弹球例子代码，描述动画线程与双缓冲的实现。-Pinball example code, descr iption of animation thread and the double buffer implementation.

VC++线程优先级示例程序－赛马，不同优先级执行的程序显示在进度条中，有长有短，像赛马一样，体现出每个线程被执行的优先顺序-VC++ thread priority sample program- horse racing, the priority execution program displays a progress bar with a long or short, like horse racing, reflecting the priority of each thread is