RE: UltraVNC protocol extensions?

For feature requests and bug reports RC15 RC16. Please use the forum at http://forum.ultravnc.net/

Bob,

The only valid protocol versions are 3.3, 3.7, 3.8 and 4.0.

The standard VNC viewer works around broken servers by assuming that if they
report a non-existent protocol version, then they can probably support the
next highest actual protocol version properly.  If a server reports the
non-existent version 3.6, therefore, VNC Viewer will ask it to use protocol
3.3 in the hope that it can support that properly.

Cheers,

Wez @ RealVNC Ltd.


> -----Original Message-----
> From: [email protected] 
> [mailto:[email protected]] On Behalf 
> Of Bob Friesenhahn
> Sent: 21 September 2005 18:27
> To: [email protected]
> Subject: [Ultravnc-list] UltraVNC protocol extensions?
> 
> For feature requests and bug reports RC15 RC16. Please use 
> the forum at http://forum.ultravnc.net/
> 
> I have written a VNC client which works well with the RealVNC and 
> OSXvnc servers.  The client is written according to the RFB 
> specification from the RealVNC folks.  This specification does not 
> document a protocol version "003.006" as used by UltraVNC.  It 
> documents ""003.003", "003.007", and "003.008".
> 
> After doing an apparently successful DES-based login (security result 
> message is 0 and connection stays up), my client sends the desktop 
> share option (1) and waits for the server initialization message. 
> Data received during the server initialization stage looks like junk 
> to me (framebuffer width & height are zero) so it appears that 
> protocol synchronization has already been lost.
> 
> The RealVNC client does manage to work with UltraVNC.
> 
> Is there any specification for the protocol extensions defined by 
> UltraVNC?
> 
> What does the client initialization sequence look like for UltraVNC?
> 
> Bob
> 
> 
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