'宣言
Public Class _PositionEllipseAnnotation Inherits _PositionRectangleAnnotation Implements IAnnotation, IAnnotationPosition, IBoxBounded, IQueryInterface, IRotatableAnnotation
public class _PositionEllipseAnnotation : _PositionRectangleAnnotation, IAnnotation, IAnnotationPosition, IBoxBounded, IQueryInterface, IRotatableAnnotation