API Reference > imodeljs-frontend > Tools > ViewManip > onKeyTransition onKeyTransition Method Called when any key is pressed or released. onKeyTransition(wentDown: boolean, keyEvent: KeyboardEvent): Promise<EventHandled> Parameter Type Description wentDown boolean keyEvent KeyboardEvent Returns - Promise<EventHandled> Yes to prevent further processing of this event Defined in core/frontend/src/tools/ViewTool.ts Line 584 Last Updated: 29 November, 2022