Application.Exit需要调用两次

发布于 2024-12-29 00:23:47 字数 1473 浏览 2 评论 0原文

我有一个 Main 方法，它创建一个名为 SysTrayApp 的消息循环：

void Main()
{
    Application.Run(new SysTrayApp());
}

我的 SysTrayApp 类将 ContextMenu 添加到系统托盘图标，然后启动另一个名为 MouseHook 的消息循环。 MouseHook 是一个调用鼠标事件的类。（根据此类建模。）

class SysTrayApp : Form
{           
    public SysTrayApp()
    {
        // Does some GUI work    
        // Then starts another message loop
        Application.Run(new MouseHook());
    }
}

class MouseHook : Form
{           
    public MouseHook()
    {
        // Does some hooking stuff      
    }
}

在SysTrayApp, Application.Exit() 当用户从上下文菜单中选择“退出”选项时调用。问题是我必须调用 Exit 两次（或添加另一个 Application.Exit）才能结束应用程序。这是预料之中的，但是我觉得我处理这件事的方式是错误的。两次调用 Application.Exit() 对我来说似乎是错误的，但我是 C# 世界的新手。 SysTrayApp 和 MouseHook 是否应该合并为一个大类？ MouseHook 似乎也不应该与 Windows.Form 分开。也许 MouseHook 需要位于新线程上？有什么建议吗？

编辑： 哎呀。 MouseHook 没有第三个 Application.Run()

解决方案

我想我想得太多了。正如我所说，仍在探索 C#。但这是有效的：

Main() 中的 Application.Run(new SysTrayApp()); 就是您所需要的。要启动 MouseHook，只需在 SysTrayApp 中执行 MouseHook hook = new MouseHook(); 即可。

感谢@JonSkeet 帮助我理解这一点。你是一台机器！

原文

I have a Main method that creates a message loop called SysTrayApp:

void Main()
{
    Application.Run(new SysTrayApp());
}

My SysTrayApp class adds a ContextMenu to the System Tray icon, then starts another message loop called MouseHook. MouseHook is a class that pinvokes mouse events. (Modeled after this class.)

class SysTrayApp : Form
{           
    public SysTrayApp()
    {
        // Does some GUI work    
        // Then starts another message loop
        Application.Run(new MouseHook());
    }
}

class MouseHook : Form
{           
    public MouseHook()
    {
        // Does some hooking stuff      
    }
}

In SysTrayApp, Application.Exit() is called when the user selects the Exit option from the context menu. The problem is that I have to call Exit twice (or add another Application.Exit) for the application to end. This is expected, but
I feel like I am going about this the wrong way. Calling Application.Exit() twice just seems wrong to me, but I'm new to the C# world. Should SysTrayApp and MouseHook be combined into one big class? MouseHook doesn't seem like it should be apart of Windows.Form either. Maybe MouseHook needs to be on a new thread? Any suggestions?

EDIT: Oops. MouseHook did not have a third Application.Run()

Solution

I guess I was over thinking this. Still exploring C#, like I said. But here is what works:

Application.Run(new SysTrayApp()); in Main() is all you need. To start MouseHook, just do a MouseHook hook = new MouseHook(); in SysTrayApp.

Thanks @JonSkeet for helping me understand this. You are a machine!

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旧街凉风 2025-01-05 00:23:47

您在 MouseHook 构造函数中调用 Application.Run，然后当它返回时，您将调用 Application.Run code> 再次（在 SysTrayApp 构造函数中） - 然后，当 SysTrayApp 构造函数完成时，您将第三次调用它。如果您要运行三个不同的消息循环，则应该预计必须退出三次（我很惊讶您只需要调用 Application.Exit 两次）。

您不应该在您的构造函数中调用 Application.Run - 在我看来，构造函数阻塞直到消息泵完成的想法是令人讨厌的。如果您确实想要多个消息循环，它们应该位于不同的线程上 - 但我不建议您这样做。您只需在 Main 方法中调用 Application.Run 就可以了。