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From: ervin@pinbot.enet.dec.com (Joseph James Ervin)
Newsgroups: comp.sys.handhelds
Subject: Re: HP48SX Screen Dissolver (DISS)
Message-ID: <892@sousa.enet.dec.com>
Date: 6 Mar 91 16:29:42 GMT
References: <20652@shlump.nac.dec.com> <27d19c78:2275.1comp.sys.handhelds;1@hpcvbbs.UUCP> <877@sousa.enet.dec.com>
Sender: newsa@sousa.enet.dec.com
Reply-To: ervin@pinbot.enet.dec.com (Joseph James Ervin)
Organization: Digital Equipment Corporation
Lines: 19

Falco,

I'm not sure I can reach you, so I thought I'd post a note to 
you here.  Sorry folks.

If you do decide to use the screen dissolver in your code,  and
I hope you do :-),  then you might want to test for the variable 
DISS using the VTYPE command.  If this returns a 0, then the 
user has not installed DISS, and you could just display the 
startup screen normally (not using DISS).  Otherwise use DISS
to display the startup screen.

Testing for the existence of DISS in this way eliminates the need of 
distributing it with TETRIS, and adding the test should be easy and 
cheap.   

Just a thought.

>>>Joe Ervin