[MT4/MQL4] Order Type / 訂單屬性

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IDValueDescription
OP_BUY0Buy operation
OP_SELL1Sell operation
OP_BUYLIMIT2Buy limit pending order
OP_SELLLIMIT3Sell limit pending order
OP_BUYSTOP4Buy stop pending order
OP_SELLSTOP5Sell stop pending order

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[MT4/MQL4] Error Code / 程式錯誤代碼

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Trade Server Return Codes Code ID Description 0 ERR_NO_ERROR No error returned 1 ERR_NO_RESULT No error returned, but the result is unknown 2 ERR_COMMON_ERROR Common error 3 ERR_INVALID_TRADE_PARAMETERS Invalid trade parameters 4 ERR_SERVER_BUSY Trade server is busy 5 ERR_OLD_VERSION Old version of the client terminal 6 ERR_NO_CONNECTION No connection with trade server 7 ERR_NOT_ENOUGH_RIGHTS Not enough rights 8 ERR_TOO_FREQUENT_REQUESTS Too frequent requests 9 ERR_MALFUNCTIONAL_TRADE Malfunctional trade operation 64 ERR_ACCOUNT_DISABLED Account disabled 65 ERR_INVALID_ACCOUNT Invalid account 128 ERR_TRADE_TIMEOUT Trade timeout 129 ERR_INVALID_PRICE Invalid price 130 ERR_INVALID_STOPS Invalid stops 131 ERR_INVALID_TRADE_VOLUME Invalid trade volume 132 ERR_MARKET_CLOSED Market is closed 133 ERR_TRADE_DISABLED Trade is disabled 134 ERR_NOT_ENOUGH_MONEY Not enough money 135 ERR_PRICE_CHANGED Price changed 136 ERR_OFF_QUOTES Off quotes 137 ERR_BROKER_BUSY Broker
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Edit MQL4 on VSCode

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圖片
MQL4 Syntax Highlight https://marketplace.visualstudio.com/items?itemName=nervtech.mq4 MQL4 Syntax Highlighting This extension can be used to highlight the MQL 4 & 5 syntax in visual studio code. It is based on the MQL4 tmLanguage file available from  currencysecrets   github page . Please check the  project description page  from my my website for more details, or the  project github page . Features The MQL4 syntax highlight extension will colorize your .mq4, .mq5 and .mqh when working on the MetaTrader projects, as show on the following screenshots.
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[MT4/MQL4] Order Handle Guild / 訂單處理說明

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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 (i n Transaction b y Position or by Order ID; All
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