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net.hadess.SensorProxy.Compassnet.hadess.SensorProxy.Compass — D-Bus proxy to access Compass sensors |
ClaimCompass (); ReleaseCompass ();
After checking the availability of the sensor type you want to monitor, call the net.hadess.SensorProxy.ClaimCompass() method to start updating the properties from the hardware readings.
The object path will be "/net/hadess/SensorProxy/Compass".
ClaimCompass ();
To start receiving compass heading updates from the proxy, the application must call the net.hadess.SensorProxy.ClaimCompass() method. It can do so whether a compass is available or not, updates would then be sent when such a sensor appears.
Applications should call net.hadess.SensorProxy.ReleaseCompass() when readings are not required anymore. This prevents the sensor proxy from polling the device, thus increasing wake-ups and reducing battery life.
Note that Compass information is only available to Geoclue by default, which will proxy the magnetic heading information, and transform it to True North heading.