can any one tell me what these numbers( marked Red color) means ???

[mechael4]

hi all 
im new here and trying to understand the codes  
i want to know what these numbers( marked Red color)  means   ???



double haLowHigh_1 = iCustom(Symbol(),0,"Heiken Ashi",Red,White,Red,White,0,0);       0=?
   double haOpen_1    = iCustom(Symbol(),0,"Heiken Ashi",Red,White,Red,White,2,0);    0=?
   double haClose_1   = iCustom(Symbol(),0,"Heiken Ashi",Red,White,Red,White,3,0);    0=?

double haLowHigh_1 = iCustom(Symbol(),0,"Heiken Ashi",Red,White,Red,White,0,1);       1=?
   double haOpen_1    = iCustom(Symbol(),0,"Heiken Ashi",Red,White,Red,White,2,1);    1=?
   double haClose_1   = iCustom(Symbol(),0,"Heiken Ashi",Red,White,Red,White,3,1);    1=? 

double haLowHigh_1 = iCustom(Symbol(),0,"Heiken Ashi",Red,White,Red,White,0,2);       2=?
   double haOpen_1    = iCustom(Symbol(),0,"Heiken Ashi",Red,White,Red,White,2,2);    2=?
   double haClose_1   = iCustom(Symbol(),0,"Heiken Ashi",Red,White,Red,White,3,2);    2=?

[Seng Joo Thio]

mechael4:

Bar number - 0 means current bar.