'宣言 Public MustInherit Class AnnotationBase Inherits GrapeCity.Documents.Pdf.Wrappers.PdfDictWrapper Implements GrapeCity.Documents.Common.IOwnedObject, GrapeCity.Documents.Pdf.Spec.IPdfDict, GrapeCity.Documents.Pdf.Spec.IPdfObject, GrapeCity.Documents.Pdf.Structure.IContentItem
public abstract class AnnotationBase : GrapeCity.Documents.Pdf.Wrappers.PdfDictWrapper, GrapeCity.Documents.Common.IOwnedObject, GrapeCity.Documents.Pdf.Spec.IPdfDict, GrapeCity.Documents.Pdf.Spec.IPdfObject, GrapeCity.Documents.Pdf.Structure.IContentItem