CopyFileA

関数

既存ファイルを新しいファイルへコピーする(ANSI版)。

DLLKERNEL32.dll文字セットANSI (-A)呼出規約winapiSetLastErrorあり対応OSWindows XP 以降

シグネチャ

// KERNEL32.dll  (ANSI / -A)
#include <windows.h>

BOOL CopyFileA(
    LPCSTR lpExistingFileName,
    LPCSTR lpNewFileName,
    BOOL bFailIfExists
);

パラメーター

名前	型	方向
lpExistingFileName	LPCSTR	in
lpNewFileName	LPCSTR	in
bFailIfExists	BOOL	in

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 CopyFileA(
    LPCSTR lpExistingFileName,
    LPCSTR lpNewFileName,
    BOOL bFailIfExists
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", CharSet = CharSet.Ansi, SetLastError = true, ExactSpelling = true)]
static extern bool CopyFileA(
    [MarshalAs(UnmanagedType.LPStr)] string lpExistingFileName,   // LPCSTR
    [MarshalAs(UnmanagedType.LPStr)] string lpNewFileName,   // LPCSTR
    bool bFailIfExists   // BOOL
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CopyFileA(
    <MarshalAs(UnmanagedType.LPStr)> lpExistingFileName As String,   ' LPCSTR
    <MarshalAs(UnmanagedType.LPStr)> lpNewFileName As String,   ' LPCSTR
    bFailIfExists As Boolean   ' BOOL
) As Boolean
End Function

' lpExistingFileName : LPCSTR
' lpNewFileName : LPCSTR
' bFailIfExists : BOOL
Declare PtrSafe Function CopyFileA Lib "kernel32" ( _
    ByVal lpExistingFileName As String, _
    ByVal lpNewFileName As String, _
    ByVal bFailIfExists 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

CopyFileA = ctypes.windll.kernel32.CopyFileA
CopyFileA.restype = wintypes.BOOL
CopyFileA.argtypes = [
    wintypes.LPCSTR,  # lpExistingFileName : LPCSTR
    wintypes.LPCSTR,  # lpNewFileName : LPCSTR
    wintypes.BOOL,  # bFailIfExists : BOOL
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
CopyFileA = Fiddle::Function.new(
  lib['CopyFileA'],
  [
    Fiddle::TYPE_VOIDP,  # lpExistingFileName : LPCSTR
    Fiddle::TYPE_VOIDP,  # lpNewFileName : LPCSTR
    Fiddle::TYPE_INT,  # bFailIfExists : BOOL
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn CopyFileA(
        lpExistingFileName: *const u8,  // LPCSTR
        lpNewFileName: *const u8,  // LPCSTR
        bFailIfExists: i32  // BOOL
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern bool CopyFileA([MarshalAs(UnmanagedType.LPStr)] string lpExistingFileName, [MarshalAs(UnmanagedType.LPStr)] string lpNewFileName, bool bFailIfExists);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_CopyFileA' -Namespace Win32 -PassThru
# $api::CopyFileA(lpExistingFileName, lpNewFileName, bFailIfExists)

#uselib "KERNEL32.dll"
#func global CopyFileA "CopyFileA" sptr, sptr, sptr
; CopyFileA lpExistingFileName, lpNewFileName, bFailIfExists   ; 戻り値は stat
; lpExistingFileName : LPCSTR -> "sptr"
; lpNewFileName : LPCSTR -> "sptr"
; bFailIfExists : BOOL -> "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 CopyFileA "CopyFileA" str, str, int
; res = CopyFileA(lpExistingFileName, lpNewFileName, bFailIfExists)
; lpExistingFileName : LPCSTR -> "str"
; lpNewFileName : LPCSTR -> "str"
; bFailIfExists : BOOL -> "int"

; BOOL CopyFileA(LPCSTR lpExistingFileName, LPCSTR lpNewFileName, BOOL bFailIfExists)
#uselib "KERNEL32.dll"
#cfunc global CopyFileA "CopyFileA" str, str, int
; res = CopyFileA(lpExistingFileName, lpNewFileName, bFailIfExists)
; lpExistingFileName : LPCSTR -> "str"
; lpNewFileName : LPCSTR -> "str"
; bFailIfExists : BOOL -> "int"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procCopyFileA = kernel32.NewProc("CopyFileA")
)

// lpExistingFileName (LPCSTR), lpNewFileName (LPCSTR), bFailIfExists (BOOL)
r1, _, err := procCopyFileA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpExistingFileName))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpNewFileName))),
	uintptr(bFailIfExists),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CopyFileA(
  lpExistingFileName: PAnsiChar;   // LPCSTR
  lpNewFileName: PAnsiChar;   // LPCSTR
  bFailIfExists: BOOL   // BOOL
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'CopyFileA';

result := DllCall("KERNEL32\CopyFileA"
    , "AStr", lpExistingFileName   ; LPCSTR
    , "AStr", lpNewFileName   ; LPCSTR
    , "Int", bFailIfExists   ; BOOL
    , "Int")   ; return: BOOL

●CopyFileA(lpExistingFileName, lpNewFileName, bFailIfExists) = DLL("KERNEL32.dll", "bool CopyFileA(char*, char*, bool)")
# 呼び出し: CopyFileA(lpExistingFileName, lpNewFileName, bFailIfExists)
# lpExistingFileName : LPCSTR -> "char*"
# lpNewFileName : LPCSTR -> "char*"
# bFailIfExists : BOOL -> "bool"
# 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)。