Not sure.
Add a breakpoint to the execution where the data is pulled and analize what data is actually pulled (if any).
Like i said, what is returned depneds on the drivers too…
Maybe a breakpoint before in order to f11 into the actual function that does the job is abetter idea.
But you need to be sure that function is accessible by the debugging by setting the rifht debug options, if it VS just skips over it…