The QAmbientLightReading class represents one reading from the ambient light sensor. 更多...
| 头： | #include <QAmbientLightReading> |
| qmake: | QT += sensors |
| Since: | Qt 5.1 |
| 继承： | QSensorReading |
该类在 Qt 5.1 引入。
| enum | LightLevel { Undefined, Dark, Twilight, Light, Bright, Sunny } |
| QAmbientLightReading::LightLevel | lightLevel () const |
| void | setLightLevel (QAmbientLightReading::LightLevel lightLevel ) |
The ambient light sensor returns the intensity of the ambient light using the pre-defined values found in the QAmbientLightReading::LightLevel 枚举。
This enum represents the ambient light level.
| 常量 | 值 | 描述 |
|---|---|---|
QAmbientLightReading::Undefined
|
0
|
The light level is unknown. |
QAmbientLightReading::Dark
|
1
|
It is dark. |
QAmbientLightReading::Twilight
|
2
|
It is moderately dark. |
QAmbientLightReading::Light
|
3
|
It is light (eg. internal lights). |
QAmbientLightReading::Bright
|
4
|
It is bright (eg. shade). |
QAmbientLightReading::Sunny
|
5
|
It is very bright (eg. direct sunlight). |
This property holds the ambient light level.
The value represents the ambient light and comes from QAmbientLightReading::LightLevel .
访问函数：
| QAmbientLightReading::LightLevel | lightLevel () const |
另请参阅 QAmbientLightReading Units .
Sets the ambient light level to lightLevel .
另请参阅 lightLevel ().
