QCoreApplication事件循环和Windows服务控制处理程序功能

Question

I need both event loops: one for Windows service (or Linux daemon ) and another for Qt event queue QCoreApplication::exec() (or QApplication::exec() or even QEventLoop::exec() ).

Can I have both at the same time in single thread? Or should I create a separate thread for one of them? In the latter case how should be arranged interaction process between QObject s and "window"/"service" thread?

Windows service requires either Message only window along with window procedure to receive and process a messages from the Windows , or Service Control Handler Function . I want to be able to process both kinds of events comes from the Windows and Qt -specific ones.

Can I use QEventLoop/QCoreApplication/QApplication::processEvents to process Qt events between events, that comes from a Windows ? How can it affect service responsiveness and QTimer responsiveness?

Answer 1

Qt event loop integrates native notifications/events on all platforms. The nativeEventFilter is how you react to native events when you wish to.

Answer 2

Try to use QtService library. The QtService is useful for developing Windows services and Unix daemons: https://github.com/qtproject/qt-solutions/tree/master/qtservice

Alternatively, you can realize it yourself like as in QtService library: https://github.com/qtproject/qt-solutions/blob/master/qtservice/src/qtservice_win.cpp#L556