Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!newstop!exodus!dmaustin
From: dmaustin@vivid.sun.com (Darren Austin)
Newsgroups: comp.windows.open-look
Subject: Re: Controlling scrolling with views
Message-ID: <DMAUSTIN.91Feb20225141@vivid.sun.com>
Date: 21 Feb 91 06:51:40 GMT
References: <lc8vgw9@openlook.Unify.Com>
Sender: news@exodus.Eng.Sun.COM
Organization: Sun Microsystems, Mountain View
Lines: 39
In-reply-to: fgreco@govt.shearson.com's message of 20 Feb 91 19:44:13 GMT

In article <lc8vgw9@openlook.Unify.Com> fgreco@govt.shearson.com (Frank Greco) writes:

   Since SCROLLABLE_PANELS are OPENWINs, I would think that the 
   following would get the view's scrollbar in my split_proc():
   [called whenever the user splits a view]

	   split_proc(origview, newview,  pos)
	   Xv_Window origview, newview;
	   int pos;
	   {
		   Scrollbar sbar;

		   sbar = xv_get(newview, OPENWIN_VERTICAL_SCROLLBAR);

		   ...other stuff...

		   notify_interpose_event_func(xv_get(sbar, SCROLLBAR_NOTIFY_CLIENT), doscroll, NOTIFY_SAFE);
	   }

   But I get a zero for sbar everytime.

   Anyone got any ideas why this doesn't work?

Yes.  You should be trying the following to get the view's
scrollbar:

	sbar = (Scrollbar)xv_get(xv_get(newview, XV_OWNER),
			         OPENWIN_VERTICAL_SCROLLBAR, newview);

If you already have a handle to the scrollable panel, then you
can use that instead of the xv_get(newview, XV_OWNER).

Hope this helps,
--Darren
--
Darren Austin                         |  Actually, it's a buck and a quarter
Windows and Graphics Software	      |  staff, but I'm not going to tell
Sun Microsystems, Mountain View       |  *him* that.
dmaustin@sun.com	              |