DLL exporting functions, variables, class

Hi all,
Can anyone help me with a small sample code that how can I export a class fm a dll in Qt.
I want to make a base class in a dll n want to inherit a derive class from this base class in my application.
can anyone tell me how this is done in Qt? or please specify any links from where i can get some useful information. i want to do it in Qt not in pure C++.

Thanks in advance.
Shuchi

http://www.qtcentre.org/forum/f-qt-p...post34386.html