Transfer from MQL4 TO MQL5

[Netanel Tanami]

Hi

I want to transfert my EA from MQL4 to MQL5 

i have code at MQL4 that not work at MQL5

double tickvalue=MarketInfo(NULL,MODE_TICKVALUE);

How can i wirte this at MQL5 ? 

[Marco vd Heijden]

SymbolInfoDouble();