MQL4参考 交易函数

Trade Functions

This is the group of functions intended for managing trading activities.

Trading functions can be used in Expert Advisors and scripts. OrderSend(), OrderClose(), OrderCloseBy(), OrderModify(), OrderDelete() trading functions changing the state of a trading account can be called only if trading by Expert Advisors is allowed (the "Allow live trading" checkbox is enabled in the Expert Advisor or script properties).

Trading can be allowed or prohibited depending on various factors described in the Trade Permission section.

Function	Action
OrderClose	Closes opened order
OrderCloseBy	Closes an opened order by another opposite opened order
OrderClosePrice	Returns close price of the currently selected order
OrderCloseTime	Returns close time of the currently selected order
OrderComment	Returns comment of the currently selected order
OrderCommission	Returns calculated commission of the currently selected order
OrderDelete	Deletes previously opened pending order
OrderExpiration	Returns expiration date of the selected pending order
OrderLots	Returns amount of lots of the selected order
OrderMagicNumber	Returns an identifying (magic) number of the currently selected order
OrderModify	Modification of characteristics of the previously opened or pending orders
OrderOpenPrice	Returns open price of the currently selected order
OrderOpenTime	Returns open time of the currently selected order
OrderPrint	Prints information about the selected order in the log
OrderProfit	Returns profit of the currently selected order
OrderSelect	The function selects an order for further processing
OrderSend	The main function used to open an order or place a pending order
OrdersHistoryTotal	Returns the number of closed orders in the account history loaded into the terminal
OrderStopLoss	Returns stop loss value of the currently selected order
OrdersTotal	Returns the number of market and pending orders
OrderSwap	Returns swap value of the currently selected order
OrderSymbol	Returns symbol name of the currently selected order
OrderTakeProfit	Returns take profit value of the currently selected order
OrderTicket	Returns ticket number of the currently selected order
OrderType	Returns order operation type of the currently selected order

What's new in MQL5

Added the functions for working with orders, deals and positions to conduct trading operations. An order is a request to buy or sell. The order execution leads to a deal resulting in opening, modifying or closing a position.

If you develop trading robots, pay attention to the new OrderSendAsync function intended for asynchronous trading operations. This function is executed in less than 1 millisecond (it does not wait till the trade server responds to a sent request) and returns control immediately. Low network costs, high Depth of Market refresh rates and asynchronous order sending accelerate trading operations dozens of times. For intraday systems, the speed of trading operations can be a key factor.

WindowYOnDroppedOrderClose