如何结合自己的消息循环和Qt事件循环? [英] How to combine own message loop and Qt event loop?

问题描述

我有一个从 QThread: class MyClass : public QThread 派生的类.在运行方法中，我有我自己的"消息循环:

I have a class derived from QThread: class MyClass : public QThread. In the run method I have "my own" message loop:

run() { 
  // exec(); // while not reached    
  while (_runMessageLoop && ...) {
    hr = CallDispatch(.....);
    if (hr== 0) QThread::msleep(100); 
    // QCoreApplication::processEvents(); // Does not work
  }
}

由于 exec() 没有被执行，我没有 Qt 事件循环.这显然会导致信号/槽无法正常工作.是否有机会将 Qt 和我自己的消息循环结合起来?或者我是否需要频繁触发计时器才能完成我在无限循环中完成的工作?

Since exec() is not executed, I have no Qt event loop. This obviously causes signal / slots not to work correctly. Is there any chance to combine the Qt and my own message loop? Or do I need a frequently firing timer in order to do what I have accomplished in my infinite loop?

推荐答案

Qt-wise"的正确方法是使用计时器并让 Qt 管理事件循环.

The right way "Qt-wise" is to use a timer and let Qt manage the event loop.

如果你需要依赖外部事物，你可以使用QAbstractSocket之类的东西在数据通过外部套接字传入时发送事件，例如.

If you need to depend on external things, you can use things like QAbstractSocket to send events when data comes in over an external socket, eg.

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