MQL4 - How to extract data of an string Array/JSON - page 2

[Marco vd Heijden]

If it works it's probably ok.

It looks ok so i expect it to work.

[ezequielgodoy]

Guys, In that script I have function to calculate the Lots, but this is not work for all pairs.

//+------------------------------------------------------------------+
//| Calculate Lot Size Per Trade                                     |
//+------------------------------------------------------------------+
double CalcLotSize(string symbol, double RiskPercent, double RiskInPips)
{
   double LotSize = 0;

   //We get the value of a tick
   double nTickValue = MarketInfo(symbol, MODE_TICKVALUE);
   double _digits    = MarketInfo(symbol, MODE_DIGITS);

   //If the digits are 3 or 5 we normalize multiplying by 10
   if(_digits==3 || _digits==5){
      nTickValue=nTickValue*10;
   }
   
   // Lots = Equity * Risk% / (Stop Loss in Pips * Pip Value) / 100
   LotSize = NormalizeDouble(AccountEquity()*(RiskPercent/100)/RiskInPips*nTickValue,_digits);
   LotSize = MathRound(LotSize/MarketInfo(symbol,MODE_LOTSTEP))*MarketInfo(symbol,MODE_LOTSTEP);
   
   if(LotSize<0.01) LotSize=0.01;

   return(LotSize);
}

double CalcLotSize(string symbol, double RiskPercent, double RiskInPips)

symbol = "EURUSD"
RiskPercent = 2
RiskInPips = 160

Someone can help me with this one?

[Alain Verleyen]

ezequielgodoy:

Guys, In that script I have function to calculate the Lots, but this is not work for all pairs.

symbol = "EURUSD"
RiskPercent = 2
RiskInPips = 160

Someone can help me with this one?

Off topic...and discussed 3 million times on the forum.

[ezequielgodoy]

Alain, can you put the link here please?

[Alain Verleyen]

ezequielgodoy:

Alain, can you put the link here please?

You can't even search yourself ? I don't have a link, but I know there are a lot of topics about this. Do your home work please.

[David]

try to use percent based equity to calculate the lots

[wh000]

Marco vd Heijden #:

You can also just use csv.

I want to send a post request. But i have some question in JSON. the params is 

    params = {

        msgtype: 'markdown',

        markdown: {

            title: 'wh',

            text: text

        },

    };

res=WebRequest("POST", url, headers, 3000, data, result, str);

Can you help me? And how to encode the JSON params to char array?Thank you.