This class provides access to the command that is launched by a double click action.

Autodesk.AutoCAD.Customization.ElementBase
    Autodesk.AutoCAD.Customization.VersionableElement
        Autodesk.AutoCAD.Customization.CustomizationElement
        Autodesk.AutoCAD.Customization.IReference
            Autodesk.AutoCAD.Customization.CustomizationReference
                Autodesk.AutoCAD.Customization.DoubleClickCmd

Public Class DoubleClickCmd
Inherits CustomizationReference

public class DoubleClickCmd : CustomizationReference;