| 
        
        Parameter
         | 
      
        
        Type
         | 
      
        
        Description
         | 
     
| 
        
        IN
         | 
      ||
| 
        
        hValExpList
         | 
      
        
        DAM_HVALEXP_LIST
         | 
      
        
        The argument list handle as passed into the scalar function.
         | 
     
| 
        
        RETURN
         | 
      ||
| 
        
        DAM_HVALEXP
         | 
      
        
        The handle to the first argument, or NULL if at the end of the list.
         |