Rational® Rhapsody® defines several special ID values, as follows:
| Rational Rhapsody ID | Value | Description |
|---|---|---|
| OMEventNullId | -1 | The null event ID |
| OMEventTimeoutId | -2 | The timeout event ID |
| OMEventCancelledEventId | -3 | The canceled event ID |
| OMEventAnyEventId | -4 | The ID for all events delegated to a specific OMReactive instance |
| OMEventStartBehaviorId | -5 | The ID reserved for the OMReactive startBehavior event |
| OMEventOXFEndEventId | -6 | Used for COM support in terminating the framework when it is used by multiple COM servers |