Margin calculation problem

 
When i code this for USDTRY on an account that leverage 1000
MarketInfo(Symbol(),MODE_MARGINREQUIRED)

the result on the screen is 100 .

But when i open 1 Lot USDTRY on this account, i see margin value 20000 on the MT4.

why there is different between code margin value and metatrader4 margin value?

Symbol Properties - Environment State - Standard Constants, Enumerations and Structures - MQL4 Reference
Symbol Properties - Environment State - Standard Constants, Enumerations and Structures - MQL4 Reference
  • docs.mql4.com
A zero value of MODE_STOPLEVEL means either absence of any restrictions on the minimal distance for Stop Loss/Take Profit or the fact that a trade server utilizes some external mechanisms for dynamic level control, which cannot be translated in the client terminal. In the second case, GetLastError() can return error 130, because MODE_STOPLEVEL...
 
Risk depends on your initial stop loss, lot size, and the value of the pair.
  1. In code (MT4):
    1. You place the stop where it needs to be - where the reason for the trade is no longer valid. E.g. trading a support bounce the stop goes below the support.
    2. Account Balance * percent/100 = RISK = OrderLots * (|OrderOpenPrice - OrderStopLoss| * DeltaPerLot + CommissionPerLot) (Note OOP-OSL includes the SPREAD, and DeltaPerLot is usually around $10/pip but it takes account of the exchange rates of the pair vs. your account currency.)
    3. Do NOT use TickValue by itself - DeltaPerLot and verify that MODE_TICKVALUE is returning a value in your deposit currency, as promised by the documentation, or whether it is returning a value in the instrument's base currency.
                MODE_TICKVALUE is not reliable on non-fx instruments with many brokers.
    4. You must normalize lots properly and check against min and max.
    5. You must also check FreeMargin to avoid stop out
    Most pairs are worth about $10 per PIP. A $5 risk with a (very small) 5 PIP SL is $5/$10/5=0.1 Lots maximum.

  2. Use a GUI EA like mine (for MT4): Indicators: 'Money Manager Graphic Tool' indicator by 'takycard' Forum - Page 6
 
whroeder1:
Risk depends on your initial stop loss, lot size, and the value of the pair.
  1. In code (MT4):
    1. You place the stop where it needs to be - where the reason for the trade is no longer valid. E.g. trading a support bounce the stop goes below the support.
    2. Account Balance * percent/100 = RISK = OrderLots * (|OrderOpenPrice - OrderStopLoss| * DeltaPerLot + CommissionPerLot) (Note OOP-OSL includes the SPREAD, and DeltaPerLot is usually around $10/pip but it takes account of the exchange rates of the pair vs. your account currency.)
    3. Do NOT use TickValue by itself - DeltaPerLot and verify that MODE_TICKVALUE is returning a value in your deposit currency, as promised by the documentation, or whether it is returning a value in the instrument's base currency.
                MODE_TICKVALUE is not reliable on non-fx instruments with many brokers.
    4. You must normalize lots properly and check against min and max.
    5. You must also check FreeMargin to avoid stop out
    Most pairs are worth about $10 per PIP. A $5 risk with a (very small) 5 PIP SL is $5/$10/5=0.1 Lots maximum.

  2. Use a GUI EA like mine (for MT4): Indicators: 'Money Manager Graphic Tool' indicator by 'takycard' Forum - Page 6

i attached image about this problem.could you check it please.

Files:
margin.jpg  349 kb
Reason: