Continuous Acquisition - National Instruments IMAQTM User Manual

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If you want to acquire multiple frames, set the image count to the number
of frames you want to acquire. This operation is called a sequence. Use a
sequence for applications that process multiple images. The following code
illustrates an asynchronous sequence, where
number of images that you want to process:
Private Sub Start_Click()
CWIMAQ1.AcquisitionType = cwimaqAcquisitionOneShot
CWIMAQ1.Images.RemoveAll
CWIMAQ1.Images.Add numberOfImages
CWIMAQ1.Start
End Sub

Continuous Acquisition

Use a continuous acquisition to start an acquisition and continuously
acquire frames into the image buffers, and then explicitly stop the
acquisition. Use the
CWIMAQ.Start
the method to stop the acquisition. If you use a single buffer
CWIMAQ.Stop
for the acquisition, this operation is called a grab. The following code
illustrates a grab:
Private Sub Start_Click()
CWIMAQ1.AcquisitionType=_
cwimaqAcquisitionContinuous
CWIMAQ1.Start
End Sub
Private Sub Stop_Click()
CWIMAQ1.Stop
End Sub
A ring operation uses multiple buffers for the acquisition. Use a ring for
high-speed applications that require processing on every image. The
following code illustrates a ring, where
images that you want to process:
Private Sub Start_Click()
CWIMAQ1.AcquisitionType =_
cwimaqAcquisitionContinuous
CWIMAQ1.Images.RemoveAll
CWIMAQ1.Images.Add numberOfImages
CWIMAQ1.Start
End Sub
Chapter 2
method to start the acquisition. Use
numberOfImages
2-5 IMAQ Vision for Visual Basic User Manual
Getting Measurement-Ready Images
is the
numberOfImages
is the number of