Allows clients to poll the cancellation status of a background operation. Revit instantiates CancellationListener objects for internal background operation implementations only. As such, third-party developers are not expected to instantiate or handle CancellationListener objects.

public class CancellationListener : IDisposable

Public Class CancellationListener _
	Implements IDisposable

public ref class CancellationListener : IDisposable