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Home/ Questions/Q 6233591
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Editorial Team
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Editorial Team
Asked: May 24, 20262026-05-24T10:19:39+00:00 2026-05-24T10:19:39+00:00

I am using National Instruments WaveformGraph control with PlotYAppend function to display stream of

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I am using National Instruments WaveformGraph control with PlotYAppend function to display stream of data coming from external DAQ board.

By default WaveformGraph show only 1000 points from appended array, how is possible to change that?

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  1. Editorial Team
    Editorial Team
    2026-05-24T10:19:40+00:00Added an answer on May 24, 2026 at 10:19 am

    One of the properties of the waveform graph is history capacity. The default is 1000.

        Me.WaveformGraph1.Plots(0).HistoryCapacity = 5000
    
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