Path: utzoo!utgpu!attcan!uunet!husc6!bloom-beacon!tut.cis.ohio-state.edu!mailrus!ames!pasteur!ucbvax!hplabs!nsc!voder!apple!dan
From: dan@Apple.COM (Dan Allen)
Newsgroups: comp.sys.mac.hypercard
Subject: Re: HyperCard with multiple monitors...
Message-ID: <14837@apple.Apple.COM>
Date: 28 Jul 88 06:38:55 GMT
References: <3150003@vx2.GBA.NYU.EDU>
Reply-To: dan@apple.apple.com.UUCP (Dan Allen)
Organization: Apple Computer Inc, Cupertino, CA
Lines: 24

In article <3150003@vx2.GBA.NYU.EDU> spector@vx2.GBA.NYU.EDU (David HM Spector) writes:
>I have a MacintoshII with two monitors at home, one is a Sony 1302 attacted
>to a standard Apple video card with 256 colors, the second is an Apple
>monochrome also with a standard video card with 16 colors.  Here's my quandry:
>
>If I have the Sony 1302 set to 256 colors, and the monochrome set to 2 colors,
>HyperCard will not show me any visual effects on the second screen.  Hmmm.
>
>Secondly:
>If I have *both* monitors set to 2 color mode HyperCard will only show me
>viusal effects on the "main" monitor, which in this case is the Sony 1302.
>Now, I have a sneaking suspicion that this is a glaring _bug_ in HyperCard...

This is NOT a bug.  HyperCard does visual effects only on the **main**
screen, where main is defined to be the screen that the menu bar lives
on.  This "main" screen must also be in 2 color mode.  This is because
the visual effects write directly to the screen, so the screen depth
must be 1 bit deep.  Someday, with more code, we MAY be able to extend
the functionality of viseffects to multiple monitors and color screens,
but for now, this is the way it was designed to work.

Dan Allen
Software Explorer
Apple Computer