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x11vnc is a Virtual Network Computing (VNC) server program. It allows remote access from a remote client to a computer hosting an X Window session and the x11vnc software, continuously polling [4] the X server's frame buffer for changes.
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]
In computer networking, LibVNCServer and LibVNCClient are cross-platform C libraries for the VNC server and client implementations. [2] [3] Both libraries support version 3.8 of the Remote Framebuffer Protocol, are fully IPv6-conformant and can handle most known VNC encodings.
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.
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.
RFB ("remote framebuffer") is an open simple protocol for remote access to graphical user interfaces.Because it works at the framebuffer level it is applicable to all windowing systems and applications, including Microsoft Windows, macOS, the X Window System and Wayland.
The VNC server is the program on the machine that shares some screen (and may not be related to a physical display: the server can be "headless"), and allows the client to share control of it. The VNC client (or viewer) is the program that represents the screen data originating from the server, receives updates from it, and presumably controls ...
In Unix and other POSIX-compatible systems, the parent process can retrieve the exit status of a child process using the wait() family of system calls defined in wait.h. [10] Of these, the waitid() [11] call retrieves the full exit status, but the older wait() and waitpid() [12] calls retrieve only the least significant 8 bits of the exit status.