Is the status visible in the VISA probe available for use as a function in LabVIEW?

[WNM]

The VISA data probe shows two boolean items I'd like to have available for use within my code, "Is session valid?" and "Is Instr?" yet I have not found any LabVIEW function which will provide this information. Does it exist within LabVIEW outside the VISA probe? If so, where might I find it?

[JeanPierre]

Is session valid is given by the function NaN/Path/Refnum? in the Comparison palette.
Is Instr is given reading the VISA property General Settings>Resource Class.

[WNM]

Thanks!

[mikeporter]

Actually, a lot of the probes are VIs. Check out:

C:\Program Files\National Instruments\LabVIEW 7.1\vi.lib\_probes\default\VISA

In fact check out every thing in the _probes directory. There's some neat stuff in there...

Mike...