本程序演示了如何在Graph中加入自己指定的Filter，也可以通过枚举来得到系统中的符合自己需求的Filter，并演示了如何将这些Filter连接起来，非常适合初学DirectX者学习。-This procedure demonstrates how to add their own at Graph designated Filter, can also be obtained through the enumeration system to their needs in line wit