How to convert a ANSI project into a UNICODE one?
<p>I have a ANSI C++ project developed by Visual Age. I want to convert it into Unicode so it can
display multi-lingual characters correctly in an English operation system. I changed all the <code>char</code> variables into <code>wchar_t</code> after defining the <code>UNICODE</code> macro.</p>

<p>Is this the right way to do it? There are some APIs in the source code only accept <code>char*</code> strings (such as <code>system()</code>, <code>fopen()</code>, <code>mkdir()</code> ). How can I make them work with <code>wchar_t</code> strings since all of the strings in the code are changed into <code>wchar_t</code>?</p>
