import { CornerstoneImage } from '../utils/cornerstoneHelper';
import { Element, Viewport, OnViewportChange } from '../types';
interface Prop {
    element: Element;
    image: CornerstoneImage | undefined;
    viewport?: Viewport;
    onViewportChange?: OnViewportChange;
}
/**
 * @param element The HTML Element enabled for Cornerstone.
 * @param viewport The Viewer's viewport prop.
 * @param initialViewport The user-defined initial viewport of a Viewer.
 * @param onViewportChange The Viewer's viewport setter prop.
 */
export default function useViewportUpdate({ element, image, viewport: newViewportProp, onViewportChange }: Prop): void;
export {};