NI-DAQmx .NET Framework 4.5 API Reference

Table of Contents
Table of Contents

CounterSingleChannelReader.EndReadMultiSamplePulseFrequency Method

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  • Updated2023-02-21
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CounterSingleChannelReader.EndReadMultiSamplePulseFrequency Method
Handles the end of an asynchronous read initiated with BeginReadMultiSamplePulseFrequency(Int32, AsyncCallback, Object) and retrieves the read samples.

Namespace:  NationalInstruments.DAQmx
Assembly:  NationalInstruments.DAQmx (in NationalInstruments.DAQmx.dll) Version: 20.7.45.49302

Syntax

public CIDataFrequency[] EndReadMultiSamplePulseFrequency(
	IAsyncResult asyncResult
)
Public Function EndReadMultiSamplePulseFrequency ( 
	asyncResult As IAsyncResult
) As CIDataFrequency()

Parameters

asyncResult
Type: SystemIAsyncResult
An IAsyncResult that represents an asynchronous call started by calling BeginReadMultiSamplePulseFrequency(Int32, AsyncCallback, Object).

Return Value

Type: CIDataFrequency
A 1D array of pulse samples in terms of frequency from the task. Each element in the array corresponds to a sample from the channel.

Exceptions

ExceptionCondition
ArgumentExceptionasyncResult is or is not an instance of IAsyncResult returned from a call to BeginReadMultiSamplePulseFrequency(Int32, AsyncCallback, Object).
DaqExceptionThe NI-DAQmx driver returned an error during the asynchronous operation.
OutOfMemoryExceptionThere is not enough memory to carry out this operation.

Remarks

If you call EndReadMultiSamplePulseFrequency(IAsyncResult) before the asynchronous read represented by the provided IAsyncResult is complete, EndReadMultiSamplePulseFrequency(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 Note
Refer to Asynchronous Reads and Writes for additional information.

See Also

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