[comp.sys.amiga] Using overscan

BAXTER_A@wehi.dn.mu.oz (06/27/90)

In article <22770@snow-white.udel.EDU>, gary@ctc.contel.com (Gary Bisaga x4219) writes:
> Can anybody point me to a description or give me a brief description of how
> one gets an overscan screen, preferably w/use of Intuition OpenScreen call?
> I have R'ed several FM's and the autodocs and cannot figure it out.  I have
> tried simply drawing to negative coordinates and it doesn't seem to work ...
> might that be because of some kind of clipping?  I appreciate any help.
> Please send directly to me (gary@ctc.contel.com) because I don't get this
> list.
> 
> Sincerely,
> Gary Bisaga (gary@ctc.contel.com)


I was waiting for this one again. Well folks, my last example of how to
gat an oversized screen WILL NOT WORK WITH OS2.0 if a scrolling WB is used.
I've written a new version that does work. I'll post it over the next few
days. All this demo will do is open a screen the size as the WB is the
WB is overscanned. (well, that's not all... What I mean is it doesn't
write in the blanking margins like DPaint (which won't work with OS2.0 either)

Regards Alan

ps. sorry to all those people who get distressed at OS2.0 in stead of AOS2.0