virtual CBCGPSize CBCGPChartVisualObject::OnCalcLegendKeySize ( CBCGPChartSeries *  pSeries, int  nDataPointIndex  )

virtual

Called to calculate legend key size.

Override this method in a derived class if you wish to customize appearance of legend keys.

You need to override CBCGPChartVisualObject::OnDrawChartLegendKey as well.

Parameters

pSeries	A pointer to a series whose legend key size should be calculated.
nDataPointIndex	Specifies data point index. It's greater or equal to zero if the legend key corresponds to a data point.

Returns

A legend key size.