How to create barcode from formula?

Hello

I have a formula field:

tonumber('29'+{Artigo.CDU_gs1}+{@fxPeso})

where 29 is a fixed value, {Artigo.CDU_gs1} is a nvarchar  and {@fxPeso} is a parameter field.

This returns 29+04704+0093 = 29047040093 and I want to tranform this result into a barcode.

Thanks in advance.

Manuel Duarte