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From: ejk@uxh.cso.uiuc.edu (Ed Kubaitis)
Newsgroups: comp.windows.x
Subject: 32K pixel limit on viewport/list widget??
Keywords: list, viewport, Xaw, X11R4
Message-ID: <1990Feb12.162019.4239@ux1.cso.uiuc.edu>
Date: 12 Feb 90 16:20:19 GMT
Sender: news@ux1.cso.uiuc.edu (News)
Reply-To: ejk@uxh.cso.uiuc.edu (Ed Kubaitis)
Organization: University of Illinois at Urbana
Lines: 18

It appears that a viewported list widget (Xaw) runs into trouble when the 
height of the total list in pixels (taking into account the font in use) 
exceeds about 32K. For very large fonts (e.g. "*helv*-34-*") there seems to be
a limit of about 16K. Attempts to scroll the list beyond that point cause
the list to scroll back to the beginning or be truncated prematurely.

This has been observed on two clients running X11R4 (Sequent Symmetry
and Convex) and on two servers (NCD19 and Visual 14").

Is this a known restriction/limitation or does it sound like a bug that
should be reported? If the latter, would someone please tell me where
to send the report and support materials (about 100 lines) and whether there
is a standard template to use for the report.

Thanks
-------------------------
Ed Kubaitis (ejk@ux1.cso.uiuc.edu)
Computing Services Office - University of Illinois, Urbana