LightSensorReading LightSensorReading LightSensorReading LightSensorReading Class

Definition

Represents an ambient light–sensor reading.

public : sealed class LightSensorReading : ILightSensorReadingpublic sealed class LightSensorReading : ILightSensorReadingPublic NotInheritable Class LightSensorReading Implements ILightSensorReading// You can use this class in JavaScript.
Attributes
Windows 10 requirements
Device family
Windows 10 (introduced v10.0.10240.0)
API contract
Windows.Foundation.UniversalApiContract (introduced v1)

Remarks

This object is accessed when you invoke the GetCurrentReading method; and, it is accessed when you retrieve the Reading property of the LightSensorReadingChangedEventArgs object in the event callback method..

Properties

IlluminanceInLux IlluminanceInLux IlluminanceInLux IlluminanceInLux

Gets the illuminance level in lux.

public : float IlluminanceInLux { get; }public float IlluminanceInLux { get; }Public ReadOnly Property IlluminanceInLux As float// You can use this property in JavaScript.
Value
float float float float

The illuminance level in lux.

PerformanceCount PerformanceCount PerformanceCount PerformanceCount

Gets the performance count associated with the reading. This allows the reading to be synchronized with other devices and processes on the system.

public : IReference<TimeSpan> PerformanceCount { get; }public Nullable<TimeSpan> PerformanceCount { get; }Public ReadOnly Property PerformanceCount As Nullable<TimeSpan>// You can use this property in JavaScript.
Value
IReference<TimeSpan> Nullable<TimeSpan> Nullable<TimeSpan> Nullable<TimeSpan>

The performance count for the reading. Null if this property is not supported on the sensor.

Additional features and requirements
Device family
Windows 10 Fall Creators Update (introduced v10.0.16299.0)
API contract
Windows.Foundation.UniversalApiContract (introduced v5)

Properties Properties Properties Properties

Gets the data properties reported by the sensor.

public : IMapView<string, object> Properties { get; }public IReadOnlyDictionary<string, object> Properties { get; }Public ReadOnly Property Properties As IReadOnlyDictionary<string, object>// You can use this property in JavaScript.
Value
IMapView<PlatForm::String, PlatForm::Object> IReadOnlyDictionary<string, object> IReadOnlyDictionary<string, object> IReadOnlyDictionary<string, object>

Contains a key/value pair for each data property reported by the sensor for the given reading. The key is a string of the property key, and the value is the value of the property that the key represents.

Additional features and requirements
Device family
Windows 10 Fall Creators Update (introduced v10.0.16299.0)
API contract
Windows.Foundation.UniversalApiContract (introduced v5)

Timestamp Timestamp Timestamp Timestamp

Gets the time at which the sensor reported the reading.

public : DateTime Timestamp { get; }public DateTimeOffset Timestamp { get; }Public ReadOnly Property Timestamp As DateTimeOffset// You can use this property in JavaScript.
Value
DateTime DateTimeOffset DateTimeOffset DateTimeOffset

The time at which the sensor reported the reading.