qt - QDBus 接口监视 - g_bus_watch_name

Question

Qt 是否公开了一种方法来监视 DBus 接口，类似于g_bus_watch_name？我想知道应用程序何时启动或关闭，观察它的 DBus 接口。

Answer 1

There is the QDBusServiceWatcher class that can monitor the bus for service changes. From the docs-

The QDBusServiceWatcher class allows the user to watch for a bus service change.

A QDBusServiceWatcher object can be used to notify the application about an ownership change of a service name on the bus. It has three watch modes:

• Watching for service registration only.
• Watching for service unregistration only.
• Watching for any kind of service ownership change (the default mode).