{WebTwainObject} Util

/**
 * Return whether the WebTwain object is running the ActiveX edition.
 */
isUsingActiveX(): boolean;

/**
 * Specify an event listener for the specified built-in event.
 * @param name Specify the event
 * @param callback The event listener
 */
RegisterEvent(name: string, callback: () => void): boolean;

/**
 * Remove an event listener from the specified built-in event.
 * @param name Specify the event
 * @param callback The event listener
 */
UnregisterEvent(name: string, callback: () => void): boolean;

/**
 * Set the product key.
 * @param productKey Specify the key.
 */
SetProductKeyAsync(
    productKey: string
): Promise<any>;

/**
 * Set the language for the authorization dialogs.
 * @param language Specify the language.
 */
SetLanguage(
    language: Dynamsoft.EnumDWT_Language | number
): boolean;

/**
 * Generate a URL to be used by a FileUpoader instance to fetch the data to upload.
 * @param indices Specify the images to upload.
 * @param type Specify the file type.
 * @param successCallback A callback function that is executed if the request succeeds.
 * @param failureCallback A callback function that is executed if the request fails.
 * @argument resultURL The generated URL.
 * @argument indices The indices of the images.
 * @argument type The file type.
 */
GenerateURLForUploadData(
    indices: number[],
    type: Dynamsoft.EnumDWT_ImageType | number,
    successCallback: (
        resultURL: string,
        indices: number[],
        type: Dynamsoft.EnumDWT_ImageType | number
    ) => void,
    failureCallback: (
        errorCode: number,
        errorString: string
    ) => void
): void;

/**
 * Return the error code.
 */
readonly ErrorCode: number;

/**
 * Return the error string.
 */
readonly ErrorString: string;

/**
 * Return or set the log level for debugging.
 */
LogLevel: number;

/**
 * Manufacturer in the identity string of the Dynamic Web TWAIN library.
 */ 
readonly Manufacturer: string;

/**
 * ProductFamily in the identity string of the Dynamic Web TWAIN library.
 */
readonly ProductFamily: string;

/**
 * ProductName in the identity string of the Dynamic Web TWAIN library.
 */
readonly ProductName: string;

/**
 * VersionInfo in the identity string of the Dynamic Web TWAIN library.
 */
readonly VersionInfo: string;

/**
 * Return or set the ProductKey.
 */
ProductKey: string;

/**
 * Return whether this WebTwain instance is in Local-Service mode or WASM mode.
 */
UseLocalService:boolean;