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CompassReading Structure

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Contains information about the magnetic field detected by the device’s compass sensor, which can be used to determine the orientation of the device relative to the Earth’s magnetic field.

Namespace:  Microsoft.Devices.Sensors
Assembly:  Microsoft.Devices.Sensors (in Microsoft.Devices.Sensors.dll)


Public Structure CompassReading _
    Implements ISensorReading
public struct CompassReading : ISensorReading

The CompassReading type exposes the following members.


  Name Description
HeadingAccuracy Gets the accuracy, in degrees, of the compass heading readings.
MagneticHeading Gets the heading, in degrees, measured clockwise from the Earth’s magnetic north.
MagnetometerReading Gets the raw magnetometer reading in microteslas.
Timestamp Gets a timestamp indicating the time at which the compass reading was taken. This can be used to correlate readings across sensors and provide additional input to algorithms that process raw sensor data.
TrueHeading Gets the heading, in degrees, measured clockwise from the Earth’s geographic north.



  Name Description
Equals Indicates whether this instance and a specified object are equal. (Inherited from ValueType.)
Finalize Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
GetHashCode Returns the hash code for this instance. (Inherited from ValueType.)
GetType Gets the Type of the current instance. (Inherited from Object.)
MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
ToString Returns the fully qualified type name of this instance. (Inherited from ValueType.)



To obtain a CompassReading object, create a Compass object and then use the CurrentValue property or implement a handler for the CurrentValueChanged event.


If you use this API in your app, you must specify the following capabilities in the app manifest. Otherwise, your app might not work correctly or it might exit unexpectedly.


Windows Phone 8, Windows Phone OS 7.1

For more info, see App capabilities and hardware requirements for Windows Phone 8.

Version Information

Windows Phone OS

Supported in: 8.1, 8.0, 7.1


Windows Phone

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

See Also


Microsoft.Devices.Sensors Namespace