API Reference > imodeljs-frontend > Views > OnFlashedIdChangedEventArgs OnFlashedIdChangedEventArgs Type alias Payload for the Viewport.onFlashedIdChanged event indicating Ids of the currently- and/or previously-flashed objects. OnFlashedIdChangedEventArgs = { current: Id64String, previous: Id64String } | { current: Id64String, previous: undefined } | { current: undefined, previous: Id64String } Defined in core/frontend/src/Viewport.ts Line 173 Last Updated: 11 June, 2024