OrderCalcMargin

[paul selvan]

hello,

The instruction 

OrderCalcMargin()

works perfectly when written in  script

But when used in an indicator we got Error n° 4014 

ERR_FUNCTION_NOT_ALLOWED

Is this instruction works on script but not in  indicator

regards

[Fernando Carreiro]

Please review documentation ... Documentation on MQL5: MQL5 programs / Program Running → Functions prohibited in Indicators and Expert Advisors

 The following functions are prohibited in indicators:

• OrderCalcMargin();
• OrderCalcProfit();
• OrderCheck();
• OrderSend();
• SendFTP();
• Sleep();
• ExpertRemove();
• MessageBox()

[paul selvan]

how to share it also in indicator

[Fernando Carreiro]

paul selvan #: how to share it also in indicator

The functions are not allowed/supported in custom indicators. Was the documentation unclear?

If you insist, then you will have to implement your own functions for the calculations.

[Fernando Carreiro]

To implement your own functions, look into the following symbol property ...

SYMBOL_TRADE_CALC_MODE

Contract price calculation mode

ENUM_SYMBOL_CALC_MODE

The ENUM_SYMBOL_CALC_MODE enumeration is used for obtaining information about how the margin requirements for a symbol are calculated.

ENUM_SYMBOL_CALC_MODE

Identifier	Description	Formula
SYMBOL_CALC_MODE_FOREX	Forex mode - calculation of profit and margin for Forex	Margin:  Lots * Contract_Size / Leverage * Margin_Rate   Profit:   (close_price - open_price) * Contract_Size*Lots
SYMBOL_CALC_MODE_FOREX_NO_LEVERAGE	Forex No Leverage mode – calculation of profit and margin for Forex symbols without taking into account the leverage	Margin:  Lots * Contract_Size * Margin_Rate   Profit:   (close_price - open_price) * Contract_Size * Lots
SYMBOL_CALC_MODE_FUTURES	Futures mode - calculation of margin and profit for futures	Margin: Lots * InitialMargin * Margin_Rate   Profit:  (close_price - open_price) * TickPrice / TickSize*Lots
SYMBOL_CALC_MODE_CFD	CFD mode - calculation of margin and profit for CFD	Margin: Lots * ContractSize * MarketPrice * Margin_Rate   Profit:  (close_price - open_price) * Contract_Size * Lots
SYMBOL_CALC_MODE_CFDINDEX	CFD index mode - calculation of margin and profit for CFD by indexes	Margin: (Lots * ContractSize * MarketPrice) * TickPrice / TickSize * Margin_Rate   Profit:  (close_price - open_price) * Contract_Size * Lots
SYMBOL_CALC_MODE_CFDLEVERAGE	CFD Leverage mode - calculation of margin and profit for CFD at leverage trading	Margin: (Lots * ContractSize * MarketPrice) / Leverage * Margin_Rate   Profit:  (close_price-open_price) * Contract_Size * Lots
SYMBOL_CALC_MODE_EXCH_STOCKS	Exchange mode – calculation of margin and profit for trading securities on a stock exchange	Margin: Lots * ContractSize * LastPrice * Margin_Rate   Profit:  (close_price - open_price) * Contract_Size * Lots
SYMBOL_CALC_MODE_EXCH_FUTURES	Futures mode –  calculation of margin and profit for trading futures contracts on a stock exchange	Margin: Lots * InitialMargin * Margin_Rate or Lots * MaintenanceMargin * Margin_Rate   Profit:  (close_price - open_price) * Lots * TickPrice / TickSize
SYMBOL_CALC_MODE_EXCH_FUTURES_FORTS	FORTS Futures mode –  calculation of margin and profit for trading futures contracts on FORTS. The margin may be reduced by the amount of MarginDiscount deviation according to the following rules: 1. If the price of a long position (buy order) is less than the estimated price, MarginDiscount = Lots*((PriceSettle-PriceOrder)*TickPrice/TickSize) 2. If the price of a short position (sell order) exceeds the estimated price, MarginDiscount = Lots*((PriceOrder-PriceSettle)*TickPrice/TickSize) where: PriceSettle – estimated (clearing) price of the previous session; PriceOrder – average weighted position price or open price set in the order (request); TickPrice – tick price (cost of the price change by one point) TickSize – tick size (minimum price change step)	Margin: Lots * InitialMargin * Margin_Rate or Lots * MaintenanceMargin * Margin_Rate   Profit:  (close_price - open_price) * Lots * TickPrice / TickSize
SYMBOL_CALC_MODE_EXCH_BONDS	Exchange Bonds mode – calculation of margin and profit for trading bonds on a stock exchange	Margin: Lots * ContractSize * FaceValue * open_price * /100   Profit:  Lots * close_price * FaceValue * Contract_Size  + AccruedInterest * Lots * ContractSize
SYMBOL_CALC_MODE_EXCH_STOCKS_MOEX	Exchange MOEX Stocks mode – calculation of margin and profit for trading securities on MOEX	Margin: Lots * ContractSize * LastPrice * Margin_Rate   Profit:  (close_price - open_price) * Contract_Size * Lots
SYMBOL_CALC_MODE_EXCH_BONDS_MOEX	Exchange MOEX Bonds mode – calculation of margin and profit for trading bonds on MOEX	Margin: Lots * ContractSize * FaceValue * open_price * /100   Profit:  Lots * close_price * FaceValue * Contract_Size  + AccruedInterest * Lots * ContractSize
SYMBOL_CALC_MODE_SERV_COLLATERAL	Collateral mode - a symbol is used as a non-tradable asset on a trading account. The market value of an open position is calculated based on the volume, current market price, contract size and liquidity ratio. The value is included into Assets, which are added to Equity. Open positions of such symbols increase the Free Margin amount and are used as additional margin (collateral) for open positions of tradable instruments.	Margin: no Profit:  no   Market Value: Lots*ContractSize*MarketPrice*LiqudityRate

[paul selvan]

Let's say we want to calculate margin for cfd Dax40

Its calculation mode is MODE_CFDLEVERAGE and formula is :

Margin = (Lots * ContractSize * MarketPrice) / Leverage * Margin_Rate 

I suppose this is how to get parameters:

Lots=1;

ContractSize = SymbolInfoDouble(_Symbol,SYMBOL_TRADE_CONTRACT_SIZE);

MarketPrice =  SymbolInfoDouble(_Symbol,SYMBOL_ASK);

Margin_Rate is obtained by:

OrderCalcMargin(ORDER_TYPE_BUY, _Symbol, Lots, MarketPrice, Margin_Rate);

But for Leverage :

Leverage=AccountInfoInteger(ACCOUNT_LEVERAGE);

only gives account leverage (which is 30)

How to get it specificaly for cfd dax40 (which is 5)

[Stanislav Korotky]

Try the implementation from the algotrading book.

[paul selvan]

thank you for your suggestion