ThreadPoolTimer Class

Reference

Definition

Namespace:: Windows.System.Threading

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Edit

Represents a timer created with CreateTimer or CreatePeriodicTimer.

Note

The ThreadPool API is supported for desktop as well as UWP apps.

public ref class ThreadPoolTimer sealed

/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
class ThreadPoolTimer final

[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
public sealed class ThreadPoolTimer

Public NotInheritable Class ThreadPoolTimer

Inheritance: Object Platform::Object IInspectable ThreadPoolTimer

Attributes: ContractVersionAttribute MarshalingBehaviorAttribute ThreadingAttribute

Windows requirements

Device family	Windows 10 (introduced in 10.0.10240.0)
API contract	Windows.Foundation.UniversalApiContract (introduced in v1.0)

Examples

The following code shows the creation of a periodic timer by passing in a TimerElapsedHandler delegate method.

int period = 1000;

ThreadPoolTimer PeriodicTimer =
    ThreadPoolTimer.CreatePeriodicTimer(ExampleTimerElapsedHandler,
                                        TimeSpan.FromMilliseconds(period));

When your app is done using the timer, it should be cancelled. The following code cancels the periodic timer created in the previous example.

if (PeriodicTimer != null)
{
    PeriodicTimer.Cancel();
}

Remarks

The CreatePeriodicTimer or CreateTimer method can be used to create this object.

Note

A TimeSpan value of zero (or any value less than 1 millisecond) will cause the periodic timer to behave as a single-shot timer.

Properties

Delay	Gets the timeout value of a single-use timer created with CreateTimer.
Period	Gets the timeout value of a periodic timer created with CreatePeriodicTimer.

Methods

Cancel()	Cancels a timer.
CreatePeriodicTimer(TimerElapsedHandler, TimeSpan, TimerDestroyedHandler)	Creates a periodic timer and specifies a method to call after the periodic timer is complete. The periodic timer is complete when the timer has expired without being reactivated, and the final call to handler has finished.
CreatePeriodicTimer(TimerElapsedHandler, TimeSpan)	Creates a periodic timer.
CreateTimer(TimerElapsedHandler, TimeSpan, TimerDestroyedHandler)	Creates a single-use timer and specifies a method to call after the timer is complete. The timer is complete when the timer has expired and the final call to handler has finished.
CreateTimer(TimerElapsedHandler, TimeSpan)	Creates a single-use timer.

Applies to

Sdílet prostřednictvím