WSAEnumNetworkEvents

// WS2_32.dll
#include <windows.h>

INT WSAEnumNetworkEvents(
    SOCKET s,
    WSAEVENT hEventObject,
    WSANETWORKEVENTS* lpNetworkEvents
);

<DllImport("WS2_32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WSAEnumNetworkEvents(
    s As UIntPtr,   ' SOCKET
    hEventObject As IntPtr,   ' WSAEVENT
    lpNetworkEvents As IntPtr   ' WSANETWORKEVENTS* out
) As Integer
End Function

' s : SOCKET
' hEventObject : WSAEVENT
' lpNetworkEvents : WSANETWORKEVENTS* out
Declare PtrSafe Function WSAEnumNetworkEvents Lib "ws2_32" ( _
    ByVal s As LongPtr, _
    ByVal hEventObject As LongPtr, _
    ByVal lpNetworkEvents 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

WSAEnumNetworkEvents = ctypes.windll.ws2_32.WSAEnumNetworkEvents
WSAEnumNetworkEvents.restype = ctypes.c_int
WSAEnumNetworkEvents.argtypes = [
    ctypes.c_size_t,  # s : SOCKET
    ctypes.c_ssize_t,  # hEventObject : WSAEVENT
    ctypes.c_void_p,  # lpNetworkEvents : WSANETWORKEVENTS* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WS2_32.dll')
WSAEnumNetworkEvents = Fiddle::Function.new(
  lib['WSAEnumNetworkEvents'],
  [
    Fiddle::TYPE_UINTPTR_T,  # s : SOCKET
    Fiddle::TYPE_INTPTR_T,  # hEventObject : WSAEVENT
    Fiddle::TYPE_VOIDP,  # lpNetworkEvents : WSANETWORKEVENTS* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "ws2_32")]
extern "system" {
    fn WSAEnumNetworkEvents(
        s: usize,  // SOCKET
        hEventObject: isize,  // WSAEVENT
        lpNetworkEvents: *mut WSANETWORKEVENTS  // WSANETWORKEVENTS* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WS2_32.dll", SetLastError = true)]
public static extern int WSAEnumNetworkEvents(UIntPtr s, IntPtr hEventObject, IntPtr lpNetworkEvents);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WS2_32_WSAEnumNetworkEvents' -Namespace Win32 -PassThru
# $api::WSAEnumNetworkEvents(s, hEventObject, lpNetworkEvents)

#uselib "WS2_32.dll"
#func global WSAEnumNetworkEvents "WSAEnumNetworkEvents" sptr, sptr, sptr
; WSAEnumNetworkEvents s, hEventObject, varptr(lpNetworkEvents)   ; 戻り値は stat
; s : SOCKET -> "sptr"
; hEventObject : WSAEVENT -> "sptr"
; lpNetworkEvents : WSANETWORKEVENTS* 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 (
	ws2_32 = windows.NewLazySystemDLL("WS2_32.dll")
	procWSAEnumNetworkEvents = ws2_32.NewProc("WSAEnumNetworkEvents")
)

// s (SOCKET), hEventObject (WSAEVENT), lpNetworkEvents (WSANETWORKEVENTS* out)
r1, _, err := procWSAEnumNetworkEvents.Call(
	uintptr(s),
	uintptr(hEventObject),
	uintptr(lpNetworkEvents),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function WSAEnumNetworkEvents(
  s: NativeUInt;   // SOCKET
  hEventObject: NativeInt;   // WSAEVENT
  lpNetworkEvents: Pointer   // WSANETWORKEVENTS* out
): Integer; stdcall;
  external 'WS2_32.dll' name 'WSAEnumNetworkEvents';

result := DllCall("WS2_32\WSAEnumNetworkEvents"
    , "UPtr", s   ; SOCKET
    , "Ptr", hEventObject   ; WSAEVENT
    , "Ptr", lpNetworkEvents   ; WSANETWORKEVENTS* out
    , "Int")   ; return: INT

●WSAEnumNetworkEvents(s, hEventObject, lpNetworkEvents) = DLL("WS2_32.dll", "int WSAEnumNetworkEvents(int, int, void*)")
# 呼び出し: WSAEnumNetworkEvents(s, hEventObject, lpNetworkEvents)
# s : SOCKET -> "int"
# hEventObject : WSAEVENT -> "int"
# lpNetworkEvents : WSANETWORKEVENTS* 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 "ws2_32" fn WSAEnumNetworkEvents(
    s: usize, // SOCKET
    hEventObject: isize, // WSAEVENT
    lpNetworkEvents: [*c]WSANETWORKEVENTS // WSANETWORKEVENTS* out
) callconv(std.os.windows.WINAPI) i32;

proc WSAEnumNetworkEvents(
    s: uint,  # SOCKET
    hEventObject: int,  # WSAEVENT
    lpNetworkEvents: ptr WSANETWORKEVENTS  # WSANETWORKEVENTS* out
): int32 {.importc: "WSAEnumNetworkEvents", stdcall, dynlib: "WS2_32.dll".}

pragma(lib, "ws2_32");
extern(Windows)
int WSAEnumNetworkEvents(
    size_t s,   // SOCKET
    ptrdiff_t hEventObject,   // WSAEVENT
    WSANETWORKEVENTS* lpNetworkEvents   // WSANETWORKEVENTS* out
);

ccall((:WSAEnumNetworkEvents, "WS2_32.dll"), stdcall, Int32,
      (Csize_t, Int, Ptr{WSANETWORKEVENTS}),
      s, hEventObject, lpNetworkEvents)
# s : SOCKET -> Csize_t
# hEventObject : WSAEVENT -> Int
# lpNetworkEvents : WSANETWORKEVENTS* out -> Ptr{WSANETWORKEVENTS}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t WSAEnumNetworkEvents(
    uintptr_t s,
    intptr_t hEventObject,
    void* lpNetworkEvents);
]]
local ws2_32 = ffi.load("ws2_32")
-- ws2_32.WSAEnumNetworkEvents(s, hEventObject, lpNetworkEvents)
-- s : SOCKET
-- hEventObject : WSAEVENT
-- lpNetworkEvents : WSANETWORKEVENTS* 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('WS2_32.dll');
const WSAEnumNetworkEvents = lib.func('__stdcall', 'WSAEnumNetworkEvents', 'int32_t', ['uintptr_t', 'intptr_t', 'void *']);
// WSAEnumNetworkEvents(s, hEventObject, lpNetworkEvents)
// s : SOCKET -> 'uintptr_t'
// hEventObject : WSAEVENT -> 'intptr_t'
// lpNetworkEvents : WSANETWORKEVENTS* 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("WS2_32.dll", {
  WSAEnumNetworkEvents: { parameters: ["usize", "isize", "pointer"], result: "i32" },
});
// lib.symbols.WSAEnumNetworkEvents(s, hEventObject, lpNetworkEvents)
// s : SOCKET -> "usize"
// hEventObject : WSAEVENT -> "isize"
// lpNetworkEvents : WSANETWORKEVENTS* 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
int32_t WSAEnumNetworkEvents(
    size_t s,
    intptr_t hEventObject,
    void* lpNetworkEvents);
C, "WS2_32.dll");
// $ffi->WSAEnumNetworkEvents(s, hEventObject, lpNetworkEvents);
// s : SOCKET
// hEventObject : WSAEVENT
// lpNetworkEvents : WSANETWORKEVENTS* 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 Ws2_32 extends StdCallLibrary {
    Ws2_32 INSTANCE = Native.load("ws2_32", Ws2_32.class);
    int WSAEnumNetworkEvents(
        long s,   // SOCKET
        long hEventObject,   // WSAEVENT
        Pointer lpNetworkEvents   // WSANETWORKEVENTS* out
    );
}

@[Link("ws2_32")]
lib LibWS2_32
  fun WSAEnumNetworkEvents = WSAEnumNetworkEvents(
    s : LibC::SizeT,   # SOCKET
    hEventObject : LibC::SSizeT,   # WSAEVENT
    lpNetworkEvents : WSANETWORKEVENTS*   # WSANETWORKEVENTS* out
  ) : 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 WSAEnumNetworkEventsNative = Int32 Function(UintPtr, IntPtr, Pointer<Void>);
typedef WSAEnumNetworkEventsDart = int Function(int, int, Pointer<Void>);
final WSAEnumNetworkEvents = DynamicLibrary.open('WS2_32.dll')
    .lookupFunction<WSAEnumNetworkEventsNative, WSAEnumNetworkEventsDart>('WSAEnumNetworkEvents');
// s : SOCKET -> UintPtr
// hEventObject : WSAEVENT -> IntPtr
// lpNetworkEvents : WSANETWORKEVENTS* out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function WSAEnumNetworkEvents(
  s: NativeUInt;   // SOCKET
  hEventObject: NativeInt;   // WSAEVENT
  lpNetworkEvents: Pointer   // WSANETWORKEVENTS* out
): Integer; stdcall;
  external 'WS2_32.dll' name 'WSAEnumNetworkEvents';

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

foreign import stdcall safe "WSAEnumNetworkEvents"
  c_WSAEnumNetworkEvents :: CUIntPtr -> CIntPtr -> Ptr () -> IO Int32
-- s : SOCKET -> CUIntPtr
-- hEventObject : WSAEVENT -> CIntPtr
-- lpNetworkEvents : WSANETWORKEVENTS* 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 wsaenumnetworkevents =
  foreign "WSAEnumNetworkEvents"
    (size_t @-> intptr_t @-> (ptr void) @-> returning int32_t)
(* s : SOCKET -> size_t *)
(* hEventObject : WSAEVENT -> intptr_t *)
(* lpNetworkEvents : WSANETWORKEVENTS* 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 ws2_32 (t "WS2_32.dll"))
(cffi:use-foreign-library ws2_32)

(cffi:defcfun ("WSAEnumNetworkEvents" wsaenum-network-events :convention :stdcall) :int32
  (s :uint64)   ; SOCKET
  (h-event-object :int64)   ; WSAEVENT
  (lp-network-events :pointer))   ; WSANETWORKEVENTS* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $WSAEnumNetworkEvents = Win32::API::More->new('WS2_32',
    'int WSAEnumNetworkEvents(WPARAM s, LPARAM hEventObject, LPVOID lpNetworkEvents)');
# my $ret = $WSAEnumNetworkEvents->Call($s, $hEventObject, $lpNetworkEvents);
# s : SOCKET -> WPARAM
# hEventObject : WSAEVENT -> LPARAM
# lpNetworkEvents : WSANETWORKEVENTS* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。