Visual Basic
C#
Managed Extensions for C++
C++/CLI
PDF dictionary class is used to work with the optional content.
Can be manipulated in a UI to affect changes in visibility of content.
It is used when an element belongs to one or more OCGs (layer(s)).
See Adobe PDF documentation for more information.
System.Object
ImageGear.Formats.PDF.ImGearPDFObject
ImageGear.Formats.PDF.ImGearPDFDictionary