export declare enum UpdateStatus {
    /** The remote scripting method has been completed (or was not run yet), and you can freely get return value or exception details. */
    ready = 0,
    /** The control updates a portion of image it displays (e.g. when user zoomed or scrolled it). The bitmap state is not changed while status is "refresh". */
    refresh = 1,
    /** The remote scripting method is running (the bitmap state is changing). */
    busy = 2
}