ホーム › System.Com.Urlmon › URLDownloadToCacheFileW

URLDownloadToCacheFileW

関数

指定URLの内容をキャッシュファイルへダウンロードしそのパスを返す(Unicode版)。

DLLurlmon.dll文字セットUnicode (-W)呼出規約winapi

シグネチャ

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

HRESULT URLDownloadToCacheFileW(
    IUnknown* param0,   // optional
    LPCWSTR param1,
    LPWSTR param2,
    DWORD cchFileName,
    DWORD param4,
    IBindStatusCallback* param5   // optional
);

パラメーター

名前	型	方向
param0	IUnknown*	inoptional
param1	LPCWSTR	in
param2	LPWSTR	out
cchFileName	DWORD	in
param4	DWORD	in
param5	IBindStatusCallback*	inoptional

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT URLDownloadToCacheFileW(
    IUnknown* param0,   // optional
    LPCWSTR param1,
    LPWSTR param2,
    DWORD cchFileName,
    DWORD param4,
    IBindStatusCallback* param5   // optional
);

[DllImport("urlmon.dll", CharSet = CharSet.Unicode, ExactSpelling = true)]
static extern int URLDownloadToCacheFileW(
    IntPtr param0,   // IUnknown* optional
    [MarshalAs(UnmanagedType.LPWStr)] string param1,   // LPCWSTR
    [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder param2,   // LPWSTR out
    uint cchFileName,   // DWORD
    uint param4,   // DWORD
    IntPtr param5   // IBindStatusCallback* optional
);

<DllImport("urlmon.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function URLDownloadToCacheFileW(
    param0 As IntPtr,   ' IUnknown* optional
    <MarshalAs(UnmanagedType.LPWStr)> param1 As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> param2 As System.Text.StringBuilder,   ' LPWSTR out
    cchFileName As UInteger,   ' DWORD
    param4 As UInteger,   ' DWORD
    param5 As IntPtr   ' IBindStatusCallback* optional
) As Integer
End Function

' param0 : IUnknown* optional
' param1 : LPCWSTR
' param2 : LPWSTR out
' cchFileName : DWORD
' param4 : DWORD
' param5 : IBindStatusCallback* optional
Declare PtrSafe Function URLDownloadToCacheFileW Lib "urlmon" ( _
    ByVal param0 As LongPtr, _
    ByVal param1 As LongPtr, _
    ByVal param2 As LongPtr, _
    ByVal cchFileName As Long, _
    ByVal param4 As Long, _
    ByVal param5 As LongPtr) 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

URLDownloadToCacheFileW = ctypes.windll.urlmon.URLDownloadToCacheFileW
URLDownloadToCacheFileW.restype = ctypes.c_int
URLDownloadToCacheFileW.argtypes = [
    ctypes.c_void_p,  # param0 : IUnknown* optional
    wintypes.LPCWSTR,  # param1 : LPCWSTR
    wintypes.LPWSTR,  # param2 : LPWSTR out
    wintypes.DWORD,  # cchFileName : DWORD
    wintypes.DWORD,  # param4 : DWORD
    ctypes.c_void_p,  # param5 : IBindStatusCallback* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('urlmon.dll')
URLDownloadToCacheFileW = Fiddle::Function.new(
  lib['URLDownloadToCacheFileW'],
  [
    Fiddle::TYPE_VOIDP,  # param0 : IUnknown* optional
    Fiddle::TYPE_VOIDP,  # param1 : LPCWSTR
    Fiddle::TYPE_VOIDP,  # param2 : LPWSTR out
    -Fiddle::TYPE_INT,  # cchFileName : DWORD
    -Fiddle::TYPE_INT,  # param4 : DWORD
    Fiddle::TYPE_VOIDP,  # param5 : IBindStatusCallback* optional
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "urlmon")]
extern "system" {
    fn URLDownloadToCacheFileW(
        param0: *mut core::ffi::c_void,  // IUnknown* optional
        param1: *const u16,  // LPCWSTR
        param2: *mut u16,  // LPWSTR out
        cchFileName: u32,  // DWORD
        param4: u32,  // DWORD
        param5: *mut core::ffi::c_void  // IBindStatusCallback* optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("urlmon.dll", CharSet = CharSet.Unicode)]
public static extern int URLDownloadToCacheFileW(IntPtr param0, [MarshalAs(UnmanagedType.LPWStr)] string param1, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder param2, uint cchFileName, uint param4, IntPtr param5);
"@
$api = Add-Type -MemberDefinition $sig -Name 'urlmon_URLDownloadToCacheFileW' -Namespace Win32 -PassThru
# $api::URLDownloadToCacheFileW(param0, param1, param2, cchFileName, param4, param5)

#uselib "urlmon.dll"
#func global URLDownloadToCacheFileW "URLDownloadToCacheFileW" wptr, wptr, wptr, wptr, wptr, wptr
; URLDownloadToCacheFileW param0, param1, varptr(param2), cchFileName, param4, param5   ; 戻り値は stat
; param0 : IUnknown* optional -> "wptr"
; param1 : LPCWSTR -> "wptr"
; param2 : LPWSTR out -> "wptr"
; cchFileName : DWORD -> "wptr"
; param4 : DWORD -> "wptr"
; param5 : IBindStatusCallback* optional -> "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。

出力引数:

#uselib "urlmon.dll"
#cfunc global URLDownloadToCacheFileW "URLDownloadToCacheFileW" sptr, wstr, var, int, int, sptr
; res = URLDownloadToCacheFileW(param0, param1, param2, cchFileName, param4, param5)
; param0 : IUnknown* optional -> "sptr"
; param1 : LPCWSTR -> "wstr"
; param2 : LPWSTR out -> "var"
; cchFileName : DWORD -> "int"
; param4 : DWORD -> "int"
; param5 : IBindStatusCallback* optional -> "sptr"
; ※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。#uselib "urlmon.dll"
#cfunc global URLDownloadToCacheFileW "URLDownloadToCacheFileW" sptr, wstr, sptr, int, int, sptr
; res = URLDownloadToCacheFileW(param0, param1, varptr(param2), cchFileName, param4, param5)
; param0 : IUnknown* optional -> "sptr"
; param1 : LPCWSTR -> "wstr"
; param2 : LPWSTR out -> "sptr"
; cchFileName : DWORD -> "int"
; param4 : DWORD -> "int"
; param5 : IBindStatusCallback* optional -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; HRESULT URLDownloadToCacheFileW(IUnknown* param0, LPCWSTR param1, LPWSTR param2, DWORD cchFileName, DWORD param4, IBindStatusCallback* param5)
#uselib "urlmon.dll"
#cfunc global URLDownloadToCacheFileW "URLDownloadToCacheFileW" intptr, wstr, var, int, int, intptr
; res = URLDownloadToCacheFileW(param0, param1, param2, cchFileName, param4, param5)
; param0 : IUnknown* optional -> "intptr"
; param1 : LPCWSTR -> "wstr"
; param2 : LPWSTR out -> "var"
; cchFileName : DWORD -> "int"
; param4 : DWORD -> "int"
; param5 : IBindStatusCallback* optional -> "intptr"
; ※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。; HRESULT URLDownloadToCacheFileW(IUnknown* param0, LPCWSTR param1, LPWSTR param2, DWORD cchFileName, DWORD param4, IBindStatusCallback* param5)
#uselib "urlmon.dll"
#cfunc global URLDownloadToCacheFileW "URLDownloadToCacheFileW" intptr, wstr, intptr, int, int, intptr
; res = URLDownloadToCacheFileW(param0, param1, varptr(param2), cchFileName, param4, param5)
; param0 : IUnknown* optional -> "intptr"
; param1 : LPCWSTR -> "wstr"
; param2 : LPWSTR out -> "intptr"
; cchFileName : DWORD -> "int"
; param4 : DWORD -> "int"
; param5 : IBindStatusCallback* optional -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

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

var (
	urlmon = windows.NewLazySystemDLL("urlmon.dll")
	procURLDownloadToCacheFileW = urlmon.NewProc("URLDownloadToCacheFileW")
)

// param0 (IUnknown* optional), param1 (LPCWSTR), param2 (LPWSTR out), cchFileName (DWORD), param4 (DWORD), param5 (IBindStatusCallback* optional)
r1, _, err := procURLDownloadToCacheFileW.Call(
	uintptr(param0),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(param1))),
	uintptr(param2),
	uintptr(cchFileName),
	uintptr(param4),
	uintptr(param5),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function URLDownloadToCacheFileW(
  param0: Pointer;   // IUnknown* optional
  param1: PWideChar;   // LPCWSTR
  param2: PWideChar;   // LPWSTR out
  cchFileName: DWORD;   // DWORD
  param4: DWORD;   // DWORD
  param5: Pointer   // IBindStatusCallback* optional
): Integer; stdcall;
  external 'urlmon.dll' name 'URLDownloadToCacheFileW';

result := DllCall("urlmon\URLDownloadToCacheFileW"
    , "Ptr", param0   ; IUnknown* optional
    , "WStr", param1   ; LPCWSTR
    , "Ptr", param2   ; LPWSTR out
    , "UInt", cchFileName   ; DWORD
    , "UInt", param4   ; DWORD
    , "Ptr", param5   ; IBindStatusCallback* optional
    , "Int")   ; return: HRESULT

●URLDownloadToCacheFileW(param0, param1, param2, cchFileName, param4, param5) = DLL("urlmon.dll", "int URLDownloadToCacheFileW(void*, char*, char*, dword, dword, void*)")
# 呼び出し: URLDownloadToCacheFileW(param0, param1, param2, cchFileName, param4, param5)
# param0 : IUnknown* optional -> "void*"
# param1 : LPCWSTR -> "char*"
# param2 : LPWSTR out -> "char*"
# cchFileName : DWORD -> "dword"
# param4 : DWORD -> "dword"
# param5 : IBindStatusCallback* 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。