# libvncd

![](https://img.shields.io/badge/written%20in-C%2B%2B%20%28ASIO%29-blue)

A VNC server providing a custom framebuffer.

You can inherit from the `VncdConnection` class as per the sample, and respond to the simple framebuffer and input callbacks. This design allows using the VNC/RFB protocol as a wrapper for arbitrary graphical tasks.

## Features

- Supports raw, zlib, ZRLE, and TightPNG image encoding
- Supports optional VNC authentication
- Single-threaded asynchronous design supporting multiple simultaneous clients
- Tested working with TightVNC Viewer 2.7 and RealVNC Viewer 4.1
- Tested compilation with Visual Studio 2013, but cross-platform/compiler ports should be trivial
- Designed to be connected to a custom framebuffer implementation

## License

Unlike most other VNC implementations (e.g. `libvncserver`, `QEMU-kvm`, and `RealVNC`), no code in this project is based on the original GPL'd source code release of AT&T VNC. This project is a clean implementation from RFC6143, made freely available under non-copyleft software license (along with all its bundled dependencies):

- libvncd, by the libvncd author. (ISC license)
- ASIO, by Christopher M. Kohlhoff. (Boost Software License)
- D3DES, by Richard Outerbridge. (Public Domain)
- miniz, by Rich Geldreich. (Public Domain)
- X11 (for `keysymdef.h`), by The Open Group. (MIT/X11 License)

## See Also

- https://tools.ietf.org/rfc/rfc6143.txt
- http://vncdotool.readthedocs.org/en/latest/rfbproto.html

## Changelog

2015-09-13 r61
- Initial public release
- [⬇️ libvncd-r61-src.7z](dist-archive/libvncd-r61-src.7z) *(325.49 KiB)*