get Gadget
Gets the Gadget definition if this file represents a RevelDigital gadget.
This method is only applicable and will typically only return a non-null value if the getMimeType is "application/x-reveldigital-gadget". A RevelDigital gadget is a specialized HTML-based application that can be displayed by the player.
Return
The Gadget object if this file is a gadget definition, otherwise null
.
See also
// Ensure Gadget interface/class is also well-documented