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NAME

       Data - object containing undo information for storage in a command

SYNOPSIS

       #include <Unidraw/Command/data.h>

DESCRIPTION

       Data  is  an  abstract  base  class  for  objects  that  components store in commands they
       (un)interpret.  Components use Data subclasses to store whatever information they need  to
       uninterpret the command.

PROTECTED OPERATIONS

       Data() The constructor is protected to prevent instantiation.

SEE ALSO

       Command(3U), Component(3U), Resource(3I)