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From: wagner@utcs.uucp (Michael Wagner)
Newsgroups: net.micro.amiga
Subject: Re: Q: AmigaBasic access to Amiga features
Message-ID: <1074@utcs.uucp>
Date: Sun, 2-Feb-86 21:35:25 EST
Article-I.D.: utcs.1074
Posted: Sun Feb  2 21:35:25 1986
Date-Received: Sun, 2-Feb-86 21:41:27 EST
References: <1277@vax135.UUCP>
Reply-To: wagner@utcs.UUCP (Michael Wagner)
Organization: University of Toronto - General Purpose UNIX
Lines: 33
Summary: 

In article <1277@vax135.UUCP> cjp@vax135.UUCP (Charles Poirier) writes:
>I remember hearing from some, possibly non-authoritative source, that
>with the Amiga one could define a region to be displayed (I don't know
>whether to call it a playfield, window, or what), that is bigger than the
>screen-area.  And that you could scroll the on-screen region across the
>bigger region very simply, as by changing a pointer to the on-screen
>origin or some such.
>
>I can't find how to do this in Microsoft AmigaBasic V1.1.  Can it in
>fact be done in AmigaBasic?  Can it be done at all?  Is this covered in
>some manual set other than what Joe Consumer gets (so far) with V1.1?

There is a SCROLL command.  Page 8-135.  Implements vertical and
horizontal scroll.  Haven't had a chance to use it yet.  Don't know if
it's what you're looking for or not.  And I don't know if you can
open virtual windows larger than the screen (from BASIC...facilities
exist in the EXEC to do this).

>
>Can one coerce the mouse() command to switch its attention from port 1
>to port 2 and back?  And: is there a way to read joystick (rather than
>mouse) information through AmigaBasic?

The STICK and STRIG functions look like what you want for the second 
point.  Don't know about mousing on port 2.  Seem to recall reading
that mice had to be plugged into port 1 (restriction was OS, not BASIC).
(see pages 8-143-4 for STRIG and STICK) 

>
I answered to the net, since the questions seem of general interest.
Hope that was the right thing to do.

Michael