Signal​Notifier Signal​Notifier Signal​Notifier Signal​Notifier Class

Definition

Runs a method when an event or semaphore is signaled. A timeout value can also be specified, causing the delegate to run after the time span has elapsed if the named event does not occur (or if the semaphore does not reach a signaled state).

Note

The ThreadPool API is supported for desktop as well as Windows Store apps.

public : sealed class SignalNotifier : ISignalNotifierpublic sealed class SignalNotifier : ISignalNotifierPublic NotInheritable Class SignalNotifier Implements ISignalNotifier// This API is not available in Javascript.
Attributes
Windows 10 requirements
Device family
Windows 10 (introduced v10.0.10240.0)
API contract
Windows.Foundation.UniversalApiContract (introduced v1)

Methods

AttachToEvent(String, SignalHandler) AttachToEvent(String, SignalHandler) AttachToEvent(String, SignalHandler) AttachToEvent(String, SignalHandler)

Attaches a SignalHandler delegate to an event. The delegated method will run the next time the event occurs.

public : static SignalNotifier AttachToEvent(PlatForm::String name, SignalHandler handler)public static SignalNotifier AttachToEvent(String name, SignalHandler handler)Public Static Function AttachToEvent(name As String, handler As SignalHandler) As SignalNotifier// This API is not available in Javascript.
Parameters
name
PlatForm::String String String String

Indicates the event that causes the method to run.

handler
SignalHandler SignalHandler SignalHandler SignalHandler

Indicates the method that will run in response to the event.

Returns
See Also

AttachToEvent(String, SignalHandler, TimeSpan) AttachToEvent(String, SignalHandler, TimeSpan) AttachToEvent(String, SignalHandler, TimeSpan) AttachToEvent(String, SignalHandler, TimeSpan)

Attaches a SignalHandler delegate to an event. The delegated method will run if the event occurs or the time span elapses, whichever comes first.

public : static SignalNotifier AttachToEvent(PlatForm::String name, SignalHandler handler, TimeSpan timeout)public static SignalNotifier AttachToEvent(String name, SignalHandler handler, TimeSpan timeout)Public Static Function AttachToEvent(name As String, handler As SignalHandler, timeout As TimeSpan) As SignalNotifier// This API is not available in Javascript.
Parameters
name
PlatForm::String String String String

Indicates the event that causes the method to run.

handler
SignalHandler SignalHandler SignalHandler SignalHandler

Indicates the method that will run in response to the event, or when the time span elapses, whichever comes first.

timeout
TimeSpan TimeSpan TimeSpan TimeSpan

Indicates the amount of time to continue waiting for the event before running the handler method.

Returns
See Also

AttachToSemaphore(String, SignalHandler) AttachToSemaphore(String, SignalHandler) AttachToSemaphore(String, SignalHandler) AttachToSemaphore(String, SignalHandler)

Attaches a SignalHandler delegate to a named semaphore. The delegated method will run when the named semaphore is signaled.

public : static SignalNotifier AttachToSemaphore(PlatForm::String name, SignalHandler handler)public static SignalNotifier AttachToSemaphore(String name, SignalHandler handler)Public Static Function AttachToSemaphore(name As String, handler As SignalHandler) As SignalNotifier// This API is not available in Javascript.
Parameters
name
PlatForm::String String String String

Names the semaphore that signals the method to run.

handler
SignalHandler SignalHandler SignalHandler SignalHandler

Indicates the delegate that will run in response to the named semaphore entering the signaled state.

Returns
See Also

AttachToSemaphore(String, SignalHandler, TimeSpan) AttachToSemaphore(String, SignalHandler, TimeSpan) AttachToSemaphore(String, SignalHandler, TimeSpan) AttachToSemaphore(String, SignalHandler, TimeSpan)

Attaches a SignalHandler delegate to a named semaphore and specifies a timeout value. The delegated method will run when the named semaphore is signaled, or if the time span elapses before the semaphore reaches a signaled state.

public : static SignalNotifier AttachToSemaphore(PlatForm::String name, SignalHandler handler, TimeSpan timeout)public static SignalNotifier AttachToSemaphore(String name, SignalHandler handler, TimeSpan timeout)Public Static Function AttachToSemaphore(name As String, handler As SignalHandler, timeout As TimeSpan) As SignalNotifier// This API is not available in Javascript.
Parameters
name
PlatForm::String String String String

Names the semaphore that signals the method to run.

handler
SignalHandler SignalHandler SignalHandler SignalHandler

Indicates the delegate that will run in response to the named semaphore entering the signaled state.

timeout
TimeSpan TimeSpan TimeSpan TimeSpan

Indicates the amount of time to continue waiting for the named semaphore before running the delegate.

Returns
See Also

Enable() Enable() Enable() Enable()

Submits the SignalNotifier to the thread pool.

public : void Enable()public void Enable()Public Function Enable() As void// This API is not available in Javascript.

Terminate() Terminate() Terminate() Terminate()

Terminates the SignalNotifier if it has not already started running.

public : void Terminate()public void Terminate()Public Function Terminate() As void// This API is not available in Javascript.