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# Qt Commercial Editions

The Qt Professional and Enterprise Editions are the commercial versions of Qt.

You may only write commercial, proprietary and non-free software if you have purchased the Professional Edition or the Enterprise Edition. The purchase of a Qt commercial edition includes technical support and upgrades. Qt for Microsoft Windows is only available in the Professional and Enterprise Editions.

Qt is supported on the following platforms:

- Microsoft Windows -- 95, 98, NT 4.0, ME, 2000, and XP
- Unix/X11 -- Linux, Sun Solaris, HP-UX, Compaq Tru64 UNIX, IBM AIX, SGI IRIX and many others
- Mac OS X -- Mac OS X 10.2+
- Qt/Embedded -- Linux platforms with framebuffer support.

On Trolltech's web site, you can find licensing information and price lists for Qt Professional Edition, Qt Enterprise Edition, and other Trolltech products.

To purchase, please visit the Trolltech webshop. In the webshop, you can generate a Purchase Order, order a Quote, or buy directly using a credit card.

For further information and assistance, please contact Trolltech sales:

Email: sales@trolltech.com

Phone, US office (for North America): 1-650-813-1676

Phone, Norway office (for the rest of the World): +47 2160 4800

Professional/Enterprise Comparison Chart | Professional | Enterprise
Qt Base Modules (Tools, Kernel, Widgets, Dialogs) The platform-independent Qt GUI toolkit and utility classes. | X | X
Qt Designer Visual GUI builder. | X | X
Iconview module Visualization of sets of pixmaps with user interaction. | X | X
Workspace module Multiple Document Interface (MDI) support. | X | X
OpenGL 3D Graphics module Integration of Qt with OpenGL. |  | X
Network module Platform-independent classes for sockets, TCP, UDP, FTP, HTTP, and asynchronous DNS lookup. |  | X
Canvas module Optimized 2D graphics area for visualization, diagrams, etc. |  | X
Table module Flexible and editable table/spreadsheet. |  | X
XML module Well-formed XML parsers: SAX2 and DOM Level 1. |  | X
ActiveQt extension Support for building and hosting ActiveX controls on Windows. |  | X
QMotif extension Motif co-existence and migration support. |  | X