WinHttpSetOption

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

BOOL WinHttpSetOption(
    void* hInternet,   // optional
    DWORD dwOption,
    void* lpBuffer,   // optional
    DWORD dwBufferLength
);

<DllImport("WINHTTP.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WinHttpSetOption(
    hInternet As IntPtr,   ' void* optional
    dwOption As UInteger,   ' DWORD
    lpBuffer As IntPtr,   ' void* optional
    dwBufferLength As UInteger   ' DWORD
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' hInternet : void* optional
' dwOption : DWORD
' lpBuffer : void* optional
' dwBufferLength : DWORD
Declare PtrSafe Function WinHttpSetOption Lib "winhttp" ( _
    ByVal hInternet As LongPtr, _
    ByVal dwOption As Long, _
    ByVal lpBuffer As LongPtr, _
    ByVal dwBufferLength 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

WinHttpSetOption = ctypes.windll.winhttp.WinHttpSetOption
WinHttpSetOption.restype = wintypes.BOOL
WinHttpSetOption.argtypes = [
    ctypes.POINTER(None),  # hInternet : void* optional
    wintypes.DWORD,  # dwOption : DWORD
    ctypes.POINTER(None),  # lpBuffer : void* optional
    wintypes.DWORD,  # dwBufferLength : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WINHTTP.dll')
WinHttpSetOption = Fiddle::Function.new(
  lib['WinHttpSetOption'],
  [
    Fiddle::TYPE_VOIDP,  # hInternet : void* optional
    -Fiddle::TYPE_INT,  # dwOption : DWORD
    Fiddle::TYPE_VOIDP,  # lpBuffer : void* optional
    -Fiddle::TYPE_INT,  # dwBufferLength : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "winhttp")]
extern "system" {
    fn WinHttpSetOption(
        hInternet: *mut (),  // void* optional
        dwOption: u32,  // DWORD
        lpBuffer: *mut (),  // void* optional
        dwBufferLength: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("WINHTTP.dll", SetLastError = true)]
public static extern bool WinHttpSetOption(IntPtr hInternet, uint dwOption, IntPtr lpBuffer, uint dwBufferLength);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WINHTTP_WinHttpSetOption' -Namespace Win32 -PassThru
# $api::WinHttpSetOption(hInternet, dwOption, lpBuffer, dwBufferLength)

#uselib "WINHTTP.dll"
#func global WinHttpSetOption "WinHttpSetOption" sptr, sptr, sptr, sptr
; WinHttpSetOption hInternet, dwOption, lpBuffer, dwBufferLength   ; 戻り値は stat
; hInternet : void* optional -> "sptr"
; dwOption : DWORD -> "sptr"
; lpBuffer : void* optional -> "sptr"
; dwBufferLength : DWORD -> "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 WinHttpSetOption "WinHttpSetOption" sptr, int, sptr, int
; res = WinHttpSetOption(hInternet, dwOption, lpBuffer, dwBufferLength)
; hInternet : void* optional -> "sptr"
; dwOption : DWORD -> "int"
; lpBuffer : void* optional -> "sptr"
; dwBufferLength : DWORD -> "int"

; BOOL WinHttpSetOption(void* hInternet, DWORD dwOption, void* lpBuffer, DWORD dwBufferLength)
#uselib "WINHTTP.dll"
#cfunc global WinHttpSetOption "WinHttpSetOption" intptr, int, intptr, int
; res = WinHttpSetOption(hInternet, dwOption, lpBuffer, dwBufferLength)
; hInternet : void* optional -> "intptr"
; dwOption : DWORD -> "int"
; lpBuffer : void* optional -> "intptr"
; dwBufferLength : DWORD -> "int"

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

var (
	winhttp = windows.NewLazySystemDLL("WINHTTP.dll")
	procWinHttpSetOption = winhttp.NewProc("WinHttpSetOption")
)

// hInternet (void* optional), dwOption (DWORD), lpBuffer (void* optional), dwBufferLength (DWORD)
r1, _, err := procWinHttpSetOption.Call(
	uintptr(hInternet),
	uintptr(dwOption),
	uintptr(lpBuffer),
	uintptr(dwBufferLength),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function WinHttpSetOption(
  hInternet: Pointer;   // void* optional
  dwOption: DWORD;   // DWORD
  lpBuffer: Pointer;   // void* optional
  dwBufferLength: DWORD   // DWORD
): BOOL; stdcall;
  external 'WINHTTP.dll' name 'WinHttpSetOption';

result := DllCall("WINHTTP\WinHttpSetOption"
    , "Ptr", hInternet   ; void* optional
    , "UInt", dwOption   ; DWORD
    , "Ptr", lpBuffer   ; void* optional
    , "UInt", dwBufferLength   ; DWORD
    , "Int")   ; return: BOOL

●WinHttpSetOption(hInternet, dwOption, lpBuffer, dwBufferLength) = DLL("WINHTTP.dll", "bool WinHttpSetOption(void*, dword, void*, dword)")
# 呼び出し: WinHttpSetOption(hInternet, dwOption, lpBuffer, dwBufferLength)
# hInternet : void* optional -> "void*"
# dwOption : DWORD -> "dword"
# lpBuffer : void* optional -> "void*"
# dwBufferLength : DWORD -> "dword"
# 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 WinHttpSetOption(
    hInternet: ?*anyopaque, // void* optional
    dwOption: u32, // DWORD
    lpBuffer: ?*anyopaque, // void* optional
    dwBufferLength: u32 // DWORD
) callconv(std.os.windows.WINAPI) i32;

proc WinHttpSetOption(
    hInternet: pointer,  # void* optional
    dwOption: uint32,  # DWORD
    lpBuffer: pointer,  # void* optional
    dwBufferLength: uint32  # DWORD
): int32 {.importc: "WinHttpSetOption", stdcall, dynlib: "WINHTTP.dll".}

pragma(lib, "winhttp");
extern(Windows)
int WinHttpSetOption(
    void* hInternet,   // void* optional
    uint dwOption,   // DWORD
    void* lpBuffer,   // void* optional
    uint dwBufferLength   // DWORD
);

ccall((:WinHttpSetOption, "WINHTTP.dll"), stdcall, Int32,
      (Ptr{Cvoid}, UInt32, Ptr{Cvoid}, UInt32),
      hInternet, dwOption, lpBuffer, dwBufferLength)
# hInternet : void* optional -> Ptr{Cvoid}
# dwOption : DWORD -> UInt32
# lpBuffer : void* optional -> Ptr{Cvoid}
# dwBufferLength : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t WinHttpSetOption(
    void* hInternet,
    uint32_t dwOption,
    void* lpBuffer,
    uint32_t dwBufferLength);
]]
local winhttp = ffi.load("winhttp")
-- winhttp.WinHttpSetOption(hInternet, dwOption, lpBuffer, dwBufferLength)
-- hInternet : void* optional
-- dwOption : DWORD
-- lpBuffer : void* optional
-- dwBufferLength : DWORD
-- 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 WinHttpSetOption = lib.func('__stdcall', 'WinHttpSetOption', 'int32_t', ['void *', 'uint32_t', 'void *', 'uint32_t']);
// WinHttpSetOption(hInternet, dwOption, lpBuffer, dwBufferLength)
// hInternet : void* optional -> 'void *'
// dwOption : DWORD -> 'uint32_t'
// lpBuffer : void* optional -> 'void *'
// dwBufferLength : DWORD -> '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", {
  WinHttpSetOption: { parameters: ["pointer", "u32", "pointer", "u32"], result: "i32" },
});
// lib.symbols.WinHttpSetOption(hInternet, dwOption, lpBuffer, dwBufferLength)
// hInternet : void* optional -> "pointer"
// dwOption : DWORD -> "u32"
// lpBuffer : void* optional -> "pointer"
// dwBufferLength : DWORD -> "u32"
// 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 WinHttpSetOption(
    void* hInternet,
    uint32_t dwOption,
    void* lpBuffer,
    uint32_t dwBufferLength);
C, "WINHTTP.dll");
// $ffi->WinHttpSetOption(hInternet, dwOption, lpBuffer, dwBufferLength);
// hInternet : void* optional
// dwOption : DWORD
// lpBuffer : void* optional
// dwBufferLength : DWORD
// 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);
    boolean WinHttpSetOption(
        Pointer hInternet,   // void* optional
        int dwOption,   // DWORD
        Pointer lpBuffer,   // void* optional
        int dwBufferLength   // DWORD
    );
}

@[Link("winhttp")]
lib LibWINHTTP
  fun WinHttpSetOption = WinHttpSetOption(
    hInternet : Void*,   # void* optional
    dwOption : UInt32,   # DWORD
    lpBuffer : Void*,   # void* optional
    dwBufferLength : UInt32   # DWORD
  ) : 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 WinHttpSetOptionNative = Int32 Function(Pointer<Void>, Uint32, Pointer<Void>, Uint32);
typedef WinHttpSetOptionDart = int Function(Pointer<Void>, int, Pointer<Void>, int);
final WinHttpSetOption = DynamicLibrary.open('WINHTTP.dll')
    .lookupFunction<WinHttpSetOptionNative, WinHttpSetOptionDart>('WinHttpSetOption');
// hInternet : void* optional -> Pointer<Void>
// dwOption : DWORD -> Uint32
// lpBuffer : void* optional -> Pointer<Void>
// dwBufferLength : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function WinHttpSetOption(
  hInternet: Pointer;   // void* optional
  dwOption: DWORD;   // DWORD
  lpBuffer: Pointer;   // void* optional
  dwBufferLength: DWORD   // DWORD
): BOOL; stdcall;
  external 'WINHTTP.dll' name 'WinHttpSetOption';

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

foreign import stdcall safe "WinHttpSetOption"
  c_WinHttpSetOption :: Ptr () -> Word32 -> Ptr () -> Word32 -> IO CInt
-- hInternet : void* optional -> Ptr ()
-- dwOption : DWORD -> Word32
-- lpBuffer : void* optional -> Ptr ()
-- dwBufferLength : DWORD -> 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 winhttpsetoption =
  foreign "WinHttpSetOption"
    ((ptr void) @-> uint32_t @-> (ptr void) @-> uint32_t @-> returning int32_t)
(* hInternet : void* optional -> (ptr void) *)
(* dwOption : DWORD -> uint32_t *)
(* lpBuffer : void* optional -> (ptr void) *)
(* dwBufferLength : DWORD -> 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 ("WinHttpSetOption" win-http-set-option :convention :stdcall) :int32
  (h-internet :pointer)   ; void* optional
  (dw-option :uint32)   ; DWORD
  (lp-buffer :pointer)   ; void* optional
  (dw-buffer-length :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $WinHttpSetOption = Win32::API::More->new('WINHTTP',
    'BOOL WinHttpSetOption(LPVOID hInternet, DWORD dwOption, LPVOID lpBuffer, DWORD dwBufferLength)');
# my $ret = $WinHttpSetOption->Call($hInternet, $dwOption, $lpBuffer, $dwBufferLength);
# hInternet : void* optional -> LPVOID
# dwOption : DWORD -> DWORD
# lpBuffer : void* optional -> LPVOID
# dwBufferLength : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。