About Qt

Qt is a cross-platform C++ GUI application framework. It provides application developers with all the functionality needed to build state-of-the-art graphical user interfaces. Qt is fully object-oriented, easily extensible, and allows true component programming. It is supported on Windows 95/98/NT/2000, Linux, Sun Solaris, HP-UX, Digital Unix, IBM AIX, SGI IRIX and a wide range of other platforms. Since the commercial introduction of Qt in early 1996, Qt has formed the basis of many hundreds of successful applications worldwide. Qt is also the basis of the popular KDE Linux desktop environment, included in all major Linux distributions.

Qt is a product of Troll Tech.

Qt is released under two different licenses:

Qt Professional Edition is provided for commercial software development. It includes free upgrades and Technical Support Service. For the latest prices, please see the Troll Tech web site, Pricing and Availability page, or contact sales@troll.no.

Qt Free Edition is the Unix/X11 version of Qt available for development of free/Open Source software only. It is provided free of charge under the Qt Free Edition License. The latest version is available for download.