Real-Time Volume

[patrick256]

I am processing the real-time volume number that comes with the function Hooks1BarsChanged( ). Is this volume number an individual trade volume like Time-Sales data, or is this the total summation for the bar?

I guess I am asking if we need to do our own running summation of the volume number from Hooks1BarsChanged().

Thanks
Patrick

[AChan]

Which Desktop API method did you call to receive this event?
In what data structure is this volume field contained in?

[patrick256]

I am calling RequestHistory as seen below.

lRTHandle = Hooks1->RequestHistory[wSymbol] [wInterval] [btType] [lNumBars] [lStartTime] [lEndTime];


I process the callback, "Hooks1BarsChanged" the volume number is in the barItem data structure.

Hooks1BarsChanged(TObject *Sender, long lHandle){

lNumBars = Hooks1->GetNumBars[lHandle];

barItem = (BarData)(Hooks1->GetBar[lHandle][0]);

o2=(double)barItem.dOpen;
h2=(double)barItem.dHigh;
l2=(double)barItem.dLow;
c2=(double)barItem.dClose;
v2=(int)barItem.dVolume;

}

[AChan]

Assuming that you are requesting 1 minute intraday bars update in real-time, the volume field you get in the baritem object is the volume for that particular minute.