This is a cross-platform framework for building virtual cameras. Virtual cameras offer the same interface as regular cameras to client applications (such as Skype), but provide user-generated or user-modified imagery rather than imagery directly from a camera. While ucanvcam comes with a set of special effects, the main intent is to make building virtual cameras easier for people without OS-specific knowledge, so they can focus purely on image processing.

Glux (OpenGL Utility & Auxiliary Library) is a flexible C++ library to aid development in OpenGL. It offers an interface similar to GLUT but adds some niceties, like GL 3.0 contexts, image loading and application control over the main loop.

OpenAL Soft is a cross-platform software implementation of the OpenAL 3D audio API. It's built off of the open-sourced Windows version available originally from the SVN repository at openal.org.

POCO, the C++ Portable Components, is a collection of open source C++ class libraries that simplify and accelerate the development of network-centric, portable applications in C++. The libraries integrate perfectly with the C++ Standard Library and fill many of the functional gaps left open by it. Their modular and efficient design and implementation makes the C++ Portable Components extremely well suited for embedded development, an area where the C++ programming language is becoming increasingly popular, due to its suitability for both low-level (device I/O, interrupt handlers, etc.) and high-level object-oriented development.

Pth is a very portable POSIX/ANSI-C based library for Unix platforms which provides non-preemptive priority-based scheduling for multiple threads of execution (aka ``multithreading'') inside event-driven applications. All threads run in the same address space of the server application, but each thread has it's own individual program-counter, run-time stack, signal mask and errno variable. The thread scheduling itself is done in a cooperative way, i.e., the threads are managed by a priority- and event-based non-preemptive scheduler.

GSK is a portable framework for writing flexible servers and clients in C. It includes builtin support for HTTP and DNS as well as base 64, hashing functions, lowlevel network information (like ifconfig), efficient buffering, abstract socket i/o, and abstract datagram sockets.

Native self-contained easy to install packages of popular opensource web applications like wikis, forums, blogs, project management, asset management, content management and portals.

A platform independent 2d game programming framework for c programmers with least possible dependencies for easy porting and with focus on easy api calls and the requirement of commercial programmers