设计一个界面，完成按钮等控件的实现，窗体，回调函数等的实现-Design an interface implementation of the Finish button and other controls, forms, implementation of the callback function, etc. ... ...

Windows程序运行原理及程序编写流程，窗口产生过程，句柄原理，消息队列，回调函数-Windows programs running principle and programming process, the the window generation process, handle principle, message queues, the callback function