WSACreateEvent

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

WSAEVENT WSACreateEvent(void);

<DllImport("WS2_32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WSACreateEvent() As IntPtr
End Function

Declare PtrSafe Function WSACreateEvent Lib "ws2_32" () As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

WSACreateEvent = ctypes.windll.ws2_32.WSACreateEvent
WSACreateEvent.restype = ctypes.c_ssize_t
WSACreateEvent.argtypes = []
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WS2_32.dll')
WSACreateEvent = Fiddle::Function.new(
  lib['WSACreateEvent'],
  [],
  Fiddle::TYPE_INTPTR_T)

#[link(name = "ws2_32")]
extern "system" {
    fn WSACreateEvent() -> isize;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WS2_32.dll", SetLastError = true)]
public static extern IntPtr WSACreateEvent();
"@
$api = Add-Type -MemberDefinition $sig -Name 'WS2_32_WSACreateEvent' -Namespace Win32 -PassThru
# $api::WSACreateEvent()

#uselib "WS2_32.dll"
#func global WSACreateEvent "WSACreateEvent"
; WSACreateEvent   ; 戻り値は stat
; ※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 "WS2_32.dll"
#cfunc global WSACreateEvent "WSACreateEvent"
; res = WSACreateEvent()

; WSAEVENT WSACreateEvent()
#uselib "WS2_32.dll"
#cfunc global WSACreateEvent "WSACreateEvent"
; res = WSACreateEvent()

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

var (
	ws2_32 = windows.NewLazySystemDLL("WS2_32.dll")
	procWSACreateEvent = ws2_32.NewProc("WSACreateEvent")
)

r1, _, err := procWSACreateEvent.Call()
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WSAEVENT

function WSACreateEvent: NativeInt; stdcall;
  external 'WS2_32.dll' name 'WSACreateEvent';

result := DllCall("WS2_32\WSACreateEvent", "Ptr")

●WSACreateEvent() = DLL("WS2_32.dll", "int WSACreateEvent()")
# 呼び出し: WSACreateEvent()
# 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)。