Path: utzoo!utgpu!watmath!att!dptg!rutgers!apple!usc!bloom-beacon!ATHENA.MIT.EDU!swick
From: swick@ATHENA.MIT.EDU (Ralph R. Swick)
Newsgroups: comp.windows.x
Subject: Re: Access to Widget List in Composite Part.
Message-ID: <8908301555.AA27189@LYRE.MIT.EDU>
Date: 30 Aug 89 15:55:53 GMT
References: <3809@ncsuvx.ncsu.edu>
Sender: daemon@bloom-beacon.MIT.EDU
Organization: DEC/MIT Project Athena
Lines: 17

> I wish there was a macro to access the structure "WidgetList children", in
> the Composite part. Right now, the only way I can do it is to #include
> IntrinsicP.h, which is ugly.

If you are writing a widget (sub)class, then including IntrinsicP.h
is a normal and expected thing to do.  If you are writing an application
and want to see the widget list, then you're out of luck until R4 at
which time you will be able to do XtGetValues to retrieve these.

> Furthermore, I do believe that "WidgetList
> children" and "Cardinal num_children" in Composite part should be moved
> to CorePart.

Perhaps, but its not a source-compatible change for widgets
(Xt _is_ a standard now) and it's not clear that this is the most
efficient use of memory in the typical case.  You are welcome
to make all your own widgets subclasses of Composite if you wish.