Saturation is given to tracing, and fading to the main drawing. Trace editing enabled. Editing the main drawing disabled.

eOk if traceFront is executed successfully.

• eAlreadyInactive if no open trace.
• eNotInDatabase if this OdTraceRuntime does not have a reference to dwg database.
• eLongTransReferenceError if can't start editing a trace.

remarks Sets value '2' to the database system variable TRACEMODE