The QSensorBackendFactory class instantiates instances of QSensorBackend . 更多...
| 头： | #include <QSensorBackendFactory> |
| qmake: | QT += sensors |
| virtual QSensorBackend * | createBackend (QSensor * sensor ) = 0 |
The QSensorBackendFactory class instantiates instances of QSensorBackend .
This interface must be implemented in order to register a sensor backend.
另请参阅 Creating a sensor plugin .
[pure virtual]
QSensorBackend
*QSensorBackendFactory::
createBackend
(
QSensor
*
sensor
)
Instantiate a backend. If the factory handles multiple identifiers it should check with the sensor to see which one is requested.
If the factory cannot create a backend it should return 0.