I am trying to design a UDF to return "Found" if a piece of string is present
in a text, either manually inserted or by a cell address. What's wrong with
the following code:

Function FndTxt(aax As String, bbx As String) ', bbx As String)
If aax.Text = aax.Find(bbx.Text, , , , , , True).Text Then
FndTxt = "Found"
Else
FndTxt = "Not Found"
End If
End Function