JetGetTableColumnInfoW

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

INT JetGetTableColumnInfoW(
    JET_SESID sesid,
    JET_TABLEID tableid,
    WORD* szColumnName,   // optional
    void* pvResult,
    DWORD cbMax,
    DWORD InfoLevel
);

<DllImport("ESENT.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function JetGetTableColumnInfoW(
    sesid As UIntPtr,   ' JET_SESID
    tableid As UIntPtr,   ' JET_TABLEID
    szColumnName As IntPtr,   ' WORD* optional
    pvResult As IntPtr,   ' void* out
    cbMax As UInteger,   ' DWORD
    InfoLevel As UInteger   ' DWORD
) As Integer
End Function

' sesid : JET_SESID
' tableid : JET_TABLEID
' szColumnName : WORD* optional
' pvResult : void* out
' cbMax : DWORD
' InfoLevel : DWORD
Declare PtrSafe Function JetGetTableColumnInfoW Lib "esent" ( _
    ByVal sesid As LongPtr, _
    ByVal tableid As LongPtr, _
    ByVal szColumnName As LongPtr, _
    ByVal pvResult As LongPtr, _
    ByVal cbMax As Long, _
    ByVal InfoLevel As Long) 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

JetGetTableColumnInfoW = ctypes.windll.esent.JetGetTableColumnInfoW
JetGetTableColumnInfoW.restype = ctypes.c_int
JetGetTableColumnInfoW.argtypes = [
    ctypes.c_size_t,  # sesid : JET_SESID
    ctypes.c_size_t,  # tableid : JET_TABLEID
    ctypes.POINTER(ctypes.c_ushort),  # szColumnName : WORD* optional
    ctypes.POINTER(None),  # pvResult : void* out
    wintypes.DWORD,  # cbMax : DWORD
    wintypes.DWORD,  # InfoLevel : DWORD
]

require 'fiddle'
require 'fiddle/import'

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

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

$sig = @"
[DllImport("ESENT.dll", CharSet = CharSet.Unicode)]
public static extern int JetGetTableColumnInfoW(UIntPtr sesid, UIntPtr tableid, IntPtr szColumnName, IntPtr pvResult, uint cbMax, uint InfoLevel);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ESENT_JetGetTableColumnInfoW' -Namespace Win32 -PassThru
# $api::JetGetTableColumnInfoW(sesid, tableid, szColumnName, pvResult, cbMax, InfoLevel)

#uselib "ESENT.dll"
#func global JetGetTableColumnInfoW "JetGetTableColumnInfoW" wptr, wptr, wptr, wptr, wptr, wptr
; JetGetTableColumnInfoW sesid, tableid, varptr(szColumnName), pvResult, cbMax, InfoLevel   ; 戻り値は stat
; sesid : JET_SESID -> "wptr"
; tableid : JET_TABLEID -> "wptr"
; szColumnName : WORD* optional -> "wptr"
; pvResult : void* out -> "wptr"
; cbMax : DWORD -> "wptr"
; InfoLevel : DWORD -> "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。

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

var (
	esent = windows.NewLazySystemDLL("ESENT.dll")
	procJetGetTableColumnInfoW = esent.NewProc("JetGetTableColumnInfoW")
)

// sesid (JET_SESID), tableid (JET_TABLEID), szColumnName (WORD* optional), pvResult (void* out), cbMax (DWORD), InfoLevel (DWORD)
r1, _, err := procJetGetTableColumnInfoW.Call(
	uintptr(sesid),
	uintptr(tableid),
	uintptr(szColumnName),
	uintptr(pvResult),
	uintptr(cbMax),
	uintptr(InfoLevel),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function JetGetTableColumnInfoW(
  sesid: NativeUInt;   // JET_SESID
  tableid: NativeUInt;   // JET_TABLEID
  szColumnName: Pointer;   // WORD* optional
  pvResult: Pointer;   // void* out
  cbMax: DWORD;   // DWORD
  InfoLevel: DWORD   // DWORD
): Integer; stdcall;
  external 'ESENT.dll' name 'JetGetTableColumnInfoW';

result := DllCall("ESENT\JetGetTableColumnInfoW"
    , "UPtr", sesid   ; JET_SESID
    , "UPtr", tableid   ; JET_TABLEID
    , "Ptr", szColumnName   ; WORD* optional
    , "Ptr", pvResult   ; void* out
    , "UInt", cbMax   ; DWORD
    , "UInt", InfoLevel   ; DWORD
    , "Int")   ; return: INT

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

const std = @import("std");

extern "esent" fn JetGetTableColumnInfoW(
    sesid: usize, // JET_SESID
    tableid: usize, // JET_TABLEID
    szColumnName: [*c]u16, // WORD* optional
    pvResult: ?*anyopaque, // void* out
    cbMax: u32, // DWORD
    InfoLevel: u32 // DWORD
) callconv(std.os.windows.WINAPI) i32;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。

proc JetGetTableColumnInfoW(
    sesid: uint,  # JET_SESID
    tableid: uint,  # JET_TABLEID
    szColumnName: ptr uint16,  # WORD* optional
    pvResult: pointer,  # void* out
    cbMax: uint32,  # DWORD
    InfoLevel: uint32  # DWORD
): int32 {.importc: "JetGetTableColumnInfoW", stdcall, dynlib: "ESENT.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "esent");
extern(Windows)
int JetGetTableColumnInfoW(
    size_t sesid,   // JET_SESID
    size_t tableid,   // JET_TABLEID
    ushort* szColumnName,   // WORD* optional
    void* pvResult,   // void* out
    uint cbMax,   // DWORD
    uint InfoLevel   // DWORD
);

ccall((:JetGetTableColumnInfoW, "ESENT.dll"), stdcall, Int32,
      (Csize_t, Csize_t, Ptr{UInt16}, Ptr{Cvoid}, UInt32, UInt32),
      sesid, tableid, szColumnName, pvResult, cbMax, InfoLevel)
# sesid : JET_SESID -> Csize_t
# tableid : JET_TABLEID -> Csize_t
# szColumnName : WORD* optional -> Ptr{UInt16}
# pvResult : void* out -> Ptr{Cvoid}
# cbMax : DWORD -> UInt32
# InfoLevel : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
# Unicode(-W): Cwstring には transcode(UInt16, "...") 等で UTF-16 を渡す。

local ffi = require("ffi")
ffi.cdef[[
int32_t JetGetTableColumnInfoW(
    uintptr_t sesid,
    uintptr_t tableid,
    uint16_t* szColumnName,
    void* pvResult,
    uint32_t cbMax,
    uint32_t InfoLevel);
]]
local esent = ffi.load("esent")
-- esent.JetGetTableColumnInfoW(sesid, tableid, szColumnName, pvResult, cbMax, InfoLevel)
-- sesid : JET_SESID
-- tableid : JET_TABLEID
-- szColumnName : WORD* optional
-- pvResult : void* out
-- cbMax : DWORD
-- InfoLevel : 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。
-- Unicode(-W): uint16_t* には UTF-16LE のバッファ(ffi.new("uint16_t[?]", ...))を渡す。

const koffi = require('koffi');
const lib = koffi.load('ESENT.dll');
const JetGetTableColumnInfoW = lib.func('__stdcall', 'JetGetTableColumnInfoW', 'int32_t', ['uintptr_t', 'uintptr_t', 'uint16_t *', 'void *', 'uint32_t', 'uint32_t']);
// JetGetTableColumnInfoW(sesid, tableid, szColumnName, pvResult, cbMax, InfoLevel)
// sesid : JET_SESID -> 'uintptr_t'
// tableid : JET_TABLEID -> 'uintptr_t'
// szColumnName : WORD* optional -> 'uint16_t *'
// pvResult : void* out -> 'void *'
// cbMax : DWORD -> 'uint32_t'
// InfoLevel : 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", {
  JetGetTableColumnInfoW: { parameters: ["usize", "usize", "pointer", "pointer", "u32", "u32"], result: "i32" },
});
// lib.symbols.JetGetTableColumnInfoW(sesid, tableid, szColumnName, pvResult, cbMax, InfoLevel)
// sesid : JET_SESID -> "usize"
// tableid : JET_TABLEID -> "usize"
// szColumnName : WORD* optional -> "pointer"
// pvResult : void* out -> "pointer"
// cbMax : DWORD -> "u32"
// InfoLevel : DWORD -> "u32"
// 文字列は "buffer"。Unicode(-W) は new TextEncoder() ではなく UTF-16LE のバイト列(末尾に \x00\x00)を Uint8Array で渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t JetGetTableColumnInfoW(
    size_t sesid,
    size_t tableid,
    uint16_t* szColumnName,
    void* pvResult,
    uint32_t cbMax,
    uint32_t InfoLevel);
C, "ESENT.dll");
// $ffi->JetGetTableColumnInfoW(sesid, tableid, szColumnName, pvResult, cbMax, InfoLevel);
// sesid : JET_SESID
// tableid : JET_TABLEID
// szColumnName : WORD* optional
// pvResult : void* out
// cbMax : DWORD
// InfoLevel : 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.UNICODE_OPTIONS);
    int JetGetTableColumnInfoW(
        long sesid,   // JET_SESID
        long tableid,   // JET_TABLEID
        ShortByReference szColumnName,   // WORD* optional
        Pointer pvResult,   // void* out
        int cbMax,   // DWORD
        int InfoLevel   // DWORD
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("esent")]
lib LibESENT
  fun JetGetTableColumnInfoW = JetGetTableColumnInfoW(
    sesid : LibC::SizeT,   # JET_SESID
    tableid : LibC::SizeT,   # JET_TABLEID
    szColumnName : UInt16*,   # WORD* optional
    pvResult : Void*,   # void* out
    cbMax : UInt32,   # DWORD
    InfoLevel : 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 JetGetTableColumnInfoWNative = Int32 Function(UintPtr, UintPtr, Pointer<Uint16>, Pointer<Void>, Uint32, Uint32);
typedef JetGetTableColumnInfoWDart = int Function(int, int, Pointer<Uint16>, Pointer<Void>, int, int);
final JetGetTableColumnInfoW = DynamicLibrary.open('ESENT.dll')
    .lookupFunction<JetGetTableColumnInfoWNative, JetGetTableColumnInfoWDart>('JetGetTableColumnInfoW');
// sesid : JET_SESID -> UintPtr
// tableid : JET_TABLEID -> UintPtr
// szColumnName : WORD* optional -> Pointer<Uint16>
// pvResult : void* out -> Pointer<Void>
// cbMax : DWORD -> Uint32
// InfoLevel : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function JetGetTableColumnInfoW(
  sesid: NativeUInt;   // JET_SESID
  tableid: NativeUInt;   // JET_TABLEID
  szColumnName: Pointer;   // WORD* optional
  pvResult: Pointer;   // void* out
  cbMax: DWORD;   // DWORD
  InfoLevel: DWORD   // DWORD
): Integer; stdcall;
  external 'ESENT.dll' name 'JetGetTableColumnInfoW';

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

foreign import stdcall safe "JetGetTableColumnInfoW"
  c_JetGetTableColumnInfoW :: CUIntPtr -> CUIntPtr -> Ptr Word16 -> Ptr () -> Word32 -> Word32 -> IO Int32
-- sesid : JET_SESID -> CUIntPtr
-- tableid : JET_TABLEID -> CUIntPtr
-- szColumnName : WORD* optional -> Ptr Word16
-- pvResult : void* out -> Ptr ()
-- cbMax : DWORD -> Word32
-- InfoLevel : 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 jetgettablecolumninfow =
  foreign "JetGetTableColumnInfoW"
    (size_t @-> size_t @-> (ptr uint16_t) @-> (ptr void) @-> uint32_t @-> uint32_t @-> returning int32_t)
(* sesid : JET_SESID -> size_t *)
(* tableid : JET_TABLEID -> size_t *)
(* szColumnName : WORD* optional -> (ptr uint16_t) *)
(* pvResult : void* out -> (ptr void) *)
(* cbMax : DWORD -> uint32_t *)
(* InfoLevel : 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 ("JetGetTableColumnInfoW" jet-get-table-column-info-w :convention :stdcall) :int32
  (sesid :uint64)   ; JET_SESID
  (tableid :uint64)   ; JET_TABLEID
  (sz-column-name :pointer)   ; WORD* optional
  (pv-result :pointer)   ; void* out
  (cb-max :uint32)   ; DWORD
  (info-level :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $JetGetTableColumnInfoW = Win32::API::More->new('ESENT',
    'int JetGetTableColumnInfoW(WPARAM sesid, WPARAM tableid, LPVOID szColumnName, LPVOID pvResult, DWORD cbMax, DWORD InfoLevel)');
# my $ret = $JetGetTableColumnInfoW->Call($sesid, $tableid, $szColumnName, $pvResult, $cbMax, $InfoLevel);
# sesid : JET_SESID -> WPARAM
# tableid : JET_TABLEID -> WPARAM
# szColumnName : WORD* optional -> LPVOID
# pvResult : void* out -> LPVOID
# cbMax : DWORD -> DWORD
# InfoLevel : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。
# Unicode(-W): LPCWSTR/LPWSTR は Win32::API が UTF-16 変換を行う。