[PATCH] VirtualBox headless VNC support by LibVNCServer

[Hubert Tournier]

Hello again,


Daisuke Aoyama wrote:
> 
>> Do you know where this limitation comes from? Any idea?
> I am testing only US 101 keys though 106 keys are main currents in our 
> country.
> I am using only US 101 :-)
> I will check other keyboards a little more.
> 

It seems to be a very common problem with both VNC clients and servers, due
to the way key events are handled in 
http://www.realvnc.com/docs/rfbproto.pdf the RFB protocol  (§6.4.4).

As I've made my test with "the only client that handles all servers and all
capabilities" (according to this article: 
http://jorgenmodin.net/index_html/archive/2009/05/12/comparison-vnc-clients-capabilities-including-alt-gr-characters-on-ubuntu-linux
Comparison: VNC Clients capabilities including Alt Gr characters on Ubuntu
Linux ) and still have this special keys problem, I think the way key events
are handled should be modified.

Searching a little bit, I found some examples with other "emulators"
embedding a VNC server:
- for Qemu:  http://www.mail-archive.com/qemu-devel@nongnu.org/msg11941.html
[Qemu-devel] [Patch] AltGr on vnc and adding extra keys with no compiling 
- for XEN: 
http://old.nabble.com/-PATCH-0-of-2--Fix-keymap-handling-for-vnc-console-td20505033.html
[PATCH 0 of 2] Fix keymap handling for vnc console , 
http://old.nabble.com/-PATCH-1-of-2--Fix-keymap-handling-for-vnc-console-td20505054.html#a20505054
[PATCH 1 of 2] ,  http://markmail.org/message/hgdtvtaaj7l66pwx [PATCH 2 of
2] 

I'll try to have a look at these in the next weeks...

Best regards,

Hubert
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