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From: Paul.Quane@samba.acs.unc.edu (Paul Quane)
Newsgroups: comp.windows.x.motif
Subject: XmScrolledList explodes
Keywords: XmScrolledList XmList XmListDeletePos XmListAddItemUnselected
Message-ID: <1923@beguine.UUCP>
Date: 12 Dec 90 19:14:04 GMT
Sender: usenet@beguine.UUCP
Lines: 26

Motif 1.0 X11R3 on HP-UX and Interactive

Hi,
  I'm having a problem which I would appreciate some help with. 

I create a scrolled list ( using XmCreateScrolledList , 
visible item count 5 , no items initially, rest default ) in a form
in a dialog.
Each time I manage the dialog I delete any existing items using 
XmListDeletePos and then create a new list using 
XmListAddItemUnselected specifying position 0.
This seems the best way to do it as the list of items may vary
a lot between each dialog manage.

The problem arises when the user uses the scrollbar to peer at items
which are not initially seen due to the visible item count being 5.
Nothing happens right away, but the next time the dialog is managed
the scrolled list widget goes crazy. The only parts that appear are the
top shadow and the top arrow and there are no items in the list 
and the dialog is far longer than the sceen height ( greater than twice ?).
It looks like the scrolled window decides to have an infinite height!
Anybody ever had anything like this happen ? 

Now some for further investigation.......

Paul Quane