Printing to Printer via Device Driver

Is it possible to print via the device driver in C++. I know how to print directy to the parallel port, but with this method you cant change the font type and size.

When printing to the device driver can you show me some source code on how and explain how to change the font type and size.

I can print to the parallel port but only Capital Letters, Numbers and Hash.

Is there anyway I print out every character, think I need the printers control codes??