API Reference > imodeljs-frontend > Views > Viewport > flashedId flashedId Accessor The Id of the currently-flashed object. The "flashed" visual effect is typically applied to the object in the viewport currently under the mouse cursor, to indicate it is ready to be interacted with by a tool. ToolAdmin is responsible for updating it when the mouse cursor moves. The object is usually an Element but could also be a Model or pickable decoration produced by a Decorator. The setter ignores any string that is not a well-formed Id64String. Passing Id64.invalid to the setter is equivalent to passing undefined - both mean "nothing is flashed". flashedId: undefined | string throws Error if an attempt is made to change this property from within an Viewport.onFlashedIdChanged event callback. see Viewport.onFlashedIdChanged to be notified when the flashed object changes. see Viewport.flashSettings to customize the visual effect. Returns - undefined | string Setter The Id of the currently-flashed object. The "flashed" visual effect is typically applied to the object in the viewport currently under the mouse cursor, to indicate it is ready to be interacted with by a tool. ToolAdmin is responsible for updating it when the mouse cursor moves. The object is usually an Element but could also be a Model or pickable decoration produced by a Decorator. The setter ignores any string that is not a well-formed Id64String. Passing Id64.invalid to the setter is equivalent to passing undefined - both mean "nothing is flashed". flashedId(id: undefined | string): void throws Error if an attempt is made to change this property from within an Viewport.onFlashedIdChanged event callback. see Viewport.onFlashedIdChanged to be notified when the flashed object changes. see Viewport.flashSettings to customize the visual effect. Parameter Type Description id undefined | string Returns - void Defined in core/frontend/src/Viewport.ts Line 1469 Last Updated: 11 June, 2024