F$VERIFY

   Returns an integer value indicating whether the procedure
   verification setting is currently on or off. If used with
   arguments, the F$VERIFY function can turn the procedure and image
   verification settings on or off. You must include the parentheses
   after the F$VERIFY function whether or not you specify arguments.

   Format

     F$VERIFY([procedure-value] [,image-value])

Additional information available:

Return_Value    Arguments       Examples