XView was developed by Sun Microsystems and is derived from Sun's proprietary programming toolkit, SunView. It is an easy-to-use object-oriented toolkit that provides an OPEN LOOK user interface for X applications. For XView Version 3, the major additions are: Internationalization support for XView programs. A new Drag and Drop package that lets the user transfer data between applications by dragging an interface object to a region. A mouseless input model that means XView applications can be controlled from the keyboard without a mouse. Soft function keys are also supported. The Notices package has been completely rewritten to incorporate Notice objects. The Selection package has been rewritten, replacing the SunView- style selection service. New panel items such as multiline text items and drop target items have been included. The Panels chapter has been reworked to clarify and simplify panel usage. XView Version 3.2 includes minor bug fixes with no significant new functionality. The XView Reference Manual has been expanded from the Attribute Summary of the previous edition of the XView Programming Manual and is now published as a companion volume. The XView toolkit provides extensive attribute-value pair combinations, convenience routines and object class hierarchies that are too voluminous to memorize without the aid of this comprehensive reference guide. It contains alphabetical listings of XView attributes, functions, and macros, as well as other reference information essential for XView programmers. A must-have companion for the XView Programming Manual .