Inheritance                Creating new Classes from existing ones
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  We may create new Classes from the ones we already have! We say we 'inherit'
  new Classes from the previous ones.

  In those Classes we use what we already have, but we may:

      * Modify some behaviors!

      * Add some new Data!



  Inheriting Classes we build a Class Hierarchy!

  In Clipper we do:

  CLASS TDialog FROM TWindow

     ...

  ENDCLASS


  So TDialog Objects have all the functionallity of a TWindow Object, but
  we add some new Data and we modify some behaviors!