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The software is free and distributed under the terms of the GNU General Public License. It can use an optional mirror driver installed on the remotely controlled computer for fast and efficient notification of screen changes with very low CPU load, [5] although this is not needed since later versions of Windows 10. [6]
A mirror driver is a display driver for a virtual device that mirrors the drawing operations of one or more additional physical display devices.. When video mirroring is active, each time the system draws to the primary video device at a location inside the mirrored area, a copy of the draw operation is executed on the mirrored video device in real-time.
RealVNC is a company that provides remote access software. Their VNC Connect software consists of a server (VNC Server) and client (VNC Viewer) application, which exchange data over the RFB protocol to allow the Viewer to control the Server's screen remotely.
TightVNC is a free and open-source remote desktop software server and client application for Linux and Windows.A server for macOS is available under a commercial source code license only, without SDK or binary version provided. [3]
VNC by default uses TCP port 5900+N, [6] [7] where N is the display number (usually :0 for a physical display). Several implementations also start a basic HTTP server on port 5800+N to provide a VNC viewer as a Java applet, allowing easy connection through any Java-enabled web-browser. Different port assignments can be used as long as both ...
2023-11-06, 8.10.1 Proprietary: Yes No Oracle Secure Global Desktop Software/Sun VDI: AIP: Tarantella/Oracle Inc. 1997 2015-04, 5.2.903 Proprietary: No No Parsec: Proprietary: Parsec Cloud, Inc: 2016 2016-07, 3.5 Proprietary: Yes No Proxy Networks: Proprietary: Funk Software Inc. 1993 2020-01-29, 10.2 Proprietary: No No QVD: NX and HTTP: Qindel ...
Developers can also implement Miracast on top of the built-in Wi-Fi Direct support in Windows 7 and Windows 8. [29] Windows 8.1 supports broadcasting/sending the screen via Miracast. [30] Another way to support Miracast in Windows is with Intel's proprietary WiDi (v3.5 or higher).
x11vnc keeps a copy of the X server's frame buffer in RAM.The X11 programming interface XShmGetImage is used to retrieve the frame buffer pixel data. x11vnc compares the X server's frame buffer against its copy to see which pixel regions have changed (and hence need to be sent to the VNC viewers.)