DigitalSingleChannelReader.ReadWaveform Method (Int32)

public DigitalWaveform ReadWaveform(
	int numberOfSamples
)

Public Function ReadWaveform ( 
	numberOfSamples As Integer
) As DigitalWaveform

Parameters

numberOfSamples

Type: SystemInt32
The number of samples to read. If you set numberOfSamples to -1 for a continuous acquisition, the read retrieves all samples available in the buffer at the time of the read. If you set numberOfSamples to -1 for a finite acquisition, the read behavior is set by the ReadAllAvailableSamples property of the DaqStream you are reading from.

Return Value

The data returned from digital waveform reads is affected by the WaveformAttributeMode property of the DaqStream you are reading from.

NI-DAQmx read and write methods time out after the amount of time specified by the Timeout property on the task you are reading from or writing to.

Refer to NI-DAQmx Readers and Writers for more information about memory limitations in NI-DAQmx read methods.

Reference