can values from an indicator be referenced by ea

I am trying to get the following to generate values it works fine as an indicator see code below but when i try and use it in my ea i get no values for vm can anyone help convert this to produce the VM values same values i get from the indicator int ea

property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 DodgerBlue
//---- input parameters
extern int MomPeriod=14;
//---- buffers
double MomBuffer[],spd[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
string short_name;
//---- indicator line
SetIndexStyle(0,DRAW_LINE);
SetIndexBuffer(0,MomBuffer);
//---- name for DataWindow and indicator subwindow label
short_name="Mom("+MomPeriod+")";
IndicatorShortName(short_name);
SetIndexLabel(0,short_name);
//----
SetIndexDrawBegin(0,MomPeriod);
//----
return(0);
}
//+------------------------------------------------------------------+
//| Momentum |
//+------------------------------------------------------------------+
int start()
{


int i,vm,counted_bars=IndicatorCounted();
//----
if(Bars<=MomPeriod) return(0);
//---- initial zero
if(counted_bars<1)
for(i=1;i<=MomPeriod;i++) MomBuffer[Bars-i]=0.0;
//----
i=Bars-MomPeriod-1;
if(counted_bars>=MomPeriod) i=Bars-counted_bars-1;
while(i>=0)
{
spd[i]=(High[i]-Low[i]);



MomBuffer[i]=((Close[i]- Low[i)/(High[i+MomPeriod]-Low[i+MomPeriod]))*Volume[i];
vm=MomBuffer[i];
Print (vm);
i--;
}
return(vm);
}
//+------------------------------------------------------------------+

if you have the indicator in your mt4 directory, you can use iCustom()

not used it before how does it work ie lets say my indicator is

volmom how do i get the values from it

thank you

sorry for making last post