CounterSingleChannelReader.EndMemoryOptimizedReadMultiSamplePulseTicks Method
- Updated2023-02-21
- 2 minute(s) read
CounterSingleChannelReaderEndMemoryOptimizedReadMultiSamplePulseTicks Method
Handles the end of an asynchronous read initiated with BeginMemoryOptimizedReadMultiSamplePulseTicks(Int32, AsyncCallback, Object, CIDataTicks) and retrieves the read samples.
Namespace: NationalInstruments.DAQmx
Assembly: NationalInstruments.DAQmx (in NationalInstruments.DAQmx.dll) Version: 20.7.40.49302
Syntax
public CIDataTicks[] EndMemoryOptimizedReadMultiSamplePulseTicks( IAsyncResult asyncResult, out int actualNumberOfSamplesRead )
Public Function EndMemoryOptimizedReadMultiSamplePulseTicks ( asyncResult As IAsyncResult, <OutAttribute> ByRef actualNumberOfSamplesRead As Integer ) As CIDataTicks()
Parameters
- asyncResult
- Type: SystemIAsyncResult
An IAsyncResult that represents an asynchronous call started by calling BeginMemoryOptimizedReadMultiSamplePulseTicks(Int32, AsyncCallback, Object, CIDataTicks). - actualNumberOfSamplesRead
- Type: SystemInt32
The actual number of samples read. This is useful when the reading operation yields fewer or more samples than the actual length of data.
Return Value
Type: CIDataTicksA 1D array of CIDataTicks samples that contains the read data. Each element in the array corresponds to a sample from the channel.
Exceptions
| Exception | Condition |
|---|---|
| ArgumentException |
|
| 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 this method before the asynchronous read is complete, it waits for the read to complete before returning.
NI-DAQmx scales the returned 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. |