Namespace ViiSync.AccountApi

Classes

AccountRec: Account record (MT5 AccountRec).

BalancePoint: A balance-history sample (MT5 BalancePoint).

Bar: An OHLC bar (MT5 Bar). ViiSync stores M1 bars; other timeframes are aggregated client-side exactly as the MT5 terminal aggregates them.

BookBar: One market-depth level (MT5 BookBar).

Comission: One commission tier (MT5 Comission). ViiSync charges a flat per-lot commission on every deal.

ComissionInfo: A symbol's commission definition (MT5 ComissionInfo).

ConnectEventArgs: Connection progress payload (MT5 ConnectEventArgs).

ConnectException: Connecting or logging in failed (MT5 ConnectException).

DealInternal: A deal — one immutable execution-ledger row (MT5 DealInternal).

EquityPoint: An equity-history sample (MT5 EquityPoint).

Expiration: Pending-order expiration (MT5 Expiration).

InvalidSymbolException: The symbol is not in the account's catalog (MT5 InvalidSymbolException).

InvestorModeException: A trade call on a read-only (investor) session (MT5 InvestorModeException).

MailMessage: A mailbox message (MT5 MailMessage) — a ViiSync bulletin.

MarketWatch: Daily market statistics for a symbol (MT5 MarketWatch), built from today's M1 bars and the live quote.

NotEmittedByViiSyncAttribute: Marks an enum member (or member) that exists for source compatibility with MT5 code but that ViiSync never produces. The coverage matrix (docs/client-library/mt5-coverage.md) scores such members as PARTIAL.

Order: The MT5 "order" view (MT5 Order): an open position, a working pending order, or a closed trade (history). Ticket is the position id for positions/closed trades and the order id for pending orders.

OrderClientSafe

Connection-safe trading (MT5 OrderClientSafe): the same OrderSend / OrderClose / OrderModify / OrderDelete as ViiSyncAccountApi, but a call that loses its connection (NO_CONNECTION) or its answer (REQUEST_TIMEOUT) does not simply fail: the wrapper waits — up to TradeTimeoutSafe — for the API to be connected again, then settles the outcome from the server's state:

OrderClose / OrderDelete / OrderModify are idempotent on their target: if the position is gone / the order is no longer working / the levels are already in place, the call succeeded; otherwise it is sent once more.
OrderSend is never re-sent (a second open would double the exposure): the new position or pending order is looked up by symbol, type, volume, magic and comment among the tickets that did not exist before the call; if the server has none, the original exception is thrown.

Refusals (NO_MONEY, INVALID_VOLUME, …) are not connection failures and are thrown at once, as by the API.

OrderHistoryEventArgs: Result of an order-history download (MT5 OrderHistoryEventArgs).

OrderInternal: An order record (MT5 OrderInternal): pending or market, working or historical.

OrderProgress: Progress of one trade request (MT5 OrderProgress).

OrderUpdate: A change to the account's orders/positions (MT5 OrderUpdate), raised by OnOrderUpdate.

Pagination: Pages a list of orders for display (MT5 Pagination).

Quote: A price quote (MT5 Quote). Time is UTC (ViiSync's server clock is UTC).

ServerException: A server-side failure carrying an MT5 return code (MT5 ServerException).

ServerRec: Server identity (MT5 ServerRec).

Session: One trading/quoting window, minutes from midnight (UTC for ViiSync).

SymBaseInfo: Account-wide symbol settings (MT5 SymBaseInfo).

SymGroup: Per-symbol trade settings (MT5 SymGroup). In ViiSync these are fields of the symbol itself; this view presents them in MT5's shape. Volumes: *Volume in MT5 units (1e-8 lot), *Lots in lots.

SymbolBook: A symbol's order book keyed by price (MT5 SymbolBook).

SymbolInfo: Instrument specification (MT5 SymbolInfo) plus ViiSync extras.

SymbolSessions: Weekly quote and trade sessions of a symbol (index 0 = Sunday … 6 = Saturday). A symbol without time limits has one 00:00–24:00 window per day.

SymbolUpdate: A symbol catalog change (MT5 SymbolUpdate).

Symbols: The account's symbol catalog (MT5 Symbols), kept current from the engine's symbol pushes.

TickBar: One historical tick (MT5 TickBar).

TradeRequest: A trade request as sent (MT5 TradeRequest).

TradeResult: The server's typed answer to a trade request (MT5 TradeResult).

ViiSyncAccountApi

The ViiSync trading-account API, shaped like mtapi.io's MT5API so MT5 integrations port with minimal change: the same constructor (login, password, host, port), Connect, OrderSend/OrderClose/OrderModify with MT5's parameter lists and enums, Symbols.Infos, GetQuote, OnQuote, OnOrderUpdate, the Account* figures and the history downloads. Every blocking call has an …Async twin.

Differences a porting developer should know: times are UTC (ViiSync's server clock is UTC, MT5 servers are usually UTC+2/+3); tickets are 64-bit ids issued by ViiSync; failures throw ServerException with MT5 return codes (Msg). State (positions, pending orders, account figures, symbols) is kept current from the engine's pushes, so reading GetOpenedOrders(OrderSort, bool) or AccountEquity costs no round trip.

VolumeUnits: Volume units: like MT5, Volume fields count 1/100 000 000 of a lot; Lots fields are lots.

Structs

MarketDepthEventArgs: Depth event payload (MT5 MarketDepthEventArgs).

OrderProgressEventArgs: Compact progress notification (MT5 OrderProgressEventArgs).

QuoteHistoryEventArgs: Bars delivered by OnQuoteHistory (MT5 QuoteHistoryEventArgs).

TickHistoryEventArgs: Ticks delivered by OnTickHistory (MT5 TickHistoryEventArgs).

Enums

AccMethod: Account margin accounting mode.

BookBarType: Market-depth level side.

CalculationMode: Symbol profit/margin calculation mode.

CommissionPeriod: Commission charging period.

CommissionType: Commission charging model.

ConnectProgress: Connection progress (OnConnectProgress).

DealType: Deal (ledger row) type.

Direction: DEAL_ENTRY: what a deal did to its position.

EquityTimeframe: Sampling step of CalculateEquityHistory.

ExecutionType: Symbol execution mode.

ExpirationFlags: Allowed expiration modes of a symbol.

ExpirationType: Pending-order time in force.

FillPolicy: Order filling policy (ORDER_TYPE_FILLING). Validated against the symbol's allowed filling (UNSUPPORTED_FILLING_MODE); every ViiSync client fill is all-or-nothing, so FOK and IOC are honoured by construction.

FillingFlags: Allowed filling policies of a symbol.

GTCMode: Good-till-cancelled handling of pending orders.

InstantCommissionType: Which deals an instant commission is charged on.

MarginMode: Symbol margin mode.

Msg: Return codes (MT5 numbering). Trade results use the 10xxx trade-server codes; see ServerException.Code.

OrderSort: Sort key for order lists.

OrderState: Order lifecycle state (ViiSync: Placed → PartiallyFilled → Filled, or Cancelled / Rejected / Expired).

OrderType: MT5 order / position type. Market positions are Buy/Sell; pending orders the Limit/Stop/StopLimit kinds.

PlacedType: Who/what placed the order (ORDER_REASON).

ProgressType: Progress of a trade request (OnOrderProgress).

SwapType: Swap calculation mode.

TradeMode: Symbol trade permission.

TradeType: MT5 trade action. Accepted for source compatibility; the action is inferred from the order type.

UpdateAction: Symbol catalog change kind.

UpdateType: What an OnOrderUpdate event describes.

V3DaysSwap: Weekday on which triple swap is charged.

vCommissionUnitMode: Commission unit mode.

vCommissionUnitType: Commission unit currency.

Delegates

OnConnectProgress: Raised at each connection stage.

OnMail: Raised when a mailbox message arrives (and by MailBodyRequest(long)).

OnOrderBook: Raised with each order-book update of a subscribed symbol.

OnOrderHistory: Raised with the result of a fire-and-forget history request.

OnOrderProgress: Raised at each stage of a trade request.

OnOrderUpdate: Raised on the API's receive thread when a position, order or deal changes; keep handlers short.

OnQuote: Raised on the API's receive thread; keep handlers short (MT5 delegates, same shapes).

OnQuoteHistory: Raised with the bars of a fire-and-forget bar request.

OnSymbolUpdate: Raised once per changed symbol after the catalog is re-pushed.

OnSymbolsUpdate: Raised once after a catalog change, after the per-symbol events.

OnTickHistory: Raised once per page of a tick-history stream.

Table of Contents

Namespace ViiSync.AccountApi

Classes

Structs

Enums

Delegates