'宣言 Public Class ViewerPreferences Inherits GrapeCity.Documents.Pdf.Wrappers.PdfDictWrapper Implements GrapeCity.Documents.Pdf.Spec.IPdfDict, GrapeCity.Documents.Pdf.Spec.IPdfObject
public class ViewerPreferences : GrapeCity.Documents.Pdf.Wrappers.PdfDictWrapper, GrapeCity.Documents.Pdf.Spec.IPdfDict, GrapeCity.Documents.Pdf.Spec.IPdfObject