var instance = new Vintasoft.Imaging.Annotation.UI.WebAnnotationViewerJS(controlId);

var value; // Type: object
value = instance.get_AnnotationBoundingRect();

function get_AnnotationBoundingRect() : object;

An object "{ x: x, y: y, width: width, height: height }" that defines a rectangle, where annotation can be built/transformed. null or empty rectangle means that annotation can be built/transformed only within the image. Default value is null.