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Cross-platform, rich client application development framework Qt is a comprehensive application and UI framework for developing Mac applications that can also be deployed across many other desktop and embedded operating systems without rewriting the source code.Qt sets the standard for high-performance, cross-platform application development. It includes a C++ class library and tools for cross-platform development and internationalization. Qt also provides unique solutions to inter-object communication, goes beyond C++ to add flexibility for advanced GUI development and provides a special edition for back-end server applications.Qt is a comprehensive development framework that includes an extensive array of capabilities, features, and tools that enable development of cross-platform, high-performance rich-client and server-side applications.Qt is the leading framework for native cross-platform application development. The Qt API and tools are consistent across all supported platforms, enabling developers to learn one API and perform truly platform-independent application development and deployment.Qt developers only have to learn one API to write applications that run almost anywhere. We have put considerable effort into making Qt as easy to use and intuitive as possible. Customers tell us that we succeeded: they find Qt programming simple and enjoyable. For the business this translates into more functionality and less maintenance without having to sacrifice quality. The uniform cross-platform API lets programmers concentrate on value-adding innovation, instead of worrying about maintaining and administering infrastructure and interfaces for multiple versions of existing applications.NOTE: Qt is offered to the Open Source community under Trolltech's Dual Licensing Model. Therefore it is freely available for the development of Open Source software governed by the GNU General Public License (GPL version 2). For proprietary, commercial development conditions and for further licensing details please visit http://trolltech.com/products/qt/licenses/licensing/opensource. Here are some key features of "Qt": · Qt is Comprehensive · Qt is Cross-Platform · Qt is Easy to Use · Qt is Open Source · Qt is Proven · Intuitive class library · Integrated development tools · Support for C++ development · Universal Binaries support · Support for 64-bit applications on top of Cocoa APIs What's New in This Release: More platforms: · Qt 4.6 includes support for the Symbian platform for the first time, and also adds Windows 7, Apple Mac OS 10.6 (Snow Leopard) and the upcoming Maemo 6 to the list of Qt supported platforms. Also available is community support for real-time operating systems QNX and VxWorks. Support for Maemo 5 is also currently in development, with the second technology preview being released today. · Qt support for Symbian and Maemo creates the first opportunity for developers to target both of these platforms from the same codebase. Being able to share code across platforms means that the applications they create will reach the market faster and reach a broader audience of device users. · Also released today is a technology preview of new Qt APIs from the Qt Mobility project. These cross-platform APIs provide developers with functionality such as location for navigation-type devices, as well as messaging, contacts, and bearer management. More eye candy: · Qt 4.6 builds upon the graphical improvements of 4.5 and enhances them with the addition of new Animation Framework – including intuitive state machine functionality – plus new advanced graphics effects like opacity, drop shadows, glow, and filtering. More fingers: · One of the most exciting new features in Qt 4.6 is the ability to create multi-touch applications. New multi-touch and gesture based input methods such as flicking and kinetic scrolling make Qt 4.6 a powerful framework for creating dynamic, tactile ways for users to interact with applications and devices. More horsepower: · Qt 4.6 challenges the conventional development notion that advanced UI capabilities normally come with a significant performance cost. Extensive work has been done to deliver the best possible performance while enabling developers to deliver the “wow” effect that is demanded by users. · Key performance improvements come in the form of a highly optimized, re-written Qt GraphicsView rendering algorithm, a new OpenGL paint engine, WebKit, 2D vector graphic support using OpenVG, and new DirectFB support. Updated tools: · Complementing the release of Qt 4.6 is an updated release of Qt Creator, a cross-platform IDE for Qt development. Qt Creator 1.3 and Qt 4.6 together form the Qt SDK which contains everything developers need to create cross-platform applications.

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