Access to NEW.column outside of a trigger function. - Mailing list pgsql-general

I have a check constraint that runs a PlPgsql function which returns a pass/fail status which the constraint uses to allow or disallow the value.  This is not a trigger function.  It's just a plain-ole PlPgsql.  Is there a way I can read (not write, just read) the NEW.column  values that a trigger function would normally have access to?

Thanks in Advance for any help.