'宣言
Public Class _ImageAnnotationDefinition Inherits GrapeCity.DataVisualization.Chart._BaseAnnotationOverlayDefinition(Of IImageOverlayOption) Implements IAnnotationOverlayDefinition, ILegendOverlayDefinition, IOverlayDefinition, IQueryInterface
public class _ImageAnnotationDefinition : GrapeCity.DataVisualization.Chart._BaseAnnotationOverlayDefinition<IImageOverlayOption>, IAnnotationOverlayDefinition, ILegendOverlayDefinition, IOverlayDefinition, IQueryInterface