XML-RPC is a quick-and-easy way to make procedure calls over the Internet. It converts the procedure call into XML document, sends it to a remote server using HTTP, and gets back the response as XML.

This library provides a modular implementation of XML-RPC for C and C++....

OMERO is modern client-server software for visualising, managing, and annotating microscope images and metadata. The OMERO components also provide image importing, archiving, protocol recording, and user administration. OMERO consists of a Java server, several Java client applications, as well as Python and C++ bindings and a Django-based web application....

Wt (pronounced 'witty') is a C++ library and application server for developing and deploying web applications.

It is not a framework which tends to enforce a way of programming, but is a widget library.

The API is widget-centric, and inspired by existing C++ Graphical User Interface (GUI) APIs. To the developer, it offers complete abstraction of any web-specific implementation details, including event handling and graphics support....

LevelDB is a library that implements a fast key-value store.

Features * Keys and values are arbitrary byte arrays. * Data is stored sorted by key. * Callers can provide a custom comparison function to override the sort order. * The basic operations are Put(key,value), Get(key), Delete(key)....

XBoard is a graphical user interface for chess in all its major forms, including international chess, xiangqi (Chinese chess) and shogi (Japanese chess), in addition to many minor variants such as Losers Chess, Crazyhouse, Chess960 and Capabanca Chess. It displays a chessboard on the screen, accepts moves made with the mouse, and loads and saves games in Portable Game Notation (PGN). It serves as a front-end for many different chess services (local engines, internet chess servers, correspondence chess). It runs on many Unix platforms and there is also a Windows version called Winboard....

MXE (M cross environment) is a Makefile that compiles a cross compiler and cross compiles many free libraries such as SDL and Qt. Thus, it provides a nice cross compiling environment for various target platforms.

PHP-Qt is a language binding for Qt that allows you to write Qt application with the PHP language. Its goal is being a base and supplement for further bindings such as Akonadi, Plasma and other KDE related software as well as enabling PHP developers to write desktop applications....

The Genode operating-system framework extends existing kernels (e.g., microkernel or hypervisor) and provides a uniform API for applications. Kernel support: L4ka::Pistachio, OKL4 (ARM, x86), CodeZero, NOVA, L4/Fiasco, and Linux (x86-32, x86-64)

A simple but powerful tool with a flexible module system which will help you in your digital forensics works, including file recovery due to error or crash, evidence research and analysis, etc. Digital Forensics Framework (DFF) provides a robust architecture and some handy modules....

The CImg Library is an open-source C++ toolkit for image processing. It consists in a single header file 'CImg.h' providing a set of C++ classes and functions that can be used in your own sources, to load/save, process and display images. Very portable (Unix/X11,Windows, MacOS X, FreeBSD,..), efficient, easy to use, it's a pleasant toolkit for coding image processing stuffs in C++....