I'm a Computer Science major at a small university that teaches C++. Recently I've started to do some research on my own, because I don't believe my university is teaching me everthing I need to know and I came across tchar. What and how do you use tchar? I tried searching but I couldn't fine much information and when I tried to use tchar in a program I got undefined variable and usee I did include the header file tchar.h. Thanks for your help.