XD++ Class Library is a set of classes built on the Microsoft Foundation Classes. XD++ was designed from the start to be a reusable class library XD++ supports Documents, Views, and Graphical Objects such as rectangles, ellipses, polygons, metafiles, text, bitmaps, and lines. Objects can be grouped together in a hierarchical structure, forming arbitrarily complex visual objects from basic XD++ objects.With XD++ add in tool you can easy definition of specialized graphical objects containing other objects.XD++ adds graphical diagram interfaces to your MFC applications quickly and easily. Features: 1.XD++ View object supports mouse-based object ipulation, including selection, resize, moving,alignment,oderment,and "active" dragging (moving a visual image, not just an outline). 2.XD++ Document object supports MFC archiving, making it easy to save and restore graphical objects, visual layout, and application-related data. 3.XD++ also provides support for composing and manipulating graphs (node & arc diagrams). 4.XD++ Class Library is designed to be flexible and extensible. All objects are easily subclassed for application-specific specialization. New graphical objects can be easily added to the existing framework.It also supports double-buffering, real-time dragging, and Windows metafiles for full-resolution printing. 5.You can customize both the display and the interactive behaviors of your application using standard components, such as toolbars, menus, and mouse-event handling. 6.A eval version with prebuild source code is placed on our website,visit http://www.ucancode.net for more information.