=head1 NAME

Tk::DragDrop::SunConst - Constants for Sun's Drag&Drop protocol

=for pm DragDrop/DragDrop/SunConst.pm

=for category Experimental Modules

=head1 DESCRIPTION

This module defines symbolic name subs for the numeric constants that
make up Sun's Drag&Drop protocol. They are in this module with Exporter
as they are shared between the two halves (Dropper and Receiver) of
the protocol.

=cut