NetApiBufferAllocate

// NETAPI32.dll
#include <windows.h>

DWORD NetApiBufferAllocate(
    DWORD ByteCount,
    void** Buffer
);

<DllImport("NETAPI32.dll", ExactSpelling:=True)>
Public Shared Function NetApiBufferAllocate(
    ByteCount As UInteger,   ' DWORD
    Buffer As IntPtr   ' void** out
) As UInteger
End Function

' ByteCount : DWORD
' Buffer : void** out
Declare PtrSafe Function NetApiBufferAllocate Lib "netapi32" ( _
    ByVal ByteCount As Long, _
    ByVal Buffer 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

NetApiBufferAllocate = ctypes.windll.netapi32.NetApiBufferAllocate
NetApiBufferAllocate.restype = wintypes.DWORD
NetApiBufferAllocate.argtypes = [
    wintypes.DWORD,  # ByteCount : DWORD
    ctypes.c_void_p,  # Buffer : void** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('NETAPI32.dll')
NetApiBufferAllocate = Fiddle::Function.new(
  lib['NetApiBufferAllocate'],
  [
    -Fiddle::TYPE_INT,  # ByteCount : DWORD
    Fiddle::TYPE_VOIDP,  # Buffer : void** out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "netapi32")]
extern "system" {
    fn NetApiBufferAllocate(
        ByteCount: u32,  // DWORD
        Buffer: *mut *mut ()  // void** out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("NETAPI32.dll")]
public static extern uint NetApiBufferAllocate(uint ByteCount, IntPtr Buffer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'NETAPI32_NetApiBufferAllocate' -Namespace Win32 -PassThru
# $api::NetApiBufferAllocate(ByteCount, Buffer)

#uselib "NETAPI32.dll"
#func global NetApiBufferAllocate "NetApiBufferAllocate" sptr, sptr
; NetApiBufferAllocate ByteCount, Buffer   ; 戻り値は stat
; ByteCount : DWORD -> "sptr"
; Buffer : void** 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。

#uselib "NETAPI32.dll"
#cfunc global NetApiBufferAllocate "NetApiBufferAllocate" int, sptr
; res = NetApiBufferAllocate(ByteCount, Buffer)
; ByteCount : DWORD -> "int"
; Buffer : void** out -> "sptr"

; DWORD NetApiBufferAllocate(DWORD ByteCount, void** Buffer)
#uselib "NETAPI32.dll"
#cfunc global NetApiBufferAllocate "NetApiBufferAllocate" int, intptr
; res = NetApiBufferAllocate(ByteCount, Buffer)
; ByteCount : DWORD -> "int"
; Buffer : void** out -> "intptr"

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

var (
	netapi32 = windows.NewLazySystemDLL("NETAPI32.dll")
	procNetApiBufferAllocate = netapi32.NewProc("NetApiBufferAllocate")
)

// ByteCount (DWORD), Buffer (void** out)
r1, _, err := procNetApiBufferAllocate.Call(
	uintptr(ByteCount),
	uintptr(Buffer),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function NetApiBufferAllocate(
  ByteCount: DWORD;   // DWORD
  Buffer: Pointer   // void** out
): DWORD; stdcall;
  external 'NETAPI32.dll' name 'NetApiBufferAllocate';

result := DllCall("NETAPI32\NetApiBufferAllocate"
    , "UInt", ByteCount   ; DWORD
    , "Ptr", Buffer   ; void** out
    , "UInt")   ; return: DWORD

●NetApiBufferAllocate(ByteCount, Buffer) = DLL("NETAPI32.dll", "dword NetApiBufferAllocate(dword, void*)")
# 呼び出し: NetApiBufferAllocate(ByteCount, Buffer)
# ByteCount : DWORD -> "dword"
# Buffer : void** 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 "netapi32" fn NetApiBufferAllocate(
    ByteCount: u32, // DWORD
    Buffer: ?*anyopaque // void** out
) callconv(std.os.windows.WINAPI) u32;

proc NetApiBufferAllocate(
    ByteCount: uint32,  # DWORD
    Buffer: pointer  # void** out
): uint32 {.importc: "NetApiBufferAllocate", stdcall, dynlib: "NETAPI32.dll".}

pragma(lib, "netapi32");
extern(Windows)
uint NetApiBufferAllocate(
    uint ByteCount,   // DWORD
    void** Buffer   // void** out
);

ccall((:NetApiBufferAllocate, "NETAPI32.dll"), stdcall, UInt32,
      (UInt32, Ptr{Cvoid}),
      ByteCount, Buffer)
# ByteCount : DWORD -> UInt32
# Buffer : void** out -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t NetApiBufferAllocate(
    uint32_t ByteCount,
    void** Buffer);
]]
local netapi32 = ffi.load("netapi32")
-- netapi32.NetApiBufferAllocate(ByteCount, Buffer)
-- ByteCount : DWORD
-- Buffer : void** 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('NETAPI32.dll');
const NetApiBufferAllocate = lib.func('__stdcall', 'NetApiBufferAllocate', 'uint32_t', ['uint32_t', 'void *']);
// NetApiBufferAllocate(ByteCount, Buffer)
// ByteCount : DWORD -> 'uint32_t'
// Buffer : void** 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("NETAPI32.dll", {
  NetApiBufferAllocate: { parameters: ["u32", "pointer"], result: "u32" },
});
// lib.symbols.NetApiBufferAllocate(ByteCount, Buffer)
// ByteCount : DWORD -> "u32"
// Buffer : void** 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
uint32_t NetApiBufferAllocate(
    uint32_t ByteCount,
    void** Buffer);
C, "NETAPI32.dll");
// $ffi->NetApiBufferAllocate(ByteCount, Buffer);
// ByteCount : DWORD
// Buffer : void** 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 Netapi32 extends StdCallLibrary {
    Netapi32 INSTANCE = Native.load("netapi32", Netapi32.class);
    int NetApiBufferAllocate(
        int ByteCount,   // DWORD
        Pointer Buffer   // void** out
    );
}

@[Link("netapi32")]
lib LibNETAPI32
  fun NetApiBufferAllocate = NetApiBufferAllocate(
    ByteCount : UInt32,   # DWORD
    Buffer : Void**   # void** out
  ) : UInt32
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 NetApiBufferAllocateNative = Uint32 Function(Uint32, Pointer<Void>);
typedef NetApiBufferAllocateDart = int Function(int, Pointer<Void>);
final NetApiBufferAllocate = DynamicLibrary.open('NETAPI32.dll')
    .lookupFunction<NetApiBufferAllocateNative, NetApiBufferAllocateDart>('NetApiBufferAllocate');
// ByteCount : DWORD -> Uint32
// Buffer : void** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function NetApiBufferAllocate(
  ByteCount: DWORD;   // DWORD
  Buffer: Pointer   // void** out
): DWORD; stdcall;
  external 'NETAPI32.dll' name 'NetApiBufferAllocate';

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

foreign import stdcall safe "NetApiBufferAllocate"
  c_NetApiBufferAllocate :: Word32 -> Ptr () -> IO Word32
-- ByteCount : DWORD -> Word32
-- Buffer : void** 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 netapibufferallocate =
  foreign "NetApiBufferAllocate"
    (uint32_t @-> (ptr void) @-> returning uint32_t)
(* ByteCount : DWORD -> uint32_t *)
(* Buffer : void** 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 netapi32 (t "NETAPI32.dll"))
(cffi:use-foreign-library netapi32)

(cffi:defcfun ("NetApiBufferAllocate" net-api-buffer-allocate :convention :stdcall) :uint32
  (byte-count :uint32)   ; DWORD
  (buffer :pointer))   ; void** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $NetApiBufferAllocate = Win32::API::More->new('NETAPI32',
    'DWORD NetApiBufferAllocate(DWORD ByteCount, LPVOID Buffer)');
# my $ret = $NetApiBufferAllocate->Call($ByteCount, $Buffer);
# ByteCount : DWORD -> DWORD
# Buffer : void** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。