Printing Qt

ok i have a question about printing. first of all i am still learning Qt on the way i programming my program. And i need to include printing for my program. The program i am making is billing and register software. and i dont yet know how to print, but my question is.

what is the right way to do like templates for different printing layouts or what do you recommend for doing this, Xml or is there any other way. And is there any tutorials for doing this

The company I work for uses XML and XSLT to generate HTML code which is then printed or converted to pdf.