Open Source User Interface (UI) Software

[incr Tcl] is the most widely used O-O system for Tcl. The name is a play on C++, and [incr Tcl] provides a similar object model, including multiple inheritence and public and private classes and variables. Repos now http://core.tcl.tk/itcl and itk

A cross-platform GUI, new language (eC), and 3D engine.

Agar provides a base GUI framework and a standard set of widgets from which graphical applications can be built which run natively under X11, Windows, MacOS, SDL and others. It takes advantage of texture and GPU acceleration wherever available. Agar can also attach to an existing framebuffer, SDL or OpenGL context and operate as a self-contained window-manager. 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.

.NET Assemblies that integrate and expands on various advanced solutions for DataBinding, Reflection, UI Wrapping and more. Fuel your .NET applications with RAD techniques and ready-to-use code that picks up where the .NET framework left off.

Want to build a Java/Swing form-based GUI fast without the baggage of code generation? Is your head spinning from XyzListeners, SwingWorkers, and GridBagLayout? Snap your JComponents onto a 2-D grid, bind them to your properties...GUI accomplished!

Legato is above all a fast and lightweight, complete Web framework offering both server-side (PHP 5) and client-side (JavaScript) components to ease in the development and maintenance of today's demanding Web sites.

A Javascript framework designed for Web Applicaions.

MyAppFW is basic php application framework designed to be used as a base or learning guide for PHP projects that need (Multiple) Template Support, Advanced DB Support, Proper Email handling and some other basic useful functions for live dynamic websites.

Qomo Project is a JavaScript-implemated, custom-cuttable OOP framework (with namespace, AOP, templet ...) and UI Library for Web Browsers. The project is opened for all JavaScript fans, DOM specialists, etc. Hope you join/impulse now.

Simplifed All Gaming Graphical User Interface (SAGGUI). Project aimed towards simplifying inclusion of GUI elements in games. Graphical backends include: Allegro,SDL,and OpenLayer. Font backends include: FreeType. Easily extensible to any other system.

The DDay Project is a collection of open-source class libraries covering an array of .NET technologies. These libraries fill in major gaps in .NET technologies, and attempt to provide a "better way" to develop applications.

UDAE allows developers to access data both locally and over WSN from a variety of sources, such as sensors, communications links and platform components in a unified manner.

mooForm is a class for mootools 1.2 to easily build AJAX forms with a view lines of JavaScript.