JetInit

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

INT JetInit(
    JET_INSTANCE* pinstance   // optional
);

<DllImport("ESENT.dll", ExactSpelling:=True)>
Public Shared Function JetInit(
    pinstance As IntPtr   ' JET_INSTANCE* optional, in/out
) As Integer
End Function

' pinstance : JET_INSTANCE* optional, in/out
Declare PtrSafe Function JetInit Lib "esent" ( _
    ByVal pinstance As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

JetInit = ctypes.windll.esent.JetInit
JetInit.restype = ctypes.c_int
JetInit.argtypes = [
    ctypes.c_void_p,  # pinstance : JET_INSTANCE* optional, in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ESENT.dll')
JetInit = Fiddle::Function.new(
  lib['JetInit'],
  [
    Fiddle::TYPE_VOIDP,  # pinstance : JET_INSTANCE* optional, in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "esent")]
extern "system" {
    fn JetInit(
        pinstance: *mut usize  // JET_INSTANCE* optional, in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ESENT.dll")]
public static extern int JetInit(IntPtr pinstance);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ESENT_JetInit' -Namespace Win32 -PassThru
# $api::JetInit(pinstance)

#uselib "ESENT.dll"
#func global JetInit "JetInit" sptr
; JetInit varptr(pinstance)   ; 戻り値は stat
; pinstance : JET_INSTANCE* optional, in/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。

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

var (
	esent = windows.NewLazySystemDLL("ESENT.dll")
	procJetInit = esent.NewProc("JetInit")
)

// pinstance (JET_INSTANCE* optional, in/out)
r1, _, err := procJetInit.Call(
	uintptr(pinstance),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function JetInit(
  pinstance: Pointer   // JET_INSTANCE* optional, in/out
): Integer; stdcall;
  external 'ESENT.dll' name 'JetInit';

result := DllCall("ESENT\JetInit"
    , "Ptr", pinstance   ; JET_INSTANCE* optional, in/out
    , "Int")   ; return: INT

●JetInit(pinstance) = DLL("ESENT.dll", "int JetInit(void*)")
# 呼び出し: JetInit(pinstance)
# pinstance : JET_INSTANCE* optional, in/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)。

const std = @import("std");

extern "esent" fn JetInit(
    pinstance: [*c]usize // JET_INSTANCE* optional, in/out
) callconv(std.os.windows.WINAPI) i32;

proc JetInit(
    pinstance: ptr uint  # JET_INSTANCE* optional, in/out
): int32 {.importc: "JetInit", stdcall, dynlib: "ESENT.dll".}

pragma(lib, "esent");
extern(Windows)
int JetInit(
    size_t* pinstance   // JET_INSTANCE* optional, in/out
);

ccall((:JetInit, "ESENT.dll"), stdcall, Int32,
      (Ptr{Csize_t},),
      pinstance)
# pinstance : JET_INSTANCE* optional, in/out -> Ptr{Csize_t}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t JetInit(
    uintptr_t* pinstance);
]]
local esent = ffi.load("esent")
-- esent.JetInit(pinstance)
-- pinstance : JET_INSTANCE* optional, in/out
-- 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 JetInit = lib.func('__stdcall', 'JetInit', 'int32_t', ['uintptr_t *']);
// JetInit(pinstance)
// pinstance : JET_INSTANCE* optional, in/out -> 'uintptr_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", {
  JetInit: { parameters: ["pointer"], result: "i32" },
});
// lib.symbols.JetInit(pinstance)
// pinstance : JET_INSTANCE* optional, in/out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t JetInit(
    size_t* pinstance);
C, "ESENT.dll");
// $ffi->JetInit(pinstance);
// pinstance : JET_INSTANCE* optional, in/out
// 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);
    int JetInit(
        LongByReference pinstance   // JET_INSTANCE* optional, in/out
    );
}

@[Link("esent")]
lib LibESENT
  fun JetInit = JetInit(
    pinstance : LibC::SizeT*   # JET_INSTANCE* optional, in/out
  ) : 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 JetInitNative = Int32 Function(Pointer<UintPtr>);
typedef JetInitDart = int Function(Pointer<UintPtr>);
final JetInit = DynamicLibrary.open('ESENT.dll')
    .lookupFunction<JetInitNative, JetInitDart>('JetInit');
// pinstance : JET_INSTANCE* optional, in/out -> Pointer<UintPtr>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function JetInit(
  pinstance: Pointer   // JET_INSTANCE* optional, in/out
): Integer; stdcall;
  external 'ESENT.dll' name 'JetInit';

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

foreign import stdcall safe "JetInit"
  c_JetInit :: Ptr CUIntPtr -> IO Int32
-- pinstance : JET_INSTANCE* optional, in/out -> Ptr CUIntPtr
-- 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 jetinit =
  foreign "JetInit"
    ((ptr size_t) @-> returning int32_t)
(* pinstance : JET_INSTANCE* optional, in/out -> (ptr size_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 ("JetInit" jet-init :convention :stdcall) :int32
  (pinstance :pointer))   ; JET_INSTANCE* optional, in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $JetInit = Win32::API::More->new('ESENT',
    'int JetInit(LPVOID pinstance)');
# my $ret = $JetInit->Call($pinstance);
# pinstance : JET_INSTANCE* optional, in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。