>Hi,
>
>I need to display a listbox with matter that is passed on through a function-parameter.
>

>use DataTable
>do lookup with [ bookhd + ' (' + bookcd+booksr + ')' + ' |' + str(bookno1,6) ]
>
>function lookup
>paramater gcListMatter
>do form lookup
>

>If I pass a single field there is success
>i.e.
>

>RowSource = [bookhd]
>RowSourceType = 6-Fields
>

>It would be helpful to call the function by various means if I could use function-parameter.
>
>Thanks in advance.

There is no need to send the same question more than once.

If nobody was answered to your first question then there are two conclusions you could make:
1. Nobody knows the answer (i.e. there is no way to do what you ask).
2. Nobody understands your question (Count me here).