ReWriting/Converting MQL4 Code to MQL5 for Advanced Trading Success

admin

Converting or rewriting MQL4 code to MQL5 involves transitioning from the older MetaQuotes Language to its newer iteration, often necessitated by enhanced functionalities and optimizations offered by MQL5. Common issues encountered during this migration include differences in syntax, such as changes in function parameters or method calls, which require careful adaptation. Additionally, MQL4's reliance on the order-based execution model contrasts with MQL5's position-based approach, leading to adjustments in trade management logic. Moreover, library limitations may arise due to disparities in available functions and features between the two versions, necessitating either rewriting certain sections of code or finding alternative solutions. Despite these challenges, the migration process presents an opportunity to leverage MQL5's advanced capabilities for more efficient and robust algorithmic trading strategies.

Here we will help you convert your EA or indicator from mt4 to mt5. Whether you have the source code or not. Attach your file here or contact the admin via Telegram User MTCollectorsAdmin

marksEvie

admin Hello admin, Kindly help me rewrite this mql4 to mql5:
double stopLoss = OrderType() == OP_BUY ? Bid - trailingStopDistance * Point() : Ask + trailingStopDistance * Point();

admin

Custom Scripts and Libraries: Some developers have created custom scripts or libraries specifically designed to assist with MQL4 to MQL5 conversion tasks. These tools may offer additional functionality or customization options beyond what is provided by built-in conversion utilities.

While these tools can streamline the conversion process, it's important to note that manual review and adjustment of the converted code are typically required to ensure compatibility and functionality in the MQL5 environment.

Need to get an MT5 EA/Indicator With same Functionality as your MT4 EA/Indicator? Post your request here for FREE!

We'll analyze your MQL4 code and convert it to MQL5, giving you a modern, feature-rich equivalent. You only pay when you're happy with the results. Get a free quote today and unlock the potential of MQL5!

Alternatively contact the admin via Telegram User MTCollectorsAdmin

admin

Below is a list of some of the compile errors people encounter while converting mql4 to mql5.
By understanding the reasons and how MQL5 handles functions differently, you can effectively translate your MQL4 code to MQL5. If you have challenges converting your code, we are here for you.

'_str64' - too many parameters
truncation of constant value
'AccountInfoDouble' - wrong parameters count To correct this, you need to know how mql5 accesses account properties. built-in: double AccountInfoDouble(ENUM_ACCOUNT_INFO_DOUBLE)
'AccountNumber' - undeclared identifier
')' - expression expected Caused by change of syntax. Not necessarily unbalanced
cannot be used for static allocated array
'HideTestIndicators' - undeclared identifier
'true' - some operator expected
possible loss of data due to type conversion from 'long' to 'int'
possible use of uninitialized variable
' - variable already defined
see declaration of variable '"void OnTick()"::myequity'
'TimeDay' - undeclared identifier
'iTime' - some operator expected
'(' - unbalanced left parenthesis
'!=' - operand expected
')' -unexpected token
expression has no effect
possible loss of data due to type conversion from 'datetime' to 'double'
'AccountBalance'- undeclared identifier
'AccountMargin' - undeclared identifier
'AccountLeverage' - undeclared identifier
implicit conversion from 'number' to 'string'
possible loss of data due to type conversion from 'double' to 'int'
possible loss of data due to type conversion from 'datetime' to 'int'
'iMAOnArray' - undeclared identifier
',' - unexpected token
'' -some operator expected
'0' - semicolon expected
'iStdDevOnArray' - undeclared identifier
'High' - undeclared identifier
'High' - variable expected
built-in: int ArrayResize(void&,int,int)
'Low' - undeclared identifier
'Low' - variable expected
'Open' - undeclared identifier
'Open' - variable expected
'Close' - undeclared identifier
'Close' - variable expected
'Time' - undeclared identifier
'Time' - variable expected
'High' - parameter passed as reference, variable expected
void _sets::High(double&[])
'Low' - parameter passed as reference, variable expected
void _sets::Low(double&[])
'Open' - parameter passed as reference, variable expected
void _sets::Open(double&[])
'Close' - parameter passed as reference, variable expected
void _sets::Close(double&[])
'Time' - parameter passed as reference, variable expected
void _sets::__Time(datetime&[])
expression not boolean
pointer to this function type is not supported yet
'Bid' - function call missing, open parenthesis expected
'Bid' - type mismatch
'Ask' - function call missing, open parenthesis expected
'Ask' - type mismatch
'SymbolInfoDouble' - no one of the overloads can be applied to the function call
could be one of 2 function(s)
built-in: double SymbolInfoDouble(const string,ENUM_SYMBOL_INFO_DOUBLE)
built-in: bool SymbolInfoDouble(const string,ENUM_SYMBOL_INFO_DOUBLE,double&)
'iStdDev' - wrong parameters count
built-in: int iStdDev(const string,ENUM_TIMEFRAMES,int,int,ENUM_MA_METHOD,int)
'iMA' - wrong parameters count
built-in: int iMA(const string,ENUM_TIMEFRAMES,int,int,ENUM_MA_METHOD,int)
'OrderSymbol' - undeclared identifier
'OrderOpenPrice' - undeclared identifier
'OrderStopLoss' - undeclared identifier
'OrderTakeProfit' - undeclared identifier
check operator precedence for possible error; use parentheses to clarify precedence
'RefreshRates' - undeclared identifier
'OrderModify' - undeclared identifier
'OrderTicket' - undeclared identifier

Most of these errors are specific to MQL5 because of how mql5 handles the functions to access various properties related to orders, accounts, indicators, objects etc.

Here we will help you convert your EA or indicator from mt4 to mt5. Whether you have the source code or not. Attach your file here or contact the admin via Telegram User MTCollectorsAdmin

harrisonmorissette

Here's a breakdown of the MQL4 to MQL5 error reasons, considering how MQL5 accesses functions:

Function Availability:
HideTestIndicators, TimeDay, AccountBalance, AccountMargin, AccountLeverage, iStdDevOnArray, iMAOnArray, High, Low, Open, Close, Time (all references), OrderSymbol, OrderOpenPrice, OrderStopLoss, OrderTakeProfit, RefreshRates, OrderModify, OrderTicket: These functions are not available in MQL5. You'll need alternative approaches for their functionalities.
Parameter Mismatch:
_str64, AccountInfoDouble, SymbolInfoDouble, iStdDev, iMA: These functions have different parameter requirements in MQL5. Check the MQL5 documentation for proper usage.
**Missing Declarations:**
AccountNumber: This variable needs to be declared in your MQL5 code.
Operator Errors:
')' - expression expected, iTime - some operator expected, '!=' - operand expected, '(' - unbalanced left parenthesis, ')' - unexpected token: These errors indicate missing elements or incorrect usage of operators in your code. Ensure proper expression construction and operator placement.
**
Data Type Issues:
**
truncation of constant value, possible loss of data due to type conversion: MQL5 might handle data types differently. Check if constant values are within variable range and be mindful of potential data loss during conversions.
Syntactic Differences:
cannot be used for static allocated array, implicit conversion from 'number' to 'string', global_131_do_ko - some operator expected, 0' - semicolon expected: MQL5 might have stricter rules or different syntax for these operations. Review MQL5 documentation for the appropriate way to achieve what your MQL4 code was doing.
Logic Errors:
expression has no effect: The expression might not be accomplishing anything useful. Re-evaluate its purpose and logic.
expression not boolean: The expression used in a conditional statement might not be evaluating to true or false. Ensure it results in a valid boolean value.
Operator Precedence:
check operator precedence for possible error: The order of operations might be causing issues in MQL5. Use parentheses to explicitly define the order of evaluation.

braxtonschumm

MQL4 to MQL5 porting table ver. 0.2 coded by fai.

Ask SymbolInfoDouble(Symbol(),SYMBOL_ASK);
Bid SymbolInfoDouble(Symbol(),SYMBOL_BID);
　　
Bars Bars(Symbol(),PERIOD_CURRENT);
　　
Digits _Digits or Digits()
Point _Point or Point()
extern input

　　
Close[]
High[]
Low[]
Open[]
Time[]
Volume[] int OnCalculate(const int rates_total,
const int prev_calculated,
const datetime &Time[],
const double &Open[],
const double &High[],
const double &Low[],
const double &Close[],
const long &Volume[],
const long &Real_Volume[],
const int &Spread[])
{
ArraySetAsSeries(Open,true);
ArraySetAsSeries(High,true);
ArraySetAsSeries(Low,true);
ArraySetAsSeries(Close,true);
ArraySetAsSeries(Time,true);
ArraySetAsSeries(Volume,true);
ArraySetAsSeries(Spread,true);
　 in EA/script
use CopyClose,CopyHigh,CopyLow,CopyOpen,CopyTime,
CopyTickVolume
　　
AccountBalance() AccountInfoDouble(ACCOUNT_BALANCE);
AccountCredit() AccountInfoDouble(ACCOUNT_CREDIT);
AccountCompany() AccountInfoString(ACCOUNT_COMPANY);
AccountCurrency() AccountInfoString(ACCOUNT_CURRENCY);
AccountEquity() AccountInfoDouble(ACCOUNT_EQUITY);
AccountFreeMargin() AccountInfoDouble(ACCOUNT_FREEMARGIN);
AccountFreeMarginCheck() read AccountFreeMarginCheck
AccountFreeMarginMode() ???
AccountLeverage() AccountInfoInteger(ACCOUNT_LEVERAGE);
AccountMargin() AccountInfoDouble(ACCOUNT_MARGIN);
AccountName() AccountInfoString(ACCOUNT_NAME);
AccountNumber() AccountInfoInteger(ACCOUNT_LOGIN);
AccountProfit() AccountInfoDouble(ACCOUNT_PROFIT);
AccountServer() AccountInfoString(ACCOUNT_SERVER);
AccountStopoutLevel() AccountInfoDouble(ACCOUNT_MARGIN_SO_SO);
AccountStopoutMode() AccountInfoInteger(ACCOUNT_MARGIN_SO_MODE);
　　
ArrayBsearch() read ArrayBsearch
ArrayCopyRates() read CopyRates
ArrayCopySeries() read CopyClose/CopyHigh/CopyLow/CopyOpen/CopyTickVolume/CopyTime
ArrayDimension() ????
ArraySort() // MQL4 ArraySort(SortInt, 0, 0, MODE_ASCEND);
ArraySort(SortInt);

//MQL4 ArraySort(SortInt, 0, 0, MODE_DESCEND);
ArraySetAsSeries(SortInt,true);
ArraySort(SortInt);
　　
GetLastError() you need to call ResetLastError() before use.
IsConnected() (bool)TerminalInfoInteger(TERMINAL_CONNECTED)??
IsDemo() bool IsDemo(){
ENUM_ACCOUNT_TRADE_MODE tradeMode=(ENUM_ACCOUNT_TRADE_MODE)AccountInfoInteger(ACCOUNT_TRADE_MODE);
if(tradeMode == ACCOUNT_TRADE_MODE_DEMO) return(true);
// tradeMode is ACCOUNT_TRADE_MODE_CONTEST or ACCOUNT_TRADE_MODE_REAL
return(false);
}
IsDllsAllowed()
IsLibrariesAllowed() (bool)MQL5InfoInteger(MQL5_DLLS_ALLOWED)???
IsOptimization() (bool)MQL5InfoInteger(MQL5_OPTIMIZATION)???
IsTesting() (bool)MQL5InfoInteger(MQL5_TESTING)???
IsTradeAllowed()
(bool)MQL5InfoInteger(MQL5_TRADE_ALLOWED) &&
(bool)TerminalInfoInteger(TERMINAL_TRADE_ALLOWED)??
IsExpertEnabled() (bool)TerminalInfoInteger(TERMINAL_EXPERTS_ENABLED)??
IsTradeContextBusy() LOST????
IsVisualMode() (bool)MQL5InfoInteger(MQL5_VISUAL_MODE)???
UninitializeReason() UninitReason
TerminalCompany() TerminalInfoString(TERMINAL_COMPANY)
TerminalName() TerminalInfoString(TERMINAL_NAME)
TerminalPath() TerminalInfoString(TERMINAL_PATH)
TerminalInfoString(TERMINAL_DATA_PATH)
TerminalInfoString(TERMINAL_COMMONDATA_PATH)
　　
Alert() LOST????
MarketInfo() read SymbolInfoInteger/Double/String
　　
CharToStr() CharToString()
DoubleToStr() DoubleToString()
StrToDouble() StringToDouble()
StrToInteger() StringToInteger()
StrToTime() StringToTime()
TimeToStr() TimeToString()
　　
IndicatorBuffers() #property indicator_buffers 7
#property indicator_plots 7
IndicatorCounted() const int prev_calculated
IndicatorDigits() IndicatorSetInteger(INDICATOR_DIGITS,Digits);
IndicatorShortName() IndicatorSetString(INDICATOR_SHORTNAME,name);
SetIndexArrow() PlotIndexSetInteger(0,PLOT_ARROW,213);
SetIndexBuffer() SetIndexBuffer(0,MABuffer,INDICATOR_DATA); // or INDICATOR_CALCULATIONS
SetIndexDrawBegin() PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,KPeriod);
SetIndexEmptyValue() PlotIndexSetDouble(0,PLOT_EMPTY_VALUE,0.0);
SetIndexLabel() PlotIndexSetString(0,PLOT_LABEL,"Moving Average");
SetIndexShift() PlotIndexSetInteger(0,PLOT_SHIFT,26);
SetIndexStyle() PlotIndexSetInteger(0,PLOT_LINE_STYLE,STYLE_SOLID);
PlotIndexSetInteger(0,PLOT_LINE_WIDTH,2);
PlotIndexSetInteger(0,PLOT_LINE_COLOR,DeepPink);
SetLevelStyle() IndicatorSetInteger(INDICATOR_LEVELSTYLE,STYLE_DOT);
SetLevelValue() IndicatorSetInteger(INDICATOR_LEVELS,2);
IndicatorSetDouble(INDICATOR_LEVELVALUE,0,20);
IndicatorSetDouble(INDICATOR_LEVELVALUE,1,80);
　　
Day()
DayOfWeek()
DayOfYear()
Hour()
Minute()
Month()
Seconds()
Year() MqlDateTime tm;
TimeCurrent(tm);
int Day=tm.day;
int DayOfWeek=tm.day_of_week;
int DayOfYear=tm.day_of_year;
int Hour=tm.hour;
int Minute=tm.min;
int Seconds=tm.sec;
int Year=tm.year;
　　
TimeDay()
TimeDayOfWeek()
TimeDayOfYear()
TimeHour()
TimeMinute()
TimeMonth()
TimeSeconds()
TimeYear() datetime TargetTime = D'2003.12.31';
MqlDateTime tm;
TimeToStruct(TargetTime,tm);
int Day=tm.day;
int DayOfWeek=tm.day_of_week;
int DayOfYear=tm.day_of_year;
int Hour=tm.hour;
int Minute=tm.min;
int Seconds=tm.sec;
int Year=tm.year;
　　
FileOpenHistory() LOST????
FileSeek() read FileSeek
　　
ObjectXXXX use mt4objects.mqh (http://forum.mql4.com/26550/page16)
ObjectCreate() ObjectCreate(0,…
ObjectDelete() ObjectDelete(0,name);
ObjectDescription() ObjectGetString(0,name,OBJPROP_TEXT);
ObjectFind() ObjectFind(0,name);
ObjectGet() read ObjectGetIngeger/Double/String
ObjectGetFiboDescription() ObjectGetString(0,name,OBJPROP_LEVELTEXT,int level);
ObjectGetShiftByValue() ObjectGetTimeByValue(0,string name,double value,int line_id);
ObjectGetValueByShift() ObjectGetValueByTime(0,string name,datetime time, int line_id);
ObjectMove() ObjectMove(0, string name, int point, datetime time1, double price1)
ObjectName() ObjectName(0,int pos,int nwin=-1,int type=-1);
ObjectsDeleteAll() ObjectsDeleteAll(0,int window=EMPTY, int type=EMPTY)
ObjectSet() read ObjectSetIngeger/Double/String
ObjectSetFiboDescription() ObjectSetString(0,string name,OBJPROP_LEVELTEXT,int level,string newstring);
ObjectSetText() ObjectSetString(0,string name,OBJPROP_TEXT,string newstring);
ObjectsTotal() ObjectsTotal(0,int nwin=-1,int type=-1);
ObjectType() ObjectGetInteger(0,name,OBJPROP_TYPE);
　　
StringConcatenate() int StringConcatenate(string& string_var,void arg1,void arg2....);
StringGetChar() StringGetCharacter()
StringSetChar() StringSetCharacter()
　　
iBars() Bars()
iBarShift()
iClose()
iHigh()
iHighest()
iLow()
iLowest()
iOpen()
iTime()
iVolume() use mt4timeseries.mqh (http://forum.mql4.com/26550/page14)
iTime() datetime iTime(string symbol,ENUM_TIMEFRAMES timeframe,int index)
{
datetime Times[];
datetime tm=0;
ArraySetAsSeries(Times,true);
int copied=CopyTime(symbol,timeframe,0,Bars(symbol,timeframe),Times);
if(copied>0 && index<copied) tm=Times[index];
return(tm);
}// My Simple code..
　　
iMA // 1. Add iMA_handle in Grobal variable; //SAMPLE CODE is Sample_iMA.mq5
int iMA_handle;
// 2. Set iMA in OnInit()
iMA_handle=iMA(Symbol(),0,MAPeriod,0,MODE_EMA,PRICE_CLOSE);
// 3. CopyBuffer in OnCalculate();
int copied=CopyBuffer(iMA_handle,0,0,rates_total,MALineBuffer);
iMAOnArray // 1. add MovingAverages.mqh //SAMPLE CODE is Sample_iMAOnArray2.mq5
#include <MovingAverages.mqh>
// 2. add MAonArrayBuffer in Grobal variable;
double MAonArrayBuffer[];
// 3. Set ArraySetAsSeries in OnInit().
ArraySetAsSeries(MAonArrayBuffer,true);
// 4. Resize Arraysize of MAonArrayBuffer in OnCalculate().
ArrayResize(MAonArrayBuffer,Bars);
// 5. Call Simple/Exponential/LinearWeighted/SmoothedMAOnBuffer
int ret=ExponentialMAOnBuffer(Bars,0,0,MAPeriod,OriginalBuffer,MAonArrayBuffer);
　　
HideTestIndicators() LOST????
Period() PeriodSeconds(Period())/60
RefreshRates() LOST????
WindowBarsPerChart() ChartGetInteger(0,CHART_VISIBLE_BARS)
WindowExpertName() MQL5InfoString(MQL5_PROGRAM_NAME)
WindowFind() ????????
WindowFirstVisibleBar() ChartGetInteger(0,CHART_FIRST_VISIBLE_BAR)
WindowHandle() ChartGetInteger(0,CHART_WINDOW_HANDLE) //MQL4 WindowHandle(Symbol(),Period())
WindowIsVisible() ChartGetInteger(0,CHART_WINDOW_IS_VISIBLE)
WindowOnDropped() ChartWindowOnDropped()
WindowPriceMax() ChartGetDouble(0,CHART_PRICE_MIN,0);
WindowPriceMin() ChartGetDouble(0,CHART_PRICE_MAX,0);
WindowPriceOnDropped() ChartPriceOnDropped()
WindowRedraw() ChartRedraw()
WindowScreenShot() read ChartScreenShot
WindowTimeOnDropped() ChartTimeOnDropped()
WindowsTotal() ChartGetInteger(0,CHART_WINDOWS_TOTAL)
WindowXOnDropped() ChartXOnDropped()
WindowYOnDropped() ChartYOnDropped()

admin

#define OBJPROP_FIRSTLEVEL1 211 
#define OBJPROP_FIRSTLEVEL2 212 
#define OBJPROP_FIRSTLEVEL3 213 
#define OBJPROP_FIRSTLEVEL4 214 
#define OBJPROP_FIRSTLEVEL5 215 
#define OBJPROP_FIRSTLEVEL6 216 
#define OBJPROP_FIRSTLEVEL7 217 
#define OBJPROP_FIRSTLEVEL8 218 
#define OBJPROP_FIRSTLEVEL9 219 
#define OBJPROP_FIRSTLEVEL10 220 
#define OBJPROP_FIRSTLEVEL11 221 
#define OBJPROP_FIRSTLEVEL12 222 
#define OBJPROP_FIRSTLEVEL13 223 
#define OBJPROP_FIRSTLEVEL14 224 
#define OBJPROP_FIRSTLEVEL15 225 
#define OBJPROP_FIRSTLEVEL16 226 
#define OBJPROP_FIRSTLEVEL17 227 
#define OBJPROP_FIRSTLEVEL18 228 
#define OBJPROP_FIRSTLEVEL19 229 
#define OBJPROP_FIRSTLEVEL20 230 
#define OBJPROP_FIRSTLEVEL21 231 
#define OBJPROP_FIRSTLEVEL22 232 
#define OBJPROP_FIRSTLEVEL23 233 
#define OBJPROP_FIRSTLEVEL24 234 
#define OBJPROP_FIRSTLEVEL25 235 
#define OBJPROP_FIRSTLEVEL26 236 
#define OBJPROP_FIRSTLEVEL27 237 
#define OBJPROP_FIRSTLEVEL28 238 
#define OBJPROP_FIRSTLEVEL29 239 
#define OBJPROP_FIRSTLEVEL30 240 
#define OBJPROP_FIRSTLEVEL31 241 
//--- 
/*#define MODE_OPEN 0 
#define MODE_CLOSE 3 
#define MODE_VOLUME 4 
#define MODE_REAL_VOLUME 5 
#define MODE_TRADES 0 
#define MODE_HISTORY 1 
#define SELECT_BY_POS 0 
#define SELECT_BY_TICKET 1*/ 
//--- 
#define DOUBLE_VALUE 0 
#define FLOAT_VALUE 1 
#define LONG_VALUE INT_VALUE 
//--- 
#define CHART_BAR 0 
#define CHART_CANDLE 1 
//--- 
#define MODE_ASCEND 0 
#define MODE_DESCEND 1 
//--- 
#define MODE_LOW 1 
#define MODE_HIGH 2 
#define MODE_TIME 5 
#define MODE_BID 9 
#define MODE_ASK 10 
#define MODE_POINT 11 
#define MODE_DIGITS 12 
#define MODE_SPREAD 13 
#define MODE_STOPLEVEL 14 
#define MODE_LOTSIZE 15 
#define MODE_TICKVALUE 16 
#define MODE_TICKSIZE 17 
#define MODE_SWAPLONG 18 
#define MODE_SWAPSHORT 19 
#define MODE_STARTING 20 
#define MODE_EXPIRATION 21 
#define MODE_TRADEALLOWED 22 
#define MODE_MINLOT 23 
#define MODE_LOTSTEP 24 
#define MODE_MAXLOT 25 
#define MODE_SWAPTYPE 26 
#define MODE_PROFITCALCMODE 27 
#define MODE_MARGINCALCMODE 28 
#define MODE_MARGININIT 29 
#define MODE_MARGINMAINTENANCE 30 
#define MODE_MARGINHEDGED 31 
#define MODE_MARGINREQUIRED 32 
#define MODE_FREEZELEVEL 33 
//--- 
#define EMPTY -1 

// Convert timeframe from MQL4 to MQ:5 
ENUM_TIMEFRAMES TFMigrate(int tf) 
  { 
   switch(tf) 
     { 
      case 0: return(PERIOD_CURRENT); 
      case 1: return(PERIOD_M1); 
      case 5: return(PERIOD_M5); 
      case 15: return(PERIOD_M15); 
      case 30: return(PERIOD_M30); 
      case 60: return(PERIOD_H1); 
      case 240: return(PERIOD_H4); 
      case 1440: return(PERIOD_D1); 
      case 10080: return(PERIOD_W1); 
      case 43200: return(PERIOD_MN1); 
       
      case 2: return(PERIOD_M2); 
      case 3: return(PERIOD_M3); 
      case 4: return(PERIOD_M4);       
      case 6: return(PERIOD_M6); 
      case 10: return(PERIOD_M10); 
      case 12: return(PERIOD_M12); 
      case 16385: return(PERIOD_H1); 
      case 16386: return(PERIOD_H2); 
      case 16387: return(PERIOD_H3); 
      case 16388: return(PERIOD_H4); 
      case 16390: return(PERIOD_H6); 
      case 16392: return(PERIOD_H8); 
      case 16396: return(PERIOD_H12); 
      case 16408: return(PERIOD_D1); 
      case 32769: return(PERIOD_W1); 
      case 49153: return(PERIOD_MN1);       
      default: return(PERIOD_CURRENT); 
     } 
  }

bennettpagac

marksEvie Here is the mq5 version with similar functionality
double stopLoss;

// Calculate stopLoss based on order type
if (OrderType() == OP_BUY) {
  stopLoss = Bid - trailingStopDistance * Point();
} else {
  stopLoss = Ask + trailingStopDistance * Point();
}

bret28

differences in syntax and functionality.
Compatible with both MQL4 and MQL5
MQL4 to MQL5 Converter
mq4to5rewrite.mq4
StringTrimRight() and StringTrimLeft()
Include\Math\Alglib\arrayresize.mqh
cross-platform language,
MT4Orders.mqh
#endif // __MT4ORDERS__
Conversion from MQL4 to MQL5
MT4Orders.mqh
MT4-SNF to MT5-SNF
timeseries, graphic objects
    #define StringToLower                       DBG_MSG_MQLFUNC_RETURN(StringToLower)   #define StringToShortArray                 
(StringToShortArray)   #define StringToTime                       StringToTime)   #define StringToUpper                       (StringToUpper)   #define StructToTime                        (StructToTime)
    #define StringTrimLeft                      DBG_MSG_MQLFUNC_RETURN(StringTrimLeft)   #define StringTrimRight                     DBG_MSG_MQLFUNC_RETURN(StringTrimRight)   StringTrimStart(string)   StringTrimEnd(string)
 if(handle==INVALID_HANDLE)
SimpleCall\IndicatorsMQL5.mqh
buffer extern input ArrayResize

afranecki

I have tried this and alert messages appeared with the expired license, that's why I asked.
I would also like to know if any programmer can transfer an mql4 file to mql5 or program an mql5 from an mql4
🇧
Also now that i'm asking, I invite people to share the information about the profitable bots that we are working on and since we have them configured for now, I am using the following ones with positive results:
stock profit
AF Global expert
signalspro

hodkiewiczsidney

In short, in the coming year Microsoft will release a special browser for AI. I found an error in the translation from MQL4 to MQL5: the AI was unable to translate the MarketInfo function.

🇦 That’s because Ai doesn’t know the difference between outdated terms. You need to train your model to work properly, and even then it will still put out wrong code. Experience in mql4 and mql5 coding is needed to identify where the code is wrong.

🇨 upload your code here to get help.

raeganschinner

I want to learn mql programming. How do I get started ?
Mql4 or mql5 are the same?

admin

raeganschinner
MQL4 and MQL5 are similar programming languages, but they have some key differences:

Speed: MQL5 is significantly faster than MQL4, with execution speeds closer to C++.
Features: MQL5 offers more features than MQL4, including asynchronous operations, debugging on historical data, and the ability to use multiple threads.
Legacy Support: MQL4 is still widely used due to the large amount of existing code for the MetaTrader 4 platform. There are many more resources and code libraries available for MQL4.
Here's a breakdown of some factors to consider when choosing between MQL4 and MQL5:

New Development: If you're starting a new project, MQL5 is generally the better choice due to its speed and features.
Legacy Code: If you're working with existing MQL4 code, porting it to MQL5 may not be worthwhile.
Project Complexity: For complex projects, MQL5's features can be advantageous.
Here are some resources that you might find helpful:

MQL5 vs MQL4 Comparison: https://www.litefinance.org/blog/for-beginners/what-is-metatrader/mt4-vs-mt5/
New MQL5 Features Compared to MQL4: https://docs.mql4.com/mql5_language

🇦 DMIN
I have some of the best resources that will help you learn the MQL language very quickly. Just inbox me, and I'll share them with you. 🎫
🤑 Learn coding on MQL4 or MQL5 so that when you are not trading, you have another skill(Creating EAs and Indicators- that other people can still pay you to do

nmante

Does anyone have an MQL4 to MQL5 converter, or a tool to translate from MQL4 to MQL5? Or perhaps a skilled programmer proficient in both MQL4 and MQL5? 🙂

swolf

nmante You can download mql4 to mql5 converter tool from this website:
https://sharedlinks.shilidola.com/product/ex5-mql5-ex4-mq5-converter-decompiler-software-bundle-zip/
With that converter, you can easily convert any mql4 code to mql5 and vice versa.

For a skilled mql4/mql5 programmer, @admin fits the bill. Contact him for any type of mql project. His Telegram username is MTCollectorsAdmin

leilani24

swolf Thanks a lot for this
Please, I also need ex4 to ex5 converter. 😇

bferry

Is there anyone out there who might have access to TDI MQL4 or MQL5 code? I'm in desperate need of it. If anyone can help, please reach out to me. I've been searching tirelessly for a solution and haven't had any luck so far. Your assistance would be greatly appreciated.

admin

bferry Sent to your inbox. Login and Check

feestjadyn

If you check the code of BigRise EA (Forex version correlation system), you'll find it operates with five pairs. When the first three pairs go up while the last two decline, it checks if the pair with the longest candle has reached or surpassed the specified threshold (input in 'n' pips), and then initiates a trade.

I urgently need to convert the BigRise MQL4 code to MQL5 since I'm unable to back test it due to the MT4 back tester lacking support for multicurrency functionality, while the MT5 version does. Admin, could you please assist me in achieving this?

aufderharamy

Hello
I am looking for an equivalent
PlotIndexSetInteger(0,PLOT_SHOW_DATA,false)
which is in Meta5, I was for Meta4 and the amount in
Migrating from MQL4 to MQL5
I searched and did not find its equivalent for Meta4.
The goal is to have zero buffer values in any number of buffers we have in the separate_window indicator
Do not display.
Does anyone know about this?