JetDeleteColumn2A

関数

オプション指定付きでテーブルから列を削除する(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 JetDeleteColumn2A(
    JET_SESID sesid,
    JET_TABLEID tableid,
    CHAR* szColumnName,
    DWORD grbit
);

パラメーター

名前	型	方向
sesid	JET_SESID	in
tableid	JET_TABLEID	in
szColumnName	CHAR*	in
grbit	DWORD	in

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 JetDeleteColumn2A(
    JET_SESID sesid,
    JET_TABLEID tableid,
    CHAR* szColumnName,
    DWORD grbit
);

[DllImport("ESENT.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern int JetDeleteColumn2A(
    UIntPtr sesid,   // JET_SESID
    UIntPtr tableid,   // JET_TABLEID
    IntPtr szColumnName,   // CHAR*
    uint grbit   // DWORD
);

<DllImport("ESENT.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function JetDeleteColumn2A(
    sesid As UIntPtr,   ' JET_SESID
    tableid As UIntPtr,   ' JET_TABLEID
    szColumnName As IntPtr,   ' CHAR*
    grbit As UInteger   ' DWORD
) As Integer
End Function

' sesid : JET_SESID
' tableid : JET_TABLEID
' szColumnName : CHAR*
' grbit : DWORD
Declare PtrSafe Function JetDeleteColumn2A Lib "esent" ( _
    ByVal sesid As LongPtr, _
    ByVal tableid As LongPtr, _
    ByVal szColumnName As LongPtr, _
    ByVal grbit 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

JetDeleteColumn2A = ctypes.windll.esent.JetDeleteColumn2A
JetDeleteColumn2A.restype = ctypes.c_int
JetDeleteColumn2A.argtypes = [
    ctypes.c_size_t,  # sesid : JET_SESID
    ctypes.c_size_t,  # tableid : JET_TABLEID
    ctypes.POINTER(ctypes.c_byte),  # szColumnName : CHAR*
    wintypes.DWORD,  # grbit : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ESENT.dll')
JetDeleteColumn2A = Fiddle::Function.new(
  lib['JetDeleteColumn2A'],
  [
    Fiddle::TYPE_UINTPTR_T,  # sesid : JET_SESID
    Fiddle::TYPE_UINTPTR_T,  # tableid : JET_TABLEID
    Fiddle::TYPE_VOIDP,  # szColumnName : CHAR*
    -Fiddle::TYPE_INT,  # grbit : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "esent")]
extern "system" {
    fn JetDeleteColumn2A(
        sesid: usize,  // JET_SESID
        tableid: usize,  // JET_TABLEID
        szColumnName: *mut i8,  // CHAR*
        grbit: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ESENT.dll", CharSet = CharSet.Ansi)]
public static extern int JetDeleteColumn2A(UIntPtr sesid, UIntPtr tableid, IntPtr szColumnName, uint grbit);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ESENT_JetDeleteColumn2A' -Namespace Win32 -PassThru
# $api::JetDeleteColumn2A(sesid, tableid, szColumnName, grbit)

#uselib "ESENT.dll"
#func global JetDeleteColumn2A "JetDeleteColumn2A" sptr, sptr, sptr, sptr
; JetDeleteColumn2A sesid, tableid, varptr(szColumnName), grbit   ; 戻り値は stat
; sesid : JET_SESID -> "sptr"
; tableid : JET_TABLEID -> "sptr"
; szColumnName : CHAR* -> "sptr"
; grbit : DWORD -> "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 JetDeleteColumn2A "JetDeleteColumn2A" sptr, sptr, var, int
; res = JetDeleteColumn2A(sesid, tableid, szColumnName, grbit)
; sesid : JET_SESID -> "sptr"
; tableid : JET_TABLEID -> "sptr"
; szColumnName : CHAR* -> "var"
; grbit : DWORD -> "int"
; ※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 JetDeleteColumn2A "JetDeleteColumn2A" sptr, sptr, sptr, int
; res = JetDeleteColumn2A(sesid, tableid, varptr(szColumnName), grbit)
; sesid : JET_SESID -> "sptr"
; tableid : JET_TABLEID -> "sptr"
; szColumnName : CHAR* -> "sptr"
; grbit : DWORD -> "int"
; ※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 JetDeleteColumn2A(JET_SESID sesid, JET_TABLEID tableid, CHAR* szColumnName, DWORD grbit)
#uselib "ESENT.dll"
#cfunc global JetDeleteColumn2A "JetDeleteColumn2A" intptr, intptr, var, int
; res = JetDeleteColumn2A(sesid, tableid, szColumnName, grbit)
; sesid : JET_SESID -> "intptr"
; tableid : JET_TABLEID -> "intptr"
; szColumnName : CHAR* -> "var"
; grbit : DWORD -> "int"
; ※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 JetDeleteColumn2A(JET_SESID sesid, JET_TABLEID tableid, CHAR* szColumnName, DWORD grbit)
#uselib "ESENT.dll"
#cfunc global JetDeleteColumn2A "JetDeleteColumn2A" intptr, intptr, intptr, int
; res = JetDeleteColumn2A(sesid, tableid, varptr(szColumnName), grbit)
; sesid : JET_SESID -> "intptr"
; tableid : JET_TABLEID -> "intptr"
; szColumnName : CHAR* -> "intptr"
; grbit : DWORD -> "int"
; ※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")
	procJetDeleteColumn2A = esent.NewProc("JetDeleteColumn2A")
)

// sesid (JET_SESID), tableid (JET_TABLEID), szColumnName (CHAR*), grbit (DWORD)
r1, _, err := procJetDeleteColumn2A.Call(
	uintptr(sesid),
	uintptr(tableid),
	uintptr(szColumnName),
	uintptr(grbit),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function JetDeleteColumn2A(
  sesid: NativeUInt;   // JET_SESID
  tableid: NativeUInt;   // JET_TABLEID
  szColumnName: Pointer;   // CHAR*
  grbit: DWORD   // DWORD
): Integer; stdcall;
  external 'ESENT.dll' name 'JetDeleteColumn2A';

result := DllCall("ESENT\JetDeleteColumn2A"
    , "UPtr", sesid   ; JET_SESID
    , "UPtr", tableid   ; JET_TABLEID
    , "Ptr", szColumnName   ; CHAR*
    , "UInt", grbit   ; DWORD
    , "Int")   ; return: INT

●JetDeleteColumn2A(sesid, tableid, szColumnName, grbit) = DLL("ESENT.dll", "int JetDeleteColumn2A(int, int, void*, dword)")
# 呼び出し: JetDeleteColumn2A(sesid, tableid, szColumnName, grbit)
# sesid : JET_SESID -> "int"
# tableid : JET_TABLEID -> "int"
# szColumnName : CHAR* -> "void*"
# grbit : 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)。