GetDataFrame

Applies to:

DATAQSDK Active X Control

Description:

Returns the most recent specified number of data frames (scans - data is in counts - see Converting Counts to Volts) to a variant (see How to Extract information from a Variant). One scan is equivalent to one sample of each active WinDaq channel. All data returned by GetDataFrame is historical information (i.e., not real time).

Syntax:

DataqSdk1.GetDataFrame(Count) (whereCount is the number of scans you are requesting)

Example:

Dim A As Variant

Private Sub DataqSdk1_ NewData(ByVal Count As Integer)

A = DataqSdk1.GetDataFrame(DQChart1. Xmax)

DQChart1. Chart (A)

End Sub

Private Sub Start_Click()

DataqSdk1. ADChannelCount = 1

DataqSdk1. EventPoint = DQChart1. Xmax

DataqSdk1. Start

End Sub

Private Sub Stop_Click()

DataqSdk1. Stop

End Sub