BCGSuite for MFC
double CBCGPChartAxis::GetMaxZoomInFactor ( ) const
inline

Returns maximal zoom factor.

Call this function to obtain maximal zoom factor. It defines maximum allowed zoom and cannot exceed relation between maximal scroll range and major unit. In other words, if zoom factor is 10000, scroll range is 1000, then major unit can't be smaller then 0.1.

You can set a zoom factor using SetMaxZoomInFactor().