_lopen

// KERNEL32.dll
#include <windows.h>

INT _lopen(
    LPCSTR lpPathName,
    INT iReadWrite
);

<DllImport("KERNEL32.dll", ExactSpelling:=True)>
Public Shared Function _lopen(
    <MarshalAs(UnmanagedType.LPStr)> lpPathName As String,   ' LPCSTR
    iReadWrite As Integer   ' INT
) As Integer
End Function

' lpPathName : LPCSTR
' iReadWrite : INT
Declare PtrSafe Function _lopen Lib "kernel32" ( _
    ByVal lpPathName As String, _
    ByVal iReadWrite 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

_lopen = ctypes.windll.kernel32._lopen
_lopen.restype = ctypes.c_int
_lopen.argtypes = [
    wintypes.LPCSTR,  # lpPathName : LPCSTR
    ctypes.c_int,  # iReadWrite : INT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
_lopen = Fiddle::Function.new(
  lib['_lopen'],
  [
    Fiddle::TYPE_VOIDP,  # lpPathName : LPCSTR
    Fiddle::TYPE_INT,  # iReadWrite : INT
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn _lopen(
        lpPathName: *const u8,  // LPCSTR
        iReadWrite: i32  // INT
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll")]
public static extern int _lopen([MarshalAs(UnmanagedType.LPStr)] string lpPathName, int iReadWrite);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32__lopen' -Namespace Win32 -PassThru
# $api::_lopen(lpPathName, iReadWrite)

#uselib "KERNEL32.dll"
#func global _lopen "_lopen" sptr, sptr
; _lopen lpPathName, iReadWrite   ; 戻り値は stat
; lpPathName : LPCSTR -> "sptr"
; iReadWrite : INT -> "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。

#uselib "KERNEL32.dll"
#cfunc global _lopen "_lopen" str, int
; res = _lopen(lpPathName, iReadWrite)
; lpPathName : LPCSTR -> "str"
; iReadWrite : INT -> "int"

; INT _lopen(LPCSTR lpPathName, INT iReadWrite)
#uselib "KERNEL32.dll"
#cfunc global _lopen "_lopen" str, int
; res = _lopen(lpPathName, iReadWrite)
; lpPathName : LPCSTR -> "str"
; iReadWrite : INT -> "int"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	proc_lopen = kernel32.NewProc("_lopen")
)

// lpPathName (LPCSTR), iReadWrite (INT)
r1, _, err := proc_lopen.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpPathName))),
	uintptr(iReadWrite),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function _lopen(
  lpPathName: PAnsiChar;   // LPCSTR
  iReadWrite: Integer   // INT
): Integer; stdcall;
  external 'KERNEL32.dll' name '_lopen';

result := DllCall("KERNEL32\_lopen"
    , "AStr", lpPathName   ; LPCSTR
    , "Int", iReadWrite   ; INT
    , "Int")   ; return: INT

●_lopen(lpPathName, iReadWrite) = DLL("KERNEL32.dll", "int _lopen(char*, int)")
# 呼び出し: _lopen(lpPathName, iReadWrite)
# lpPathName : LPCSTR -> "char*"
# iReadWrite : INT -> "int"
# 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 "kernel32" fn _lopen(
    lpPathName: [*c]const u8, // LPCSTR
    iReadWrite: i32 // INT
) callconv(std.os.windows.WINAPI) i32;

proc _lopen(
    lpPathName: cstring,  # LPCSTR
    iReadWrite: int32  # INT
): int32 {.importc: "_lopen", stdcall, dynlib: "KERNEL32.dll".}

pragma(lib, "kernel32");
extern(Windows)
int _lopen(
    const(char)* lpPathName,   // LPCSTR
    int iReadWrite   // INT
);

ccall((:_lopen, "KERNEL32.dll"), stdcall, Int32,
      (Cstring, Int32),
      lpPathName, iReadWrite)
# lpPathName : LPCSTR -> Cstring
# iReadWrite : INT -> Int32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t _lopen(
    const char* lpPathName,
    int32_t iReadWrite);
]]
local kernel32 = ffi.load("kernel32")
-- kernel32._lopen(lpPathName, iReadWrite)
-- lpPathName : LPCSTR
-- iReadWrite : INT
-- 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('KERNEL32.dll');
const _lopen = lib.func('__stdcall', '_lopen', 'int32_t', ['str', 'int32_t']);
// _lopen(lpPathName, iReadWrite)
// lpPathName : LPCSTR -> 'str'
// iReadWrite : INT -> 'int32_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("KERNEL32.dll", {
  _lopen: { parameters: ["buffer", "i32"], result: "i32" },
});
// lib.symbols._lopen(lpPathName, iReadWrite)
// lpPathName : LPCSTR -> "buffer"
// iReadWrite : INT -> "i32"
// 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 _lopen(
    const char* lpPathName,
    int32_t iReadWrite);
C, "KERNEL32.dll");
// $ffi->_lopen(lpPathName, iReadWrite);
// lpPathName : LPCSTR
// iReadWrite : INT
// 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 Kernel32 extends StdCallLibrary {
    Kernel32 INSTANCE = Native.load("kernel32", Kernel32.class);
    int _lopen(
        String lpPathName,   // LPCSTR
        int iReadWrite   // INT
    );
}

@[Link("kernel32")]
lib LibKERNEL32
  fun _lopen = _lopen(
    lpPathName : UInt8*,   # LPCSTR
    iReadWrite : Int32   # INT
  ) : 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 _lopenNative = Int32 Function(Pointer<Utf8>, Int32);
typedef _lopenDart = int Function(Pointer<Utf8>, int);
final _lopen = DynamicLibrary.open('KERNEL32.dll')
    .lookupFunction<_lopenNative, _lopenDart>('_lopen');
// lpPathName : LPCSTR -> Pointer<Utf8>
// iReadWrite : INT -> Int32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function _lopen(
  lpPathName: PAnsiChar;   // LPCSTR
  iReadWrite: Integer   // INT
): Integer; stdcall;
  external 'KERNEL32.dll' name '_lopen';

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

foreign import stdcall safe "_lopen"
  c__lopen :: CString -> Int32 -> IO Int32
-- lpPathName : LPCSTR -> CString
-- iReadWrite : INT -> Int32
-- 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 _lopen =
  foreign "_lopen"
    (string @-> int32_t @-> returning int32_t)
(* lpPathName : LPCSTR -> string *)
(* iReadWrite : INT -> int32_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 kernel32 (t "KERNEL32.dll"))
(cffi:use-foreign-library kernel32)

(cffi:defcfun ("_lopen" -lopen :convention :stdcall) :int32
  (lp-path-name :string)   ; LPCSTR
  (i-read-write :int32))   ; INT
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $_lopen = Win32::API::More->new('KERNEL32',
    'int _lopen(LPCSTR lpPathName, int iReadWrite)');
# my $ret = $_lopen->Call($lpPathName, $iReadWrite);
# lpPathName : LPCSTR -> LPCSTR
# iReadWrite : INT -> int
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。