFreeProxySettingsEx(
    ProxySettingsType : Int32,   # WINHTTP_PROXY_SETTINGS_TYPE
    pProxySettingsEx : Void*   # void*
  ) : 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 WinHttpFreeProxySettingsExNative = Uint32 Function(Int32, Pointer<Void>);
typedef WinHttpFreeProxySettingsExDart = int Function(int, Pointer<Void>);
final WinHttpFreeProxySettingsEx = DynamicLibrary.open('WINHTTP.dll')
    .lookupFunction<WinHttpFreeProxySettingsExNative, WinHttpFreeProxySettingsExDart>('WinHttpFreeProxySettingsEx');
// ProxySettingsType : WINHTTP_PROXY_SETTINGS_TYPE -> Int32
// pProxySettingsEx : void* -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function WinHttpFreeProxySettingsEx(
  ProxySettingsType: Integer;   // WINHTTP_PROXY_SETTINGS_TYPE
  pProxySettingsEx: Pointer   // void*
): DWORD; stdcall;
  external 'WINHTTP.dll' name 'WinHttpFreeProxySettingsEx';

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

foreign import stdcall safe "WinHttpFreeProxySettingsEx"
  c_WinHttpFreeProxySettingsEx :: Int32 -> Ptr () -> IO Word32
-- ProxySettingsType : WINHTTP_PROXY_SETTINGS_TYPE -> Int32
-- pProxySettingsEx : void* -> 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 winhttpfreeproxysettingsex =
  foreign "WinHttpFreeProxySettingsEx"
    (int32_t @-> (ptr void) @-> returning uint32_t)
(* ProxySettingsType : WINHTTP_PROXY_SETTINGS_TYPE -> int32_t *)
(* pProxySettingsEx : void* -> (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 winhttp (t "WINHTTP.dll"))
(cffi:use-foreign-library winhttp)

(cffi:defcfun ("WinHttpFreeProxySettingsEx" win-http-free-proxy-settings-ex :convention :stdcall) :uint32
  (proxy-settings-type :int32)   ; WINHTTP_PROXY_SETTINGS_TYPE
  (p-proxy-settings-ex :pointer))   ; void*
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $WinHttpFreeProxySettingsEx = Win32::API::More->new('WINHTTP',
    'DWORD WinHttpFreeProxySettingsEx(int ProxySettingsType, LPVOID pProxySettingsEx)');
# my $ret = $WinHttpFreeProxySettingsEx->Call($ProxySettingsType, $pProxySettingsEx);
# ProxySettingsType : WINHTTP_PROXY_SETTINGS_TYPE -> int
# pProxySettingsEx : void* -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。