Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!ames!decwrl!hplabs!well!ewhac
From: ewhac@well.UUCP (Leo 'Bols Ewhac' Schwab)
Newsgroups: comp.sys.amiga.tech
Subject: Re: bitmaps with intuition...
Message-ID: <6261@well.UUCP>
Date: 13 Jun 88 06:29:45 GMT
References: <4370@gryphon.CTS.COM> <3170@charon.unm.edu> <56215@sun.uucp>
Reply-To: ewhac@well.UUCP (Leo 'Bols Ewhac' Schwab)
Organization: The CIA:  Third-World Governments Destabilized While-U-Wait.
Lines: 24

In article <56215@sun.uucp> cmcmanis@sun.UUCP (Chuck McManis) writes:
>In article <3170@charon.unm.edu> hansb@ariel.unm.edu.UUCP (Hans Bechtel) writes:
>>Questions:
>>
>>how do I convert planeptrs to window's bitmap to common x,y 
>>coordinates?
>
>[ Chuck McManis attempts to help. ]

	Hans specifically said 'window'.  Chuck's dissertation is correct
for screens and BitMap structures.  However, a window is a superset of a
layer, and layers can be anywhere on the screen.  Layers can also be
obscured.  There is severe voodoo involved in figuring out what the status
of a window's position and visibility is.  For an example of what you're
looking at, check out 'DropShadow'.

	What precisely are you trying to accomplish?  You might be able to
fake it with some of the blit calls.

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