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9

Some question about Pointer

//+------------------------------------------------------------------+ //| | //+------------------------------------------------------------------+ class CAbaco { public : int m_int; CAbaco() {}

43

Help with pseudo multi inheritance

I've built a pseudo inheritance since mql doesn't allow this, here's what i did. //+------------------------------------------------------------------+ //| | //+------------------------------------------------------------------+ class

27

Observer Pattern

Hello everyone, i'm tryng to implement the Observer Pattern as described here (https://www.tutorialspoint.com/design_pattern/observer_pattern.htm) but i'm failing really hard. This is what i coded #include <Object.mqh> #include "Subject.mqh"

3

Array of Struct Sort using standard LIbrary

Hello, is there a way to sort a struct based on an element inside it? struct MyStruct { double _High[]; double _Low[]; string Symbolname; }; MyStruct Str[]; int Size= 10 ; ArrayResize (Str,Size); for ( int i= 0 ;i<Size;i++)

18

Loading More History Before Running EA

Hello guys, i'm building an ea that store PERIOD_M30 mqlRates structure for different symbol and do some statistical calcualtion, the problem currently is that i need approx 10 000 bar laoded to make my calculation, but the graph has more or less 2000 bars when you laod it the first time or you

3

Help me understand this EA

Hello, i'm pretty new to programming, i'm studiyng a Renko Expert Advisor, it converts a normal chart in a Renko chart. File is attached, i'm understanding pretty much everything, expect this: void UpdateChartWindow() { if (hwnd == 0 ) { hwnd = WindowHandle (sSymbolName, RenkoTimeFrame);

4

Calculation Incorrectness??

void OnStart () { double Lots=(( 1860.03 * 1.0 / 100 )/( 114.542 - 114.511 ))/( 0.87 / 0.001 ); double NormLotsRound= MathRound (Lots/ 0.01 )* 0.01 ; double NormLotsDouble= NormalizeDouble (Lots, 2 ); Print ( "Lots is, " ,Lots); Print ( "MathRound(Lots/0.01) is, " , MathRound (Lots/ 0.01

2

MODE_STOPLEVEL Problem

As title says, i'm having some problem placing BUYSTOP/SELLSTOP order sometimes, i get Error 130 (ERR_INVALID_STOPS), probably related to MarketInfo ( "EURUSD" , MODE_STOPLEVEL ) . My broker return 0 as value from MarketInfo ( "EURUSD" , MODE_STOPLEVEL ), i tried to correct the OrderSend price

16

Order Close error 138 BACKTEST

Hello, i'm getting this error only in BACKTESTING, here's a pic. As you can see i'm trying to close a Basket when a when an opposite signal is generated. Here's the OrderClose() code for Sell orders, the same for Buy orders for ( int i= 0 ; i< OrdersTotal (); i++) { if (

6

#property indicator_type / SetIndexStyle, DRAW_COLORCANDLE question!

I'm making an Indicator that recognize candle, trying to paint the candle and i see that there's a DRAW_COLORCANDLE option, but nothing on Documentation to help me understand how it works. Right now i'm using histogram like the file in here (https://www.mql5.com/en/code/10623) . But the main