Trigger selected device.
unsigned int ibtrg (int ud)
ibtrg
ud | Device descriptor |
Function Return | The value of Ibsta |
ibtrg sends the Group Execute Trigger (GET) message to the device described by ud.
EBUS | No devices are connected to the GPIB. |
ECIC | The access board is not CIC. See Device-Level Calls and Bus Management. |
EDVR | The NI-488.2 driver is either configured incorrectly or is not properly installed. |
EHDL | ud is invalid or 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. |