...It includes a standard library of general-purpose widgets, and is also designed to be extended externally. New widgets can be implemented as part of an application or library. Complex user interface elements can be realized often in few lines of code. Agar is also extensible at the low-level. The low-level API is documented such that modular drivers can be written which enable Agar applications to work seamlessly under many platforms graphics systems without any change at the application level.
Patlac--Xml2cpp is a totally customizable code generator that generates classes (c++ for now) automatically from a xsd schema. Classes are described in google-ctemplate files and a xml options file allow precise definition of projects.
Key Objects Library and Mirror Classes Kit (KOL&MCK) for Delphi
Key Objects Library and Mirror Classes Kit (KOL&MCK) and attendant components for Delphi from Delphi2 to DelphiXE is an alternative to VCL to create small applications for Windows platform, freeware with sources. Project was started in 2000, dozens of programmers have created a lot components, helped in fixing a lot of bugs, write pieces of code in the KOL itself.
The Micro C++ Library (libmicxx) is a small set of portable and easy to use classes providing core features commonly used in modern applications. It is based completely on the Standard C++ Template Library (STL).
C++ production ready implementation of Scott Seely's Simple SOAP RPC code. OS neutral, HTTP transport, XML validation, envelope parsing, RPC dispatching, extendable data types, fault generation and a extendable test suite useful for release validation.
Now builds on newer versions of Linux.
GWT is an flexible and object-oriented 2d game engine. It uses Code::Blocks and is based on SFML2 to give the ability to port your code to multiple platforms.
With the integrated all-in-one tool for game resources it's possible to develop games in a short time.
And it's open source! (license coming soon)
Status: planning phase
Property/configuration mechanism for high-performance C++ applications. Similar to but more flexible than Java properties. Property settings provide type safety, expressive error messages and full-featured expressions. Based on the Lua language.