使用标准控件 Microsoft Communications Contro 进行串口设置，串口读写，读写输入输出缓存。-using standard controls for Microsoft Serial Communications Contro set, serial literacy, reading and writing input and output buffers.

自制对话框，用九宫格方法绘制边框背景及对话框的拖动，大小改变的实现-Home dialog box, using squares method of drawing the background and borders dialog box, drag, size changes in the realization of

简单的ATL 对话框，方便初学ATL的同学理解ATL-simple ATL Dialog