BCGControlBar Pro for MFC
void CBCGPChartLegendVisualObject::ShowChartNameInLegend ( BOOL  bShow = TRUE,
BOOL  bRedraw = TRUE 

Shows or hides chart names in a legend

Call this method to show or hide chart names that may be displayed in each "standard" legend entry (row). It's useful when you have a couple of charts connected to a single legend. By default this option is turned off.

bShowspecifies whether to show, or hide chart names
bRedrawspecifies whether a legend should be redrawn