change print settings inside begin-print

[Andrea Zagli <azagli libero it>]

as the object (i mean the GtkPrintSettings of the GtkPrintOperation  
passed to the signal)

does it work? i have tried but it doesn't seem to work

i want to change, for examples the number of copies, inside the signal  
and not before calling gtk_print_operation_run because i want to print  
the copies that i programmatically set and not the copies the user wants

thanks in advance