最全面的描述QT的功能，包括二维，三维图显示。-include all the function of the QT,include 2D 3D

2D，3D饼图类文件，可以实现任意形式饼图，使用GDIPLUS，附带Demo，非常实用。-2D, 3D pie chart class file, you can implement any form of a pie chart, use GDIPLUS incidental Demo very practical.

MyGUI给出的demo的源码，MyGUI是Ogre3D引擎推荐的图形界面库，用于开发游戏的GUI。其开发目标是快速、灵活和易用。-The source code of the demos MyGUI given. MyGUI is a library for creating Graphical User Interfaces (GUIs) for games and 3D applications. The main goals of mygui are: speed, flexibilit