UrlCacheGetGlobalLimit

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

DWORD UrlCacheGetGlobalLimit(
    URL_CACHE_LIMIT_TYPE limitType,
    ULONGLONG* pullLimit
);

<DllImport("WININET.dll", ExactSpelling:=True)>
Public Shared Function UrlCacheGetGlobalLimit(
    limitType As Integer,   ' URL_CACHE_LIMIT_TYPE
    <Out> ByRef pullLimit As ULong   ' ULONGLONG* out
) As UInteger
End Function

' limitType : URL_CACHE_LIMIT_TYPE
' pullLimit : ULONGLONG* out
Declare PtrSafe Function UrlCacheGetGlobalLimit Lib "wininet" ( _
    ByVal limitType As Long, _
    ByRef pullLimit As LongLong) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

UrlCacheGetGlobalLimit = ctypes.windll.wininet.UrlCacheGetGlobalLimit
UrlCacheGetGlobalLimit.restype = wintypes.DWORD
UrlCacheGetGlobalLimit.argtypes = [
    ctypes.c_int,  # limitType : URL_CACHE_LIMIT_TYPE
    ctypes.POINTER(ctypes.c_ulonglong),  # pullLimit : ULONGLONG* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WININET.dll')
UrlCacheGetGlobalLimit = Fiddle::Function.new(
  lib['UrlCacheGetGlobalLimit'],
  [
    Fiddle::TYPE_INT,  # limitType : URL_CACHE_LIMIT_TYPE
    Fiddle::TYPE_VOIDP,  # pullLimit : ULONGLONG* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "wininet")]
extern "system" {
    fn UrlCacheGetGlobalLimit(
        limitType: i32,  // URL_CACHE_LIMIT_TYPE
        pullLimit: *mut u64  // ULONGLONG* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WININET.dll")]
public static extern uint UrlCacheGetGlobalLimit(int limitType, out ulong pullLimit);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WININET_UrlCacheGetGlobalLimit' -Namespace Win32 -PassThru
# $api::UrlCacheGetGlobalLimit(limitType, pullLimit)

#uselib "WININET.dll"
#func global UrlCacheGetGlobalLimit "UrlCacheGetGlobalLimit" sptr, sptr
; UrlCacheGetGlobalLimit limitType, varptr(pullLimit)   ; 戻り値は stat
; limitType : URL_CACHE_LIMIT_TYPE -> "sptr"
; pullLimit : ULONGLONG* 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。

#uselib "WININET.dll"
#cfunc global UrlCacheGetGlobalLimit "UrlCacheGetGlobalLimit" int, var
; res = UrlCacheGetGlobalLimit(limitType, pullLimit)
; limitType : URL_CACHE_LIMIT_TYPE -> "int"
; pullLimit : ULONGLONG* out -> "var"
; ※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。

; DWORD UrlCacheGetGlobalLimit(URL_CACHE_LIMIT_TYPE limitType, ULONGLONG* pullLimit)
#uselib "WININET.dll"
#cfunc global UrlCacheGetGlobalLimit "UrlCacheGetGlobalLimit" int, var
; res = UrlCacheGetGlobalLimit(limitType, pullLimit)
; limitType : URL_CACHE_LIMIT_TYPE -> "int"
; pullLimit : ULONGLONG* out -> "var"
; ※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")
	procUrlCacheGetGlobalLimit = wininet.NewProc("UrlCacheGetGlobalLimit")
)

// limitType (URL_CACHE_LIMIT_TYPE), pullLimit (ULONGLONG* out)
r1, _, err := procUrlCacheGetGlobalLimit.Call(
	uintptr(limitType),
	uintptr(pullLimit),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function UrlCacheGetGlobalLimit(
  limitType: Integer;   // URL_CACHE_LIMIT_TYPE
  pullLimit: Pointer   // ULONGLONG* out
): DWORD; stdcall;
  external 'WININET.dll' name 'UrlCacheGetGlobalLimit';

result := DllCall("WININET\UrlCacheGetGlobalLimit"
    , "Int", limitType   ; URL_CACHE_LIMIT_TYPE
    , "Ptr", pullLimit   ; ULONGLONG* out
    , "UInt")   ; return: DWORD

●UrlCacheGetGlobalLimit(limitType, pullLimit) = DLL("WININET.dll", "dword UrlCacheGetGlobalLimit(int, void*)")
# 呼び出し: UrlCacheGetGlobalLimit(limitType, pullLimit)
# limitType : URL_CACHE_LIMIT_TYPE -> "int"
# pullLimit : ULONGLONG* 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)。