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- Path: dispatch.news.demon.net!demon!redrobe.demon.co.uk
- From: Mike@Redrobe.demon.co.uk (Mike)
- Newsgroups: comp.sys.amiga.programmer
- Subject: ScrollVport compatability WAS:re: FindTask() VERY IMPORTANT
- Date: 13 Mar 96 10:41:28 +0000
- Message-ID: <1023.6646T641T1437@Redrobe.demon.co.uk>
- References: <4hm7qm$otm@news.uni-paderborn.de> <1219.6641T796T412@Redrobe.demon.co.uk> <4i3t50$16j@serpens.rhein.de>
- NNTP-Posting-Host: redrobe.demon.co.uk
- X-NNTP-Posting-Host: redrobe.demon.co.uk
- X-Newsreader: THOR 2.22 (Amiga;TCP/IP)
-
-
- Hi, Michael van Elst , on 12-Mar-96 13:10:56 you scribbled....
- >Mike@Redrobe.demon.co.uk (Mike) writes:
-
- >>scr->ViewPort.RasInfo->RyOffset=y;
- >>ScrollVPort(&scr->ViewPort);
-
- >>is this fully compatable, would it even work on a gfx card (Cgfx)?
-
- >No.
-
- No it wouldnt work on a gfx card?
-
- >The best approximation (which is probably different from todays gfx card
- >drivers) would be to allow this operation when the associated screen mode
- >says that it is scrollable.
-
- arghh!
-
- OK, cards on the table time ;)
-
- I use the above pair for smooth screen scrolling, with a larger than screen
- bitmap...blitting into the off-screen bit before it gets scrolled into
- visible...
-
- How do I do this "more" compatable then? Blitting whole screen wont be as
- smooth on aga with lots of bitplanes methinks.... ;)
-
- TIA
-
- Mike
-
- --
- ---------------------------------------------------------------------------
- Mike Redrobe - Mike@Redrobe.demon.co.uk MikeRR on #Amiga
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