MtApi5: expose MT5 economic calendar (Calendar* functions)#301
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MtApi5: expose MT5 economic calendar (Calendar* functions)#301biohazardxxx wants to merge 9 commits into
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Values verified against the official MQL5 mqlcalendar reference (member order 0-based for all 8 enums). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Native CalendarCountryById/EventById/ValueById set a nonzero LastError even for a simple not-found, which made the handlers emit an error response. Native contract is a plain bool, so map any false to a null Value (client bool=false). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Compiled on the upstream/dev base (0 errors, 0 warnings). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This was referenced Jul 3, 2026
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…ar* functions # Conflicts: # mq5/MtApi5.ex5
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Summary
Surfaces the MT5 terminal's built-in economic calendar through the MtApi5 connector. MQL5 exposes the calendar natively (
CalendarValueHistory,CalendarEventById,CalendarValueLast, …) but none of it was reachable from the .NET client. This adds all 10 nativeCalendar*functions end-to-end.What's included
C# client (
MtApi5) — 10 methods onMtApi5Client:CalendarCountries()CalendarCountryById(long, out MqlCalendarCountry)CalendarEventById(long, out MqlCalendarEvent)CalendarEventByCountry(string)CalendarEventByCurrency(string)CalendarValueById(long, out MqlCalendarValue)CalendarValueHistoryByEvent(long, DateTime, DateTime)CalendarValueHistory(DateTime, DateTime, string, string)CalendarValueLastByEvent(long, ref long)CalendarValueLast(ref long, string, string)MqlCalendarCountry,MqlCalendarEvent,MqlCalendarValueand 8ENUM_CALENDAR_*enums (values verified against the official MQL5 reference).MqlCalendarValuekeeps the raw wire fields (long, ×1e6,LONG_MIN= "no value") and adds conveniencedouble?accessors (ActualValue/ForecastValue/PrevValue/RevisedPrevValue,nullwhen empty) plusDateTime time/period.bool+outidiom;CalendarValueLast*round-trip the in/outchange_idviaref long.MQL5 EA (
mq5/MtApi5.mq5) — 10Execute_Calendar*handlers + executor registrations + 3 JSON serializers. 64-bit ids / datetimes / scaled values use the existingGET_ULONG/GET_LONGmacros andJSONNumber((long)).mq5/MtApi5.ex5recompiled (0 errors, 0 warnings).TestClient — a
CalendarHistorybutton for manual exercising.Testing
Verified against a live MT5 terminal:
CalendarCountries(23),CalendarEventByCurrency("USD")/CalendarEventByCountry("US")(248),CalendarEventById(correct event, 64-bit id intact),CalendarValueHistory(decodes correctly;LONG_MIN→null; enums decode to HIGH/PRICES/PERCENT etc.),CalendarValueById(sentinel handling),CalendarValueLastByEvent(change_idround-trips), andCalendarEventById(0)→falsewithout throwing.Branch is based on
devand contains calendar changes only.