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[680 users on Ohloh]
The K Desktop Environment (KDE) is a graphical desktop, a set of applications and a development platform. It is created by a community of people dedicated to create a free and user-friendly computing experience. KDE offers all necessary means to easily build all kinds of applications upon.

KDE has been around since 1996, with code change history dating back at least to 1997.

KDE is one of the biggest free software C++ project around and one of the two leaders of unix desktops.

[223 users on Ohloh]
Qt is a cross-platform application and UI framework. Using Qt, you can write applications once and deploy them across many desktop and embedded operating systems without rewriting the source code.
KDElibs (KDE)
[145 users on Ohloh]
The KDE libraries, basis of KDE and used by many open source projects. They are based on Qt, Trolltech's cross-platform toolkit, and run on Linux, BSDs, and other Unices, as well as Microsoft Windows and Mac OS X.

Licensed under GNU LGPL, they may be used by open source and proprietary applications.

KDevelop IDE
[107 users on Ohloh]
The KDevelop project was founded in 1998 to build up an easy to use IDE (Integrated Development Environment) for KDE. Since then, the KDevelop IDE is publicly available under the GPL and supports many programming languages.
Clutter Toolkit
[14 users on Ohloh]
Clutter is an open source software library for creating fast, visually rich and animated graphical user interfaces.

Clutter uses OpenGL (and optionally OpenGL ES) for rendering but with an API which hides the underlying GL complexity from the developer. The Clutter API is intended to be easy to use, efficient and flexible.

[6 users on Ohloh]
Ultimate++ is a C++ cross-platform rapid application development suite. It includes a set of libraries (GUI, SQL, etc..), and an integrated development environment.

Rapid development is achieved by the smart and aggressive use of C++ rather than through fancy code generators. In this respect, U++ competes with popular scripting languages while preserving C/C++ runtime characteristics.

Visual Component Framework
[5 users on Ohloh]
The Visual Component Framework is a cross platform C++ application framework that offers a modern, clean architecture. It is divided into three major libraries. The FoundationKit provides services such as file access, streams, threads, synchronization primitives, and advanced RTTI features. The GraphicsKit includes classes for working with both image and vector graphics, and has built in support for the Anti-Grain Graphics library. The ApplicationKit provides GUI controls, use of the Model-View-...
[4 users on Ohloh]
DWT stands for D Widget Toolkit, a slight naming variation from its parent project -- the Standard Widget Toolkit of Java Eclipse Project fame (SWT). The DWT goal is to achieve for the D Language something similar to Java SWT's notable accomplishment: it is a large, feature-rich GUI library encouraging excellent application portability while retaining platform-specific widget "look and feel".
[3 users on Ohloh]
In fact is just freeware but ohloh add license page does not work!
[3 users on Ohloh]
Vexi is a platform for creating and publishing Graphical User Interfaces that can be used over the Internet or an intranet. It features a very simple and powerful syntax based on XML and JavaScript, a set of complete, extensible, themable widgets, and a sandbox-like security model to protect users.
[2 users on Ohloh]
Ellogon is a multi-lingual, cross-platform, general-purpose language engineering environment, developed in order to aid both researchers who are doing research in computational linguistics, as well as companies who produce and deliver language engineering systems. Ellogon as a language engineering platform offers an extensive set of facilities, including tools for processing and visualising textual/HTML/XML data and associated linguistic information, support for lexical resources (like creating ...
[2 users on Ohloh]
A GUI Frontend to IzPack built with Java Swing to create an installer for your application. Installers are cross-platform, multi-language and very versatile to fit your needs.
[2 users on Ohloh]
wxMax is a cross-platform BlitzMax language binding for wxWidgets, bringing a full-featured, native UI toolkit to BlitzMax applications.

It mirrors the same object-oriented API as implemented by wxWidgets itself, and is available for Linux, OS X and Win32 platforms.

As well as the core functionality of wxWidgets, we also provide extra 3rd-party contributions with the distribution, such as wxPdfDocument, wxPropGrid, wxScintilla and wxSheet.

Big brother (the other one)
[1 users on Ohloh]
Big Brother is the simplest tool for monitoring IP-network for troubles. It gives a comprehensive picture of what happened to any point on the Net that has been put in.
[1 users on Ohloh]
MinWin is a multi-platform GUI toolkit for the D programming language.

The MinWin toolkit takes the "native wrapper" approach. That is, rather than reimplementing widgets, it simply provides a uniform interface to existing windowing toolkits like Win32 and GTK. It officially supports Windows and Linux. Possibly more via the GTK backend.

[1 users on Ohloh]
libNUI is a hardware accelerated GUI framework that makes it possible to build rich multi-platform applications based on 3D rendered dynamic layouts. Interfaces are built as a composition of widgets and behaviors, and the framework handles positioning, resizing, anchoring, and texture stretching. Objects are connected with synchronous events and delegates for mono-threaded communication, or asynchronous notifications and message queues are used for multi-threaded applications. It also supports s...
[1 users on Ohloh]
White is a .NET UI automation library and toolkit for Windows. White supports all rich client applications, which are Win32, WinForm, WPF and SWT (java).
It is .NET based and hence you wouldn't have use proprietary scripting language. You can use your favourite .NET language, IDE and tools for developing tests/automation programs. White provides consistent object oriented API for all kinds of applications. Also it hides all the complexity of Microsoft's UIAutomation library and win...
[0 users on Ohloh]
Win32URL is an open source URL manager for Windows XP/Vista. It's a small application minimized to system tray which will monitor clipboard for www, email or ftp links that were copied by user from any text with Ctrl+C. When Win32URL recognizes URL in clipboard, notyfication tip pops up and URL is saved in the data base, when user clicks on a notyfication tip, link is launched in default browser or client. Saved links can be validated, editet, deleted or user can create shortcut on desktop from ...
[0 users on Ohloh]
Opener Chat is a kind of multi-user and multi-protocol online communication software which is like Pidgin (gaim).

Opener Chat is completely programmed by Perl which consists of the graphical interface part and net part. Now we use the module of win32::GUI to carry its interface into effect, so this software can only run on the win32 platform.

[0 users on Ohloh]
TnFOX is a modern, secure, robust, multithreaded, exception aware, internationalisable, portable GUI toolkit library designed for mission-critical work in C++ and Python forked from the FOX library. It replicates the Qt API in many places and has been designed primarily for Tn, the port of Tornado to FOX.