||Defines a custom message that applications can use to send message types that
haven't been predefined in the API.
||Abstract base class for all message types supported by the picking API.
||Message class that can be used to send mouse over events.
||Send and receive details about vamsas object selections and selection ranges
defined on one or more objects.
||Concrete implementation of the IPickManager interface that uses sockets for
||Simple example of a (runnable) class that shows how to use the picking API.