QLightSensor Class▲
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Header: QLightSensor
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Since: Qt 5.1
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CMake:
find_package(Qt6 REQUIRED COMPONENTS Sensors)
target_link_libraries(mytarget PRIVATE Qt6::Sensors)
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qmake: QT += sensors
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Inherits: QSensor
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Group: QLightSensor is part of sensors_type
Detailed Description▲
The only behavioural difference is that this class sets the type properly.
This class also features a reading() function that returns a QLightReading instead of a QSensorReading.
For details about how the sensor works, see QLightReading.
See Also▲
See also QLightReading
Property Documentation▲
[read-only] fieldOfView : const qreal▲
This property holds a value indicating the field of view.
This is an angle that represents the field of view of the sensor.
Not all light sensor support retrieving their field of view. For sensors that don't support this property, the value will be 0. Whether the field of view is supported can be checked with QSensor::isFeatureSupported() and the QSensor::FieldOfView flag.
Access functions:
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qreal fieldOfView() const
Notifier signal:
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void fieldOfViewChanged(qreal fieldOfView)
Member Function Documentation▲
[explicit] QLightSensor::QLightSensor(QObject *parent = nullptr)▲
Construct the sensor as a child of parent.
[virtual] QLightSensor::~QLightSensor()▲
Destroy the sensor. Stops the sensor if it has not already been stopped.
QLightReading *QLightSensor::reading() const▲
[since 5.1] void QLightSensor::setFieldOfView(qreal fieldOfView)▲
Sets the field of view to fieldOfView. This is to be called from the backend.
This function was introduced in Qt 5.1.
See Also▲
See also fieldOfView()