The QRotationSensor class is a convenience wrapper around QSensor . 更多...
头: | #include <QRotationSensor> |
qmake: | QT += sensors |
Since: | Qt 5.1 |
继承: | 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 .
唯一行为差异是此类正确设置类型。
此类还特征 reading () 函数返回 QRotationReading 而不是 QSensorReading .
有关传感器如何工作的细节,见 QRotationReading .
另请参阅 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.
访问函数:
bool | hasZ () const |
通知程序信号:
void | hasZChanged (bool hasZ ) |
构造传感器作为子级对于 parent .
[虚拟]
QRotationSensor::
~QRotationSensor
()
销毁传感器。停止传感器若尚未停止。
返回用于此传感器的读取类。
另请参阅 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.
该函数在 Qt 5.1 引入。
另请参阅 hasZ ().