ldap_first_attribute

// WLDAP32.dll  (ANSI / -A)
#include <windows.h>

LPSTR ldap_first_attribute(
    LDAP* ld,
    LDAPMessage* entry,
    BerElement** ptr
);

<DllImport("WLDAP32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ldap_first_attribute(
    ld As IntPtr,   ' LDAP* in/out
    entry As IntPtr,   ' LDAPMessage* in/out
    ptr As IntPtr   ' BerElement** in/out
) As IntPtr
End Function

' ld : LDAP* in/out
' entry : LDAPMessage* in/out
' ptr : BerElement** in/out
Declare PtrSafe Function ldap_first_attribute Lib "wldap32" ( _
    ByVal ld As LongPtr, _
    ByVal entry As LongPtr, _
    ByVal ptr As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ldap_first_attribute = ctypes.cdll.wldap32.ldap_first_attribute
ldap_first_attribute.restype = wintypes.LPSTR
ldap_first_attribute.argtypes = [
    ctypes.c_void_p,  # ld : LDAP* in/out
    ctypes.c_void_p,  # entry : LDAPMessage* in/out
    ctypes.c_void_p,  # ptr : BerElement** in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WLDAP32.dll')
ldap_first_attribute = Fiddle::Function.new(
  lib['ldap_first_attribute'],
  [
    Fiddle::TYPE_VOIDP,  # ld : LDAP* in/out
    Fiddle::TYPE_VOIDP,  # entry : LDAPMessage* in/out
    Fiddle::TYPE_VOIDP,  # ptr : BerElement** in/out
  ],
  Fiddle::TYPE_VOIDP, Fiddle::Function::CDECL)

#[link(name = "wldap32")]
extern "C" {
    fn ldap_first_attribute(
        ld: *mut LDAP,  // LDAP* in/out
        entry: *mut LDAPMessage,  // LDAPMessage* in/out
        ptr: *mut *mut BerElement  // BerElement** in/out
    ) -> *mut u8;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WLDAP32.dll", CharSet = CharSet.Ansi, CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr ldap_first_attribute(IntPtr ld, IntPtr entry, IntPtr ptr);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WLDAP32_ldap_first_attribute' -Namespace Win32 -PassThru
# $api::ldap_first_attribute(ld, entry, ptr)

#uselib "WLDAP32.dll"
#func global ldap_first_attribute "ldap_first_attribute" sptr, sptr, sptr
; ldap_first_attribute varptr(ld), varptr(entry), varptr(ptr)   ; 戻り値は stat
; ld : LDAP* in/out -> "sptr"
; entry : LDAPMessage* in/out -> "sptr"
; ptr : BerElement** 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 (
	wldap32 = windows.NewLazySystemDLL("WLDAP32.dll")
	procldap_first_attribute = wldap32.NewProc("ldap_first_attribute")
)

// ld (LDAP* in/out), entry (LDAPMessage* in/out), ptr (BerElement** in/out)
r1, _, err := procldap_first_attribute.Call(
	uintptr(ld),
	uintptr(entry),
	uintptr(ptr),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // LPSTR

function ldap_first_attribute(
  ld: Pointer;   // LDAP* in/out
  entry: Pointer;   // LDAPMessage* in/out
  ptr: Pointer   // BerElement** in/out
): PAnsiChar; cdecl;
  external 'WLDAP32.dll' name 'ldap_first_attribute';

result := DllCall("WLDAP32\ldap_first_attribute"
    , "Ptr", ld   ; LDAP* in/out
    , "Ptr", entry   ; LDAPMessage* in/out
    , "Ptr", ptr   ; BerElement** in/out
    , "Cdecl Ptr")   ; return: LPSTR

●ldap_first_attribute(ld, entry, ptr) = DLL("WLDAP32.dll", "char* ldap_first_attribute(void*, void*, void*)")
# 呼び出し: ldap_first_attribute(ld, entry, ptr)
# ld : LDAP* in/out -> "void*"
# entry : LDAPMessage* in/out -> "void*"
# ptr : BerElement** 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)。
# ※cdecl関数。DLL()宣言はstdcall前提。cdeclは EXEC_PTR(`cdecl`,…) を使用。

const std = @import("std");

extern "wldap32" fn ldap_first_attribute(
    ld: [*c]LDAP, // LDAP* in/out
    entry: [*c]LDAPMessage, // LDAPMessage* in/out
    ptr: [*c][*c]BerElement // BerElement** in/out
) callconv(.c) [*c]const u8;

proc ldap_first_attribute(
    ld: ptr LDAP,  # LDAP* in/out
    entry: ptr LDAPMessage,  # LDAPMessage* in/out
    `ptr`: ptr BerElement  # BerElement** in/out
): cstring {.importc: "ldap_first_attribute", cdecl, dynlib: "WLDAP32.dll".}

pragma(lib, "wldap32");
extern(C)
const(char)* ldap_first_attribute(
    LDAP* ld,   // LDAP* in/out
    LDAPMessage* entry,   // LDAPMessage* in/out
    BerElement** ptr   // BerElement** in/out
);

ccall((:ldap_first_attribute, "WLDAP32.dll"), Cstring,
      (Ptr{LDAP}, Ptr{LDAPMessage}, Ptr{BerElement}),
      ld, entry, ptr)
# ld : LDAP* in/out -> Ptr{LDAP}
# entry : LDAPMessage* in/out -> Ptr{LDAPMessage}
# ptr : BerElement** in/out -> Ptr{BerElement}

local ffi = require("ffi")
ffi.cdef[[
const char* ldap_first_attribute(
    void* ld,
    void* entry,
    void* ptr);
]]
local wldap32 = ffi.load("wldap32")
-- wldap32.ldap_first_attribute(ld, entry, ptr)
-- ld : LDAP* in/out
-- entry : LDAPMessage* in/out
-- ptr : BerElement** 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('WLDAP32.dll');
const ldap_first_attribute = lib.func('__cdecl', 'ldap_first_attribute', 'void *', ['void *', 'void *', 'void *']);
// ldap_first_attribute(ld, entry, ptr)
// ld : LDAP* in/out -> 'void *'
// entry : LDAPMessage* in/out -> 'void *'
// ptr : BerElement** in/out -> 'void *'
// 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("WLDAP32.dll", {
  ldap_first_attribute: { parameters: ["pointer", "pointer", "pointer"], result: "pointer" },
});
// lib.symbols.ldap_first_attribute(ld, entry, ptr)
// ld : LDAP* in/out -> "pointer"
// entry : LDAPMessage* in/out -> "pointer"
// ptr : BerElement** in/out -> "pointer"
// 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
const char* ldap_first_attribute(
    void* ld,
    void* entry,
    void* ptr);
C, "WLDAP32.dll");
// $ffi->ldap_first_attribute(ld, entry, ptr);
// ld : LDAP* in/out
// entry : LDAPMessage* in/out
// ptr : BerElement** 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。

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

public interface Wldap32 extends Library {
    Wldap32 INSTANCE = Native.load("wldap32", Wldap32.class, W32APIOptions.ASCII_OPTIONS);
    Pointer ldap_first_attribute(
        Pointer ld,   // LDAP* in/out
        Pointer entry,   // LDAPMessage* in/out
        Pointer ptr   // BerElement** in/out
    );
}

@[Link("wldap32")]
lib LibWLDAP32
  fun ldap_first_attribute = ldap_first_attribute(
    ld : LDAP*,   # LDAP* in/out
    entry : LDAPMessage*,   # LDAPMessage* in/out
    ptr : BerElement**   # BerElement** in/out
  ) : UInt8*
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。

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

typedef ldap_first_attributeNative = Pointer<Utf8> Function(Pointer<Void>, Pointer<Void>, Pointer<Void>);
typedef ldap_first_attributeDart = Pointer<Utf8> Function(Pointer<Void>, Pointer<Void>, Pointer<Void>);
final ldap_first_attribute = DynamicLibrary.open('WLDAP32.dll')
    .lookupFunction<ldap_first_attributeNative, ldap_first_attributeDart>('ldap_first_attribute');
// ld : LDAP* in/out -> Pointer<Void>
// entry : LDAPMessage* in/out -> Pointer<Void>
// ptr : BerElement** in/out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function ldap_first_attribute(
  ld: Pointer;   // LDAP* in/out
  entry: Pointer;   // LDAPMessage* in/out
  ptr: Pointer   // BerElement** in/out
): PAnsiChar; cdecl;
  external 'WLDAP32.dll' name 'ldap_first_attribute';

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

foreign import ccall safe "ldap_first_attribute"
  c_ldap_first_attribute :: Ptr () -> Ptr () -> Ptr () -> IO CString
-- ld : LDAP* in/out -> Ptr ()
-- entry : LDAPMessage* in/out -> Ptr ()
-- ptr : BerElement** in/out -> Ptr ()
-- 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 ldap_first_attribute =
  foreign "ldap_first_attribute"
    ((ptr void) @-> (ptr void) @-> (ptr void) @-> returning string)
(* ld : LDAP* in/out -> (ptr void) *)
(* entry : LDAPMessage* in/out -> (ptr void) *)
(* ptr : BerElement** in/out -> (ptr void) *)
(* 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 wldap32 (t "WLDAP32.dll"))
(cffi:use-foreign-library wldap32)

(cffi:defcfun ("ldap_first_attribute" ldap-first-attribute :convention :cdecl) :string
  (ld :pointer)   ; LDAP* in/out
  (entry :pointer)   ; LDAPMessage* in/out
  (ptr :pointer))   ; BerElement** in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $ldap_first_attribute = Win32::API::More->new('WLDAP32',
    'LPSTR ldap_first_attribute(LPVOID ld, LPVOID entry, LPVOID ptr)');
# my $ret = $ldap_first_attribute->Call($ld, $entry, $ptr);
# ld : LDAP* in/out -> LPVOID
# entry : LDAPMessage* in/out -> LPVOID
# ptr : BerElement** 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。