可以显示圆盘时钟。利用双缓存的方法可以解决闪屏问题。同时，利用GetBkColor可以解决解决双缓存带来的内存块黑屏的问题。-You can display disc clock. Using double-buffering method can solve the problem of the splash screen. At the same time, the use of GetBkColor can solve the problem of solving the dual cac