JetGetVersion

関数

ESEデータベースエンジンのバージョン番号を取得する。

DLLESENT.dll呼出規約winapi

シグネチャ

// ESENT.dll
#include <windows.h>

INT JetGetVersion(
    JET_SESID sesid,
    DWORD* pwVersion
);

パラメーター

名前	型	方向
sesid	JET_SESID	in
pwVersion	DWORD*	out

戻り値の型: INT

各言語での呼び出し定義

// ESENT.dll
#include <windows.h>

INT JetGetVersion(
    JET_SESID sesid,
    DWORD* pwVersion
);

[DllImport("ESENT.dll", ExactSpelling = true)]
static extern int JetGetVersion(
    UIntPtr sesid,   // JET_SESID
    out uint pwVersion   // DWORD* out
);

<DllImport("ESENT.dll", ExactSpelling:=True)>
Public Shared Function JetGetVersion(
    sesid As UIntPtr,   ' JET_SESID
    <Out> ByRef pwVersion As UInteger   ' DWORD* out
) As Integer
End Function

' sesid : JET_SESID
' pwVersion : DWORD* out
Declare PtrSafe Function JetGetVersion Lib "esent" ( _
    ByVal sesid As LongPtr, _
    ByRef pwVersion 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

JetGetVersion = ctypes.windll.esent.JetGetVersion
JetGetVersion.restype = ctypes.c_int
JetGetVersion.argtypes = [
    ctypes.c_size_t,  # sesid : JET_SESID
    ctypes.POINTER(wintypes.DWORD),  # pwVersion : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ESENT.dll')
JetGetVersion = Fiddle::Function.new(
  lib['JetGetVersion'],
  [
    Fiddle::TYPE_UINTPTR_T,  # sesid : JET_SESID
    Fiddle::TYPE_VOIDP,  # pwVersion : DWORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "esent")]
extern "system" {
    fn JetGetVersion(
        sesid: usize,  // JET_SESID
        pwVersion: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ESENT.dll")]
public static extern int JetGetVersion(UIntPtr sesid, out uint pwVersion);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ESENT_JetGetVersion' -Namespace Win32 -PassThru
# $api::JetGetVersion(sesid, pwVersion)

#uselib "ESENT.dll"
#func global JetGetVersion "JetGetVersion" sptr, sptr
; JetGetVersion sesid, varptr(pwVersion)   ; 戻り値は stat
; sesid : JET_SESID -> "sptr"
; pwVersion : DWORD* out -> "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 JetGetVersion "JetGetVersion" sptr, var
; res = JetGetVersion(sesid, pwVersion)
; sesid : JET_SESID -> "sptr"
; pwVersion : DWORD* out -> "var"
; ※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 JetGetVersion "JetGetVersion" sptr, sptr
; res = JetGetVersion(sesid, varptr(pwVersion))
; sesid : JET_SESID -> "sptr"
; pwVersion : DWORD* out -> "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 JetGetVersion(JET_SESID sesid, DWORD* pwVersion)
#uselib "ESENT.dll"
#cfunc global JetGetVersion "JetGetVersion" intptr, var
; res = JetGetVersion(sesid, pwVersion)
; sesid : JET_SESID -> "intptr"
; pwVersion : DWORD* out -> "var"
; ※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 JetGetVersion(JET_SESID sesid, DWORD* pwVersion)
#uselib "ESENT.dll"
#cfunc global JetGetVersion "JetGetVersion" intptr, intptr
; res = JetGetVersion(sesid, varptr(pwVersion))
; sesid : JET_SESID -> "intptr"
; pwVersion : DWORD* out -> "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")
	procJetGetVersion = esent.NewProc("JetGetVersion")
)

// sesid (JET_SESID), pwVersion (DWORD* out)
r1, _, err := procJetGetVersion.Call(
	uintptr(sesid),
	uintptr(pwVersion),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function JetGetVersion(
  sesid: NativeUInt;   // JET_SESID
  pwVersion: Pointer   // DWORD* out
): Integer; stdcall;
  external 'ESENT.dll' name 'JetGetVersion';

result := DllCall("ESENT\JetGetVersion"
    , "UPtr", sesid   ; JET_SESID
    , "Ptr", pwVersion   ; DWORD* out
    , "Int")   ; return: INT

●JetGetVersion(sesid, pwVersion) = DLL("ESENT.dll", "int JetGetVersion(int, void*)")
# 呼び出し: JetGetVersion(sesid, pwVersion)
# sesid : JET_SESID -> "int"
# pwVersion : DWORD* out -> "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)。