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Chapter 4 GPIB/GPIB-488.2 Library
© National Instruments Corporation 4-25 LabWindows/CVI Standard Libraries
See Also
ThreadIbsta, ThreadIbcnt, ThreadIbcntl.
ThreadIbsta
int
threadSpecificStatus = ThreadIbsta (
void
);
Note: This function is available only under Windows 95 and NT.
This function returns the value of the thread-specific
ibsta
variable for the current thread.
The global variables
ibsta
,
iberr
,
ibcnt
, and
ibcntl
are maintained on a process-specific
(rather than thread-specific) basis. If you are calling GPIB functions in more than one thread, the
values in these global variables may not always be reliable.
Status variables analogous to
ibsta
,
iberr
,
ibcnt
, and
ibcntl
are maintained for each
thread. This function returns the value of the thread-specific
ibsta
variable.
If you are not using multiple threads, the value returned by this function is identical to the value
of the
ibsta
global variable.
Parameters
none
Return Value
threadSpecificStatus
integer The status value for the current thread of execution. The
status value describes the state of the GPIB and the result
of the most recent GPIB function call in the thread. Any
value with the
ERR
bit set indicates an error. Call
ThreadIberr
for a specific error code.