KT Forex Session Indicator
MT4 | MT5

// MQL4:

if(iCustom(Symbol(),0,"KT Forex Sessions indicator",0,0)!=0) // Sydney session is active
if(iCustom(Symbol(),0,"KT Forex Sessions indicator",1,0)!=0) // Tokyo session is active
if(iCustom(Symbol(),0,"KT Forex Sessions indicator",2,0)!=0) // Frankfurt session is active
if(iCustom(Symbol(),0,"KT Forex Sessions indicator",3,0)!=0) // London session is active
if(iCustom(Symbol(),0,"KT Forex Sessions indicator",4,0)!=0) // New York session is active


// MQL5:

// declare handle
int indicator_handle = iCustom(Symbol(),0,"KT Forex Sessions indicator");

// declare arrays
double Sydney[],Tokyo[],Frankfurt[],London[],New_York[];

// Copy buffers
CopyBuffer(indicator_handle,0,1,1,Sydney);
CopyBuffer(indicator_handle,1,1,1,Tokyo);
CopyBuffer(indicator_handle,2,1,1,Frankfurt);
CopyBuffer(indicator_handle,3,1,1,London);
CopyBuffer(indicator_handle,4,1,1,New_York);

if(Sydney[0]!=0)       // Sydney session is active
if(Tokyo[0]!=0)       // Tokyo session is active
if(Frankfurt[0]!=0)  // Frankfurt session is active
if(London[0]!=0)    // London session is active
if(New_York[0]!=0) // New_York session is active