Text box within the GUI for the printerdriver

[franz.pfoertsch.brose]

>
> Normal options are just "pick from a list" or boolean.  Custom options
> can be used to allow user-entered values, but you'll still need a few
> choices for apps that don't support custom options.
>
> See the custom option information here:
>
>      http://www.cups.org/documentation.php/spec-ppd.html
>
Please give a small example to build up  a ppd with custom option textfield.

Which application a able to use this ppd?

regards
franz