I´ve used a class for programming serial port. This class has code in order to use unicode. My problem is that when I press an A for example, my program send and extrange code as greek characters. I think that is due to unicode but i don´t know how to disable this option.
Are U writting the program in VC++ ?. Your Question is not fully clear. But I can suggest the following if U are using VC++.
_T('A') is the character if You are sending to COM port it can be interpreted with or without unicode depending upon the preprocessor declared for _UNICODE. This is set in the environment of IDE.