20#ifndef INCLUDED_SW_INC_FLYENUM_HXX
21#define INCLUDED_SW_INC_FLYENUM_HXX
@ NOT_EMPTY
Only empty frames may be connected.
@ IS_IN_CHAIN
Destination already in chain.
@ SOURCE_CHAINED
Source already has a follow.
@ SELF
Self-chaining is not allowed.
@ WRONG_AREA
Destination in section where it shouldn't be (header, footer).