HttpAddUrl

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

DWORD HttpAddUrl(
    HANDLE RequestQueueHandle,
    LPCWSTR FullyQualifiedUrl,
    void* Reserved   // optional
);

<DllImport("HTTPAPI.dll", ExactSpelling:=True)>
Public Shared Function HttpAddUrl(
    RequestQueueHandle As IntPtr,   ' HANDLE
    <MarshalAs(UnmanagedType.LPWStr)> FullyQualifiedUrl As String,   ' LPCWSTR
    Reserved As IntPtr   ' void* optional
) As UInteger
End Function

' RequestQueueHandle : HANDLE
' FullyQualifiedUrl : LPCWSTR
' Reserved : void* optional
Declare PtrSafe Function HttpAddUrl Lib "httpapi" ( _
    ByVal RequestQueueHandle As LongPtr, _
    ByVal FullyQualifiedUrl As LongPtr, _
    ByVal Reserved As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

HttpAddUrl = ctypes.windll.httpapi.HttpAddUrl
HttpAddUrl.restype = wintypes.DWORD
HttpAddUrl.argtypes = [
    wintypes.HANDLE,  # RequestQueueHandle : HANDLE
    wintypes.LPCWSTR,  # FullyQualifiedUrl : LPCWSTR
    ctypes.POINTER(None),  # Reserved : void* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('HTTPAPI.dll')
HttpAddUrl = Fiddle::Function.new(
  lib['HttpAddUrl'],
  [
    Fiddle::TYPE_VOIDP,  # RequestQueueHandle : HANDLE
    Fiddle::TYPE_VOIDP,  # FullyQualifiedUrl : LPCWSTR
    Fiddle::TYPE_VOIDP,  # Reserved : void* optional
  ],
  -Fiddle::TYPE_INT)

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

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

#uselib "HTTPAPI.dll"
#func global HttpAddUrl "HttpAddUrl" sptr, sptr, sptr
; HttpAddUrl RequestQueueHandle, FullyQualifiedUrl, Reserved   ; 戻り値は stat
; RequestQueueHandle : HANDLE -> "sptr"
; FullyQualifiedUrl : LPCWSTR -> "sptr"
; Reserved : void* optional -> "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 HttpAddUrl "HttpAddUrl" sptr, wstr, sptr
; res = HttpAddUrl(RequestQueueHandle, FullyQualifiedUrl, Reserved)
; RequestQueueHandle : HANDLE -> "sptr"
; FullyQualifiedUrl : LPCWSTR -> "wstr"
; Reserved : void* optional -> "sptr"

; DWORD HttpAddUrl(HANDLE RequestQueueHandle, LPCWSTR FullyQualifiedUrl, void* Reserved)
#uselib "HTTPAPI.dll"
#cfunc global HttpAddUrl "HttpAddUrl" intptr, wstr, intptr
; res = HttpAddUrl(RequestQueueHandle, FullyQualifiedUrl, Reserved)
; RequestQueueHandle : HANDLE -> "intptr"
; FullyQualifiedUrl : LPCWSTR -> "wstr"
; Reserved : void* optional -> "intptr"

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

var (
	httpapi = windows.NewLazySystemDLL("HTTPAPI.dll")
	procHttpAddUrl = httpapi.NewProc("HttpAddUrl")
)

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

function HttpAddUrl(
  RequestQueueHandle: THandle;   // HANDLE
  FullyQualifiedUrl: PWideChar;   // LPCWSTR
  Reserved: Pointer   // void* optional
): DWORD; stdcall;
  external 'HTTPAPI.dll' name 'HttpAddUrl';

result := DllCall("HTTPAPI\HttpAddUrl"
    , "Ptr", RequestQueueHandle   ; HANDLE
    , "WStr", FullyQualifiedUrl   ; LPCWSTR
    , "Ptr", Reserved   ; void* optional
    , "UInt")   ; return: DWORD

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