多少线程？ [英] How many threads?

问题描述

假设我有一个带有两个独立的System.Windows.Forms.Timer计时器的Windows窗体应用程序，它们的Tick方法具有以下代码：

Let's say I have a Windows Forms application with two independent System.Windows.Forms.Timer timers, and their Tick methods have the following code:

    Private Sub timer1_Tick(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles timer1.Tick
        Dim pe1 As Timer1Delegate = New Timer1Delegate(AddressOf ProcessTimer1)
        pe1.BeginInvoke(New AsyncCallback(AddressOf Timer1Complete), Nothing)
    End Sub

    Private Sub timer2_Tick(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles timer2.Tick
        Dim pe2 As Timer2Delegate = New Timer2Delegate(AddressOf ProcessTimer2)
        pe2.BeginInvoke(New AsyncCallback(AddressOf Timer2Complete), Nothing)
    End Sub

我相信TICK方法将在GUI线程上处理。对吗？$

I believe that the TICK methods will be handled on the GUI thread. Right?

ProcessTimer1（）方法和ProcessTimer2（）方法是否在两个不同的/独立的线程上运行？

Do the ProcessTimer1() method and ProcessTimer2() method run on two different/independent threads?

推荐答案

您好，

>> 我相信TICK方法将在GUI线程上处理。对吗？

是的，timer_Tick事件不会创建新线程。

Yes, the timer_Tick event do not create a new thread.

>> ProcessTimer1（）方法和ProcessTimer2（）方法是否在两个不同/独立的线程上运行？

简短的回答是否定，正如Kenan所说的
此主题：

The short answer is No, as Kenan said in this thread:

BeginInvoke会将操作发布到与表单相同的线程上的消息泵的消息队列中，它不会创建新线程。

有关BeginInvoke的更多详细信息，请检查：

For more details about BeginInvoke, please check:

BeginInvoke有什么用？

问候，

Stanly

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