on MQL4 it was very easy to get the value of Bollinger Bands
double Upper = iBands(NULL,0,20,2,0,PRICE_CLOSE,MODE_UPPER,1);
double Middle =iMA(NULL,0,20,0,MODE_SMA,PRICE_CLOSE,1);
double Lower = iBands(NULL,0,20,2,0,PRICE_CLOSE,MODE_LOWER,1);
hot is the same on MQL5?
just found out, that i get with iBands only the middle band
1. Please use SRC button when you post code.
2. Did you tried to use the search function on the site ?
3. You can find a example on that article.