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From: preetham@ra.src.umd.edu (Preetham Gopalaswamy)
Newsgroups: comp.windows.x
Subject: Help needed with Scrolled Window Widget (Hp Widget set)
Message-ID: <21630@mimsy.umd.edu>
Date: 4 Jan 90 17:18:52 GMT
Sender: news@mimsy.umd.edu
Reply-To: preetham@ra.src.umd.edu (Preetham Gopalaswamy)
Organization: Systems Research Center, U of Maryland, College Park, MD 20742
Lines: 27

I have just started using widgets after spending months and months and months
with Xlib.  My reference bible is Doug Young's "Programming and Applications
with Xt".  I am using the Hp widget set and am having a problem with the
scrolled window widget.  My application has a scrolled window widget
(XwswindowWidgetClass) which in turn has a workspace widget
(XwworkSpaceWidgetClass) as its child.  Based upon the size of the workspace
widget, I draw a plot in it so that a certain portion of the plot is visible
through the scrolled window, the rest obviously viewable by using the scroll
bar.  What I would like to see happen is that when the scrolled window
widget is resized, the workspace widget also be resized and the plot be redrawn
so that the same portion/amount of the plot is visible through the scrolled
window i.e. magnify or reduce the whole plot when the scrolling window is
resized and not just increase/decrease the visible region of the workspace 
widget.  I have tried several ways to implement this but have failed.  I am 
having problems preventing the appearance of the vertical scrollbar when the
scrolling window is made smaller (assuming of course that I start with no
vertical scrollbar).  Is this possible to accomplish and if so what would be
a possible method ??  The scrolled window does not have a XtNresize callback
which is a problem for starters.  If anybody on the net has spent long
(agonizing ???) hours with the scrolled window, maybe you can help me.
I have spent quite some time editing this posting so that my problem is 
understandable and I hope I have succeeded.
THANK YOU in advance for any help that I may get.

							Desperately awaiting an
							         answer
							  Preetham Gopalaswamy