Web Add-in Extensibility Developer Guide > JavaScript Function Reference > Event Handling         

Event Handling         

The toolkit support set registers for events on the elements of its custom controls. During a recording session, UFT passes the events to the support set's event handlers. The handlers can then record the test steps and perform other application-dependent tasks.

Only native DOM events are supported. Custom controls cannot register for events defined by JavaScript toolkits.

The event may be triggered on any element within the custom control. However, the _elem token always represents the root element.

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