ホーム › System.Com.Urlmon › URLDownloadToCacheFileA

URLDownloadToCacheFileA

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(ANSI版)。

DLLurlmon.dll文字セットANSI (-A)呼出規約winapi

シグネチャ

// urlmon.dll  (ANSI / -A)
#include <windows.h>

HRESULT URLDownloadToCacheFileA(
    IUnknown* param0,   // optional
    LPCSTR param1,
    LPSTR param2,
    DWORD cchFileName,
    DWORD param4,
    IBindStatusCallback* param5   // optional
);

パラメーター

名前	型	方向
param0	IUnknown*	inoptional
param1	LPCSTR	in
param2	LPSTR	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  (ANSI / -A)
#include <windows.h>

HRESULT URLDownloadToCacheFileA(
    IUnknown* param0,   // optional
    LPCSTR param1,
    LPSTR param2,
    DWORD cchFileName,
    DWORD param4,
    IBindStatusCallback* param5   // optional
);

[DllImport("urlmon.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern int URLDownloadToCacheFileA(
    IntPtr param0,   // IUnknown* optional
    [MarshalAs(UnmanagedType.LPStr)] string param1,   // LPCSTR
    [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder param2,   // LPSTR out
    uint cchFileName,   // DWORD
    uint param4,   // DWORD
    IntPtr param5   // IBindStatusCallback* optional
);

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

' param0 : IUnknown* optional
' param1 : LPCSTR
' param2 : LPSTR out
' cchFileName : DWORD
' param4 : DWORD
' param5 : IBindStatusCallback* optional
Declare PtrSafe Function URLDownloadToCacheFileA Lib "urlmon" ( _
    ByVal param0 As LongPtr, _
    ByVal param1 As String, _
    ByVal param2 As String, _
    ByVal cchFileName As Long, _
    ByVal param4 As Long, _
    ByVal param5 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

URLDownloadToCacheFileA = ctypes.windll.urlmon.URLDownloadToCacheFileA
URLDownloadToCacheFileA.restype = ctypes.c_int
URLDownloadToCacheFileA.argtypes = [
    ctypes.c_void_p,  # param0 : IUnknown* optional
    wintypes.LPCSTR,  # param1 : LPCSTR
    wintypes.LPSTR,  # param2 : LPSTR 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')
URLDownloadToCacheFileA = Fiddle::Function.new(
  lib['URLDownloadToCacheFileA'],
  [
    Fiddle::TYPE_VOIDP,  # param0 : IUnknown* optional
    Fiddle::TYPE_VOIDP,  # param1 : LPCSTR
    Fiddle::TYPE_VOIDP,  # param2 : LPSTR out
    -Fiddle::TYPE_INT,  # cchFileName : DWORD
    -Fiddle::TYPE_INT,  # param4 : DWORD
    Fiddle::TYPE_VOIDP,  # param5 : IBindStatusCallback* optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "urlmon")]
extern "system" {
    fn URLDownloadToCacheFileA(
        param0: *mut core::ffi::c_void,  // IUnknown* optional
        param1: *const u8,  // LPCSTR
        param2: *mut u8,  // LPSTR 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.Ansi)]
public static extern int URLDownloadToCacheFileA(IntPtr param0, [MarshalAs(UnmanagedType.LPStr)] string param1, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder param2, uint cchFileName, uint param4, IntPtr param5);
"@
$api = Add-Type -MemberDefinition $sig -Name 'urlmon_URLDownloadToCacheFileA' -Namespace Win32 -PassThru
# $api::URLDownloadToCacheFileA(param0, param1, param2, cchFileName, param4, param5)

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

出力引数:

#uselib "urlmon.dll"
#cfunc global URLDownloadToCacheFileA "URLDownloadToCacheFileA" sptr, str, var, int, int, sptr
; res = URLDownloadToCacheFileA(param0, param1, param2, cchFileName, param4, param5)
; param0 : IUnknown* optional -> "sptr"
; param1 : LPCSTR -> "str"
; param2 : LPSTR 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 URLDownloadToCacheFileA "URLDownloadToCacheFileA" sptr, str, sptr, int, int, sptr
; res = URLDownloadToCacheFileA(param0, param1, varptr(param2), cchFileName, param4, param5)
; param0 : IUnknown* optional -> "sptr"
; param1 : LPCSTR -> "str"
; param2 : LPSTR 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 URLDownloadToCacheFileA(IUnknown* param0, LPCSTR param1, LPSTR param2, DWORD cchFileName, DWORD param4, IBindStatusCallback* param5)
#uselib "urlmon.dll"
#cfunc global URLDownloadToCacheFileA "URLDownloadToCacheFileA" intptr, str, var, int, int, intptr
; res = URLDownloadToCacheFileA(param0, param1, param2, cchFileName, param4, param5)
; param0 : IUnknown* optional -> "intptr"
; param1 : LPCSTR -> "str"
; param2 : LPSTR 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 URLDownloadToCacheFileA(IUnknown* param0, LPCSTR param1, LPSTR param2, DWORD cchFileName, DWORD param4, IBindStatusCallback* param5)
#uselib "urlmon.dll"
#cfunc global URLDownloadToCacheFileA "URLDownloadToCacheFileA" intptr, str, intptr, int, int, intptr
; res = URLDownloadToCacheFileA(param0, param1, varptr(param2), cchFileName, param4, param5)
; param0 : IUnknown* optional -> "intptr"
; param1 : LPCSTR -> "str"
; param2 : LPSTR 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")
	procURLDownloadToCacheFileA = urlmon.NewProc("URLDownloadToCacheFileA")
)

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

function URLDownloadToCacheFileA(
  param0: Pointer;   // IUnknown* optional
  param1: PAnsiChar;   // LPCSTR
  param2: PAnsiChar;   // LPSTR out
  cchFileName: DWORD;   // DWORD
  param4: DWORD;   // DWORD
  param5: Pointer   // IBindStatusCallback* optional
): Integer; stdcall;
  external 'urlmon.dll' name 'URLDownloadToCacheFileA';

result := DllCall("urlmon\URLDownloadToCacheFileA"
    , "Ptr", param0   ; IUnknown* optional
    , "AStr", param1   ; LPCSTR
    , "Ptr", param2   ; LPSTR out
    , "UInt", cchFileName   ; DWORD
    , "UInt", param4   ; DWORD
    , "Ptr", param5   ; IBindStatusCallback* optional
    , "Int")   ; return: HRESULT

●URLDownloadToCacheFileA(param0, param1, param2, cchFileName, param4, param5) = DLL("urlmon.dll", "int URLDownloadToCacheFileA(void*, char*, char*, dword, dword, void*)")
# 呼び出し: URLDownloadToCacheFileA(param0, param1, param2, cchFileName, param4, param5)
# param0 : IUnknown* optional -> "void*"
# param1 : LPCSTR -> "char*"
# param2 : LPSTR 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)。