QPressureReading Class

The QPressureReading class holds readings from the pressure sensor. 更多...

頭: #include <QPressureReading>
qmake: QT += sensors
Since: Qt 5.1
繼承: QSensorReading

該類在 Qt 5.1 引入。

特性

公共函數

qreal pressure () const
void setPressure (qreal pressure )
void setTemperature (qreal temperature )
qreal temperature () const

詳細描述

QPressureReading Units

The pressure sensor returns atmospheric pressure values in Pascals.

特性文檔編製

pressure : const qreal

This property holds the measured atmospheric pressure.

Returned as Pascals.

訪問函數:

qreal pressure () const

另請參閱 QPressureReading Units .

temperature : const qreal

This property holds the pressure sensor's temperature.

The temperature is returned in degree Celsius. This property, if supported, provides the pressure sensor die temperature. Note that this temperature may be (and usually is) different than the temperature reported from QAmbientTemperatureSensor 。使用 QSensor::isFeatureSupported () 采用 QSensor::PressureSensorTemperature flag to determine its availability.

該特性在 Qt 5.2 引入。

訪問函數:

qreal temperature () const

成員函數文檔編製

void QPressureReading:: setPressure ( qreal pressure )

Sets the pressure to pressure .

另請參閱 pressure ().

void QPressureReading:: setTemperature ( qreal temperature )

Sets the pressure sensor's temperature to temperature .

該函數在 Qt 5.2 引入。

另請參閱 temperature ().