NI-DAQmx .NET Framework 4.0 API Reference

CounterMultiChannelReader.BeginReadSingleSampleInt32 Method

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Updated2023-02-21
2 minute(s) read

Begins an asynchronous read of a single Int32 sample from one or more CIChannel objects in a task.

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

Syntax

public IAsyncResult BeginReadSingleSampleInt32(
	AsyncCallback callback,
	Object state
)

Public Function BeginReadSingleSampleInt32 ( 
	callback As AsyncCallback,
	state As Object
) As IAsyncResult

Parameters

callback: Type: SystemAsyncCallback
An optional asynchronous callback that is called when the read is complete. Specify if you do not want a callback when the read is complete.
state: Type: SystemObject
A user-provided object that distinguishes this asynchronous read request from other requests. Use this parameter to provide information to the callback. Specify if you do not need to pass any additional information to the callback.

Return Value

Type: IAsyncResult
An IAsyncResult that represents the asynchronous call.

Remarks

To get the read data or any exceptions that occurred during an asynchronous read initiated with BeginReadSingleSampleInt32(AsyncCallback, Object), call EndReadSingleSampleInt32(IAsyncResult) with the returned IAsyncResult.

NI-DAQmx scales the read data to the units of the measurement, including any custom scaling you apply to the channel. You specify these units with the create channel methods or the DAQ Assistant.

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

CounterMultiChannelReader.BeginReadSingleSampleInt32 Method

Syntax

Parameters

Return Value

Remarks

See Also

Reference

Other Resources

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