Allows you to determine the occurrence of a new bar event in a multicurrency Expert Advisor.
In a multicurrency Expert Advisor, the event of a new bar formation can occur at different times for different instruments. But since the EA always works on the chart of one instrument, it becomes necessary to correctly determine in the OnTick() event handler whether a new bar has already formed for the required period on another instrument.
This library implements such functionality. To determine the onset of a new bar on the desired period, information about the time of the first tick of the bar for each instrument of interest is stored at each tick. On the tick when a new bar starts, the start time of the new bar changes. Then, until a new bar, this time always remains constant. In this library, all the rough work is done to create the necessary variables to store times for different instruments and periods. The user only needs to apply the IsNewBar() and UpdateNewBar() functions in the right places.
To use it, you need to include the NewBarEvent.mqh library and then:
Necessarilycall theUpdateNewBar()functionat the beginning of OnTick()
Use the functionIsNewBar(symbol, timeframe)to check the occurrence of an event in OnTick()
An example of usage is given below and in the NewBarEventExample.mq5 file.
voidOnTick() {
//--- 1. IMPORTANT! Call UpdateNewBar() function at begin of OnTick()
UpdateNewBar();
//--- 2.1 Check eventsif(IsNewBar(Symbol(), Period())) { Print("New Bar at " + EnumToString(Period()) + " for " + Symbol()); }
if(IsNewBar("EURGBP", PERIOD_M15)) { Print("New Bar at PERIOD_M15 for EURGBP"); }
if(IsNewBar("USDCAD", PERIOD_M15)) { Print("New Bar at PERIOD_M15 for USDCAD"); }
if(IsNewBar("USDCHF", PERIOD_M15)) { Print("New Bar at PERIOD_M15 for USDCHF"); }
if(IsNewBar("EURGBP", PERIOD_H1)) { Print("New Bar at PERIOD_H1 for EURGBP"); }
if(IsNewBar("USDCAD", PERIOD_H1)) { Print("New Bar at PERIOD_H1 for USDCAD"); }
if(IsNewBar("USDCHF", PERIOD_H1)) { Print("New Bar at PERIOD_H1 for USDCHF"); }
//--- Perform some actions...Sleep(1500);
//--- 2.2 Check events again if neededif(IsNewBar(Symbol(), Period())) { Print("New Bar at " + EnumToString(Period()) + " for " + Symbol() + " second time at the same tick"); }
if(IsNewBar("EURGBP", PERIOD_M15)) { Print("New Bar at PERIOD_M15 for EURGBP second time at the same tick"); }
if(IsNewBar("USDCAD", PERIOD_M15)) { Print("New Bar at PERIOD_M15 for USDCAD second time at the same tick"); }
if(IsNewBar("USDCHF", PERIOD_M15)) { Print("New Bar at PERIOD_M15 for USDCHF second time at the same tick"); }
if(IsNewBar("EURGBP", PERIOD_H1)) { Print("New Bar at PERIOD_H1 for EURGBP second time at the same tick"); }
if(IsNewBar("USDCAD", PERIOD_H1)) { Print("New Bar at PERIOD_H1 for USDCAD second time at the same tick"); }
if(IsNewBar("USDCHF", PERIOD_H1)) { Print("New Bar at PERIOD_H1 for USDCHF second time at the same tick"); }
}
When running on GBPAUD M30, you can see something like this output
2022.04.0122:30:00 New Bar at PERIOD_M30for GBPAUD
2022.04.0122:30:00 New Bar at PERIOD_M15for EURGBP
2022.04.0122:30:00 New Bar at PERIOD_M15for USDCAD
2022.04.0122:30:00 New Bar at PERIOD_M15for USDCHF
2022.04.0122:30:02 New Bar at PERIOD_M30for GBPAUD second time at the same tick
2022.04.0122:30:02 New Bar at PERIOD_M15for EURGBP second time at the same tick
2022.04.0122:30:02 New Bar at PERIOD_M15for USDCAD second time at the same tick
2022.04.0122:30:02 New Bar at PERIOD_M15for USDCHF second time at the same tick
2022.04.0122:45:01 New Bar at PERIOD_M15for EURGBP
2022.04.0122:45:01 New Bar at PERIOD_M15for USDCAD
2022.04.0122:45:01 New Bar at PERIOD_M15for USDCHF
2022.04.0122:45:02 New Bar at PERIOD_M15for EURGBP second time at the same tick
2022.04.0122:45:02 New Bar at PERIOD_M15for USDCAD second time at the same tick
2022.04.0122:45:02 New Bar at PERIOD_M15for USDCHF second time at the same tick
New Bar Alerter - indicator MetaTrader 5 It's a simple indicator which forms an alert when new bar comes. Input parameters provide the ability to generate text,…
