X Toolkit is development software for building X Window System applications. Typically includes a widget set, X Toolkit Intrinsics (Xt) libraries for managing the widget set and the X Library (Xlib).

The Xt Intrinsics implement an object oriented interface to C code to allow useful graphical components to be created.

External links

• http://www.darwinsys.com/training/xview-course.html
• http://portal.acm.org/citation.cfm?id=62402.62407
• "comp.windows.x.intrinsics Frequently Asked Questions". faqs.org. 1997-04-18. http://www.faqs.org/faqs/Xt-FAQ/. Retrieved 2008-07-13. 

X Window System
Architecture
Window managers
Extensions
Notable Implementations
Standards
Applications
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