WSASetEvent

関数

イベントオブジェクトの状態をシグナルにする。

DLLWS2_32.dll呼出規約winapiSetLastErrorあり対応OSWindows 8.1 以降

シグネチャ

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

BOOL WSASetEvent(
    WSAEVENT hEvent
);

パラメーター

名前	型	方向
hEvent	WSAEVENT	in

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL WSASetEvent(
    WSAEVENT hEvent
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("WS2_32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool WSASetEvent(
    IntPtr hEvent   // WSAEVENT
);

<DllImport("WS2_32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WSASetEvent(
    hEvent As IntPtr   ' WSAEVENT
) As Boolean
End Function

' hEvent : WSAEVENT
Declare PtrSafe Function WSASetEvent Lib "ws2_32" ( _
    ByVal hEvent 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

WSASetEvent = ctypes.windll.ws2_32.WSASetEvent
WSASetEvent.restype = wintypes.BOOL
WSASetEvent.argtypes = [
    ctypes.c_ssize_t,  # hEvent : WSAEVENT
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WS2_32.dll')
WSASetEvent = Fiddle::Function.new(
  lib['WSASetEvent'],
  [
    Fiddle::TYPE_INTPTR_T,  # hEvent : WSAEVENT
  ],
  Fiddle::TYPE_INT)

#[link(name = "ws2_32")]
extern "system" {
    fn WSASetEvent(
        hEvent: isize  // WSAEVENT
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("WS2_32.dll", SetLastError = true)]
public static extern bool WSASetEvent(IntPtr hEvent);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WS2_32_WSASetEvent' -Namespace Win32 -PassThru
# $api::WSASetEvent(hEvent)

#uselib "WS2_32.dll"
#func global WSASetEvent "WSASetEvent" sptr
; WSASetEvent hEvent   ; 戻り値は stat
; hEvent : WSAEVENT -> "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 "WS2_32.dll"
#cfunc global WSASetEvent "WSASetEvent" sptr
; res = WSASetEvent(hEvent)
; hEvent : WSAEVENT -> "sptr"

; BOOL WSASetEvent(WSAEVENT hEvent)
#uselib "WS2_32.dll"
#cfunc global WSASetEvent "WSASetEvent" intptr
; res = WSASetEvent(hEvent)
; hEvent : WSAEVENT -> "intptr"

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

var (
	ws2_32 = windows.NewLazySystemDLL("WS2_32.dll")
	procWSASetEvent = ws2_32.NewProc("WSASetEvent")
)

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

function WSASetEvent(
  hEvent: NativeInt   // WSAEVENT
): BOOL; stdcall;
  external 'WS2_32.dll' name 'WSASetEvent';

result := DllCall("WS2_32\WSASetEvent"
    , "Ptr", hEvent   ; WSAEVENT
    , "Int")   ; return: BOOL

●WSASetEvent(hEvent) = DLL("WS2_32.dll", "bool WSASetEvent(int)")
# 呼び出し: WSASetEvent(hEvent)
# hEvent : WSAEVENT -> "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)。