Qt：如何将事件发送到操作/窗口系统？ [英] Qt: How to send an event to the operating/window system?

问题描述

我想在一个Qt应用程序中创建一个事件，它可以由一个单独的Qt应用程序同时运行。正常的sendevent函数需要你命名将接收它的对象，但我不能使用它，我想它像一个键盘按事件，通过任何打开的程序在操作系统过滤。有谁知道如何做到这一点？感谢

解决方案

查看 Qt中的进程间通信。最跨平台友好的方式是使用套接字。

共享内存也是一种选择，但对于事件，我建议使用一个套接字，然后您可以在接收端连接插槽来处理它像一个本地事件。 / p>

编辑：对不起，我想我错过了真正的点，当我阅读其他答案，你想做一个像记录笔记任何地方的键盘记录器。不确定那个。

I want to create an event in one Qt application that can be picked up by a seperate Qt application running at the same time. The normal sendevent function requires you to name the object which will receive it but I can't use that, I want it to be like a keyboard press event which filters through any open programs in the OS. Does anyone know how to do that? thanks

解决方案

Take a look at Inter-Process Communication in Qt. The most cross-platform friendly way is to use a socket.

Shared memory is also an option, but for events I would recommend a socket that you can then attach slots to on the receiving side to handle it like a local event.

Edit: Sorry I think i missed the real point when I read the other answer, you want to make something like a key-logger that records strokes anywhere. Not sure about that one.

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