内容

• 特性
• 公共函数
• 重实现公共函数
• 静态公共成员
• 详细描述
• QPressureReading Units

QPressureReading Class

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

头：	#include <QPressureReading>
qmake:	QT += sensors
Since:	Qt 5.1
继承：	QSensorReading

• 所有成员列表，包括继承成员
• 过时成员

特性

• pressure : const qreal
• temperature : const qreal

• 1 特性继承自 QSensorReading
• 1 特性继承自 QObject

公共函数

	QPressureReading (QObject * parent = DECLARE_READING(QPressureReading))
virtual	~QPressureReading ()
qreal	pressure () const
void	setPressure (qreal pressure )
void	setTemperature (qreal temperature )
qreal	temperature () const

重实现公共函数

virtual void

copyValuesFrom (QSensorReading * other ) override

• 4 公共函数继承自 QSensorReading
• 31 公共函数继承自 QObject

静态公共成员

const QMetaObject

staticMetaObject

• 9 静态公共成员继承自 QObject

额外继承成员

• 1 公共槽继承自 QObject
• 2 信号继承自 QObject
• 9 保护函数继承自 QObject

详细描述

The QPressureReading class holds readings from the pressure sensor.

QPressureReading Units

The pressure sensor returns atmospheric pressure values in Pascals.

特性文档编制

pressure : const qreal

This property holds the measured atmospheric pressure.

Returned as Pascals.

访问函数：

qreal

pressure () const

另请参阅 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.

该特性在 Qt 5.2 引入。

访问函数：

qreal

temperature () const

成员函数文档编制

QPressureReading:: QPressureReading ( QObject * parent = DECLARE_READING(QPressureReading))

Default constructs an instance of QPressureReading.

[虚拟] QPressureReading:: ~QPressureReading ()

Destroys the instance of QPressureReading. The destructor is virtual.

[override virtual] void QPressureReading:: copyValuesFrom ( QSensorReading * other )

void QPressureReading:: setPressure ( qreal pressure )

Sets the pressure to pressure .

另请参阅 pressure ().

void QPressureReading:: setTemperature ( qreal temperature )

Sets the pressure sensor's temperature to temperature .

该函数在 Qt 5.2 引入。

另请参阅 temperature ().