SetVerify()

         Changes/Determines the DOS verify flag

    Syntax:

         SetVerify( [lNewValue] ) -> lOldValue

         lNewValue : A optional logical value indicating the new value of
                     the DOS verify flag

    Description:

         Changes and determines the value of the internal DOS verify flag.

    Return:

         Returns .T. if verify flag is ON .F. if it isn't.

    Example:

         BoxWarning ( "Verify flag is " + If( SetVerify(), "Yes", "No" ) )