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NeedCurrentDirectoryForExePathA
関数実行ファイル検索でカレントディレクトリが必要かを判定する(ANSI版)。
シグネチャ
// KERNEL32.dll (ANSI / -A)
#include <windows.h>
BOOL NeedCurrentDirectoryForExePathA(
LPCSTR ExeName
);パラメーター
| 名前 | 型 | 方向 | 説明 |
|---|---|---|---|
| ExeName | LPCSTR | in | 判定対象の実行ファイル名を指すANSI文字列。 |
戻り値の型: BOOL
各言語での呼び出し定義
// KERNEL32.dll (ANSI / -A)
#include <windows.h>
BOOL NeedCurrentDirectoryForExePathA(
LPCSTR ExeName
);[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern bool NeedCurrentDirectoryForExePathA(
[MarshalAs(UnmanagedType.LPStr)] string ExeName // LPCSTR
);<DllImport("KERNEL32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function NeedCurrentDirectoryForExePathA(
<MarshalAs(UnmanagedType.LPStr)> ExeName As String ' LPCSTR
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function' ExeName : LPCSTR
Declare PtrSafe Function NeedCurrentDirectoryForExePathA Lib "kernel32" ( _
ByVal ExeName As String) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。import ctypes
from ctypes import wintypes
NeedCurrentDirectoryForExePathA = ctypes.windll.kernel32.NeedCurrentDirectoryForExePathA
NeedCurrentDirectoryForExePathA.restype = wintypes.BOOL
NeedCurrentDirectoryForExePathA.argtypes = [
wintypes.LPCSTR, # ExeName : LPCSTR
]require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('KERNEL32.dll')
NeedCurrentDirectoryForExePathA = Fiddle::Function.new(
lib['NeedCurrentDirectoryForExePathA'],
[
Fiddle::TYPE_VOIDP, # ExeName : LPCSTR
],
Fiddle::TYPE_INT)#[link(name = "kernel32")]
extern "system" {
fn NeedCurrentDirectoryForExePathA(
ExeName: *const u8 // LPCSTR
) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", CharSet = CharSet.Ansi)]
public static extern bool NeedCurrentDirectoryForExePathA([MarshalAs(UnmanagedType.LPStr)] string ExeName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_NeedCurrentDirectoryForExePathA' -Namespace Win32 -PassThru
# $api::NeedCurrentDirectoryForExePathA(ExeName)#uselib "KERNEL32.dll"
#func global NeedCurrentDirectoryForExePathA "NeedCurrentDirectoryForExePathA" sptr
; NeedCurrentDirectoryForExePathA ExeName ; 戻り値は stat
; ExeName : LPCSTR -> "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 "KERNEL32.dll"
#cfunc global NeedCurrentDirectoryForExePathA "NeedCurrentDirectoryForExePathA" str
; res = NeedCurrentDirectoryForExePathA(ExeName)
; ExeName : LPCSTR -> "str"; BOOL NeedCurrentDirectoryForExePathA(LPCSTR ExeName)
#uselib "KERNEL32.dll"
#cfunc global NeedCurrentDirectoryForExePathA "NeedCurrentDirectoryForExePathA" str
; res = NeedCurrentDirectoryForExePathA(ExeName)
; ExeName : LPCSTR -> "str"import (
"golang.org/x/sys/windows"
"unsafe"
)
var (
kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
procNeedCurrentDirectoryForExePathA = kernel32.NewProc("NeedCurrentDirectoryForExePathA")
)
// ExeName (LPCSTR)
r1, _, err := procNeedCurrentDirectoryForExePathA.Call(
uintptr(unsafe.Pointer(windows.BytePtrFromString(ExeName))),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // BOOLfunction NeedCurrentDirectoryForExePathA(
ExeName: PAnsiChar // LPCSTR
): BOOL; stdcall;
external 'KERNEL32.dll' name 'NeedCurrentDirectoryForExePathA';result := DllCall("KERNEL32\NeedCurrentDirectoryForExePathA"
, "AStr", ExeName ; LPCSTR
, "Int") ; return: BOOL●NeedCurrentDirectoryForExePathA(ExeName) = DLL("KERNEL32.dll", "bool NeedCurrentDirectoryForExePathA(char*)")
# 呼び出し: NeedCurrentDirectoryForExePathA(ExeName)
# ExeName : LPCSTR -> "char*"
# 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)。const std = @import("std");
extern "kernel32" fn NeedCurrentDirectoryForExePathA(
ExeName: [*c]const u8 // LPCSTR
) callconv(std.os.windows.WINAPI) i32;proc NeedCurrentDirectoryForExePathA(
ExeName: cstring # LPCSTR
): int32 {.importc: "NeedCurrentDirectoryForExePathA", stdcall, dynlib: "KERNEL32.dll".}pragma(lib, "kernel32");
extern(Windows)
int NeedCurrentDirectoryForExePathA(
const(char)* ExeName // LPCSTR
);ccall((:NeedCurrentDirectoryForExePathA, "KERNEL32.dll"), stdcall, Int32,
(Cstring,),
ExeName)
# ExeName : LPCSTR -> Cstring
# stdcall は 32bit のみ意味を持つ(x64 では無視)。local ffi = require("ffi")
ffi.cdef[[
int32_t NeedCurrentDirectoryForExePathA(
const char* ExeName);
]]
local kernel32 = ffi.load("kernel32")
-- kernel32.NeedCurrentDirectoryForExePathA(ExeName)
-- ExeName : LPCSTR
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。const koffi = require('koffi');
const lib = koffi.load('KERNEL32.dll');
const NeedCurrentDirectoryForExePathA = lib.func('__stdcall', 'NeedCurrentDirectoryForExePathA', 'int32_t', ['str']);
// NeedCurrentDirectoryForExePathA(ExeName)
// ExeName : LPCSTR -> 'str'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。const lib = Deno.dlopen("KERNEL32.dll", {
NeedCurrentDirectoryForExePathA: { parameters: ["buffer"], result: "i32" },
});
// lib.symbols.NeedCurrentDirectoryForExePathA(ExeName)
// ExeName : LPCSTR -> "buffer"
// 文字列は "buffer"。ANSI(-A) は new TextEncoder() で UTF-8/ANSI バイト列(末尾に \x00)を渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。<?php
$ffi = FFI::cdef(<<<C
int32_t NeedCurrentDirectoryForExePathA(
const char* ExeName);
C, "KERNEL32.dll");
// $ffi->NeedCurrentDirectoryForExePathA(ExeName);
// ExeName : LPCSTR
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;
public interface Kernel32 extends StdCallLibrary {
Kernel32 INSTANCE = Native.load("kernel32", Kernel32.class, W32APIOptions.ASCII_OPTIONS);
boolean NeedCurrentDirectoryForExePathA(
String ExeName // LPCSTR
);
}@[Link("kernel32")]
lib LibKERNEL32
fun NeedCurrentDirectoryForExePathA = NeedCurrentDirectoryForExePathA(
ExeName : UInt8* # LPCSTR
) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。import 'dart:ffi';
import 'package:ffi/ffi.dart';
typedef NeedCurrentDirectoryForExePathANative = Int32 Function(Pointer<Utf8>);
typedef NeedCurrentDirectoryForExePathADart = int Function(Pointer<Utf8>);
final NeedCurrentDirectoryForExePathA = DynamicLibrary.open('KERNEL32.dll')
.lookupFunction<NeedCurrentDirectoryForExePathANative, NeedCurrentDirectoryForExePathADart>('NeedCurrentDirectoryForExePathA');
// ExeName : LPCSTR -> Pointer<Utf8>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。{$mode objfpc}{$H+}
function NeedCurrentDirectoryForExePathA(
ExeName: PAnsiChar // LPCSTR
): BOOL; stdcall;
external 'KERNEL32.dll' name 'NeedCurrentDirectoryForExePathA';import Foreign
import Foreign.C.Types
import Foreign.C.String
foreign import stdcall safe "NeedCurrentDirectoryForExePathA"
c_NeedCurrentDirectoryForExePathA :: CString -> IO CInt
-- ExeName : LPCSTR -> CString
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。open Ctypes
open Foreign
let needcurrentdirectoryforexepatha =
foreign "NeedCurrentDirectoryForExePathA"
(string @-> returning int32_t)
(* ExeName : LPCSTR -> string *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)(cffi:define-foreign-library kernel32 (t "KERNEL32.dll"))
(cffi:use-foreign-library kernel32)
(cffi:defcfun ("NeedCurrentDirectoryForExePathA" need-current-directory-for-exe-path-a :convention :stdcall) :int32
(exe-name :string)) ; LPCSTR
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。use Win32::API;
my $NeedCurrentDirectoryForExePathA = Win32::API::More->new('KERNEL32',
'BOOL NeedCurrentDirectoryForExePathA(LPCSTR ExeName)');
# my $ret = $NeedCurrentDirectoryForExePathA->Call($ExeName);
# ExeName : LPCSTR -> LPCSTR
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。関連項目
文字セット違い
- f NeedCurrentDirectoryForExePathW (Unicode版) — 実行ファイル検索でカレントディレクトリが必要かを判定する(Unicode版)。