NI-DAQmx .NET Framework 4.0 API Reference

DigitalSingleChannelReader.EndReadSingleSampleMultiLine Method

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Updated2023-02-21
2 minute(s) read

Handles the end of an asynchronous read initiated with BeginReadSingleSampleMultiLine(AsyncCallback, Object) and retrieves the read samples.

Namespace: NationalInstruments.DAQmx
Assembly: NationalInstruments.DAQmx (in NationalInstruments.DAQmx.dll) Version: 20.7.40.49302

Syntax

public bool[] EndReadSingleSampleMultiLine(
	IAsyncResult asyncResult
)

Public Function EndReadSingleSampleMultiLine ( 
	asyncResult As IAsyncResult
) As Boolean()

Parameters

asyncResult: Type: SystemIAsyncResult
An IAsyncResult that represents an asynchronous call started by calling BeginReadSingleSampleMultiLine(AsyncCallback, Object).

Return Value

Type: Boolean
A 1D array of Boolean samples from the task. Each element of the array corresponds to a digital line in the channel.

Exceptions

Exception	Condition
ArgumentException	If data is or is uninitialized; If the first dimension of data does not match the number of channels; or asyncResult is or is not an instance of IAsyncResult returned from a call to BeginReadSingleSampleMultiLine(AsyncCallback, Object).
DaqException	The NI-DAQmx driver returned an error during the asynchronous operation.
OutOfMemoryException	There is not enough memory to carry out this operation.

Remarks

If you call EndReadSingleSampleMultiLine(IAsyncResult) before the asynchronous read represented by the provided IAsyncResult is complete, EndReadSingleSampleMultiLine(IAsyncResult) waits for the read to complete before returning.

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.

Note
Refer to Asynchronous Reads and Writes for additional information.

NI-DAQmx .NET Framework 4.0 API Reference

Table of Contents

DigitalSingleChannelReader.EndReadSingleSampleMultiLine Method

Syntax

Parameters

Return Value

Exceptions

Remarks

See Also

Reference

Other Resources

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