Transparency in C?

I normally work in Visual Basic.Net but I am trying to learn C++ and I've came across a C example program with my IDE and editied a bit and wanted to know how to add transparency as easily as possible. Give good links and get 10 points!

Transparency in C?
try these


http://www.kasamba.com/Advice/Browse/Vie...


http://www.traininghott.co.uk/Courses/C%...


http://www.cplusplus.com/doc/tutorial/+


http://www.e-learningcenter.com/c_progra...


http://www.amazon.com/gp/richpub/syltgui...


http://www.cdlearning.com/CPP.html