That works just fine, thanks john

There doesn't seem to be a function like:

m_Chart.Series( series_index ).GetPointColor().SetColor( RGB(0,255,0));

m_Chart.Series( series_index ).GetXValues().SetValue( point_index, double_value);

I think I've asked this question before, but cannot find the answer on how to re-color a point in a point series and how to move the point to a new x-y value location.

Thanks

When I load a few thousand data points thens are OK, but if a push 10K or 30K at a time I get: "Access violation at address 504D8251 in module 'TeeChart7.ocx'. Read of address 058A5860." Is there a mechanism to trap the error with a try ... catch or get a message from the ocx as to what went wrong? ...

I could not find OnGetPointerStlye, but maybe is it OnGetSeriesPointerStyle which is number 33. If so, what funstion signature do I use? such as: ON_EVENT(CCelulatorView, IDC_TCHART1, 21, /* OnMouseUp */ OnMouseUpChart, VTS_I4 VTS_I4 VTS_I4 VTS_I4) then... void CCelulatorView::OnMouseUpChart(long Bu...

Do you have an example of using OnGetPointerStyle?

It is not practical to send an example.

On a related subject is it possible to make individual points visible and not-visible by knowing their index in the point-series?

Thanks

Could I get a copy?

ValueList Count(xxx) greater than the array length(0). D:\Steema\Root\TeeChartVCL\Sources7\TeEngine.pas, line 5316) I do not have the source code, so how am I to debug this. I think that it is related to this line: m_pChart->Series(PointPlotRedIdx). AddArray( RedPointCount, m_YValuesRed, m_XValuesRe...

IDs ITChartEvents 1 OnAfterDraw 29 OnBeforeDrawSeries 30 OnBeforeDrawAxes 3 OnClick 4 OnClickAxis 5 OnClickBackground 6 OnClickLegend 7 OnClickSeries 8 OnDblClick 9 OnDragDrop 10 OnDragOver 11 OnEndDrag 12 OnEnter 13 OnExit 14 OnGetAxisLabel 16 OnGetLegendRect 18 OnGetNextAxisLabel 19 OnMouseDown 20...

When I write my BEGIN_EVENTSINK_MAP stuff, where can I get a list of the other indexes, such as 1 is for OnAfterDraw ... what is the index for OnBeforeDraw ??? BEGIN_EVENTSINK_MAP(CCelulatorView, CFormView) //{{AFX_EVENTSINK_MAP(CTigerMFCDlg) ON_EVENT(CCelulatorView, IDC_TCHART1, 1 /* OnAfterDraw */...

Yes, things should be ok ...

But If the OleSafeArray is the problem, maybe not. I've not really found any really good info on OleSafeArray, but where it is created and updated, ie scope and thread, is very important. I usually keep it within the process and I do not pass it around.

// Code Snipit for increasing COleSafeArray XValues; COleSafeArray YValues; long MaxPlotPoints;[/code] ... // Initial Creating, somewhere in init_foo() XValues.Create(VT_R8, 1, &MaxPlotPoints ); YValues.Create(VT_R8, 1, &MaxPlotPoints ); ... // Resize function BOOL CMojoClass::CheckSafeArraySize(voi...

Had the same problem, mainly with large ( greater than 20,000 data points). Two parts, first is you need to use AddArray plus make the allocation larger than you need for the ole-safe-array. Second, so that the chart-ocx can handle the large array, fill the array with random data when you initialize...