Advanced >> Digital Output >> Number of Booleans Per Channel

NI-DAQmx C Properties

Advanced >> Digital Output >> Number of Booleans Per Channel

Data Type: uInt32
Description: Indicates the number of bytes expected per channel in a sample for line-based writes. If a channel has fewer lines than this number, NI-DAQmx ignores the extra bytes.
Restrictions: Not Settable

You can get this property using:
  DAQmxGetWriteDigitalLinesBytesPerChan