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virtual |
Returns a data point's label text.
The method is called to retrieve text of data label to be displayed for the specified data point.
You can override this method in a derived class if you implement virtual series and want to customize data point labels.
nDataPointIndex | Specifies a data point index. |
content | Specifies data label content. |
strDPLabel | Contains data label text when the function returns. |
Reimplemented in CBCGPChartTernarySeries.