void CBCGPChartTrendFormula::GetTrendRange | ( | double & | dblMinVal, |
double & | dblMaxVal | ||
) | const |
Returns current trend line range.
This method returns current trend line range. If dblMinVal is equal to dblMaxVal, the range is considered empty and a trend line is displayed according to minimum and maximum displayed values on X axis.
dblMinVal | Contains minimum range value when the method returns. |
dblMaxVal | Contains maximum range value when the method returns. |