BCGControlBar Pro for MFC
virtual BOOL CBCGPChartVisualObject::OnFormatDataPointTooltipDescription ( CString &  strTooltipDescr,
CBCGPChartSeries pSeries,
int  nDataPointIndex,
CBCGPChartAxis pAxisX,
CBCGPChartAxis pAxisY,
const CString &  strLabelX,
const CString &  strLabelY 

Called by framework to obtain a chart tooltip description.

strTooltipDescrA string contains a custom tooltip description.
pSeriesA pointer to a series.
nDataPointIndexZero-based index of the data point.
pAxisXA pointer to X axis.
pAxisYA pointer to Y axis.
strLabelXA default X axis name.
strLabelYA default Y axis name.
TRUE if developer specifies the custom description value, FALSE - otherwise.