DeleteFile2W

関数

フラグを指定してファイルを削除する。

DLLKERNEL32.dll文字セットUnicode (-W)呼出規約winapi

シグネチャ

// KERNEL32.dll  (Unicode / -W)
#include <windows.h>

BOOL DeleteFile2W(
    LPCWSTR lpFileName,
    DWORD Flags
);

パラメーター

名前	型	方向
lpFileName	LPCWSTR	in
Flags	DWORD	in

戻り値の型: BOOL

各言語での呼び出し定義

// KERNEL32.dll  (Unicode / -W)
#include <windows.h>

BOOL DeleteFile2W(
    LPCWSTR lpFileName,
    DWORD Flags
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", CharSet = CharSet.Unicode, ExactSpelling = true)]
static extern bool DeleteFile2W(
    [MarshalAs(UnmanagedType.LPWStr)] string lpFileName,   // LPCWSTR
    uint Flags   // DWORD
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function DeleteFile2W(
    <MarshalAs(UnmanagedType.LPWStr)> lpFileName As String,   ' LPCWSTR
    Flags As UInteger   ' DWORD
) As Boolean
End Function

' lpFileName : LPCWSTR
' Flags : DWORD
Declare PtrSafe Function DeleteFile2W Lib "kernel32" ( _
    ByVal lpFileName As LongPtr, _
    ByVal Flags 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

DeleteFile2W = ctypes.windll.kernel32.DeleteFile2W
DeleteFile2W.restype = wintypes.BOOL
DeleteFile2W.argtypes = [
    wintypes.LPCWSTR,  # lpFileName : LPCWSTR
    wintypes.DWORD,  # Flags : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
DeleteFile2W = Fiddle::Function.new(
  lib['DeleteFile2W'],
  [
    Fiddle::TYPE_VOIDP,  # lpFileName : LPCWSTR
    -Fiddle::TYPE_INT,  # Flags : DWORD
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "kernel32")]
extern "system" {
    fn DeleteFile2W(
        lpFileName: *const u16,  // LPCWSTR
        Flags: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", CharSet = CharSet.Unicode)]
public static extern bool DeleteFile2W([MarshalAs(UnmanagedType.LPWStr)] string lpFileName, uint Flags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_DeleteFile2W' -Namespace Win32 -PassThru
# $api::DeleteFile2W(lpFileName, Flags)

#uselib "KERNEL32.dll"
#func global DeleteFile2W "DeleteFile2W" wptr, wptr
; DeleteFile2W lpFileName, Flags   ; 戻り値は stat
; lpFileName : LPCWSTR -> "wptr"
; Flags : 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 "KERNEL32.dll"
#cfunc global DeleteFile2W "DeleteFile2W" wstr, int
; res = DeleteFile2W(lpFileName, Flags)
; lpFileName : LPCWSTR -> "wstr"
; Flags : DWORD -> "int"

; BOOL DeleteFile2W(LPCWSTR lpFileName, DWORD Flags)
#uselib "KERNEL32.dll"
#cfunc global DeleteFile2W "DeleteFile2W" wstr, int
; res = DeleteFile2W(lpFileName, Flags)
; lpFileName : LPCWSTR -> "wstr"
; Flags : DWORD -> "int"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procDeleteFile2W = kernel32.NewProc("DeleteFile2W")
)

// lpFileName (LPCWSTR), Flags (DWORD)
r1, _, err := procDeleteFile2W.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpFileName))),
	uintptr(Flags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function DeleteFile2W(
  lpFileName: PWideChar;   // LPCWSTR
  Flags: DWORD   // DWORD
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'DeleteFile2W';

result := DllCall("KERNEL32\DeleteFile2W"
    , "WStr", lpFileName   ; LPCWSTR
    , "UInt", Flags   ; DWORD
    , "Int")   ; return: BOOL

●DeleteFile2W(lpFileName, Flags) = DLL("KERNEL32.dll", "bool DeleteFile2W(char*, dword)")
# 呼び出し: DeleteFile2W(lpFileName, Flags)
# lpFileName : LPCWSTR -> "char*"
# Flags : 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。