WinHttpGetProxySettingsVersion

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

DWORD WinHttpGetProxySettingsVersion(
    void* hSession,
    DWORD* pdwProxySettingsVersion
);

<DllImport("WINHTTP.dll", ExactSpelling:=True)>
Public Shared Function WinHttpGetProxySettingsVersion(
    hSession As IntPtr,   ' void*
    <Out> ByRef pdwProxySettingsVersion As UInteger   ' DWORD* out
) As UInteger
End Function

' hSession : void*
' pdwProxySettingsVersion : DWORD* out
Declare PtrSafe Function WinHttpGetProxySettingsVersion Lib "winhttp" ( _
    ByVal hSession As LongPtr, _
    ByRef pdwProxySettingsVersion As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

WinHttpGetProxySettingsVersion = ctypes.windll.winhttp.WinHttpGetProxySettingsVersion
WinHttpGetProxySettingsVersion.restype = wintypes.DWORD
WinHttpGetProxySettingsVersion.argtypes = [
    ctypes.POINTER(None),  # hSession : void*
    ctypes.POINTER(wintypes.DWORD),  # pdwProxySettingsVersion : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WINHTTP.dll')
WinHttpGetProxySettingsVersion = Fiddle::Function.new(
  lib['WinHttpGetProxySettingsVersion'],
  [
    Fiddle::TYPE_VOIDP,  # hSession : void*
    Fiddle::TYPE_VOIDP,  # pdwProxySettingsVersion : DWORD* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "winhttp")]
extern "system" {
    fn WinHttpGetProxySettingsVersion(
        hSession: *mut (),  // void*
        pdwProxySettingsVersion: *mut u32  // DWORD* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WINHTTP.dll")]
public static extern uint WinHttpGetProxySettingsVersion(IntPtr hSession, out uint pdwProxySettingsVersion);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WINHTTP_WinHttpGetProxySettingsVersion' -Namespace Win32 -PassThru
# $api::WinHttpGetProxySettingsVersion(hSession, pdwProxySettingsVersion)

#uselib "WINHTTP.dll"
#func global WinHttpGetProxySettingsVersion "WinHttpGetProxySettingsVersion" sptr, sptr
; WinHttpGetProxySettingsVersion hSession, varptr(pdwProxySettingsVersion)   ; 戻り値は stat
; hSession : void* -> "sptr"
; pdwProxySettingsVersion : DWORD* 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 (
	winhttp = windows.NewLazySystemDLL("WINHTTP.dll")
	procWinHttpGetProxySettingsVersion = winhttp.NewProc("WinHttpGetProxySettingsVersion")
)

// hSession (void*), pdwProxySettingsVersion (DWORD* out)
r1, _, err := procWinHttpGetProxySettingsVersion.Call(
	uintptr(hSession),
	uintptr(pdwProxySettingsVersion),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function WinHttpGetProxySettingsVersion(
  hSession: Pointer;   // void*
  pdwProxySettingsVersion: Pointer   // DWORD* out
): DWORD; stdcall;
  external 'WINHTTP.dll' name 'WinHttpGetProxySettingsVersion';

result := DllCall("WINHTTP\WinHttpGetProxySettingsVersion"
    , "Ptr", hSession   ; void*
    , "Ptr", pdwProxySettingsVersion   ; DWORD* out
    , "UInt")   ; return: DWORD

●WinHttpGetProxySettingsVersion(hSession, pdwProxySettingsVersion) = DLL("WINHTTP.dll", "dword WinHttpGetProxySettingsVersion(void*, void*)")
# 呼び出し: WinHttpGetProxySettingsVersion(hSession, pdwProxySettingsVersion)
# hSession : void* -> "void*"
# pdwProxySettingsVersion : DWORD* 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 "winhttp" fn WinHttpGetProxySettingsVersion(
    hSession: ?*anyopaque, // void*
    pdwProxySettingsVersion: [*c]u32 // DWORD* out
) callconv(std.os.windows.WINAPI) u32;

proc WinHttpGetProxySettingsVersion(
    hSession: pointer,  # void*
    pdwProxySettingsVersion: ptr uint32  # DWORD* out
): uint32 {.importc: "WinHttpGetProxySettingsVersion", stdcall, dynlib: "WINHTTP.dll".}

pragma(lib, "winhttp");
extern(Windows)
uint WinHttpGetProxySettingsVersion(
    void* hSession,   // void*
    uint* pdwProxySettingsVersion   // DWORD* out
);

ccall((:WinHttpGetProxySettingsVersion, "WINHTTP.dll"), stdcall, UInt32,
      (Ptr{Cvoid}, Ptr{UInt32}),
      hSession, pdwProxySettingsVersion)
# hSession : void* -> Ptr{Cvoid}
# pdwProxySettingsVersion : DWORD* out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t WinHttpGetProxySettingsVersion(
    void* hSession,
    uint32_t* pdwProxySettingsVersion);
]]
local winhttp = ffi.load("winhttp")
-- winhttp.WinHttpGetProxySettingsVersion(hSession, pdwProxySettingsVersion)
-- hSession : void*
-- pdwProxySettingsVersion : DWORD* 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('WINHTTP.dll');
const WinHttpGetProxySettingsVersion = lib.func('__stdcall', 'WinHttpGetProxySettingsVersion', 'uint32_t', ['void *', 'uint32_t *']);
// WinHttpGetProxySettingsVersion(hSession, pdwProxySettingsVersion)
// hSession : void* -> 'void *'
// pdwProxySettingsVersion : DWORD* out -> 'uint32_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", {
  WinHttpGetProxySettingsVersion: { parameters: ["pointer", "pointer"], result: "u32" },
});
// lib.symbols.WinHttpGetProxySettingsVersion(hSession, pdwProxySettingsVersion)
// hSession : void* -> "pointer"
// pdwProxySettingsVersion : DWORD* 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 WinHttpGetProxySettingsVersion(
    void* hSession,
    uint32_t* pdwProxySettingsVersion);
C, "WINHTTP.dll");
// $ffi->WinHttpGetProxySettingsVersion(hSession, pdwProxySettingsVersion);
// hSession : void*
// pdwProxySettingsVersion : DWORD* 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 Winhttp extends StdCallLibrary {
    Winhttp INSTANCE = Native.load("winhttp", Winhttp.class);
    int WinHttpGetProxySettingsVersion(
        Pointer hSession,   // void*
        IntByReference pdwProxySettingsVersion   // DWORD* out
    );
}

@[Link("winhttp")]
lib LibWINHTTP
  fun WinHttpGetProxySettingsVersion = WinHttpGetProxySettingsVersion(
    hSession : Void*,   # void*
    pdwProxySettingsVersion : UInt32*   # DWORD* 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 WinHttpGetProxySettingsVersionNative = Uint32 Function(Pointer<Void>, Pointer<Uint32>);
typedef WinHttpGetProxySettingsVersionDart = int Function(Pointer<Void>, Pointer<Uint32>);
final WinHttpGetProxySettingsVersion = DynamicLibrary.open('WINHTTP.dll')
    .lookupFunction<WinHttpGetProxySettingsVersionNative, WinHttpGetProxySettingsVersionDart>('WinHttpGetProxySettingsVersion');
// hSession : void* -> Pointer<Void>
// pdwProxySettingsVersion : DWORD* out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function WinHttpGetProxySettingsVersion(
  hSession: Pointer;   // void*
  pdwProxySettingsVersion: Pointer   // DWORD* out
): DWORD; stdcall;
  external 'WINHTTP.dll' name 'WinHttpGetProxySettingsVersion';

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

foreign import stdcall safe "WinHttpGetProxySettingsVersion"
  c_WinHttpGetProxySettingsVersion :: Ptr () -> Ptr Word32 -> IO Word32
-- hSession : void* -> Ptr ()
-- pdwProxySettingsVersion : DWORD* out -> Ptr Word32
-- 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 winhttpgetproxysettingsversion =
  foreign "WinHttpGetProxySettingsVersion"
    ((ptr void) @-> (ptr uint32_t) @-> returning uint32_t)
(* hSession : void* -> (ptr void) *)
(* pdwProxySettingsVersion : DWORD* out -> (ptr uint32_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 ("WinHttpGetProxySettingsVersion" win-http-get-proxy-settings-version :convention :stdcall) :uint32
  (h-session :pointer)   ; void*
  (pdw-proxy-settings-version :pointer))   ; DWORD* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

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