The QRotationSensor class is a convenience wrapper around QSensor . 更多...
| 頭: | #include <QRotationSensor> |
| qmake: | QT += sensors |
| Since: | Qt 5.1 |
| 繼承: | QSensor |
| QRotationSensor (QObject * parent = Q_NULLPTR) | |
| virtual | ~QRotationSensor () |
| bool | hasZ () const |
| QRotationReading * | reading () const |
| void | setHasZ (bool hasZ ) |
| void | hasZChanged (bool hasZ ) |
The QRotationSensor class is a convenience wrapper around QSensor .
唯一行為差異是此類正確設置類型。
此類還特徵 reading () 函數返迴 QRotationReading 而不是 QSensorReading .
有關傳感器如何工作的細節,見 QRotationReading .
另請參閱 QRotationReading .
This property holds a value indicating if the z angle is available.
Returns true if z is available. Returns false if z is not available.
訪問函數:
| bool | hasZ () const |
通知程序信號:
| void | hasZChanged (bool hasZ ) |
構造傳感器作為子級對於 parent .
[虛擬]
QRotationSensor::
~QRotationSensor
()
銷毀傳感器。停止傳感器若尚未停止。
返迴用於此傳感器的讀取類。
另請參閱 QSensor::reading ().
Sets whether the z angle is available to hasZ . This is to be called from the backend. By default the hasZ property is true, so a backend only has to call this if its rotation sensor can not report z angles.
該函數在 Qt 5.1 引入。
另請參閱 hasZ ().