From: utzoo!decvax!ucbvax!info-vax
Newsgroups: fa.info-vax
Title: Screen package
Article-I.D.: ucbvax.450
Posted: Tue Dec 21 20:58:38 1982
Received: Thu Dec 23 20:13:00 1982

>From coar.umass@UDel-Relay  Tue Dec 21 20:57:43 1982
Mail-From: ARPANET host SANDIA rcvd at 21-Dec-82 0321-PST
Mail-From: ARPANET site UDEL-RELAY rcvd at 21-Dec-82 0424-MST
To: info-vax.umass@UDel-Relay
Cc: coar.umass@UDel-Relay
Via:  UMASS-ECE; 21 Dec 82 2:53-EST
Remailed-Date: 21 Dec 1982 1051-PST
Remailed-From: the tty of Geoffrey S. Goodfellow  <Geoff5 at SRI-CSL>
Remailed-To: Info-VAX@SRI-CSL: ;

In the VMS directory (VMS V3.n) SYS$EXAMPLES, there is a file
called SCRFT.MAR. This is a template for user-written extensions
to the RTL screen package. It could use a lot more documentation
than it has, but it gives you the idea. It will allow you to extend
user utilities that muck around with the screen, but ---

it won't help with EDT. EDT, for some truly bizarre and obscure
reason, has its terminal driving routines hard-coded into it for
the VTxxx series. This is probably to force you to use DEC terminals
if you want the grace (?) and ease-of-use of EDT...

This was the case as of VMS V2.n. I haven't poked through the EDT
section of the microfiche (assuming it's there - has anyone else
noticed that AUTHORIZE vanished from the 'fiche for V3.0?), so
it may have been made expandable - but don't count on it.

For myself, I'll take Emacs over EDT any day...

	ken
	coar@umass