The following subprograms are available for manipulating Symbols etc.
UI_DEFINE_SYMBOL ) Define Symbol UIDFSB )
UI_DROP_SYMBOL ) Deassign (Drop) Symbol UIDRSB )
UI_FETCH_SYMBOL ) Fetch Symbol Equivalence UIFHSB ) Text String
UI_IMPORT_SYMBOL ) Import External Symbol UIIMSB ) from Operating System
UI_LOCK_SYMBOL ) Lock a Symbol UILKSB )
UI_UNLOCK_SYMBOL ) Unlock a Symbol UIULSB )
UI_NEXT_SYMBOL ) Fetch Information for next UINXSB ) Symbol
UI_DEFINE_SYMBOL_LENGTH ) Define Significant
UIDFSL ) Length for Symbols