'宣言 Public Class TextMarkupAnnotation Inherits MarkupAnnotation Implements GrapeCity.Documents.Common.IOwnedObject, GrapeCity.Documents.Pdf.Spec.IPdfDict, GrapeCity.Documents.Pdf.Spec.IPdfObject, GrapeCity.Documents.Pdf.Structure.IContentItem
public class TextMarkupAnnotation : MarkupAnnotation, GrapeCity.Documents.Common.IOwnedObject, GrapeCity.Documents.Pdf.Spec.IPdfDict, GrapeCity.Documents.Pdf.Spec.IPdfObject, GrapeCity.Documents.Pdf.Structure.IContentItem