Possible to modify VNC for screen-broadcast teaching?

[Tim Waugh]

On Fri, Jun 02, 2000 at 07:55:48AM +0100, Tim Waugh wrote:

> On Thu, Jun 01, 2000 at 11:32:45PM -0700, Wayne Throop wrote:
>
> > Anybody know if the rfb protocol is easily multicast-able?
> > You'd think it might be, but given the region update negotiations
> > that allow it to be so heterogeneous, maybe not...
>
> The server can send FrameBufferUpdates without being asked for them:
> so long as you make sure that it takes note of the minumum delta
> needed to keep all the clients happy by keeping track of their
> FrameBufferUpdateRequests it ought to work I think.

Actually, come to think of it, you probably need a couple more
messages in RFB:

PleaseListenOnMulticastAddress (server->client)
NoIWont (client->server)

And you need a way of doing error recovery..

Tim.
*/

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