This class represents a toolbar flyout.

Autodesk.AutoCAD.Customization.ElementBase
    Autodesk.AutoCAD.Customization.VersionableElement
        Autodesk.AutoCAD.Customization.CustomizationElement
            Autodesk.AutoCAD.Customization.ToolbarItemBase
                Autodesk.AutoCAD.Customization.ToolbarFlyout

Public Class ToolbarFlyout
Inherits ToolbarItemBase

public class ToolbarFlyout : ToolbarItemBase;