Discussion of article "Migrating from MQL4 to MQL5" - page 9

[fxsaber]

Sergey Pavlov:

It was created at the same time as the article. But there is no sense in it without trading functions!

I made (posted in kodobase) MQL4 tradingfunctions that work simultaneously with MQL5 trading functions.

Therefore, the emulator may still make sense.

[fxsaber]

fxsaber:

I have made (uploaded to kodobase) MQL4 tradingfunctions that work simultaneously with MQL5 trading functions.

Therefore, there may still be a sense in the emulator.

https://www.mql5.com/en/code/16006

[fxsaber]

More on the topic.

[Aleksey Vyazmikin]

buh400:
I realised that this issue has already been brought up and I need to read another article:) My posts can be deleted

Please tell me what you have realised, what article to read and how to fix the above error?

Here I understand that it is for adding an indicator by the user - that's why I commented...

[fxsaber]

https://www.mql5.com/en/code/16006

Examples

[Yurij Izyumov]

I'm assuming everything

MQLInfoInteger(MQL5_....

should be changed to

MQLInfoInteger(MQL_

[Farrukh Aleem]

please correct

bool IsTesting()

bool MQLInfoInteger(MQL5_TESTING)

IsTesting Returns TRUE if an Expert Advisor is running in the testing mode, otherwise returns FALSE. MQLInfoInteger

bool IsTesting()

MQLInfoInteger(MQL_TESTER)

IsTesting Returns TRUE if an Expert Advisor is running in the testing mode, otherwise returns FALSE. MQLInfoInteger

MQL5_TESTING dont work please change it to MQL_TESTER.

[Farrukh Aleem]

Enum MAIN_SIGNAL_MODE { MODE_MAIN , MODE_SIGNAL}; 

enum ADX_MODE        { MODE_MAIN,         MODE_PLUSDI, MODE_MINUSDI };

2 same definition create error fix this error please.

[Anton Ohmat]

iBarShift is not working.

My execution - not quite sure, but it works correctly and seems to make sense

int iBarShift(string symbol,int tf,datetime time,bool exact=false)
  {
   if(time<0) return(-1);
   ENUM_TIMEFRAMES timeframe=TFMigrate(tf);
   datetime Arr[],time1;
   CopyTime(symbol,timeframe,0,1,Arr);
   time1=Arr[0];
   if(time1<time){
      return(0); /// If the given time is less than the bar opening time
   }
   if(CopyTime(symbol,timeframe,time,time1,Arr)>0)
     {
      return(ArraySize(Arr));
     }
   else return(-1);
  }

[Aleksey Vyazmikin]

I can't understand how to use the function

bool ObjectSetMQL4(string name,
                   int index,
                   double value)
  {
   switch(index)
     {
      case OBJPROP_TIME1:
         ObjectSetInteger(0,name,OBJPROP_TIME,(int)value);return(true);
      case OBJPROP_PRICE1:
         ObjectSetDouble(0,name,OBJPROP_PRICE,value);return(true);
      case OBJPROP_TIME2:
         ObjectSetInteger(0,name,OBJPROP_TIME,1,(int)value);return(true);
      case OBJPROP_PRICE2:
         ObjectSetDouble(0,name,OBJPROP_PRICE,1,value);return(true);
      case OBJPROP_TIME3:
         ObjectSetInteger(0,name,OBJPROP_TIME,2,(int)value);return(true);
      case OBJPROP_PRICE3:
         ObjectSetDouble(0,name,OBJPROP_PRICE,2,value);return(true);
      case OBJPROP_COLOR:
         ObjectSetInteger(0,name,OBJPROP_COLOR,(int)value);return(true);
      case OBJPROP_STYLE:
         ObjectSetInteger(0,name,OBJPROP_STYLE,(int)value);return(true);
      case OBJPROP_WIDTH:
         ObjectSetInteger(0,name,OBJPROP_WIDTH,(int)value);return(true);
      case OBJPROP_BACK:
         ObjectSetInteger(0,name,OBJPROP_BACK,(int)value);return(true);
      case OBJPROP_RAY:
         ObjectSetInteger(0,name,OBJPROP_RAY_RIGHT,(int)value);return(true);
      case OBJPROP_ELLIPSE:
         ObjectSetInteger(0,name,OBJPROP_ELLIPSE,(int)value);return(true);
      case OBJPROP_SCALE:
         ObjectSetDouble(0,name,OBJPROP_SCALE,value);return(true);
      case OBJPROP_ANGLE:
         ObjectSetDouble(0,name,OBJPROP_ANGLE,value);return(true);
      case OBJPROP_ARROWCODE:
         ObjectSetInteger(0,name,OBJPROP_ARROWCODE,(int)value);return(true);
      case OBJPROP_TIMEFRAMES:
         ObjectSetInteger(0,name,OBJPROP_TIMEFRAMES,(int)value);return(true);
      case OBJPROP_DEVIATION:
         ObjectSetDouble(0,name,OBJPROP_DEVIATION,value);return(true);
      case OBJPROP_FONTSIZE:
         ObjectSetInteger(0,name,OBJPROP_FONTSIZE,(int)value);return(true);
      case OBJPROP_CORNER:
         ObjectSetInteger(0,name,OBJPROP_CORNER,(int)value);return(true);
      case OBJPROP_XDISTANCE:
         ObjectSetInteger(0,name,OBJPROP_XDISTANCE,(int)value);return(true);
      case OBJPROP_YDISTANCE:
         ObjectSetInteger(0,name,OBJPROP_YDISTANCE,(int)value);return(true);
      case OBJPROP_FIBOLEVELS:
         ObjectSetInteger(0,name,OBJPROP_LEVELS,(int)value);return(true);
      case OBJPROP_LEVELCOLOR:
         ObjectSetInteger(0,name,OBJPROP_LEVELCOLOR,(int)value);return(true);
      case OBJPROP_LEVELSTYLE:
         ObjectSetInteger(0,name,OBJPROP_LEVELSTYLE,(int)value);return(true);
      case OBJPROP_LEVELWIDTH:
         ObjectSetInteger(0,name,OBJPROP_LEVELWIDTH,(int)value);return(true);

      default: return(false);
     }
   return(false);
  }

The compiler warns

'OBJPROP_TIME1' - undeclared identifier TZ_Sky_and_Ground_V_04.mq5 2891 12
'OBJPROP_TIME1' - constant expression required TZ_Sky_and_Ground_V_04.mq5 2891 12
'OBJPROP_PRICE1' - undeclared identifier TZ_Sky_and_Ground_V_04.mq5 2893 12
'OBJPROP_PRICE1' - constant expression required TZ_Sky_and_Ground_V_04.mq5 2893 12
'OBJPROP_TIME2' - undeclared identifier TZ_Sky_and_Ground_V_04.mq5 2895 12
'OBJPROP_TIME2' - constant expression required TZ_Sky_and_Ground_V_04.mq5 2895 12
'OBJPROP_PRICE2' - undeclared identifier TZ_Sky_and_Ground_V_04.mq5 2897 12
'OBJPROP_PRICE2' - constant expression required TZ_Sky_and_Ground_V_04.mq5 2897 12
'OBJPROP_TIME3' - undeclared identifier TZ_Sky_and_Ground_V_04.mq5 2899 12
'OBJPROP_TIME3' - constant expression required TZ_Sky_and_Ground_V_04.mq5 2899 12
'OBJPROP_PRICE3' - undeclared identifier TZ_Sky_and_Ground_V_04.mq5 2901 12
'OBJPROP_PRICE3' - constant expression required TZ_Sky_and_Ground_V_04.mq5 2901 12