JetGetCurrentIndexA

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

INT JetGetCurrentIndexA(
    JET_SESID sesid,
    JET_TABLEID tableid,
    CHAR* szIndexName,
    DWORD cbIndexName
);

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

' sesid : JET_SESID
' tableid : JET_TABLEID
' szIndexName : CHAR* out
' cbIndexName : DWORD
Declare PtrSafe Function JetGetCurrentIndexA Lib "esent" ( _
    ByVal sesid As LongPtr, _
    ByVal tableid As LongPtr, _
    ByVal szIndexName As LongPtr, _
    ByVal cbIndexName 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

JetGetCurrentIndexA = ctypes.windll.esent.JetGetCurrentIndexA
JetGetCurrentIndexA.restype = ctypes.c_int
JetGetCurrentIndexA.argtypes = [
    ctypes.c_size_t,  # sesid : JET_SESID
    ctypes.c_size_t,  # tableid : JET_TABLEID
    ctypes.POINTER(ctypes.c_byte),  # szIndexName : CHAR* out
    wintypes.DWORD,  # cbIndexName : DWORD
]

require 'fiddle'
require 'fiddle/import'

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

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

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

#uselib "ESENT.dll"
#func global JetGetCurrentIndexA "JetGetCurrentIndexA" sptr, sptr, sptr, sptr
; JetGetCurrentIndexA sesid, tableid, varptr(szIndexName), cbIndexName   ; 戻り値は stat
; sesid : JET_SESID -> "sptr"
; tableid : JET_TABLEID -> "sptr"
; szIndexName : CHAR* out -> "sptr"
; cbIndexName : 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。

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

var (
	esent = windows.NewLazySystemDLL("ESENT.dll")
	procJetGetCurrentIndexA = esent.NewProc("JetGetCurrentIndexA")
)

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

function JetGetCurrentIndexA(
  sesid: NativeUInt;   // JET_SESID
  tableid: NativeUInt;   // JET_TABLEID
  szIndexName: Pointer;   // CHAR* out
  cbIndexName: DWORD   // DWORD
): Integer; stdcall;
  external 'ESENT.dll' name 'JetGetCurrentIndexA';

result := DllCall("ESENT\JetGetCurrentIndexA"
    , "UPtr", sesid   ; JET_SESID
    , "UPtr", tableid   ; JET_TABLEID
    , "Ptr", szIndexName   ; CHAR* out
    , "UInt", cbIndexName   ; DWORD
    , "Int")   ; return: INT

●JetGetCurrentIndexA(sesid, tableid, szIndexName, cbIndexName) = DLL("ESENT.dll", "int JetGetCurrentIndexA(int, int, void*, dword)")
# 呼び出し: JetGetCurrentIndexA(sesid, tableid, szIndexName, cbIndexName)
# sesid : JET_SESID -> "int"
# tableid : JET_TABLEID -> "int"
# szIndexName : CHAR* out -> "void*"
# cbIndexName : 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)。

const std = @import("std");

extern "esent" fn JetGetCurrentIndexA(
    sesid: usize, // JET_SESID
    tableid: usize, // JET_TABLEID
    szIndexName: [*c]i8, // CHAR* out
    cbIndexName: u32 // DWORD
) callconv(std.os.windows.WINAPI) i32;

proc JetGetCurrentIndexA(
    sesid: uint,  # JET_SESID
    tableid: uint,  # JET_TABLEID
    szIndexName: ptr int8,  # CHAR* out
    cbIndexName: uint32  # DWORD
): int32 {.importc: "JetGetCurrentIndexA", stdcall, dynlib: "ESENT.dll".}

pragma(lib, "esent");
extern(Windows)
int JetGetCurrentIndexA(
    size_t sesid,   // JET_SESID
    size_t tableid,   // JET_TABLEID
    byte* szIndexName,   // CHAR* out
    uint cbIndexName   // DWORD
);

ccall((:JetGetCurrentIndexA, "ESENT.dll"), stdcall, Int32,
      (Csize_t, Csize_t, Ptr{Int8}, UInt32),
      sesid, tableid, szIndexName, cbIndexName)
# sesid : JET_SESID -> Csize_t
# tableid : JET_TABLEID -> Csize_t
# szIndexName : CHAR* out -> Ptr{Int8}
# cbIndexName : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t JetGetCurrentIndexA(
    uintptr_t sesid,
    uintptr_t tableid,
    int8_t* szIndexName,
    uint32_t cbIndexName);
]]
local esent = ffi.load("esent")
-- esent.JetGetCurrentIndexA(sesid, tableid, szIndexName, cbIndexName)
-- sesid : JET_SESID
-- tableid : JET_TABLEID
-- szIndexName : CHAR* out
-- cbIndexName : DWORD
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('ESENT.dll');
const JetGetCurrentIndexA = lib.func('__stdcall', 'JetGetCurrentIndexA', 'int32_t', ['uintptr_t', 'uintptr_t', 'int8_t *', 'uint32_t']);
// JetGetCurrentIndexA(sesid, tableid, szIndexName, cbIndexName)
// sesid : JET_SESID -> 'uintptr_t'
// tableid : JET_TABLEID -> 'uintptr_t'
// szIndexName : CHAR* out -> 'int8_t *'
// cbIndexName : DWORD -> 'uint32_t'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("ESENT.dll", {
  JetGetCurrentIndexA: { parameters: ["usize", "usize", "pointer", "u32"], result: "i32" },
});
// lib.symbols.JetGetCurrentIndexA(sesid, tableid, szIndexName, cbIndexName)
// sesid : JET_SESID -> "usize"
// tableid : JET_TABLEID -> "usize"
// szIndexName : CHAR* out -> "pointer"
// cbIndexName : DWORD -> "u32"
// 文字列は "buffer"。ANSI(-A) は new TextEncoder() で UTF-8/ANSI バイト列(末尾に \x00)を渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t JetGetCurrentIndexA(
    size_t sesid,
    size_t tableid,
    int8_t* szIndexName,
    uint32_t cbIndexName);
C, "ESENT.dll");
// $ffi->JetGetCurrentIndexA(sesid, tableid, szIndexName, cbIndexName);
// sesid : JET_SESID
// tableid : JET_TABLEID
// szIndexName : CHAR* out
// cbIndexName : DWORD
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Esent extends StdCallLibrary {
    Esent INSTANCE = Native.load("esent", Esent.class, W32APIOptions.ASCII_OPTIONS);
    int JetGetCurrentIndexA(
        long sesid,   // JET_SESID
        long tableid,   // JET_TABLEID
        byte[] szIndexName,   // CHAR* out
        int cbIndexName   // DWORD
    );
}

@[Link("esent")]
lib LibESENT
  fun JetGetCurrentIndexA = JetGetCurrentIndexA(
    sesid : LibC::SizeT,   # JET_SESID
    tableid : LibC::SizeT,   # JET_TABLEID
    szIndexName : Int8*,   # CHAR* out
    cbIndexName : UInt32   # DWORD
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef JetGetCurrentIndexANative = Int32 Function(UintPtr, UintPtr, Pointer<Int8>, Uint32);
typedef JetGetCurrentIndexADart = int Function(int, int, Pointer<Int8>, int);
final JetGetCurrentIndexA = DynamicLibrary.open('ESENT.dll')
    .lookupFunction<JetGetCurrentIndexANative, JetGetCurrentIndexADart>('JetGetCurrentIndexA');
// sesid : JET_SESID -> UintPtr
// tableid : JET_TABLEID -> UintPtr
// szIndexName : CHAR* out -> Pointer<Int8>
// cbIndexName : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function JetGetCurrentIndexA(
  sesid: NativeUInt;   // JET_SESID
  tableid: NativeUInt;   // JET_TABLEID
  szIndexName: Pointer;   // CHAR* out
  cbIndexName: DWORD   // DWORD
): Integer; stdcall;
  external 'ESENT.dll' name 'JetGetCurrentIndexA';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "JetGetCurrentIndexA"
  c_JetGetCurrentIndexA :: CUIntPtr -> CUIntPtr -> Ptr Int8 -> Word32 -> IO Int32
-- sesid : JET_SESID -> CUIntPtr
-- tableid : JET_TABLEID -> CUIntPtr
-- szIndexName : CHAR* out -> Ptr Int8
-- cbIndexName : DWORD -> Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let jetgetcurrentindexa =
  foreign "JetGetCurrentIndexA"
    (size_t @-> size_t @-> (ptr int8_t) @-> uint32_t @-> returning int32_t)
(* sesid : JET_SESID -> size_t *)
(* tableid : JET_TABLEID -> size_t *)
(* szIndexName : CHAR* out -> (ptr int8_t) *)
(* cbIndexName : DWORD -> uint32_t *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library esent (t "ESENT.dll"))
(cffi:use-foreign-library esent)

(cffi:defcfun ("JetGetCurrentIndexA" jet-get-current-index-a :convention :stdcall) :int32
  (sesid :uint64)   ; JET_SESID
  (tableid :uint64)   ; JET_TABLEID
  (sz-index-name :pointer)   ; CHAR* out
  (cb-index-name :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $JetGetCurrentIndexA = Win32::API::More->new('ESENT',
    'int JetGetCurrentIndexA(WPARAM sesid, WPARAM tableid, LPVOID szIndexName, DWORD cbIndexName)');
# my $ret = $JetGetCurrentIndexA->Call($sesid, $tableid, $szIndexName, $cbIndexName);
# sesid : JET_SESID -> WPARAM
# tableid : JET_TABLEID -> WPARAM
# szIndexName : CHAR* out -> LPVOID
# cbIndexName : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。