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Internet Message Format  |  1992-08-26  |  881 b 
  1. Path: sparky!uunet!wupost!usc!sol.ctr.columbia.edu!caen!uakari.primate.wisc.edu!ames!data.nas.nasa.gov!taligent!apple!cambridge.apple.com!lieber@MEDIA-LAB.MEDIA.MIT.EDU
  2. From: lieber@MEDIA-LAB.MEDIA.MIT.EDU (Henry Lieberman)
  3. Newsgroups: comp.lang.lisp.mcl
  4. Subject: main-screen-color-p
  5. Message-ID: <9208261535.AA13352@media-lab.mit.edu>
  6. Date: 26 Aug 92 15:35:14 GMT
  7. Sender: info-mcl-request@cambridge.apple.com
  8. Lines: 8
  9. Approved: comp.lang.lisp.mcl@Cambridge.Apple.C0M
  10. Original-To: info-mcl@MEDIA-LAB.MEDIA.MIT.EDU
  11.  
  12.  
  13. Main-Screen-Color-P still doesn't do it, I'm afraid. 
  14. On my machine, a color screen, it returns T, but when I set the
  15. Monitors control panel to black-and-white, it still returns T.
  16.  
  17. I think what most programs will want to know is whether color pixels
  18. are actually reaching the user's retina, not if the screen has the
  19. "capability" in some sense to do color display.
  20.