使用dirext实现3d显示图片，可以翻转，放大缩小，还可以绕轴旋转。-3d shows that the realization of the use of dirext picture, you can flip, zoom, you can rotate around the axis.

简单的饼图图表控件，有3D效果的功能，老外编写.-Simple Pie Chart Control- Improved 3-D Pie Chart