Caching & switching titles off in X-vncviewer

[Quentin Stafford-Fraser]

Andreas Kotes wrote:

> The displays are all 1024x768, but I can't let the VNC-display fit on a
> complete virtual screen, even if I switch off the wmdecorations .. the
> title bar is the problem. Would be great if one could switch it off!

I think this is just a case of configuring your window manager
appropriately.  The -wmdecoration option doesn't disable decorations, it
simply allows you to specify to the viewer how much space they take up. 
This enables the viewer to know when it needs scrollbars, so you will
want to set that to 0x0. But you will also need to tell your window
manager not to display the title bar and decorations.

> Every time I switch display, the _complete_ display shown in the vncviewer
> is polled again, and not cached 

When the X VNC viewer window is obscured, it asks the server to save a
copy of the display to speed up the redrawing.  But if the server
doesn't, or if for any other reason the expose event actually gets
through to the viewer, it will request the update from the server - it
doesn't keep its own local copy.  You might find that different virtual
desktops therefore do this in different ways. Some of the other viewers
do keep their own copies of the screen.  In an ideal world, I guess this
would be a user-configurable option.

Regards,
Quentin Stafford-Fraser
-- 
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Dr Quentin Stafford-Fraser                   http://www.orl.co.uk/~qsf
ORL - The joint research lab of Olivetti & Oracle

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