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FOX is a C++-based toolkit for GUI development. It includes a rich set of widgets and includes layout managers, MDI widgets, and mega-widgets. FOX incorporates support for XDND for drag and drop, X clipboard and X Selection, watching other I/O channels and sockets, timers and idle processing, object serialization and deserialization, a registry to save persistent settings, and 3D widgets using Mesa or OpenGL. FOX emphasizes speed, and minimizes memory use by letting programmers create and destroy GUI elements on the fly. Widgets can connect to each other and pass certain commands between them, which also reduces the amount of code needed. Finally, GUI elements automatically update themselves by interrogating the application's state, so it is easy to maintain the state of the GUI in an application.


Developer's introduction available in HTML format from


Download version 1.4.22 (stable)
released on 9 November 2005


Related Projects


LicenseVerified byVerified onNotes
LGPLJanet Casey5 March 2002

Leaders and contributors

Jeroen van der Zijp Maintainer
See the AUTHORS file in the distribution for a complete list Contributor

Resources and communication

Audience Resource type URI
Help Mailing List Info/Archive
Bug Tracking,Developer,Support Mailing List Info/Archive

Software prerequisites

This entry (in part or in whole) was last reviewed on 31 October 2005.


Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

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