Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!uwm.edu!bionet!agate!ucbvax!ucdavis!csusac!unify!openlook!openlook-request
Newsgroups: comp.windows.open-look
Subject: Re:  Drag & Drop
Message-ID: <6pxvw9n@openlook.Unify.Com>
Date: 1 Mar 91 07:14:50 GMT
Lines: 41

Francois Staes writes:

> I'm searching for an example application of the drag and drop routines
> as described in the OLIT Widget set reference manual. I didn't find
> any example in the example directory.

You're right; those routines missed making it into the reference manual.
I can send the Pixmap Editor source code that handles fielding drag-and-
drop events to anyone who's interested.

> Can anybody tell me whether it is possible to use these functions to
> (e.g.) move a button interactively within a window ?

OLIT drag-and-drop can handle textual data and filenames, but there's no
way I can think of to use that to do what you want.  If you're just moving
the widget within it's own window/application, you could perhaps look at
it as a lighter weight 'move' operation rather than a full drag-and-drop,
with all its associated inter-client negotiations.

> If I remember well, I once heard a rumour that these routines would change
> drastically in the next releases. Any comments ????

Yes, OLIT will change to use the new ICCC-endorsed standard for drag-and-drop
once it is finalized.  The good news it will be able to handle the transfer
of most any kind of data (as ICCCM selections), and that other vendors will
likely also migrate to use the standard, acheiving greater interoperability.
The bad news is it still seems a ways off.

> Thanks in advance,

You're welcome in retrospect,  8^)

Jim Bash
UNIX(r) System Labs
Summit, New Jersey
j.bash@att.com

Larry Cable
Sun Microsystems
Mt. View, California
lpgc@eng.sun.com