[MT4/MQL4] Order Handle Guild / 訂單處理說明

Create / 建立

OrderSend

The main function used to open market or place a pending order.

int  OrderSend(    string   symbol,              // symbol    int      cmd,                 // operation    double   volume,              // volume    double   price,               // price    int      slippage,            // slippage    double   stoploss,            // stop loss    double   takeprofit,          // take profit    string   comment=NULL,        // comment    int      magic=0,             // magic number    datetime expiration=0,        // pending order expiration    color    arrow_color=clrNONE  // color    );

Ref: https://docs.mql4.com/trading/ordersend


Show how many Orders / 全部的訂單有幾筆

OrdersTotal

Returns the number of market and pending orders.

int  OrdersTotal();

Ref: https://docs.mql4.com/trading/orderstotal


Select Order (in Transaction by Position or by Order ID; All of the following actions go through this action) / 查詢訂單(以下所有行為都要經過此動作)

OrderSelect

The function selects an order for further processing.

bool  OrderSelect(    int     index,            // index or order ticket    int     select,           // flag    int     pool=MODE_TRADES  // mode    );

Ref: https://docs.mql4.com/trading/orderselect

The OrderSelect() function copies order data into program environment and all further calls of
OrderClosePrice(), 
OrderCloseTime(), 
OrderComment(), 
OrderCommission(), 
OrderExpiration(), 
OrderLots(), 
OrderMagicNumber(), 
OrderOpenPrice(), 
OrderOpenTime(), 
OrderPrint(), 
OrderProfit(), 
OrderStopLoss(), 
OrderSwap(), 
OrderSymbol(), 
OrderTakeProfit(), 
OrderTicket(), 
OrderType()

Modify an Order / 修改

OrderModify

Modification of characteristics of the previously opened or pending orders.

bool  OrderModify(    int        ticket,      // ticket    double     price,       // price    double     stoploss,    // stop loss    double     takeprofit,  // take profit    datetime   expiration,  // expiration    color      arrow_color  // color    );

Ref: https://docs.mql4.com/trading/ordermodify


Delete Order / 刪除(Order Pending/BuyLimit/BuyStop/SellLimit/SellStop)

OrderDelete

Deletes previously opened pending order.

bool  OrderDelete(    int        ticket,      // ticket    color      arrow_color  // color    );

Ref: https://docs.mql4.com/trading/orderdelete


Close Order / 關閉(Order Execution/Buy/Sell)

OrderClose

Closes opened order.

bool  OrderClose(    int        ticket,      // ticket    double     lots,        // volume    double     price,       // close price    int        slippage,    // slippage    color      arrow_color  // color    );

Ref: https://docs.mql4.com/trading/orderclose