Volume (VOL)
This is the volume for the shares, futures, ETFs and so on that are traded within a specified time period.
VOL()
VOL(IDataSeries inSeries)
VOL()[int barsAgo]
VOL(IDataSeries inSeries)[int barsAgo]
double
When using this method with an index (e.g. VOL()[int barsAgo] ), the value of the indicator will be issued for the referenced bar.
inSeries Input data series for the indicator

Volume (VOL)
//Output of the current volume
Print("The current volume is " + VOL()[0]);