CreateUrlCacheEntryW

// WININET.dll  (Unicode / -W)
#include <windows.h>

BOOL CreateUrlCacheEntryW(
    LPCWSTR lpszUrlName,
    DWORD dwExpectedFileSize,
    LPCWSTR lpszFileExtension,   // optional
    LPWSTR lpszFileName,
    DWORD dwReserved
);

<DllImport("WININET.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CreateUrlCacheEntryW(
    <MarshalAs(UnmanagedType.LPWStr)> lpszUrlName As String,   ' LPCWSTR
    dwExpectedFileSize As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPWStr)> lpszFileExtension As String,   ' LPCWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> lpszFileName As System.Text.StringBuilder,   ' LPWSTR in/out
    dwReserved As UInteger   ' DWORD
) As Boolean
End Function

' lpszUrlName : LPCWSTR
' dwExpectedFileSize : DWORD
' lpszFileExtension : LPCWSTR optional
' lpszFileName : LPWSTR in/out
' dwReserved : DWORD
Declare PtrSafe Function CreateUrlCacheEntryW Lib "wininet" ( _
    ByVal lpszUrlName As LongPtr, _
    ByVal dwExpectedFileSize As Long, _
    ByVal lpszFileExtension As LongPtr, _
    ByVal lpszFileName As LongPtr, _
    ByVal dwReserved As Long) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CreateUrlCacheEntryW = ctypes.windll.wininet.CreateUrlCacheEntryW
CreateUrlCacheEntryW.restype = wintypes.BOOL
CreateUrlCacheEntryW.argtypes = [
    wintypes.LPCWSTR,  # lpszUrlName : LPCWSTR
    wintypes.DWORD,  # dwExpectedFileSize : DWORD
    wintypes.LPCWSTR,  # lpszFileExtension : LPCWSTR optional
    wintypes.LPWSTR,  # lpszFileName : LPWSTR in/out
    wintypes.DWORD,  # dwReserved : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WININET.dll')
CreateUrlCacheEntryW = Fiddle::Function.new(
  lib['CreateUrlCacheEntryW'],
  [
    Fiddle::TYPE_VOIDP,  # lpszUrlName : LPCWSTR
    -Fiddle::TYPE_INT,  # dwExpectedFileSize : DWORD
    Fiddle::TYPE_VOIDP,  # lpszFileExtension : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # lpszFileName : LPWSTR in/out
    -Fiddle::TYPE_INT,  # dwReserved : DWORD
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "wininet")]
extern "system" {
    fn CreateUrlCacheEntryW(
        lpszUrlName: *const u16,  // LPCWSTR
        dwExpectedFileSize: u32,  // DWORD
        lpszFileExtension: *const u16,  // LPCWSTR optional
        lpszFileName: *mut u16,  // LPWSTR in/out
        dwReserved: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("WININET.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern bool CreateUrlCacheEntryW([MarshalAs(UnmanagedType.LPWStr)] string lpszUrlName, uint dwExpectedFileSize, [MarshalAs(UnmanagedType.LPWStr)] string lpszFileExtension, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder lpszFileName, uint dwReserved);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WININET_CreateUrlCacheEntryW' -Namespace Win32 -PassThru
# $api::CreateUrlCacheEntryW(lpszUrlName, dwExpectedFileSize, lpszFileExtension, lpszFileName, dwReserved)

#uselib "WININET.dll"
#func global CreateUrlCacheEntryW "CreateUrlCacheEntryW" wptr, wptr, wptr, wptr, wptr
; CreateUrlCacheEntryW lpszUrlName, dwExpectedFileSize, lpszFileExtension, varptr(lpszFileName), dwReserved   ; 戻り値は stat
; lpszUrlName : LPCWSTR -> "wptr"
; dwExpectedFileSize : DWORD -> "wptr"
; lpszFileExtension : LPCWSTR optional -> "wptr"
; lpszFileName : LPWSTR in/out -> "wptr"
; dwReserved : DWORD -> "wptr"
; ※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 CreateUrlCacheEntryW "CreateUrlCacheEntryW" wstr, int, wstr, var, int
; res = CreateUrlCacheEntryW(lpszUrlName, dwExpectedFileSize, lpszFileExtension, lpszFileName, dwReserved)
; lpszUrlName : LPCWSTR -> "wstr"
; dwExpectedFileSize : DWORD -> "int"
; lpszFileExtension : LPCWSTR optional -> "wstr"
; lpszFileName : LPWSTR in/out -> "var"
; dwReserved : DWORD -> "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 CreateUrlCacheEntryW(LPCWSTR lpszUrlName, DWORD dwExpectedFileSize, LPCWSTR lpszFileExtension, LPWSTR lpszFileName, DWORD dwReserved)
#uselib "WININET.dll"
#cfunc global CreateUrlCacheEntryW "CreateUrlCacheEntryW" wstr, int, wstr, var, int
; res = CreateUrlCacheEntryW(lpszUrlName, dwExpectedFileSize, lpszFileExtension, lpszFileName, dwReserved)
; lpszUrlName : LPCWSTR -> "wstr"
; dwExpectedFileSize : DWORD -> "int"
; lpszFileExtension : LPCWSTR optional -> "wstr"
; lpszFileName : LPWSTR in/out -> "var"
; dwReserved : DWORD -> "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")
	procCreateUrlCacheEntryW = wininet.NewProc("CreateUrlCacheEntryW")
)

// lpszUrlName (LPCWSTR), dwExpectedFileSize (DWORD), lpszFileExtension (LPCWSTR optional), lpszFileName (LPWSTR in/out), dwReserved (DWORD)
r1, _, err := procCreateUrlCacheEntryW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpszUrlName))),
	uintptr(dwExpectedFileSize),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpszFileExtension))),
	uintptr(lpszFileName),
	uintptr(dwReserved),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CreateUrlCacheEntryW(
  lpszUrlName: PWideChar;   // LPCWSTR
  dwExpectedFileSize: DWORD;   // DWORD
  lpszFileExtension: PWideChar;   // LPCWSTR optional
  lpszFileName: PWideChar;   // LPWSTR in/out
  dwReserved: DWORD   // DWORD
): BOOL; stdcall;
  external 'WININET.dll' name 'CreateUrlCacheEntryW';

result := DllCall("WININET\CreateUrlCacheEntryW"
    , "WStr", lpszUrlName   ; LPCWSTR
    , "UInt", dwExpectedFileSize   ; DWORD
    , "WStr", lpszFileExtension   ; LPCWSTR optional
    , "Ptr", lpszFileName   ; LPWSTR in/out
    , "UInt", dwReserved   ; DWORD
    , "Int")   ; return: BOOL

●CreateUrlCacheEntryW(lpszUrlName, dwExpectedFileSize, lpszFileExtension, lpszFileName, dwReserved) = DLL("WININET.dll", "bool CreateUrlCacheEntryW(char*, dword, char*, char*, dword)")
# 呼び出し: CreateUrlCacheEntryW(lpszUrlName, dwExpectedFileSize, lpszFileExtension, lpszFileName, dwReserved)
# lpszUrlName : LPCWSTR -> "char*"
# dwExpectedFileSize : DWORD -> "dword"
# lpszFileExtension : LPCWSTR optional -> "char*"
# lpszFileName : LPWSTR in/out -> "char*"
# dwReserved : 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。