iTextSharp.text.pdf.PdfContentByte.BeginMarkedContentSequence C# (CSharp) Метод

        public void BeginMarkedContentSequence(PdfStructureElement struc)
        {
            PdfObject obj = struc.Get(PdfName.K);
            int mark = pdf.GetMarkPoint();
            if (obj != null) {
                PdfArray ar = null;
                if (obj.IsNumber()) {
                    ar = new PdfArray();
                    ar.Add(obj);
                    struc.Put(PdfName.K, ar);
                }
                else if (obj.IsArray()) {
                    ar = (PdfArray)obj;
                    if (!ar[0].IsNumber())
                        throw new ArgumentException(MessageLocalization.GetComposedMessage("the.structure.has.kids"));
                }
                else
                    throw new ArgumentException(MessageLocalization.GetComposedMessage("unknown.object.at.k.1", obj.GetType().ToString()));
                PdfDictionary dic = new PdfDictionary(PdfName.MCR);
                dic.Put(PdfName.PG, writer.CurrentPage);
                dic.Put(PdfName.MCID, new PdfNumber(mark));
                ar.Add(dic);
                struc.SetPageMark(writer.PageNumber - 1, -1);
            }
            else {
                struc.SetPageMark(writer.PageNumber - 1, mark);
                struc.Put(PdfName.PG, writer.CurrentPage);
            }
            pdf.IncMarkPoint();
            SetMcDepth(GetMcDepth() + 1);
            content.Append(struc.Get(PdfName.S).GetBytes()).Append(" <</MCID ").Append(mark).Append(">> BDC").Append_i(separator);
        }