PathIsSlowW

関数

指定パス(Unicode)が低速な媒体上にあるかを判定する。

DLLSHELL32.dll文字セットUnicode (-W)呼出規約winapi対応OSWindows XP 以降

シグネチャ

// SHELL32.dll  (Unicode / -W)
#include <windows.h>

BOOL PathIsSlowW(
    LPCWSTR pszFile,
    DWORD dwAttr
);

パラメーター

名前	型	方向
pszFile	LPCWSTR	in
dwAttr	DWORD	in

戻り値の型: BOOL

各言語での呼び出し定義

// SHELL32.dll  (Unicode / -W)
#include <windows.h>

BOOL PathIsSlowW(
    LPCWSTR pszFile,
    DWORD dwAttr
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SHELL32.dll", CharSet = CharSet.Unicode, ExactSpelling = true)]
static extern bool PathIsSlowW(
    [MarshalAs(UnmanagedType.LPWStr)] string pszFile,   // LPCWSTR
    uint dwAttr   // DWORD
);

<DllImport("SHELL32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function PathIsSlowW(
    <MarshalAs(UnmanagedType.LPWStr)> pszFile As String,   ' LPCWSTR
    dwAttr As UInteger   ' DWORD
) As Boolean
End Function

' pszFile : LPCWSTR
' dwAttr : DWORD
Declare PtrSafe Function PathIsSlowW Lib "shell32" ( _
    ByVal pszFile As LongPtr, _
    ByVal dwAttr 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

PathIsSlowW = ctypes.windll.shell32.PathIsSlowW
PathIsSlowW.restype = wintypes.BOOL
PathIsSlowW.argtypes = [
    wintypes.LPCWSTR,  # pszFile : LPCWSTR
    wintypes.DWORD,  # dwAttr : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHELL32.dll')
PathIsSlowW = Fiddle::Function.new(
  lib['PathIsSlowW'],
  [
    Fiddle::TYPE_VOIDP,  # pszFile : LPCWSTR
    -Fiddle::TYPE_INT,  # dwAttr : DWORD
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "shell32")]
extern "system" {
    fn PathIsSlowW(
        pszFile: *const u16,  // LPCWSTR
        dwAttr: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SHELL32.dll", CharSet = CharSet.Unicode)]
public static extern bool PathIsSlowW([MarshalAs(UnmanagedType.LPWStr)] string pszFile, uint dwAttr);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHELL32_PathIsSlowW' -Namespace Win32 -PassThru
# $api::PathIsSlowW(pszFile, dwAttr)

#uselib "SHELL32.dll"
#func global PathIsSlowW "PathIsSlowW" wptr, wptr
; PathIsSlowW pszFile, dwAttr   ; 戻り値は stat
; pszFile : LPCWSTR -> "wptr"
; dwAttr : 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 "SHELL32.dll"
#cfunc global PathIsSlowW "PathIsSlowW" wstr, int
; res = PathIsSlowW(pszFile, dwAttr)
; pszFile : LPCWSTR -> "wstr"
; dwAttr : DWORD -> "int"

; BOOL PathIsSlowW(LPCWSTR pszFile, DWORD dwAttr)
#uselib "SHELL32.dll"
#cfunc global PathIsSlowW "PathIsSlowW" wstr, int
; res = PathIsSlowW(pszFile, dwAttr)
; pszFile : LPCWSTR -> "wstr"
; dwAttr : DWORD -> "int"

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

var (
	shell32 = windows.NewLazySystemDLL("SHELL32.dll")
	procPathIsSlowW = shell32.NewProc("PathIsSlowW")
)

// pszFile (LPCWSTR), dwAttr (DWORD)
r1, _, err := procPathIsSlowW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszFile))),
	uintptr(dwAttr),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function PathIsSlowW(
  pszFile: PWideChar;   // LPCWSTR
  dwAttr: DWORD   // DWORD
): BOOL; stdcall;
  external 'SHELL32.dll' name 'PathIsSlowW';

result := DllCall("SHELL32\PathIsSlowW"
    , "WStr", pszFile   ; LPCWSTR
    , "UInt", dwAttr   ; DWORD
    , "Int")   ; return: BOOL

●PathIsSlowW(pszFile, dwAttr) = DLL("SHELL32.dll", "bool PathIsSlowW(char*, dword)")
# 呼び出し: PathIsSlowW(pszFile, dwAttr)
# pszFile : LPCWSTR -> "char*"
# dwAttr : 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。