The QMagnetometer class is a convenience wrapper around QSensor . 更多...
头: | #include <QMagnetometer> |
qmake: | QT += sensors |
Since: | Qt 5.1 |
继承: | QSensor |
该类在 Qt 5.1 引入。
QMagnetometer (QObject * parent = Q_NULLPTR) | |
virtual | ~QMagnetometer () |
QMagnetometerReading * | reading () const |
bool | returnGeoValues () const |
void | setReturnGeoValues (bool returnGeoValues ) |
void | returnGeoValuesChanged (bool returnGeoValues ) |
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 QMagnetometerReading 而不是 QSensorReading .
有关传感器如何工作的细节,见 QMagnetometerReading .
另请参阅 QMagnetometerReading .
This property holds a value indicating if geomagnetic values should be returned.
Set to true to return geomagnetic flux density. Set to false (the default) to return raw magnetic flux density.
The property must be set before calling start ().
访问函数:
bool | returnGeoValues () const |
void | setReturnGeoValues (bool returnGeoValues ) |
通知程序信号:
void | returnGeoValuesChanged (bool returnGeoValues ) |
构造传感器作为子级对于 parent .
[虚拟]
QMagnetometer::
~QMagnetometer
()
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 ().