了解Application.DoEvents [英] Understanding Application.DoEvents

问题描述

我想了解Application.DoEvents调用的后果。

它是否会创建一个新线程？

谢谢

Hi,

I''d like to understand consequences of Application.DoEvents call.
Does it create a new thread?
Thank you

推荐答案

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我想了解应用程序的后果。 DoEvents调用。
是否会创建一个新线程？

谢谢

Hi,

I''d like to understand consequences of Application.DoEvents call.
Does it create a new thread?
Thank you

不，它不会创建一个新的线程，它''可能''在当前线程上运行一个模态消息循环

（peekmessage / getmessage / dispatchmessage stuff）。


''可能' '这里意味着 - 在某些条件下 - 如窗口句柄

与线程相关联，并运行交互式会话。


Willy。

No, it doesn''t create a new thread, it ''possibly'' runs a modal message loop
(peekmessage/getmessage/dispatchmessage stuff) on the current thread.

''possibly'' here means- under certain conditions- like a window handle
associated with the thread, and running an interactive session.

Willy.

" Willy Denoyette [MVP]" <无线************* @ pandora.be>写道：

"Willy Denoyette [MVP]" <wi*************@pandora.be> writes:

" bazad" <无**** @ noreply.not>在消息中写道
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"bazad" <no****@noreply.not> wrote in message
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我想了解Application.DoEvents调用的后果。<它是否会创建一个新线程？

谢谢

Hi,

I''d like to understand consequences of Application.DoEvents call.
Does it create a new thread?
Thank you

不，它没有创建新线程，它可能''在当前线程上运行模态消息循环
（peekmessage / getmessage / dispatchmessage stuff）。

''可能''这里意味着 - 在某些条件下 - 如窗口句柄
Willy。

No, it doesn''t create a new thread, it ''possibly'' runs a modal message loop
(peekmessage/getmessage/dispatchmessage stuff) on the current thread.

''possibly'' here means- under certain conditions- like a window handle
associated with the thread, and running an interactive session.

Willy.

这是否意味着用户可以在主UI上点击菜单项线程

忙吗？

Does this mean that user can click on menu items while main UI thread
is busy?

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" Willy Denoyette [MVP]" <无线************* @ pandora.be>写道：

"Willy Denoyette [MVP]" <wi*************@pandora.be> writes:

" bazad" <无**** @ noreply.not>在消息中写道
新闻：1099593932.4+jIsAHupOrTgThYXFT72g@teranews ...

"bazad" <no****@noreply.not> wrote in message
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>
>

> Hi,
>

这是否意味着用户可以在主UI线程忙碌时点击菜单项？

Does this mean that user can click on menu items while main UI thread
is busy?

我猜你在隐藏这个问题背后的东西:-)。

主UI线程运行自己的消息循环，所以调用DoEvents不是

需要具有响应式UI。如果用户界面没有响应，那么对于一个被阻塞的等待线程，这是一个

指示，所以在你的代码中包含DoEvents

因为赢了而没有帮助执行。


威利。

I guess you are hiding something behind this question :-).
The main UI thread runs his own message loop, so calling DoEvents is not
needed to have a responsive UI. If the UI is not responsive, it''s an
indication for a blocked waiting thread, so including DoEvents in your code
won''t help as it won''t execute.

Willy.

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