PerceptionTimestamp Class

Definition

Namespace:

Windows.Perception

Represents a particular prediction of the future, or a snapshot of the past.

Passing one PerceptionTimestamp instance to multiple API calls ensures that they all return results based on the same set of predicted data, even if Windows has improved predictions available. This ensures that you can correctly correlate the data you get back from these APIs.

public ref class PerceptionTimestamp sealed

/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 131072)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
class PerceptionTimestamp final

[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 131072)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
public sealed class PerceptionTimestamp

Public NotInheritable Class PerceptionTimestamp

Inheritance

Object Platform::Object IInspectable PerceptionTimestamp

Attributes

ContractVersionAttribute MarshalingBehaviorAttribute ThreadingAttribute

Windows requirements

Device family	Windows 10 (introduced in 10.0.10586.0 - for Xbox, see UWP features that aren't yet supported on Xbox)
API contract	Windows.Foundation.UniversalApiContract (introduced in v2.0)

Remarks

Version history

Windows version	SDK version	Value added
1809	17763	SystemRelativeTargetTime

Properties

PredictionAmount	For timestamps about the future, gets the span of time between when the prediction was made and TargetTime.
SystemRelativeTargetTime	Gets the specific time that is the subject of this timestamp, represented in the system-relative QueryPerformanceCounter (QPC) time domain.
TargetTime	Gets the specific time that is the subject of this timestamp.