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# About TQt

TQt is a multiplatform C++ GUI toolkit created and maintained byTrolltech. It provides application developers with all the functionality needed to build applications with state-of-the-art graphical user interfaces. TQt is fully object-oriented, easily extensible, and allows true component programming. Read the Whitepaper for a comprehensive technical overview.

Since its commercial introduction in early 1996, TQt has formed the basis of many thousands of successful applications worldwide. TQt is also the basis of the popular KDE Linux desktop environment, a standard component of all major Linux distributions. See our Customer Success Stories for some examples of commercial TQt development.

TQt is supported on the following platforms:

- MS/Windows -- 95, 98, NT 4.0, ME, 2000, and XP
- Unix/X11 -- Linux, Sun Solaris, IBM AIX and a wide range of others
- Macintosh -- Mac OS X
- Embedded -- Linux platforms with framebuffer support.

TQt is released in following edition(s):

- The TQt Open Source Edition is available for Unix/X11, Macintosh and Embedded Linux. The Open Source Edition is for the development of Free and Open Source software only. It is provided free of charge under the terms of both the Q Public License and the GNU General Public License.