JetAddColumnW

関数

テーブルに新しい列を追加する(Unicode版)。

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

シグネチャ

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

INT JetAddColumnW(
    JET_SESID sesid,
    JET_TABLEID tableid,
    WORD* szColumnName,
    const JET_COLUMNDEF* pcolumndef,
    void* pvDefault,   // optional
    DWORD cbDefault,
    DWORD* pcolumnid   // optional
);

パラメーター

名前	型	方向
sesid	JET_SESID	in
tableid	JET_TABLEID	in
szColumnName	WORD*	in
pcolumndef	JET_COLUMNDEF*	in
pvDefault	void*	inoptional
cbDefault	DWORD	in
pcolumnid	DWORD*	outoptional

戻り値の型: INT

各言語での呼び出し定義

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

INT JetAddColumnW(
    JET_SESID sesid,
    JET_TABLEID tableid,
    WORD* szColumnName,
    const JET_COLUMNDEF* pcolumndef,
    void* pvDefault,   // optional
    DWORD cbDefault,
    DWORD* pcolumnid   // optional
);

[DllImport("ESENT.dll", CharSet = CharSet.Unicode, ExactSpelling = true)]
static extern int JetAddColumnW(
    UIntPtr sesid,   // JET_SESID
    UIntPtr tableid,   // JET_TABLEID
    ref ushort szColumnName,   // WORD*
    IntPtr pcolumndef,   // JET_COLUMNDEF*
    IntPtr pvDefault,   // void* optional
    uint cbDefault,   // DWORD
    IntPtr pcolumnid   // DWORD* optional, out
);

<DllImport("ESENT.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function JetAddColumnW(
    sesid As UIntPtr,   ' JET_SESID
    tableid As UIntPtr,   ' JET_TABLEID
    ByRef szColumnName As UShort,   ' WORD*
    pcolumndef As IntPtr,   ' JET_COLUMNDEF*
    pvDefault As IntPtr,   ' void* optional
    cbDefault As UInteger,   ' DWORD
    pcolumnid As IntPtr   ' DWORD* optional, out
) As Integer
End Function

' sesid : JET_SESID
' tableid : JET_TABLEID
' szColumnName : WORD*
' pcolumndef : JET_COLUMNDEF*
' pvDefault : void* optional
' cbDefault : DWORD
' pcolumnid : DWORD* optional, out
Declare PtrSafe Function JetAddColumnW Lib "esent" ( _
    ByVal sesid As LongPtr, _
    ByVal tableid As LongPtr, _
    ByRef szColumnName As Integer, _
    ByVal pcolumndef As LongPtr, _
    ByVal pvDefault As LongPtr, _
    ByVal cbDefault As Long, _
    ByVal pcolumnid As LongPtr) 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

JetAddColumnW = ctypes.windll.esent.JetAddColumnW
JetAddColumnW.restype = ctypes.c_int
JetAddColumnW.argtypes = [
    ctypes.c_size_t,  # sesid : JET_SESID
    ctypes.c_size_t,  # tableid : JET_TABLEID
    ctypes.POINTER(ctypes.c_ushort),  # szColumnName : WORD*
    ctypes.c_void_p,  # pcolumndef : JET_COLUMNDEF*
    ctypes.POINTER(None),  # pvDefault : void* optional
    wintypes.DWORD,  # cbDefault : DWORD
    ctypes.POINTER(wintypes.DWORD),  # pcolumnid : DWORD* optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ESENT.dll')
JetAddColumnW = Fiddle::Function.new(
  lib['JetAddColumnW'],
  [
    Fiddle::TYPE_UINTPTR_T,  # sesid : JET_SESID
    Fiddle::TYPE_UINTPTR_T,  # tableid : JET_TABLEID
    Fiddle::TYPE_VOIDP,  # szColumnName : WORD*
    Fiddle::TYPE_VOIDP,  # pcolumndef : JET_COLUMNDEF*
    Fiddle::TYPE_VOIDP,  # pvDefault : void* optional
    -Fiddle::TYPE_INT,  # cbDefault : DWORD
    Fiddle::TYPE_VOIDP,  # pcolumnid : DWORD* optional, out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "esent")]
extern "system" {
    fn JetAddColumnW(
        sesid: usize,  // JET_SESID
        tableid: usize,  // JET_TABLEID
        szColumnName: *mut u16,  // WORD*
        pcolumndef: *const JET_COLUMNDEF,  // JET_COLUMNDEF*
        pvDefault: *mut (),  // void* optional
        cbDefault: u32,  // DWORD
        pcolumnid: *mut u32  // DWORD* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ESENT.dll", CharSet = CharSet.Unicode)]
public static extern int JetAddColumnW(UIntPtr sesid, UIntPtr tableid, ref ushort szColumnName, IntPtr pcolumndef, IntPtr pvDefault, uint cbDefault, IntPtr pcolumnid);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ESENT_JetAddColumnW' -Namespace Win32 -PassThru
# $api::JetAddColumnW(sesid, tableid, szColumnName, pcolumndef, pvDefault, cbDefault, pcolumnid)

#uselib "ESENT.dll"
#func global JetAddColumnW "JetAddColumnW" wptr, wptr, wptr, wptr, wptr, wptr, wptr
; JetAddColumnW sesid, tableid, varptr(szColumnName), varptr(pcolumndef), pvDefault, cbDefault, varptr(pcolumnid)   ; 戻り値は stat
; sesid : JET_SESID -> "wptr"
; tableid : JET_TABLEID -> "wptr"
; szColumnName : WORD* -> "wptr"
; pcolumndef : JET_COLUMNDEF* -> "wptr"
; pvDefault : void* optional -> "wptr"
; cbDefault : DWORD -> "wptr"
; pcolumnid : DWORD* optional, out -> "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。

出力引数:

#uselib "ESENT.dll"
#cfunc global JetAddColumnW "JetAddColumnW" sptr, sptr, var, var, sptr, int, var
; res = JetAddColumnW(sesid, tableid, szColumnName, pcolumndef, pvDefault, cbDefault, pcolumnid)
; sesid : JET_SESID -> "sptr"
; tableid : JET_TABLEID -> "sptr"
; szColumnName : WORD* -> "var"
; pcolumndef : JET_COLUMNDEF* -> "var"
; pvDefault : void* optional -> "sptr"
; cbDefault : DWORD -> "int"
; pcolumnid : DWORD* optional, 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 JetAddColumnW "JetAddColumnW" sptr, sptr, sptr, sptr, sptr, int, sptr
; res = JetAddColumnW(sesid, tableid, varptr(szColumnName), varptr(pcolumndef), pvDefault, cbDefault, varptr(pcolumnid))
; sesid : JET_SESID -> "sptr"
; tableid : JET_TABLEID -> "sptr"
; szColumnName : WORD* -> "sptr"
; pcolumndef : JET_COLUMNDEF* -> "sptr"
; pvDefault : void* optional -> "sptr"
; cbDefault : DWORD -> "int"
; pcolumnid : DWORD* optional, 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 JetAddColumnW(JET_SESID sesid, JET_TABLEID tableid, WORD* szColumnName, JET_COLUMNDEF* pcolumndef, void* pvDefault, DWORD cbDefault, DWORD* pcolumnid)
#uselib "ESENT.dll"
#cfunc global JetAddColumnW "JetAddColumnW" intptr, intptr, var, var, intptr, int, var
; res = JetAddColumnW(sesid, tableid, szColumnName, pcolumndef, pvDefault, cbDefault, pcolumnid)
; sesid : JET_SESID -> "intptr"
; tableid : JET_TABLEID -> "intptr"
; szColumnName : WORD* -> "var"
; pcolumndef : JET_COLUMNDEF* -> "var"
; pvDefault : void* optional -> "intptr"
; cbDefault : DWORD -> "int"
; pcolumnid : DWORD* optional, 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 JetAddColumnW(JET_SESID sesid, JET_TABLEID tableid, WORD* szColumnName, JET_COLUMNDEF* pcolumndef, void* pvDefault, DWORD cbDefault, DWORD* pcolumnid)
#uselib "ESENT.dll"
#cfunc global JetAddColumnW "JetAddColumnW" intptr, intptr, intptr, intptr, intptr, int, intptr
; res = JetAddColumnW(sesid, tableid, varptr(szColumnName), varptr(pcolumndef), pvDefault, cbDefault, varptr(pcolumnid))
; sesid : JET_SESID -> "intptr"
; tableid : JET_TABLEID -> "intptr"
; szColumnName : WORD* -> "intptr"
; pcolumndef : JET_COLUMNDEF* -> "intptr"
; pvDefault : void* optional -> "intptr"
; cbDefault : DWORD -> "int"
; pcolumnid : DWORD* optional, 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")
	procJetAddColumnW = esent.NewProc("JetAddColumnW")
)

// sesid (JET_SESID), tableid (JET_TABLEID), szColumnName (WORD*), pcolumndef (JET_COLUMNDEF*), pvDefault (void* optional), cbDefault (DWORD), pcolumnid (DWORD* optional, out)
r1, _, err := procJetAddColumnW.Call(
	uintptr(sesid),
	uintptr(tableid),
	uintptr(szColumnName),
	uintptr(pcolumndef),
	uintptr(pvDefault),
	uintptr(cbDefault),
	uintptr(pcolumnid),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function JetAddColumnW(
  sesid: NativeUInt;   // JET_SESID
  tableid: NativeUInt;   // JET_TABLEID
  szColumnName: Pointer;   // WORD*
  pcolumndef: Pointer;   // JET_COLUMNDEF*
  pvDefault: Pointer;   // void* optional
  cbDefault: DWORD;   // DWORD
  pcolumnid: Pointer   // DWORD* optional, out
): Integer; stdcall;
  external 'ESENT.dll' name 'JetAddColumnW';

result := DllCall("ESENT\JetAddColumnW"
    , "UPtr", sesid   ; JET_SESID
    , "UPtr", tableid   ; JET_TABLEID
    , "Ptr", szColumnName   ; WORD*
    , "Ptr", pcolumndef   ; JET_COLUMNDEF*
    , "Ptr", pvDefault   ; void* optional
    , "UInt", cbDefault   ; DWORD
    , "Ptr", pcolumnid   ; DWORD* optional, out
    , "Int")   ; return: INT

●JetAddColumnW(sesid, tableid, szColumnName, pcolumndef, pvDefault, cbDefault, pcolumnid) = DLL("ESENT.dll", "int JetAddColumnW(int, int, void*, void*, void*, dword, void*)")
# 呼び出し: JetAddColumnW(sesid, tableid, szColumnName, pcolumndef, pvDefault, cbDefault, pcolumnid)
# sesid : JET_SESID -> "int"
# tableid : JET_TABLEID -> "int"
# szColumnName : WORD* -> "void*"
# pcolumndef : JET_COLUMNDEF* -> "void*"
# pvDefault : void* optional -> "void*"
# cbDefault : DWORD -> "dword"
# pcolumnid : DWORD* optional, 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。