A unique smartpen handle assigned at smartpen dock. It is an incremented value assigned by the PenComm service. If the pen is un-docked or the PenComm Service is restarted, this handle becomes invalid. 

The PenHandle object is obtained from the attach event callback or by enumerating the smartpens using Smartpens.PenHandles. 

See PenHandle Members.

public struct PenHandle {
}