Completion Codes
- Updated2026-08-05
- 2 minute(s) read
This topic lists and describes the completion codes.
Completion Codes | Values | Meaning |
|---|---|---|
VI_SUCCESS | 0 | Operation completed successfully. |
VI_SUCCESS_EVENT_EN | 3FFF0002h | Specified event is already enabled for at least one of the specified mechanisms. |
VI_SUCCESS_EVENT_DIS | 3FFF0003h | Specified event is already disabled for at least one of the specified mechanisms. |
VI_SUCCESS_QUEUE_EMPTY | 3FFF0004h | Operation completed successfully, but queue was already empty. |
VI_SUCCESS_TERM_CHAR | 3FFF0005h | The specified termination character was read. |
VI_SUCCESS_MAX_CNT | 3FFF0006h | The number of bytes read is equal to the input count. |
VI_WARN_QUEUE_OVERFLOW | 3FFF000Ch | The event returned is valid. One or more events that occurred have not been raised because there was no room available on the queue at the time of their occurrence. This could happen because VI_ATTR_MAX_QUEUE_LENGTH is not set to a large enough value for your application and/or events are coming in faster than you are servicing them. |
VI_WARN_CONFIG_NLOADED | 3FFF0077h | The specified configuration either does not exist or could not be loaded; using VISA-specified defaults. |
VI_SUCCESS_DEV_NPRESENT | 3FFF007Dh | Session opened successfully, but the device at the specified address is not responding. |
VI_SUCCESS_TRIG_MAPPED | 3FFF007Eh | The path from trigSrc to trigDest is already mapped. |
VI_SUCCESS_QUEUE_NEMPTY | 3FFF0080h | Wait terminated successfully on receipt of an event notification. There is still at least one more event occurrence of the requested type(s) available for this session. |
VI_WARN_NULL_OBJECT | 3FFF0082h | The specified object reference is uninitialized. |
VI_WARN_NSUP_ATTR_STATE | 3FFF0084h | Although the specified state of the attribute is valid, it is not supported by this resource implementation. |
VI_WARN_UNKNOWN_STATUS | 3FFF0085h | The status code passed to the operation could not be interpreted. |
VI_WARN_NSUP_BUF | 3FFF0088h | The specified buffer is not supported. |
VI_SUCCESS_NCHAIN | 3FFF0098h | Event handled successfully. Do not invoke any other handlers on this session for this event. |
VI_SUCCESS_NESTED_SHARED | 3FFF0099h | Operation completed successfully, and this session has nested shared locks. |
VI_SUCCESS_NESTED_EXCLUSIVE | 3FFF009Ah | Operation completed successfully, and this session has nested exclusive locks. |
VI_SUCCESS_SYNC | 3FFF009Bh | Asynchronous operation request was actually performed synchronously. |
VI_WARN_EXT_FUNC_NIMPL | 3FFF00A9h | The operation succeeded, but a lower level driver did not implement the extended functionality. |