Problem with ClearData on RealTime chart

[User (Legacy)]

Hello,

I'm having a problem trying to clear data from a RealTime style chart.

If the chart has some data points and I do a m_pChartFX->ClearData(), then 

on the next data point entry ( which would now be the first data point), I 

get a COM error 0x80004005 (Unspecified Error).

I got the same error to occur in your sample code by changing the method 

OnAcquireData in the CCfxRealTime class from:

if (IsDlgButtonChecked(IDC_ACQUIREDATA))

    SetTimer(1,100,NULL);  // A 10th of a second

else

    KillTimer(1);

to

if (IsDlgButtonChecked(IDC_ACQUIREDATA))

    SetTimer(1,100,NULL);  // A 10th of a second

else

{

    KillTimer(1);

    m_pChartFX1->ClearData(CD_VALUES);

    m_pChartFX2->ClearData(CD_VALUES);

}

Now if the Data Acquistion checkbox is selected a second time to start the 

data again, the COM error occurs.

Is there any special things I need to do to clear a realtime chart?

BTW: I'm using the ChartFX Active X control version 5.0.14.4

Thanks,

Chris