RE: [Dynapi-Chat] [OT] two-way browser communication, no joke.

[Pascal B. <pb...@oi...>]

hmm..have to get working on my wolfenstein-dhtml clone then (multiplayer!)
:)

Pascal Bestebroer (pb...@oi...)
Software ontwikkelaar
Oberon Informatiesystemen b.v.
http://www.oibv.com


> -----Oorspronkelijk bericht-----
> Van: dyn...@li...
> [mailto:dyn...@li...]Namens Scott Andrew
> LePera
> Verzonden: donderdag 28 juni 2001 8:42
> Aan: dyn...@li...
> Onderwerp: [Dynapi-Chat] [OT] two-way browser communication, no joke.
>
>
> This is somewhat off-topic, but I thought it might interest the DynAPI
> crowd, since DHTML and dynamic content go hand in hand.
>
> For a couple months, I've been working for a company called KnowNow.
> Today, we officially launched and a developer version of our
> product is
> available.  I'll tell you what it does, and then why the DynAPI crowd
> might be interested in it.  I apologize if this comes off
> sounding like
> marketing-speak :/
>
> KN makes a product which is an event router.  It's a mini-server you
> install alongside your current server setup. In a nutshell, the router
> acts like telephone operator, connecting incoming calls to their
> destinations.  Except the calls are actually events, similar (but not
> limited to) JavaScript events.  When an event is "published" to the
> router, the router broadcasts it to any "subscribers" listening for
> certain events.  This all happens across HTTP in realtime.
>
> What this means is *two-way* communication between browsers,
> in as close
> to realtime as the server will allow.
>
> What does this have to do with DynAPI and DHTML?  Well, the
> router has a
> JavaScript API.  When you do something that generates an event in
> JavaScript (not just native events, you can create event object
> yourself, like the DynAPI does), you can use the API to publish that
> event to the router and broadcast it to anyone listening for that type
> of event. This is all done without a plug-in and no client add-ins. No
> Java, no ActiveX.
>
> For example, let's say that Robert, Pascal and myself are looking at a
> DynAPI page that uses the Sprite widget to create a spaceship for each
> of us.  When I press the A key, my spaceship moves forward.
> At the same
> time, an event is created and published to the router, which
> broadcasts
> it to Robert and Pascal.  Their browsers are subscribed to the same
> router that my browser is publishing to.  Pascal is a continent away,
> but he *sees my ship move* across his screen.  So does Robert.  When
> Robert moves his ship, he publishes events to the router, and
> Pascal and
> I see Robert's sprite move.
>
> Any DHTML/DynAPI application can be KnowNow-enabled.  You can build
> things like realtime chatrooms, IM clients, games, MenuLists that
> populate themselves with data from other sources, etc.  I know this
> because I built half of the demos on the KN developer site.  And even
> cooler, it's not limited to JavaScript and DHTML.  You can publish and
> subscribe to events within a Visual Basic app, Java, Flash and C++,
> too.  One of my coworkers and I built two chat clients, one in
> HTML/JavaScript and one in VB.  He types 1337-speak into the VB clien
> and it shows up on the DHTML version, and vice versa.  It is truly
> insane.
>
> Anyway, sorry if this sounds like proseltyzing. It's just
> that I've had
> to keep my mouth shut for a long time about this, and I kept thinking
> "DHTML people will *love* this."  Besides, the DynAPI group
> has some of
> the most talented DHTML people around, and we're always
> looking for ways
> solve the problems of getting data from the backend, so here's a cool
> toy.
>
> Links of note:
>
> http://developer.knownow.com - get a demo-grade router here.
> http://www.knownow.com
>
> More about what KN stuff does:
> http://www.siliconvalley.com/docs/opinion/dgillmor/dg062701.htm
>
> -- scottandrew
>
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