SetListKey()
 Set or get the key for LIST and DBLIST clauses.
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 Syntax:

     SetListKey( [<nKey>] ) --> <nListKey>

 Arguments:

     <nKey> is the scan code value of the key to use as the list key.

     <nListKey> is the current key.

 Returns:

     SetListKey() always returns the current list key.

     SetListKey() is used to set or fetch the current list key (activate
     the DBLIST or LIST clauses within a get.

     SetListKey() by default is K_ALT_DOWN.  Setting SetListKey()
     to 0 turns its use off.


 Files:  Library is CUACLIP.LIB.