Search help: Returning a value using function modules

So I'm trying to create a program where the user can make use of a search help, and if this is done, another parameter field will be automatically filled in as well.

I know this can be done using the following FM's:

- dynp_values_read
- f4if_get_shlp_descr
- f4if_start_value_request
- dynp_update_fields

And having to use a loop on certain things.

But I'm really unsure whether or not i can get this to work (since I'm a newbie on ABAP, and I'm still learning).

If anyone could assist me I'd be very happy, because this'll be another chance to learn more.

Thanks in advance.