WlanAllocateMemory

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

void* WlanAllocateMemory(
    DWORD dwMemorySize
);

<DllImport("wlanapi.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WlanAllocateMemory(
    dwMemorySize As UInteger   ' DWORD
) As IntPtr
End Function

' dwMemorySize : DWORD
Declare PtrSafe Function WlanAllocateMemory Lib "wlanapi" ( _
    ByVal dwMemorySize 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

WlanAllocateMemory = ctypes.windll.wlanapi.WlanAllocateMemory
WlanAllocateMemory.restype = ctypes.c_void_p
WlanAllocateMemory.argtypes = [
    wintypes.DWORD,  # dwMemorySize : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('wlanapi.dll')
WlanAllocateMemory = Fiddle::Function.new(
  lib['WlanAllocateMemory'],
  [
    -Fiddle::TYPE_INT,  # dwMemorySize : DWORD
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "wlanapi")]
extern "system" {
    fn WlanAllocateMemory(
        dwMemorySize: u32  // DWORD
    ) -> *mut ();
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("wlanapi.dll", SetLastError = true)]
public static extern IntPtr WlanAllocateMemory(uint dwMemorySize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'wlanapi_WlanAllocateMemory' -Namespace Win32 -PassThru
# $api::WlanAllocateMemory(dwMemorySize)

#uselib "wlanapi.dll"
#func global WlanAllocateMemory "WlanAllocateMemory" sptr
; WlanAllocateMemory dwMemorySize   ; 戻り値は stat
; dwMemorySize : DWORD -> "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 "wlanapi.dll"
#cfunc global WlanAllocateMemory "WlanAllocateMemory" int
; res = WlanAllocateMemory(dwMemorySize)
; dwMemorySize : DWORD -> "int"

; void* WlanAllocateMemory(DWORD dwMemorySize)
#uselib "wlanapi.dll"
#cfunc global WlanAllocateMemory "WlanAllocateMemory" int
; res = WlanAllocateMemory(dwMemorySize)
; dwMemorySize : DWORD -> "int"

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

var (
	wlanapi = windows.NewLazySystemDLL("wlanapi.dll")
	procWlanAllocateMemory = wlanapi.NewProc("WlanAllocateMemory")
)

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

function WlanAllocateMemory(
  dwMemorySize: DWORD   // DWORD
): Pointer; stdcall;
  external 'wlanapi.dll' name 'WlanAllocateMemory';

result := DllCall("wlanapi\WlanAllocateMemory"
    , "UInt", dwMemorySize   ; DWORD
    , "Ptr")   ; return: void*

●WlanAllocateMemory(dwMemorySize) = DLL("wlanapi.dll", "void* WlanAllocateMemory(dword)")
# 呼び出し: WlanAllocateMemory(dwMemorySize)
# dwMemorySize : DWORD -> "dword"
# 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 "wlanapi" fn WlanAllocateMemory(
    dwMemorySize: u32 // DWORD
) callconv(std.os.windows.WINAPI) ?*anyopaque;

proc WlanAllocateMemory(
    dwMemorySize: uint32  # DWORD
): pointer {.importc: "WlanAllocateMemory", stdcall, dynlib: "wlanapi.dll".}

pragma(lib, "wlanapi");
extern(Windows)
void* WlanAllocateMemory(
    uint dwMemorySize   // DWORD
);

ccall((:WlanAllocateMemory, "wlanapi.dll"), stdcall, Ptr{Cvoid},
      (UInt32,),
      dwMemorySize)
# dwMemorySize : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
void* WlanAllocateMemory(
    uint32_t dwMemorySize);
]]
local wlanapi = ffi.load("wlanapi")
-- wlanapi.WlanAllocateMemory(dwMemorySize)
-- dwMemorySize : DWORD
-- 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('wlanapi.dll');
const WlanAllocateMemory = lib.func('__stdcall', 'WlanAllocateMemory', 'void *', ['uint32_t']);
// WlanAllocateMemory(dwMemorySize)
// dwMemorySize : DWORD -> 'uint32_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("wlanapi.dll", {
  WlanAllocateMemory: { parameters: ["u32"], result: "pointer" },
});
// lib.symbols.WlanAllocateMemory(dwMemorySize)
// dwMemorySize : DWORD -> "u32"
// 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
void* WlanAllocateMemory(
    uint32_t dwMemorySize);
C, "wlanapi.dll");
// $ffi->WlanAllocateMemory(dwMemorySize);
// dwMemorySize : DWORD
// 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 Wlanapi extends StdCallLibrary {
    Wlanapi INSTANCE = Native.load("wlanapi", Wlanapi.class);
    Pointer WlanAllocateMemory(
        int dwMemorySize   // DWORD
    );
}

@[Link("wlanapi")]
lib Libwlanapi
  fun WlanAllocateMemory = WlanAllocateMemory(
    dwMemorySize : UInt32   # DWORD
  ) : Void*
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 WlanAllocateMemoryNative = Pointer<Void> Function(Uint32);
typedef WlanAllocateMemoryDart = Pointer<Void> Function(int);
final WlanAllocateMemory = DynamicLibrary.open('wlanapi.dll')
    .lookupFunction<WlanAllocateMemoryNative, WlanAllocateMemoryDart>('WlanAllocateMemory');
// dwMemorySize : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function WlanAllocateMemory(
  dwMemorySize: DWORD   // DWORD
): Pointer; stdcall;
  external 'wlanapi.dll' name 'WlanAllocateMemory';

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

foreign import stdcall safe "WlanAllocateMemory"
  c_WlanAllocateMemory :: Word32 -> IO (Ptr ())
-- dwMemorySize : DWORD -> Word32
-- 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 wlanallocatememory =
  foreign "WlanAllocateMemory"
    (uint32_t @-> returning (ptr void))
(* dwMemorySize : DWORD -> uint32_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 wlanapi (t "wlanapi.dll"))
(cffi:use-foreign-library wlanapi)

(cffi:defcfun ("WlanAllocateMemory" wlan-allocate-memory :convention :stdcall) :pointer
  (dw-memory-size :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $WlanAllocateMemory = Win32::API::More->new('wlanapi',
    'LPVOID WlanAllocateMemory(DWORD dwMemorySize)');
# my $ret = $WlanAllocateMemory->Call($dwMemorySize);
# dwMemorySize : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。