EventArrivedEventHandler 대리자

정의

네임스페이스:

System.Management

어셈블리:

System.Management.dll

패키지:

System.Management v8.0.0

Source:

ManagementEventWatcher.cs

EventArrived 이벤트를 처리할 메서드를 나타냅니다.

public delegate void EventArrivedEventHandler(System::Object ^ sender, EventArrivedEventArgs ^ e);

public delegate void EventArrivedEventHandler(object sender, EventArrivedEventArgs e);

type EventArrivedEventHandler = delegate of obj * EventArrivedEventArgs -> unit

Public Delegate Sub EventArrivedEventHandler(sender As Object, e As EventArrivedEventArgs)

매개 변수

sender

Object

이 메서드를 호출할 개체의 인스턴스입니다.

e

EventArrivedEventArgs

이벤트가 호출된 이유를 지정하는 EventArrivedEventArgs입니다.

예제

다음 비동기 예제에서는 1 초 마다 이벤트를 발생 시키는 WMI 타이머를 설정 하 고 필요 없는 경우를 제거 합니다. 는 ManagementEventWatcher WMI 이벤트가 전달될 때 발생하는 여러 .NET Framework 이벤트를 정의합니다. 대리자는 들어오는 데이터를 처리하기 위해 이러한 이벤트에 연결됩니다.

using System;
using System.Management;

// This example shows asynchronous consumption of events.
// In this example you are listening for timer events.
// The first part of the example sets up the timer.
public class EventWatcherAsync
{
    public EventWatcherAsync()
    {
        // Set up a timer to raise events every 1 second
        //=============================================
        ManagementClass timerClass =
            new ManagementClass("__IntervalTimerInstruction");
        ManagementObject timer = timerClass.CreateInstance();
        timer["TimerId"] = "Timer1";
        timer["IntervalBetweenEvents"] = 1000;
        timer.Put();

        // Set up the event consumer
        //==========================
        // Create event query to receive timer events
        WqlEventQuery query =
            new WqlEventQuery("__TimerEvent",
            "TimerId=\"Timer1\"");

        // Initialize an event watcher and
        // subscribe to timer events
        ManagementEventWatcher watcher =
            new ManagementEventWatcher(query);

        // Set up a listener for events
        watcher.EventArrived +=
            new EventArrivedEventHandler(
            this.HandleEvent);

        // Start listening
        watcher.Start();

        // Do something in the meantime
        System.Threading.Thread.Sleep(10000);

        // Stop listening
        watcher.Stop();
    }

    private void HandleEvent(object sender,
        EventArrivedEventArgs e)
    {
        Console.WriteLine("Event arrived !");
    }

    public static void Main(string[] args)
    {
        // start the event watcher
        EventWatcherAsync eventWatcher = new
            EventWatcherAsync();
    }
}

Imports System.Management

' This example shows asynchronous consumption of events.
' In this example you are listening for timer events.
' The first part of the example sets up the timer.

Public Class EventWatcherAsync

    Public Sub New()
        ' Set up a timer to raise events every 1 second
        '=============================================
        Dim timerClass As New ManagementClass( _
            "__IntervalTimerInstruction")
        Dim timer As ManagementObject = _
            timerClass.CreateInstance()
        timer("TimerId") = "Timer1"
        timer("IntervalBetweenEvents") = 1000
        timer.Put()

        ' Set up the event consumer
        '==========================
        ' Create event query to receive timer events
        Dim query As New WqlEventQuery("__TimerEvent", _
            "TimerId=""Timer1""")

        ' Initialize an event watcher and subscribe to 
        ' events that match this query
        Dim watcher As New ManagementEventWatcher(query)

        ' Set up a listener for events
        AddHandler watcher.EventArrived, _
            AddressOf Me.HandleEvent

        ' Start listening
        watcher.Start()

        ' Do something in the meantime
        System.Threading.Thread.Sleep(10000)

        ' Stop listening
        watcher.Stop()

    End Sub

    Private Sub HandleEvent(ByVal sender As Object, _
        ByVal e As EventArrivedEventArgs)

        Console.WriteLine("Event arrived !")
    End Sub

    Public Overloads Shared Function _
            Main(ByVal args() As String) As Integer

        'start the event watcher
        Dim eventWatcher As New EventWatcherAsync

        Return 0

    End Function

End Class

확장 메서드