UndefinedEvents  1694 magick/log.c       log_info->event_mask=UndefinedEvents;
UndefinedEvents  1238 magick/option.c     { "Undefined", (ssize_t) UndefinedEvents, MagickTrue },
UndefinedEvents  1258 magick/option.c     { (char *) NULL, (ssize_t) UndefinedEvents, MagickFalse }
UndefinedEvents   469 wand/compare.c             if (event_mask == UndefinedEvents)