The fields that can be unified in
)unifies T with
)unifies S with the serial number of the last request processed by the server.
)unifies B, a boolean value, with one of
)unifies D with the ProXL Display the event was read from.
)unifies R with the ProXL Window that requested the selection.
)unifies S with the atom name of the requested selection.
)unifies T with the atom name for the data type that the selection was converted to.
)unifies P with the atom name of the Window property where the converted selection was stored, or
noneif the conversion could not be performed.
)unifies T with the server time, in milliseconds, when the selection was stored.