Unicode

Hi fellows...
How unicode is used in C++? Which header file is required(i think tchar but not sure ). Can some one guide me with an example... Thanks in advance
'Unicode' is not used in C++ as it is just an encoding.
There is the type wchar_t which is bigger than a char so it allows more values.
Is up to you knowing the encoding, standard C++ provides nothing for it but you may look for external libraries
During searching, i found ASCII codes for arabic alphabets.
http://www.ascii.ca/cp864.htm
And some one told me to change the codepage and the font. How to do this...
Its challenge for me and for all of you. Thanks
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