在VC++的窗体按钮上播放AVI动画的类示例源程序，当在静止状态的时候，按钮上动画会不停播放，给平静的窗体增加一点动感元素，这个类使用起来挺方便-Play AVI animation class in VC++ example source code form button when in a stationary state, the movie will keep playing on the button, to calm a little more dynamic form elemen