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Is there a VNC server that lets me define only a region of the screen for remote control?

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like CITRIX for application sharing? Or you mean on the client side that manages the VNC instance, you only want to resize the client view? – Jakub Jul 6 '12 at 14:10
@Jakub no not on the client side. I want the server to serve only a small portion of the screen (because all the action happens in that part and its a waste to send the entire screen) – Midhat Jul 6 '12 at 23:40
Is stuff actually changing on the rest of the screen? VNC usually only transmits portions of the screen that change, so unless you have other applications on outside this region that are constantly changing, VNC is already only sending the changing regions. – Darth Android Jul 12 '12 at 17:02

I don't think it's meaningful to have remote control only on a region of your screen. Once you gave remote user control of your keyboard and mouse, they can easily pull in the rest of windows outside of the display region... If you're giving a read only permission, it might make more sense.

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