Re: SetData pointer facility for Dialog list structures (List, Combo, Selection)

From: [at]} <Gérard>
Date: Wed, 1 Sep 2004 22:57:40 +0200

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> By the way do OmS still do minor updates to BlackBox?

Yes. Three at least. They were individual answers to problem reports. It
would be nice that Oms maintains its patch repository.

> If only the Dialog data types had been marked as EXTENSIBLE this would
> have enabled a BlackBox user to implement the required additional fields
> and methods without too much difficulty, wouldn't it? Or am I
> overlooking something?

You're right in a sense, but the BlackBox philosophy prefers objects
composition to objects inheritance. Clemens Szyperski, co-founder of Oms, in
his book "Component Software" explains why it is less dangerous to do so. To
apply objects composition to Controls and other visual objects, you may use
wrappers (e.g. UtilWrappers, or ObxWrappers).

Regards.

Gérard

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Received on Wed Sep 01 2004 - 22:57:40 UTC