Handling document creation

["Arthur Maciel" <arthurmaciel gmail com>]

Hi there.

I want to create a gtkmm program to handle medical prescription
recipes, giving to the user the possibility to creat a header, a
footer, and, as he wants, typing the name of the specifc compund(s)
and its(their) posology. The user should be able to visualize it,
before printing.

Two questions here:
1) How to handle this document creation/visualization process? Is
there any widget that can hold this?

2) Is there any portable printing interface that can be used to manage
the final document printing among many OS?

I appreciate your attention and help.

Regards,
Arthur Maciel