Many serial interface mode assistant source online there is a problem, but this is to run very efficient,
O analyze the software, the problem involves the following several aspects:
1. The software to start the process (why would jump to CComWnd: : on_create ())
2.3 the running mechanism of thread (event thread, read a serial port thread, write a serial port thread)
Software interface
Software source code
https://github.com/movsb/common
The official website
https://blog.twofei.com/566/