Feature request: choose which monitor to serve

[James Weatherall]

Barry,

VNC Server supports remoting of individual monitors' contents via the
command-line/registry option DisplayDevice, which should be set to something
like:

\\.\DISPLAY0 for the primary display
\\.\DISPLAY1 for the second display

And so on.

Regards,

Wez @ RealVNC Ltd.


> -----Original Message-----
> From: vnc-list-admin "at" realvnc.com 
> [mailto:vnc-list-admin "at" realvnc.com] On Behalf Of Barry Brown
> Sent: 21 August 2006 07:54
> To: vnc-list "at" realvnc.com
> Subject: Feature request: choose which monitor to serve
> 
> I'm happy that WinVNC includes extended-desktop support. But 
> would it  
> be possible to specify in the server which monitor to serve, rather  
> than serving the entire extended desktop?
> 
> When I do presentations, I hook up my laptop to a projector. I then  
> extend the desktop across both monitors. The presentation software  
> puts slightly different things on each display.
> 
> * The primary (laptop) display shows not only the slide I'm  
> projecting, but also a "filmstrip" of the available slides and some  
> controls. This way I can jump around the presentation easily.
> 
> * The external display, however, just shows the current slide. There  
> are no window borders, scroll bars, or anything.
> 
> My idea is this: use VNC to mirror the external display on other  
> computers. This would allow me to run the presentation "untethered."  
> That is, I'd be free to roam around the room, using VNC over 
> the wifi  
> connection to remotely display the presentation on another computer  
> which, in turn, would be connected to the projector.
> 
> I have a couple of ideas of how this could work on the server side.
> 
> In the VNC Server options, the user would be able to specify whether  
> they wanted to server the entire extended desktop (as is done in the  
> latest versions of the server), or pick which monitor to 
> serve. Being  
> able to select only one monitor would cut down on the number 
> of updates.
> 
> Perhaps the various options could be mapped to TCP ports. Say, 5900  
> for the whole extended desktop, 5901 for monitor 1, 5902 for monitor  
> 2, etc.
> 
> Taking this idea a step further, it might be handy to be able to  
> serve an arbitrary portion of the overall desktop. Let's say I only  
> want clients to be able to see one particular part of my screen. The  
> VNC Server options could display a small representation of my 
> desktop  
> and I'd drag a marquee to specify which portion to serve.
> 
> Is any of this feasible?
> 
> Barry
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