Interface: IEventEmitter<T>

Entity that raises events that can be subscribed to

Type Param

type

Extended by

• IConfigurationService
• IImagingService
• INativeService
• IPreviewApi
• IQueue
• IQueuePointer
• IQueueService
• IHighlightViewer
• IPreloadService
• IViewerCollection
• IViewerService
• IApplicationWindow

Type Parameters

• Textendsstring

Methods

off()

off(eventType, handler?, once?): void

Unregisters an event handler

Parameters

• eventType: T

Event to unregister from

• handler?: EventHandler

Event handler function. If not passed in, it removes all event handlers.

• once?: boolean

Boolean indicating if the event handler was registered as a one-time event handler (Defaults to false)

Returns

void

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on()

on(eventType, handler): void

Registers an event handler

Parameters

• eventType: T

Event to listen for

• handler: EventHandler

Event handler function

Returns

void

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once()

once(eventType, handler): void

Registers an event handler that is only run once

Parameters

• eventType: T

Event to listen for

• handler: EventHandler

Event handler function

Returns

void