This class represents the richmediadeactivation dictionary. This is definitively detailed in:.

The ISO PDF Specification, ISO 32000-2:2017 PDF 2.0; Table: 336, page 699.

Adobe Supplement to the ISO 32000, BaseVersion: 1.7, ExtensionLevel: 3; Table: 9.50b, page 80.

System.Object
    WebSupergoo.ABCpdf14.Elements.Element
       WebSupergoo.ABCpdf14.Elements.RichMediaDeactivationElement

A rich media deactivation dictionary describes the trigger causing an active rich media annotation to deactivate. The Condition entry selects: XD (explicit action), PC (page close), or PI (page invisible).