What would happen if the video driver sees no monitor (client), and another
card that has...

Otherwise, the driver could check, and change settings itself, if it's
started without client..
Guess the risk is a very low one.

Just thinking... Would windows start using a device that is disabled by
default, or default back to what it did see before?

ViNCe
SimBox.NL

-----Oorspronkelijk bericht-----
Van: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Namens
James Weatherall
Verzonden: vrijdag 16 september 2005 17:30
Aan: [EMAIL PROTECTED]; 'Rudi De Vos';
[email protected]
Onderwerp: RE: Screen Blanking on a vnc connection

Hi Vince,

Yup, that's a way to do it.  The main risk is that if something causes the
server to crash then you might end up with a "headless" system... :)

Cheers,

Wez @ RealVNC Ltd.


> -----Original Message-----
> From: ViNCe [mailto:[EMAIL PROTECTED] 
> Sent: 16 September 2005 15:57
> To: 'James Weatherall'; 'Rudi De Vos'; [email protected]
> Subject: RE: Screen Blanking on a vnc connection
> 
> 
> Would it be an option to create something like a virtual 
> video card, and use that for vnc? (use a single exe to 
> install / uninstall that driver, and bypass all warnings)
> 
> That would eneable VNC to switch screens, move visible 
> windows to the other screen, leave the primary monitor as it 
> is, no flashing or whatever, and send only updated parts to 
> the client.
> 
> I guess it would work faster too...
> 
> ViNCe
> SimBox.NL 
> 
> -----Oorspronkelijk bericht-----
> Van: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] Namens James Weatherall
> Verzonden: donderdag 15 september 2005 15:53
> Aan: 'Rudi De Vos'; [email protected]
> Onderwerp: RE: Screen Blanking on a vnc connection
> 
> Hi Rudi,
> 
> Yes, we've done some work on the layered technique too.  It's 
> a shame that the OS doesn't provide a better interface to 
> monitor-powerdown or off-screen rendering, otherwise it'd be 
> safe to use that and avoid all this complication!
> 
> Cheers,
> 
> Wez @ RealVNC Ltd.
> 
> 
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf Of Rudi De Vos
> > Sent: 15 September 2005 13:26
> > To: [email protected]
> > Subject: RE: Screen Blanking on a vnc connection
> > 
> > Indeed,
> > 
> > UltraVnc now use a layered window for screen blanking.
> > Black screen or custom bmp (if background.bmp exist on server site, 
> > this image is stretch on the remote display)
> > 
> > The trick is quite simple:
> > Make a fullscreen layered window and desactivate the layered
> > capturing.
> > 
> > Effect: VNC does not longer capture the layer and show what 
> is below. 
> > But the user on the server site see the layer :)
> > 
> > There are some disadvantages,
> > + effect is the same as disabling layer capturing,
> > some updates are missing.
> > +some parts (mouse, moving icons..) popup on top of the
> > server display.
> > 
8<------------- older messages removed ---------------------
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