PathIsSlowA

関数

指定パス(ANSI)が低速な媒体上にあるかを判定する。

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

シグネチャ

// SHELL32.dll  (ANSI / -A)
#include <windows.h>

BOOL PathIsSlowA(
    LPCSTR pszFile,
    DWORD dwAttr
);

パラメーター

名前	型	方向
pszFile	LPCSTR	in
dwAttr	DWORD	in

戻り値の型: BOOL

各言語での呼び出し定義

// SHELL32.dll  (ANSI / -A)
#include <windows.h>

BOOL PathIsSlowA(
    LPCSTR pszFile,
    DWORD dwAttr
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SHELL32.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern bool PathIsSlowA(
    [MarshalAs(UnmanagedType.LPStr)] string pszFile,   // LPCSTR
    uint dwAttr   // DWORD
);

<DllImport("SHELL32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function PathIsSlowA(
    <MarshalAs(UnmanagedType.LPStr)> pszFile As String,   ' LPCSTR
    dwAttr As UInteger   ' DWORD
) As Boolean
End Function

' pszFile : LPCSTR
' dwAttr : DWORD
Declare PtrSafe Function PathIsSlowA Lib "shell32" ( _
    ByVal pszFile As String, _
    ByVal dwAttr As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

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

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHELL32.dll')
PathIsSlowA = Fiddle::Function.new(
  lib['PathIsSlowA'],
  [
    Fiddle::TYPE_VOIDP,  # pszFile : LPCSTR
    -Fiddle::TYPE_INT,  # dwAttr : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "shell32")]
extern "system" {
    fn PathIsSlowA(
        pszFile: *const u8,  // LPCSTR
        dwAttr: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SHELL32.dll", CharSet = CharSet.Ansi)]
public static extern bool PathIsSlowA([MarshalAs(UnmanagedType.LPStr)] string pszFile, uint dwAttr);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHELL32_PathIsSlowA' -Namespace Win32 -PassThru
# $api::PathIsSlowA(pszFile, dwAttr)

#uselib "SHELL32.dll"
#func global PathIsSlowA "PathIsSlowA" sptr, sptr
; PathIsSlowA pszFile, dwAttr   ; 戻り値は stat
; pszFile : LPCSTR -> "sptr"
; dwAttr : DWORD -> "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 "SHELL32.dll"
#cfunc global PathIsSlowA "PathIsSlowA" str, int
; res = PathIsSlowA(pszFile, dwAttr)
; pszFile : LPCSTR -> "str"
; dwAttr : DWORD -> "int"

; BOOL PathIsSlowA(LPCSTR pszFile, DWORD dwAttr)
#uselib "SHELL32.dll"
#cfunc global PathIsSlowA "PathIsSlowA" str, int
; res = PathIsSlowA(pszFile, dwAttr)
; pszFile : LPCSTR -> "str"
; dwAttr : DWORD -> "int"

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

var (
	shell32 = windows.NewLazySystemDLL("SHELL32.dll")
	procPathIsSlowA = shell32.NewProc("PathIsSlowA")
)

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

function PathIsSlowA(
  pszFile: PAnsiChar;   // LPCSTR
  dwAttr: DWORD   // DWORD
): BOOL; stdcall;
  external 'SHELL32.dll' name 'PathIsSlowA';

result := DllCall("SHELL32\PathIsSlowA"
    , "AStr", pszFile   ; LPCSTR
    , "UInt", dwAttr   ; DWORD
    , "Int")   ; return: BOOL

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