>Hi,
>
>I have a function that receives a parameter, an array. The code is as follows:
>
>

>Function MyFunc
>LPARAMETERS tParam1, tParam2, taMyArray
>EXTERNAL ARRAY taMyArray
>

>
>I need to add the 4th parameter. In the case of the 4th parameter the 3rd is not necessary. If I pass the 3rd parameter (taMyArray) set to NULL will I have a problem? Since the next line (EXTERNAL ARRAY taMyArray) expects this parameter to be an array.
>
>TIA

You wouldn't have any problem. You could as well pass anything.