JetRestore2A

関数

復元先を指定してバックアップから復元する(ANSI版)。

DLLESENT.dll文字セットANSI (-A)呼出規約winapi

シグネチャ

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

INT JetRestore2A(
    CHAR* sz,
    CHAR* szDest,   // optional
    JET_PFNSTATUS pfn   // optional
);

パラメーター

名前	型	方向
sz	CHAR*	in
szDest	CHAR*	inoptional
pfn	JET_PFNSTATUS	inoptional

戻り値の型: INT

各言語での呼び出し定義

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

INT JetRestore2A(
    CHAR* sz,
    CHAR* szDest,   // optional
    JET_PFNSTATUS pfn   // optional
);

[DllImport("ESENT.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern int JetRestore2A(
    IntPtr sz,   // CHAR*
    IntPtr szDest,   // CHAR* optional
    IntPtr pfn   // JET_PFNSTATUS optional
);

<DllImport("ESENT.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function JetRestore2A(
    sz As IntPtr,   ' CHAR*
    szDest As IntPtr,   ' CHAR* optional
    pfn As IntPtr   ' JET_PFNSTATUS optional
) As Integer
End Function

' sz : CHAR*
' szDest : CHAR* optional
' pfn : JET_PFNSTATUS optional
Declare PtrSafe Function JetRestore2A Lib "esent" ( _
    ByVal sz As LongPtr, _
    ByVal szDest As LongPtr, _
    ByVal pfn As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

JetRestore2A = ctypes.windll.esent.JetRestore2A
JetRestore2A.restype = ctypes.c_int
JetRestore2A.argtypes = [
    ctypes.POINTER(ctypes.c_byte),  # sz : CHAR*
    ctypes.POINTER(ctypes.c_byte),  # szDest : CHAR* optional
    ctypes.c_void_p,  # pfn : JET_PFNSTATUS optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ESENT.dll')
JetRestore2A = Fiddle::Function.new(
  lib['JetRestore2A'],
  [
    Fiddle::TYPE_VOIDP,  # sz : CHAR*
    Fiddle::TYPE_VOIDP,  # szDest : CHAR* optional
    Fiddle::TYPE_VOIDP,  # pfn : JET_PFNSTATUS optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "esent")]
extern "system" {
    fn JetRestore2A(
        sz: *mut i8,  // CHAR*
        szDest: *mut i8,  // CHAR* optional
        pfn: *const core::ffi::c_void  // JET_PFNSTATUS optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ESENT.dll", CharSet = CharSet.Ansi)]
public static extern int JetRestore2A(IntPtr sz, IntPtr szDest, IntPtr pfn);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ESENT_JetRestore2A' -Namespace Win32 -PassThru
# $api::JetRestore2A(sz, szDest, pfn)

#uselib "ESENT.dll"
#func global JetRestore2A "JetRestore2A" sptr, sptr, sptr
; JetRestore2A varptr(sz), varptr(szDest), pfn   ; 戻り値は stat
; sz : CHAR* -> "sptr"
; szDest : CHAR* optional -> "sptr"
; pfn : JET_PFNSTATUS optional -> "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。

出力引数:

#uselib "ESENT.dll"
#cfunc global JetRestore2A "JetRestore2A" var, var, sptr
; res = JetRestore2A(sz, szDest, pfn)
; sz : CHAR* -> "var"
; szDest : CHAR* optional -> "var"
; pfn : JET_PFNSTATUS optional -> "sptr"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。#uselib "ESENT.dll"
#cfunc global JetRestore2A "JetRestore2A" sptr, sptr, sptr
; res = JetRestore2A(varptr(sz), varptr(szDest), pfn)
; sz : CHAR* -> "sptr"
; szDest : CHAR* optional -> "sptr"
; pfn : JET_PFNSTATUS optional -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; INT JetRestore2A(CHAR* sz, CHAR* szDest, JET_PFNSTATUS pfn)
#uselib "ESENT.dll"
#cfunc global JetRestore2A "JetRestore2A" var, var, intptr
; res = JetRestore2A(sz, szDest, pfn)
; sz : CHAR* -> "var"
; szDest : CHAR* optional -> "var"
; pfn : JET_PFNSTATUS optional -> "intptr"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。; INT JetRestore2A(CHAR* sz, CHAR* szDest, JET_PFNSTATUS pfn)
#uselib "ESENT.dll"
#cfunc global JetRestore2A "JetRestore2A" intptr, intptr, intptr
; res = JetRestore2A(varptr(sz), varptr(szDest), pfn)
; sz : CHAR* -> "intptr"
; szDest : CHAR* optional -> "intptr"
; pfn : JET_PFNSTATUS optional -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

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

var (
	esent = windows.NewLazySystemDLL("ESENT.dll")
	procJetRestore2A = esent.NewProc("JetRestore2A")
)

// sz (CHAR*), szDest (CHAR* optional), pfn (JET_PFNSTATUS optional)
r1, _, err := procJetRestore2A.Call(
	uintptr(sz),
	uintptr(szDest),
	uintptr(pfn),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function JetRestore2A(
  sz: Pointer;   // CHAR*
  szDest: Pointer;   // CHAR* optional
  pfn: Pointer   // JET_PFNSTATUS optional
): Integer; stdcall;
  external 'ESENT.dll' name 'JetRestore2A';

result := DllCall("ESENT\JetRestore2A"
    , "Ptr", sz   ; CHAR*
    , "Ptr", szDest   ; CHAR* optional
    , "Ptr", pfn   ; JET_PFNSTATUS optional
    , "Int")   ; return: INT

●JetRestore2A(sz, szDest, pfn) = DLL("ESENT.dll", "int JetRestore2A(void*, void*, void*)")
# 呼び出し: JetRestore2A(sz, szDest, pfn)
# sz : CHAR* -> "void*"
# szDest : CHAR* optional -> "void*"
# pfn : JET_PFNSTATUS optional -> "void*"
# 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)。