Overriding settings applied to DirectContext3DHandles through the Visibility dialog. 
   Namespace:   Autodesk.Revit.DB.DirectContext3D  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 18.0.0.0 (18.2.0.0) 
  Since:  2018 
Syntax
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Remarks
DirectContext3D graphics can be displayed with or without an associated DirectContext3D handle element. For DirectContext3D graphics that utilize the handle element, the visibility and appearance of the graphics can be adjusted through the Visibility/Graphics dialog.