Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!gate.oxy.edu!oxy!sonenbli
From: sonenbli@oxy.edu (Andrew D. Sonenblick)
Newsgroups: comp.sys.mac.programmer
Subject: desktop pictures....
Message-ID: <107498@tiger.oxy.edu>
Date: 15 Aug 90 00:39:10 GMT
Organization: Occidental College, Los Angeles, CA  90041
Lines: 10

I was doing so lo level examination of codes and came accross
Tim Maroney's Backdrop code.  I assumed that having a picture in place of
a pattern on the desktop would require a patch or two, so I looked at what
he patched.  Woe!  It appears that he patches FillRect and FillRgn to
achieve his functionality.  Unfortunately I could not figure out exactly
how using these traps would enable him to replace the desktop.	Does anyone
out in frontierland know how that mechanisms of this program work?

Just your average lo level question resulting from a lo level sunday memory
stroll.... Ando Moon