char field as search help with its own serch help exit

Hello.

I have created a serchhelp through SE11.

It has one field. It is a character field (CHAR020).

This field is a dictionary field (own created data element).

How can I address this field inside

the serch help exit if I want to relate

to this field in order to say e.g.

-> write: no_ddic-field.

-> or to call a function module.

Regards

Ilhan Ertas