QDBusServiceWatcher¶
- PyQt5.QtDBus.QDBusServiceWatcher
Inherits from QObject.
Description¶
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).
Besides being created or deleted, services may change owners without a unregister/register operation happening. So the serviceRegistered and serviceUnregistered signals may not be emitted if that happens.
This class is more efficient than using the serviceOwnerChanged signal because it allows one to receive only the signals for which the class is interested in.
See also
Enums¶
- WatchModeFlag
QDBusServiceWatcher supports three different watch modes, which are configured by this flag:
Member
Value
Description
WatchForOwnerChange 0x03
watch for any kind of service ownership change.
WatchForRegistration 0x01
watch for service registration only, ignoring any signals related to other service ownership change.
WatchForUnregistration 0x02
watch for service unregistration only, ignoring any signals related to other service ownership change.
Methods¶
- __init__(parent: QObject = None)
TODO
- __init__(str, QDBusConnection, watchMode: Union[WatchMode, WatchModeFlag] = WatchForOwnerChange, parent: QObject = None)
TODO
- addWatchedService(str)
TODO
- connection() → QDBusConnection
See also
- removeWatchedService(str) → bool
TODO
- setConnection(QDBusConnection)
TODO
- setWatchedServices(Iterable[str])
See also
- setWatchMode(Union[WatchMode, WatchModeFlag])
See also
- watchedServices() → List[str]
See also
- watchMode() → WatchMode
See also
Signals¶
- serviceOwnerChanged(str, str, str)
TODO
- serviceRegistered(str)
TODO
- serviceUnregistered(str)
TODO
