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From: jjfeiler@nntp-server.caltech.edu (John Jay Feiler)
Newsgroups: comp.sys.next
Subject: Categories and IB
Message-ID: <1991Mar27.211400.7995@nntp-server.caltech.edu>
Date: 27 Mar 91 21:14:00 GMT
Organization: California Institute of Technology, Pasadena
Lines: 15

In chapter three of the concepts volume, (you know, the written docs),
there is a discussion of Categories.  I.e., adding methods to a class
without adding any instance variables.  Is there any way to get IB to
recognize a Category of a TextField short of building a new palette?
For that matter, is there any way to get IB to create a category instead
of a subclass?

Also, what determines whether or not you can instantiate a newly created
subclass?  I subclassed TextField, and tried to instantiate it, but the
inst. choice in the Classes browser was ghosted.  (I figured I could add the
SubTextField by hand into the window during init, but it wouldn't work)

	Thanks

		John Feiler