NI-VISA error string

[ilyak]

Hello:

Is there support in NI-VISA library (4.6 and up) to get the string describing an error message returned from a function? NI-DAQmx has this kind of facility, for example.

Thank you,

-Ilya.

[Dennis_Knutson]

LabVIEW has the ability, not DAQmx. Just use the Simple Error Handler or General Error Handler.

[ilyak]

Hi Dennis:

DAQmx actually does have this ability - DAQmxGetErrorString and DAQmxGetExtendedErrorInfo.

Yes, LabVIEW has the support for this. Unfortunately I can't use LabVIEW.

-Ilya.

[ilyak · Accepted solution]

I found it:

ViStatus viStatusDesc(ViObject vi, ViStatus status, ViChar desc[])

The viStatusDesc() operation is used to retrieve a user-readable string that describes the status code presented. If the string cannot be interpreted, the operation returns the warning code VI_WARN_UNKNOWN_STATUS. However, the output string desc is valid regardless of the status return value.

-Ilya.