Get number of overflows and underflows in a histogram

Dear all,

Is there any way to include overflows and underflows to the total value of the Integral of an histogram?
I want to get the total number of events (Integral + OverFlows + UnderFlows).

I could not find any option for this.

Thanks you very much,

if your histogram has Nbins, do

double integral = h.Integral(0,Nbins+1)