[gtkmm] Reporting library in C++ ?

[cedric <cedric probesys com>]

Hi,
Nothing to do with GTKMM but i'd like to give reporting & printing 
capabilities to my application.
I'm coding in C++ and GTKMM and i would like to print a bill for 
example, or other sorts of report.

I searched on the web, found libraries but they are not documented or 
not GPL or not platform independent !
I'm trying libHARU, found at sourceforge.net, but very very difficult to 
use.

So , someone have any idea to make it easily ? someone have experience 
on doing that ?

thanks !

Seb.