利用api实现串口通信，实例，欢迎参考，运行c++builder即可参考-Serial communication using api, examples, please refer to run c++ builder can refer to

使用TAPI开发的电话接听、挂机的源程序,请配套下载本人提供的atapi.zip一起使用-Development of the use of TAPI phone calls, hang up the source code, please download the package provided by atapi.zip I used in conjunction with