ITrackCancel Interface

Provides access to members that control the Cancel Tracker.

Product Availability

Description

The CancelTracker object is the object used by ArcObjects to monitor the Esc key (optionally, the space bar and mouse clicks as well) and to terminate processes at the request of the user. A CancelTracker is typically handed into or created just prior to functions that execute a lengthy operation such as, printing, exporting and drawing.

The ITrackCancel interface provides access to properties and methods that determine if a cancellation has been executed by the user, and also allows developers to specify what actions constitute a cancellation.

Members

	All Properties Methods	Description
	Cancel	Cancels the associated operation.
	CancelOnClick	Indicates whether mouse clicks should cancel the operation.
	CancelOnKeyPress	Indicates whether the escape key and spacebar should cancel the operation.
	CheckTime	The interval at which the operation will be interrupted to advance progressors and process messages.
	Continue	Called frequently while associated operation is progressing. A return value of false indicates that the operation should stop.
	ProcessMessages	An obsolete method.
	Progressor	The progressor used to show progress during lengthy operations.
	Reset	Resets the manager after the associated operation is finished.
	StartTimer	An obsolete method.
	StopTimer	An obsolete method.
	TimerFired	An obsolete method.

CoClasses that implement ITrackCancel