Re: preventing inheritance

[eachus@spectre.mitre.org (Robert I. Eachus)]

In article <32B85141.376A@bix.com> Tom Moran <tmoran@bix.com> writes:

  > 2) If MS in the future adds a way to implement Get_First_Character on
  > Multiline edit controls, it would become reasonable to move that routine
  > from Edit_Controls.Single_Line to Edit_Controls, leaving
  > Edit_Controls.Single_Line a bodyless package containing nothing but a
  > single type definition.  It would become yet another instance of "this
  > seemingly pointless complexity is here for historical reasons". 
  >   My difficulty is really an aesthetic one so perhaps the only solution
  > is to modify my aesthetic sensibilities. ;)

   There are two other solutions:

   1) Provide your own Get_First_Character for multiline edits.  Can
be done.

   2) Define Get_First_Character outside of Edit_Controls, or nested
in a Single_Line package.  This reflects the actual structure--an
operation on the parent that is not inherited.


--

					Robert I. Eachus

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