ber_alloc_t

// WLDAP32.dll
#include <windows.h>

BerElement* ber_alloc_t(
    INT options
);

<DllImport("WLDAP32.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ber_alloc_t(
    options As Integer   ' INT
) As IntPtr
End Function

' options : INT
Declare PtrSafe Function ber_alloc_t Lib "wldap32" ( _
    ByVal options As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ber_alloc_t = ctypes.cdll.wldap32.ber_alloc_t
ber_alloc_t.restype = ctypes.c_void_p
ber_alloc_t.argtypes = [
    ctypes.c_int,  # options : INT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WLDAP32.dll')
ber_alloc_t = Fiddle::Function.new(
  lib['ber_alloc_t'],
  [
    Fiddle::TYPE_INT,  # options : INT
  ],
  Fiddle::TYPE_VOIDP, Fiddle::Function::CDECL)

#[link(name = "wldap32")]
extern "C" {
    fn ber_alloc_t(
        options: i32  // INT
    ) -> *mut BerElement;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WLDAP32.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr ber_alloc_t(int options);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WLDAP32_ber_alloc_t' -Namespace Win32 -PassThru
# $api::ber_alloc_t(options)

#uselib "WLDAP32.dll"
#func global ber_alloc_t "ber_alloc_t" sptr
; ber_alloc_t options   ; 戻り値は stat
; options : 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 "WLDAP32.dll"
#cfunc global ber_alloc_t "ber_alloc_t" int
; res = ber_alloc_t(options)
; options : INT -> "int"

; BerElement* ber_alloc_t(INT options)
#uselib "WLDAP32.dll"
#cfunc global ber_alloc_t "ber_alloc_t" int
; res = ber_alloc_t(options)
; options : INT -> "int"

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

var (
	wldap32 = windows.NewLazySystemDLL("WLDAP32.dll")
	procber_alloc_t = wldap32.NewProc("ber_alloc_t")
)

// options (INT)
r1, _, err := procber_alloc_t.Call(
	uintptr(options),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BerElement*

function ber_alloc_t(
  options: Integer   // INT
): Pointer; cdecl;
  external 'WLDAP32.dll' name 'ber_alloc_t';

result := DllCall("WLDAP32\ber_alloc_t"
    , "Int", options   ; INT
    , "Cdecl Ptr")   ; return: BerElement*

●ber_alloc_t(options) = DLL("WLDAP32.dll", "void* ber_alloc_t(int)")
# 呼び出し: ber_alloc_t(options)
# options : 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)。
# ※cdecl関数。DLL()宣言はstdcall前提。cdeclは EXEC_PTR(`cdecl`,…) を使用。