Determine the current state of the GPIB Service Request (SRQ) line.
void TestSRQ (int boardID, short *result)
TestSRQ
boardID | The interface number |
result | State of the SRQ line: non-zero if the line is asserted, zero if the line is not asserted |
TestSRQ returns the current state of the GPIB SRQ line in result. If SRQ is asserted, result contains a non-zero value. Otherwise, result contains a zero. Use TestSRQ to get the current state of the GPIB SRQ line. Use WaitSRQ to wait until SRQ is asserted.
ECIC | The interface is not the Controller-In-Charge; see SendIFC. |
EDVR | The NI-488.2 driver is either configured incorrectly or is not properly installed. |
EHDL | boardID is out of range. |
ELCK | The requested operation could not be performed because of an existing lock by another process. |
ENEB | The interface is not installed or is not properly configured. |
EOIP | Asynchronous I/O is in progress. |