🚀 go-pugleaf

Geoff Brunkhorst writes

> That's not how I remember it.  The extension has to be supported on
> both sides of the 'wire'.  I run into a lot of "extension not supported
> on server" error messages when running DEC's DPS stuff on an Xterm.
> Granted that is some bastardized X11R[3,4] that DEC is using, not R5.

You've missed the press release about DPS NX, then :-).  The DPS NX
system is an 'agent' - a third process which will take your PostScript
and send the correct X protocol to the server for you.  Then, the X
server you are talking to does not need the extension integration.
Yes, there are performance issues.  But if you cared about that small
difference in performance, you probably wouldn't have bought X terminals
in the first place.

Best part is, the Display PostScript client library already knows how
to talk to an agent for you - your application speaks on API, and
doesn't have to care if the server has Display PostScript as an
extension as long as a DPS NX agent is or can be running on your
network.

> Also, Sun, et al, has to start selling systems to end users.  Ever
> notice how hard it is to change the font size on an xterm window?
> Mere mortals can't do it.  A lot of NeXT's selling points to the
> common end user is the ability to switch fonts on the fly on apps
> like Stuart and Terminal and Mail (a lot of blind people use computer
> nowadays).  Display Postscript will not sell the soap, until the
> development environment makes it too easy not to incorporate easy
> to use functionality.

Well, cheesy apps that don't care about typography can use ATM
undex X (or the other scalable rasterizers).  If you care about
typography, you're going to speak PostScript anyway.

--
Scott Byer                             NeXTMail: byer@mv.us.adobe.com
Adobe Systems Incorporated               These are *my* opinions, and  
1585 Charleston Road, P.O. Box 7900        do not necessarily reflect
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