DetectAutoProxyUrl

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

BOOL DetectAutoProxyUrl(
    LPSTR pszAutoProxyUrl,
    DWORD cchAutoProxyUrl,
    PROXY_AUTO_DETECT_TYPE dwDetectFlags
);

<DllImport("WININET.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function DetectAutoProxyUrl(
    <MarshalAs(UnmanagedType.LPStr)> pszAutoProxyUrl As System.Text.StringBuilder,   ' LPSTR out
    cchAutoProxyUrl As UInteger,   ' DWORD
    dwDetectFlags As UInteger   ' PROXY_AUTO_DETECT_TYPE
) As Boolean
End Function

' pszAutoProxyUrl : LPSTR out
' cchAutoProxyUrl : DWORD
' dwDetectFlags : PROXY_AUTO_DETECT_TYPE
Declare PtrSafe Function DetectAutoProxyUrl Lib "wininet" ( _
    ByVal pszAutoProxyUrl As String, _
    ByVal cchAutoProxyUrl As Long, _
    ByVal dwDetectFlags 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

DetectAutoProxyUrl = ctypes.windll.wininet.DetectAutoProxyUrl
DetectAutoProxyUrl.restype = wintypes.BOOL
DetectAutoProxyUrl.argtypes = [
    wintypes.LPSTR,  # pszAutoProxyUrl : LPSTR out
    wintypes.DWORD,  # cchAutoProxyUrl : DWORD
    wintypes.DWORD,  # dwDetectFlags : PROXY_AUTO_DETECT_TYPE
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WININET.dll')
DetectAutoProxyUrl = Fiddle::Function.new(
  lib['DetectAutoProxyUrl'],
  [
    Fiddle::TYPE_VOIDP,  # pszAutoProxyUrl : LPSTR out
    -Fiddle::TYPE_INT,  # cchAutoProxyUrl : DWORD
    -Fiddle::TYPE_INT,  # dwDetectFlags : PROXY_AUTO_DETECT_TYPE
  ],
  Fiddle::TYPE_INT)

#[link(name = "wininet")]
extern "system" {
    fn DetectAutoProxyUrl(
        pszAutoProxyUrl: *mut u8,  // LPSTR out
        cchAutoProxyUrl: u32,  // DWORD
        dwDetectFlags: u32  // PROXY_AUTO_DETECT_TYPE
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("WININET.dll", SetLastError = true)]
public static extern bool DetectAutoProxyUrl([MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder pszAutoProxyUrl, uint cchAutoProxyUrl, uint dwDetectFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WININET_DetectAutoProxyUrl' -Namespace Win32 -PassThru
# $api::DetectAutoProxyUrl(pszAutoProxyUrl, cchAutoProxyUrl, dwDetectFlags)

#uselib "WININET.dll"
#func global DetectAutoProxyUrl "DetectAutoProxyUrl" sptr, sptr, sptr
; DetectAutoProxyUrl varptr(pszAutoProxyUrl), cchAutoProxyUrl, dwDetectFlags   ; 戻り値は stat
; pszAutoProxyUrl : LPSTR out -> "sptr"
; cchAutoProxyUrl : DWORD -> "sptr"
; dwDetectFlags : PROXY_AUTO_DETECT_TYPE -> "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 "WININET.dll"
#cfunc global DetectAutoProxyUrl "DetectAutoProxyUrl" var, int, int
; res = DetectAutoProxyUrl(pszAutoProxyUrl, cchAutoProxyUrl, dwDetectFlags)
; pszAutoProxyUrl : LPSTR out -> "var"
; cchAutoProxyUrl : DWORD -> "int"
; dwDetectFlags : PROXY_AUTO_DETECT_TYPE -> "int"
; ※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。

; BOOL DetectAutoProxyUrl(LPSTR pszAutoProxyUrl, DWORD cchAutoProxyUrl, PROXY_AUTO_DETECT_TYPE dwDetectFlags)
#uselib "WININET.dll"
#cfunc global DetectAutoProxyUrl "DetectAutoProxyUrl" var, int, int
; res = DetectAutoProxyUrl(pszAutoProxyUrl, cchAutoProxyUrl, dwDetectFlags)
; pszAutoProxyUrl : LPSTR out -> "var"
; cchAutoProxyUrl : DWORD -> "int"
; dwDetectFlags : PROXY_AUTO_DETECT_TYPE -> "int"
; ※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 (
	wininet = windows.NewLazySystemDLL("WININET.dll")
	procDetectAutoProxyUrl = wininet.NewProc("DetectAutoProxyUrl")
)

// pszAutoProxyUrl (LPSTR out), cchAutoProxyUrl (DWORD), dwDetectFlags (PROXY_AUTO_DETECT_TYPE)
r1, _, err := procDetectAutoProxyUrl.Call(
	uintptr(pszAutoProxyUrl),
	uintptr(cchAutoProxyUrl),
	uintptr(dwDetectFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function DetectAutoProxyUrl(
  pszAutoProxyUrl: PAnsiChar;   // LPSTR out
  cchAutoProxyUrl: DWORD;   // DWORD
  dwDetectFlags: DWORD   // PROXY_AUTO_DETECT_TYPE
): BOOL; stdcall;
  external 'WININET.dll' name 'DetectAutoProxyUrl';

result := DllCall("WININET\DetectAutoProxyUrl"
    , "Ptr", pszAutoProxyUrl   ; LPSTR out
    , "UInt", cchAutoProxyUrl   ; DWORD
    , "UInt", dwDetectFlags   ; PROXY_AUTO_DETECT_TYPE
    , "Int")   ; return: BOOL

●DetectAutoProxyUrl(pszAutoProxyUrl, cchAutoProxyUrl, dwDetectFlags) = DLL("WININET.dll", "bool DetectAutoProxyUrl(char*, dword, dword)")
# 呼び出し: DetectAutoProxyUrl(pszAutoProxyUrl, cchAutoProxyUrl, dwDetectFlags)
# pszAutoProxyUrl : LPSTR out -> "char*"
# cchAutoProxyUrl : DWORD -> "dword"
# dwDetectFlags : PROXY_AUTO_DETECT_TYPE -> "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)。