LightSensorReading LightSensorReading LightSensorReading LightSensorReading LightSensorReading Class


Represents an ambient light–sensor reading.

public : sealed class LightSensorReading
struct winrt::Windows::Devices::Sensors::LightSensorReading
public sealed class LightSensorReading
Public NotInheritable Class LightSensorReading
// This class does not provide a public constructor.

Windows 10 requirements

Device family
Windows 10 (introduced v10.0.10240.0)
API contract
Windows.Foundation.UniversalApiContract (introduced v1)


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..

Version history

Windows version SDK version Value added
1709 16299 PerformanceCount
1709 16299 Properties


IlluminanceInLux IlluminanceInLux IlluminanceInLux IlluminanceInLux IlluminanceInLux

Gets the illuminance level in lux.

PerformanceCount 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.

Properties Properties Properties Properties Properties

Gets the data properties reported by the sensor.

Timestamp Timestamp Timestamp Timestamp Timestamp

Gets the time at which the sensor reported the reading.