Path: utzoo!mnetor!uunet!seismo!sundc!pitstop!sun!pepper!cmcmanis
From: cmcmanis%pepper@Sun.COM (Chuck McManis)
Newsgroups: comp.sys.amiga
Subject: Re: Mouse Pointer Help Required
Message-ID: <40895@sun.uucp>
Date: 3 Feb 88 19:27:58 GMT
References: <168@gould.doc.ic.ac.uk> <644@applix.UUCP> <645@applix.UUCP>
Sender: news@sun.uucp
Reply-To: cmcmanis@sun.UUCP (Chuck McManis)
Organization: Sun Microsystems, Mountain View
Lines: 44
Keywords: Help,Mouse Pointer

In article <645@applix.UUCP> scott@applix.UUCP (Scott Evernden) writes:
>You dummy; he said he wasn't using Intuition, so this is pretty worthless
>information.  (Maybe I should actually READ the messages I reply to).
>-scott

(This is Scott correcting himself by the way.) I too said, "Oops, he said
he is 'ignoring' Intuition." but then it became clear that it doesn't 
really matter in this case. Because 'ignoring Intuition' does not make it
go away! If you can move the mouse around, then Intuition is being called
by the input.device to move the mouse, if you can hit LeftAmiga-M and 
bring the workbench to the front then Intuition is there. And even if
neither of these cases is true, Intuition is ALWAYS in the ROM patiently
waiting for you. And if you call SetPointer() all it is *Really* doing
is fixing up the sprite data! So think of the code like this :

main()
    ... initializing some variables what have you.
    GoAwayPointer(); /* tell Intuition to make sprite 0 invisible */
    ...
    Stomp(); 	/* do you're worst, the pointer will still be gone */
    Stomp(); 
    Hack(); 
    Slash();
    ...
    Patch();
    Patch();
    Restore();
    UnStomp();
    ClearPointer();	/* Poof! The mouse reappears */
    exit(0);
}

The point is that you can use little pieces of Intuition with out buying into
the whole window system. And it is really just some code that lies around 
dormant until someone talks to it, you can't really make it go away.

If you are totally ignoring Intuition (you know makeing your own screens 
by stuffing values in to the copper list) then you just make the screen
to be 'sprite less'. But that is not necessary. 


--Chuck McManis
uucp: {anywhere}!sun!cmcmanis   BIX: cmcmanis  ARPAnet: cmcmanis@sun.com
These opinions are my own and no one elses, but you knew that didn't you.