IBSTOP
Board-Level/Device-Level
Purpose
Abort asynchronous I/O operation.
Format
C
unsigned long ibstop (int ud)
Visual Basic
CALL ibstop (ud%)
or
status% = ilstop (ud%)
Interactive Control (Usage Notes)
ibstop
Input
| ud | Board or device descriptor |
Output
| Function Return | The value of Ibsta |
Description
The ibstop function aborts any asynchronous read, write, or command operation that is in progress and resynchronizes the application with the driver. If asynchronous I/O is in progress, the error bit is set in the status word, Ibsta, and EABO is returned, indicating that the I/O was successfully stopped.
Possible Errors
| EABO | Asynchronous I/O was successfully stopped. |
| 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. |