Using CounterReader and AsyncCallback is there a way to determine current amount of collected data?

[fjm1]

I am collecting a quadrupole encoder using CounterReader and AsyncCallback.  At any time I would like to know how many values are currently stored/collected before receiving the AsyncCallback and calling EndReadMultiSampleDouble.

[John_P1 · Accepted solution]

Hi fjm,

If I correctly understand what you are asking, you should try the DaqStream.AvailableSamplesPerChannel property:

If you are performing a buffered Counter input task then this property can be used to query the amount of samples available in the input buffer that have not yet been read into application memory.

Best Regards,

John

[fjm1]

John,

Thanks for the info.  It looks like it will do the trick.

Frank