HttpFindUrlGroupId

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

DWORD HttpFindUrlGroupId(
    LPCWSTR FullyQualifiedUrl,
    HANDLE RequestQueueHandle,
    ULONGLONG* UrlGroupId
);

<DllImport("HTTPAPI.dll", ExactSpelling:=True)>
Public Shared Function HttpFindUrlGroupId(
    <MarshalAs(UnmanagedType.LPWStr)> FullyQualifiedUrl As String,   ' LPCWSTR
    RequestQueueHandle As IntPtr,   ' HANDLE
    <Out> ByRef UrlGroupId As ULong   ' ULONGLONG* out
) As UInteger
End Function

' FullyQualifiedUrl : LPCWSTR
' RequestQueueHandle : HANDLE
' UrlGroupId : ULONGLONG* out
Declare PtrSafe Function HttpFindUrlGroupId Lib "httpapi" ( _
    ByVal FullyQualifiedUrl As LongPtr, _
    ByVal RequestQueueHandle As LongPtr, _
    ByRef UrlGroupId 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

HttpFindUrlGroupId = ctypes.windll.httpapi.HttpFindUrlGroupId
HttpFindUrlGroupId.restype = wintypes.DWORD
HttpFindUrlGroupId.argtypes = [
    wintypes.LPCWSTR,  # FullyQualifiedUrl : LPCWSTR
    wintypes.HANDLE,  # RequestQueueHandle : HANDLE
    ctypes.POINTER(ctypes.c_ulonglong),  # UrlGroupId : ULONGLONG* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('HTTPAPI.dll')
HttpFindUrlGroupId = Fiddle::Function.new(
  lib['HttpFindUrlGroupId'],
  [
    Fiddle::TYPE_VOIDP,  # FullyQualifiedUrl : LPCWSTR
    Fiddle::TYPE_VOIDP,  # RequestQueueHandle : HANDLE
    Fiddle::TYPE_VOIDP,  # UrlGroupId : ULONGLONG* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "httpapi")]
extern "system" {
    fn HttpFindUrlGroupId(
        FullyQualifiedUrl: *const u16,  // LPCWSTR
        RequestQueueHandle: *mut core::ffi::c_void,  // HANDLE
        UrlGroupId: *mut u64  // ULONGLONG* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("HTTPAPI.dll")]
public static extern uint HttpFindUrlGroupId([MarshalAs(UnmanagedType.LPWStr)] string FullyQualifiedUrl, IntPtr RequestQueueHandle, out ulong UrlGroupId);
"@
$api = Add-Type -MemberDefinition $sig -Name 'HTTPAPI_HttpFindUrlGroupId' -Namespace Win32 -PassThru
# $api::HttpFindUrlGroupId(FullyQualifiedUrl, RequestQueueHandle, UrlGroupId)

#uselib "HTTPAPI.dll"
#func global HttpFindUrlGroupId "HttpFindUrlGroupId" sptr, sptr, sptr
; HttpFindUrlGroupId FullyQualifiedUrl, RequestQueueHandle, varptr(UrlGroupId)   ; 戻り値は stat
; FullyQualifiedUrl : LPCWSTR -> "sptr"
; RequestQueueHandle : HANDLE -> "sptr"
; UrlGroupId : 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 "HTTPAPI.dll"
#cfunc global HttpFindUrlGroupId "HttpFindUrlGroupId" wstr, sptr, var
; res = HttpFindUrlGroupId(FullyQualifiedUrl, RequestQueueHandle, UrlGroupId)
; FullyQualifiedUrl : LPCWSTR -> "wstr"
; RequestQueueHandle : HANDLE -> "sptr"
; UrlGroupId : 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 HttpFindUrlGroupId(LPCWSTR FullyQualifiedUrl, HANDLE RequestQueueHandle, ULONGLONG* UrlGroupId)
#uselib "HTTPAPI.dll"
#cfunc global HttpFindUrlGroupId "HttpFindUrlGroupId" wstr, intptr, var
; res = HttpFindUrlGroupId(FullyQualifiedUrl, RequestQueueHandle, UrlGroupId)
; FullyQualifiedUrl : LPCWSTR -> "wstr"
; RequestQueueHandle : HANDLE -> "intptr"
; UrlGroupId : 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 (
	httpapi = windows.NewLazySystemDLL("HTTPAPI.dll")
	procHttpFindUrlGroupId = httpapi.NewProc("HttpFindUrlGroupId")
)

// FullyQualifiedUrl (LPCWSTR), RequestQueueHandle (HANDLE), UrlGroupId (ULONGLONG* out)
r1, _, err := procHttpFindUrlGroupId.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(FullyQualifiedUrl))),
	uintptr(RequestQueueHandle),
	uintptr(UrlGroupId),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function HttpFindUrlGroupId(
  FullyQualifiedUrl: PWideChar;   // LPCWSTR
  RequestQueueHandle: THandle;   // HANDLE
  UrlGroupId: Pointer   // ULONGLONG* out
): DWORD; stdcall;
  external 'HTTPAPI.dll' name 'HttpFindUrlGroupId';

result := DllCall("HTTPAPI\HttpFindUrlGroupId"
    , "WStr", FullyQualifiedUrl   ; LPCWSTR
    , "Ptr", RequestQueueHandle   ; HANDLE
    , "Ptr", UrlGroupId   ; ULONGLONG* out
    , "UInt")   ; return: DWORD

●HttpFindUrlGroupId(FullyQualifiedUrl, RequestQueueHandle, UrlGroupId) = DLL("HTTPAPI.dll", "dword HttpFindUrlGroupId(char*, void*, void*)")
# 呼び出し: HttpFindUrlGroupId(FullyQualifiedUrl, RequestQueueHandle, UrlGroupId)
# FullyQualifiedUrl : LPCWSTR -> "char*"
# RequestQueueHandle : HANDLE -> "void*"
# UrlGroupId : 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)。