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From: dcbii@ncrcae.Columbia.NCR.COM (dcbii)
Newsgroups: comp.sys.mac.programmer
Subject: Updating a non-window area
Message-ID: <5364@ncrcae.Columbia.NCR.COM>
Date: 14 Nov 89 14:57:36 GMT
Reply-To: dcbii@ncrcae.Columbia.NCR.COM ()
Organization: NCR Corp., Engineering & Manufacturing - Columbia, SC
Lines: 24

I am fairly new to mac programming, and I have a question that I'm sure some
of you can answer or at least, provide a workaround.

My application does drawing directly to the desktop area.  The drawing is done
offscreen and then CopyBits'd to the screen.  That part is no problem.

My problem is that I don't know when to update the area after a DA or another
window has drawn over the area.  I have searched the Inside Mac volumes and
Macintosh Revealed, but I can't seem to find a way to get a pseudo update
event for a non-window area.  Does anyone know how this can be done?  I don't
want to use a window, because I don't want any frame.  Of course, if I can
make a window look like the desktop area, maybe that will work, too.

Also, how can I get a mouse-click event in the desktop area before DaMenuz
does?  (Without turning off the hierarchical menu-bar option?)  Is this even
possible?

Thanks in advance for any possible help,


Dave Barnhart
NCR Corp.
Engineering & Manufacturing
West Columbia, SC  29169