在F#中，谁泵送消息队列? [英] In F#, who pumps the message queue?

问题描述

在F#中，如果我做类似的事情 let form = new Form(Text ="MyForm") 并在FSI中运行它，该表单将正常显示和更新，甚至接收消息.但是，谁在泵送消息队列?这里没有Application.Run调用.我有点困惑.

In F# if I do something like let form = new Form(Text = "MyForm") and run it in FSI, the form will display and update normally, and even recieve messages. However, who is pumping the message queue? There is no Application.Run call here. I'm a little confused.

推荐答案

正如ildjarn所说，F#Interactive实现了自己的消息循环.有趣的是，消息循环未在F#Interactive中进行硬编码，因此您可以对其进行更改.这是非常有用的，因为默认的是基于Windows窗体的，但是您可能还要使用其他GUI框架.

As ildjarn says, F# Interactive implements its own message loop. Interestingly, the message loop is not hardcoded in F# Interactive, so you can change it. This is quite useful, because the default one is based on Windows Forms, but there are other GUI frameworks you may want to use.

为此，您需要实现IEventLoop接口，然后将实例分配给fsi.EventLoop属性.有关更多信息，请参见:

To do that, you would need to implement IEventLoop interface and then assign your instance to the fsi.EventLoop property. For more information see:

• IEventLoop界面的源代码
• 使用WinForms的默认实现
• 我为Gtk编写的简单实现#

• The source code for IEventLoop interface
• The default implementation that uses WinForms
• A simple implementation that I wrote for Gtk#

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