Toute question des nouveaux arrivants sur MQL4 et MQL5, aide et discussion sur les algorithmes et les codes. - page 586

Nouveau commentaire
 
Alexey Viktorov:
Pourquoi pas ? Si, pendant le test, MT4 est connecté au compte sur lequel la commission est présente, il en tiendra certainement compte.

Essayez ensuite la fonction OrderCommission() pendant les tests et voyez ce que cela donne :)

 
Sergii Krutyi:

Essayez ensuite la fonction OrderCommission() pendant les tests et voyez ce que cela donne : )

Commission.

 
Andrey Barinov:
https://www.mql5.com/ru/docs/constants/structures/mqldatetime

Merci, comment corriger cette erreur ?

'TargetTimeFrame' - cannot convert enum max_min.mq5     397     17

   if(Period()>=TargetTimeFrame)// строка 397
      return( rates_total );

Dans les paramètres.

enum AvailablePeriods
  {
   PreviousDay=PERIOD_D1,// Previous day
   PreviousWeek=PERIOD_W1,// Previous week
   PreviousMonth=PERIOD_MN1 // Previous month
  };
  input AvailablePeriods TargetTimeFrame=PreviousDay; // Period
  
  
 
Vitaly Muzichenko:

Commission.

Qui sera 0 et non la commission réelle sur le compte, la personne demande dans le testeur quelle sera la valeur.

 
Je n'arrive pas à comprendre à quoi servent les accolades { }, quand et comment les utiliser, et quand il faut les utiliser ; je suis au stade naissant et j'apprends encore les fonctions les plus simples, mais je ne veux pas mettre ces signes juste parce que j'en ai besoin, j'ai besoin de comprendre quand et comment les utiliser.
 
Evgentlt:
Je n'arrive pas à comprendre pourquoi les accolades { } quand et comment les utiliser ; je suis au stade embryonnaire et j'apprends encore les fonctions les plus simples, mais je ne veux pas mettre ces signes juste parce que j'en ai besoin, j'ai besoin de comprendre quand et comment les utiliser.

Peut-être que cela sera suffisant pour comprendre.

Envoici d'autres.

Составной оператор - Операторы - Основы языка - Справочник MQL4
Составной оператор - Операторы - Основы языка - Справочник MQL4
  • docs.mql4.com
Составной оператор - Операторы - Основы языка - Справочник MQL4
 
Evgentlt:
Je n'arrive pas à comprendre pourquoi les accolades { } sont nécessaires, quand et comment les utiliser, et quand il faut les utiliser ; je suis au stade naissant et j'apprends encore les fonctions les plus simples, mais je ne veux pas mettre ces signes juste parce qu'ils sont nécessaires, j'ai besoin de comprendre quand et comment les utiliser.
Un ou plusieurs opérateurs de n'importe quel type, entourés d'accolades { }.
 
bij:

Merci, comment corriger cette erreur ?

Dans les paramètres.

J'ai besoin de plus de code.

 
Andrey Barinov :

Besoin de plus de code

 #property strict
#property indicator_chart_window
#property indicator_buffers 3
#property indicator_color1 C'83,173,52'
#property indicator_color2 C'83,173,52'
#property indicator_color3 C'83,173,52'
#property indicator_style1 STYLE_DASH ;
#property indicator_style2 STYLE_SOLID ;
#property indicator_style3 STYLE_DASH ;
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
enum AvailablePeriods
  {
   PreviousDay= PERIOD_D1 , // Previous day
   PreviousWeek= PERIOD_W1 , // Previous week
   PreviousMonth= PERIOD_MN1 // Previous month
  };
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
struct TimeRange
  {
   bool               Failed;
   datetime           StartTime;
   datetime           EndTime;

                     TimeRange()
     {
      Failed= false ;
      StartTime= 0 ;
      EndTime= 0 ;
     }
  };
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
struct PeriodData
  {
   TimeRange         PeriodRange;

   double             PeriodHigh;
   double             PeriodClose;
   double             PeriodLow;

                     PeriodData()
     {
      PeriodHigh= 0 ;
      PeriodClose= 0 ;
      PeriodLow= 0 ;
     }
  };

input string _sepTimeShift= "" ; // /////// Calculation
input ENUM_TIMEFRAMES Precision= PERIOD_H1 ; // Precision
input AvailablePeriods TargetTimeFrame=PreviousDay; // Period
input int PeriodsToCalculate= 1 ; // Periods to calculate
input int HoursShift=- 2 ; // Hours shift
input int MinutesShift= 0 ; // Minutes shift
input bool IgnoreSunday= true ; // Ignore Sunday
input bool IgnoreSaturday= true ; // Ignore Saturday

input string _sepBufferVisibility= "" ; // /////// Buffer visibility
input bool ShowHighBuffer= true ; // High
input bool ShowCloseBuffer= true ; // Close
input bool ShowLowBuffer= true ; // Low

input string _sepProbeVisibility= "" ; // /////// Probe visibility
input bool ShowHighProbe= true ; // High
input bool ShowCloseProbe= true ; // Close
input bool ShowLowProbe= true ; // Low

input string _sepProbeColor= "" ; // /////// Probe color
input color HighColor= C'83,173,52' ; // High
input color CloseColor= C'83,173,52' ; // Close
input color LowColor= C'83,173,52' ; // Low

input string _sepProbeSize= "" ; // /////// Probe size
input int HighSize= 2 ; // High
input int CloseSize= 2 ; // Close
input int LowSize= 2 ; // Low

input string _sepCustomLabel= "" ; // /////// Data window label
input string HighLabel= "P.Day High" ; // High
input string CloseLabel= "P.Day Close" ; // Close
input string LowLabel= "P.Day Low" ; // Low

string HighProbeName= "HighPrevious" + IntegerToString (TargetTimeFrame)+ IntegerToString (HoursShift)+ IntegerToString (MinutesShift);
string CloseProbeName= "ClosePrevious" + IntegerToString (TargetTimeFrame)+ IntegerToString (HoursShift)+ IntegerToString (MinutesShift);
string LowProbeName= "LowPrevious" + IntegerToString (TargetTimeFrame)+ IntegerToString (HoursShift)+ IntegerToString (MinutesShift);

double PeriodHighBuffer[];
double PeriodCloseBuffer[];
double PeriodLowBuffer[];

PeriodData TempData;
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
PeriodData CalculateCommonSRData( datetime targetTime,TimeRange &periodRange)
  {
   if (TempData.PeriodRange.StartTime==periodRange.StartTime && 
      TempData.PeriodRange.EndTime==periodRange.EndTime)
       return ( TempData );

   PeriodData result;

   int firstBar= iBarShift ( Symbol (),Precision,periodRange.StartTime);
   int lastBar = iBarShift ( Symbol (),Precision,periodRange.EndTime);

   datetime firstBarTime= iTime ( Symbol (),Precision,firstBar);
   datetime lastBarTime = iTime ( Symbol (),Precision,lastBar);

   int startBar=lastBar;
   int bars=firstBar-lastBar+ 1 ;

   int highestBar= iHighest ( Symbol (),Precision, MODE_HIGH ,bars,startBar);
   int lowestBar = iLowest ( Symbol (),Precision, MODE_LOW ,bars,startBar);

   result.PeriodRange= periodRange;
   result.PeriodHigh = iHigh ( Symbol (),Precision,highestBar);
   result.PeriodClose= iClose ( Symbol (),Precision,lastBar);
   result.PeriodLow= iLow ( Symbol (),Precision,lowestBar);

   TempData=result;
   return ( result );
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
datetime MoveDateToEndOfDay( datetime target)
  {
   MqlDateTime targetTime;
   TimeToStruct (target,targetTime);

   targetTime.hour= 23 ;
   targetTime.min = 59 ;
   targetTime.sec = 59 ;

   return ( StructToTime ( targetTime ) );
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
datetime MoveDateToEndOfMonth( datetime target)
  {
   MqlDateTime targetTime;
   TimeToStruct (target,targetTime);

   targetTime.mon++;
   targetTime.day= 1 ;
   targetTime.hour= 0 ;
   targetTime.min = 0 ;
   targetTime.sec = 0 ;

   return ( StructToTime ( targetTime ) - 1 );
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
datetime MoveDateToEndOfWeek( datetime target)
  {
   MqlDateTime targetTime;
   TimeToStruct (target,targetTime);

   targetTime.day += 5 - targetTime.day_of_week;
   targetTime.hour = 23 ;
   targetTime.min = 59 ;
   targetTime.sec = 59 ;

   return ( StructToTime ( targetTime ) );
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
TimeRange CalculateTargetTimeRange( datetime targetTime,AvailablePeriods targetPeriod, int periodShift, ENUM_TIMEFRAMES precision, int hoursShift, int minutesShift, bool ignoreSunday, bool ignoreSaturday)
  {
   TimeRange currentRange=CalculateTimeRange(targetTime,( ENUM_TIMEFRAMES )( int )targetPeriod,precision, 0 ,hoursShift,minutesShift,ignoreSunday,ignoreSaturday);

   if (targetTime<currentRange.StartTime)
      periodShift++;

   if (targetTime>currentRange.EndTime)
      periodShift--;

   if (periodShift== 0 )
       return ( currentRange );

   TimeRange target=CalculateTimeRange(targetTime,( ENUM_TIMEFRAMES )( int )targetPeriod,precision,periodShift,hoursShift,minutesShift,ignoreSunday,ignoreSaturday);
   return ( target );
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
TimeRange CalculateTimeRange( datetime targetTime, ENUM_TIMEFRAMES targetPeriod, ENUM_TIMEFRAMES precision, int periodShift, int hoursShift, int minutesShift, bool ignoreSunday, bool ignoreSaturday)
  {
   if (targetPeriod<precision)
      precision=targetPeriod;

   TimeRange result;
   int totalShift=hoursShift* 3600 +minutesShift* 60 ;

// Start time.
   int periodStartBar= iBarShift ( Symbol (),targetPeriod,targetTime)+periodShift;
   datetime periodStartTime= iTime ( Symbol (),targetPeriod,periodStartBar);

   int precisePeriodStartBar= iBarShift ( Symbol (),precision,periodStartTime);
   datetime precisePeriodStartTime= iTime ( Symbol (),precision,precisePeriodStartBar);

   if (precisePeriodStartTime== 0 )
      result.Failed= true ;

   if (precisePeriodStartTime>periodStartTime)
     {
      precisePeriodStartTime= iTime ( Symbol (),precision,precisePeriodStartBar+ 1 );

       if (precisePeriodStartTime== 0 )
         result.Failed= true ;
     }

   if (result.Failed)
       return ( result );

   if (precisePeriodStartTime<periodStartTime)
      precisePeriodStartTime=MoveDateToEndOfDay(precisePeriodStartTime)+ 1 ;

   result.StartTime=precisePeriodStartTime;

// End time.
   int nextPeriodStartBar = periodStartBar - 1 ;
   if (nextPeriodStartBar >= 0 )
     {
       //        Exact calculation.
       datetime nextPeriodStartTime= iTime ( Symbol (),targetPeriod,nextPeriodStartBar);

       int preciseNextPeriodStartBar= iBarShift ( Symbol (),precision,nextPeriodStartTime);
       datetime preciseNextPeriodStartTime= iTime ( Symbol (),precision,preciseNextPeriodStartBar);

       if (preciseNextPeriodStartTime== 0 )
         result.Failed= true ;

       if (preciseNextPeriodStartTime>=nextPeriodStartTime)
        {
         preciseNextPeriodStartTime= iTime ( Symbol (),precision,preciseNextPeriodStartBar+ 1 );

         if (preciseNextPeriodStartTime== 0 )
            result.Failed= true ;
        }

       if (result.Failed)
         return ( result );

       if (preciseNextPeriodStartTime<nextPeriodStartTime)
         preciseNextPeriodStartTime=MoveDateToEndOfDay(preciseNextPeriodStartTime);

       //if(TimeHour(preciseNextPeriodStartTime)==0)
               MqlDateTime timestruct={ 0 };
      :: TimeToStruct (preciseNextPeriodStartTime,timestruct);

       if (timestruct.hour== 0 )

         preciseNextPeriodStartTime--;

      result.EndTime=preciseNextPeriodStartTime;
     }
   else
     {
       //        Approximation.
       switch (targetPeriod)
        {
         case PERIOD_D1 :
            result.EndTime=MoveDateToEndOfDay( iTime ( Symbol (),precision, 0 ));
             break ;
         case PERIOD_W1 :
            result.EndTime=MoveDateToEndOfWeek( iTime ( Symbol (),precision, 0 ));
             break ;
         case PERIOD_MN1 :
            result.EndTime=MoveDateToEndOfMonth( iTime ( Symbol (),precision, 0 ));
             break ;
        }
     }

// Resulting shifted time.
   result.StartTime+=totalShift;
   result.EndTime+=totalShift;

// Sunday and saturday fix.
   if (targetPeriod== PERIOD_D1 )
     {
       //      if(TimeDayOfWeek(result.StartTime)==SUNDAY && ignoreSunday)
       //         result.StartTime-=86400;
       //
       //      if(TimeDayOfWeek(result.EndTime)==SATURDAY && ignoreSaturday)
       //         result.EndTime+=86400;
       //     }
       //
       MqlDateTime timestruct={ 0 };
      :: TimeToStruct (result.StartTime,timestruct);

       if (timestruct.day_of_week== SATURDAY && ignoreSaturday)
         result.StartTime-= 86400 ;
//         MqlDateTime timestruct={0};
//      ::TimeToStruct(preciseNextPeriodStartTime,timestruct);
//
//      if(timestruct.preciseNextPeriodStartTime==0)

         :: TimeToStruct (result.EndTime,timestruct);

       if (timestruct.day_of_week== SATURDAY && ignoreSaturday)
         result.EndTime+= 86400 ;
     }

   return ( result );
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void DrawRightPriceProbe( int window, bool selectable, string name, int lineWidth, color lineColor, datetime date, double price, bool visible= true , int zorder= 0 , string tooltip= "\n" )
  {
   bool create= false ;
   int foundAtWindow= ObjectFind ( ChartID (),name);

   if (foundAtWindow< 0 )
      create= true ;

   if (foundAtWindow>= 0 && window!=foundAtWindow)
     {
       ObjectDelete ( ChartID (),name);
      create= true ;
     }

   if (!create)
     {
       ObjectSetInteger ( ChartID (),name, OBJPROP_TIME ,date);
       ObjectSetDouble ( ChartID (),name, OBJPROP_PRICE ,price);
     }
   else
       ObjectCreate ( ChartID (),name, OBJ_ARROW_RIGHT_PRICE ,window,date,price);

   ObjectSetInteger ( ChartID (),name, OBJPROP_COLOR ,lineColor);
   ObjectSetInteger ( ChartID (),name, OBJPROP_WIDTH ,lineWidth);
   ObjectSetInteger ( ChartID (),name, OBJPROP_HIDDEN ,!selectable);
   ObjectSetInteger ( ChartID (),name, OBJPROP_SELECTABLE ,selectable);

   if (!visible)
       ObjectSetInteger ( ChartID (),name, OBJPROP_TIMEFRAMES , OBJ_NO_PERIODS );

   ObjectSetInteger ( ChartID (),name, OBJPROP_ZORDER ,zorder);
   ObjectSetString ( ChartID (),name, OBJPROP_TOOLTIP ,tooltip);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void OnDeinit ( const int reason)
  {
   ObjectDelete ( ChartID (),HighProbeName);
   ObjectDelete ( ChartID (),CloseProbeName);
   ObjectDelete ( ChartID (),LowProbeName);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int OnInit ()
  {
   PlotIndexGetInteger ( 0 , PLOT_DRAW_TYPE , DRAW_LINE );
   PlotIndexGetInteger ( 1 , PLOT_DRAW_TYPE , DRAW_LINE );
   PlotIndexGetInteger ( 2 , PLOT_DRAW_TYPE , DRAW_LINE );

   SetIndexBuffer ( 0 ,PeriodHighBuffer, INDICATOR_DATA );
   SetIndexBuffer ( 1 ,PeriodCloseBuffer, INDICATOR_DATA );
   SetIndexBuffer ( 2 ,PeriodLowBuffer, INDICATOR_DATA );

   PlotIndexSetString ( 0 , PLOT_LABEL ,HighLabel);
   PlotIndexSetString ( 1 , PLOT_LABEL ,CloseLabel);
   PlotIndexSetString ( 2 , PLOT_LABEL ,LowLabel);

   return ( INIT_SUCCEEDED );
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
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 &tick_volume[], const long &volume[], const int &spread[])
  {
   if ( Period ()>=TargetTimeFrame)
       return ( rates_total );

   int total=rates_total-prev_calculated;

   if (total> 0 )
     {
       int i = - 1 ;
       int n = ( total + 7 ) / 8 ;
       int remainingPeriods=PeriodsToCalculate;

      PeriodData currentData;
      TimeRange currentTimeRange;
      TimeRange previousTimeRange;

       switch (total% 8 )
        {
         case 0 : OnCalculateStep( currentData, currentTimeRange, previousTimeRange, remainingPeriods, time, ++i );
         case 7 : OnCalculateStep( currentData, currentTimeRange, previousTimeRange, remainingPeriods, time, ++i );
         case 6 : OnCalculateStep( currentData, currentTimeRange, previousTimeRange, remainingPeriods, time, ++i );
         case 5 : OnCalculateStep( currentData, currentTimeRange, previousTimeRange, remainingPeriods, time, ++i );
         case 4 : OnCalculateStep( currentData, currentTimeRange, previousTimeRange, remainingPeriods, time, ++i );
         case 3 : OnCalculateStep( currentData, currentTimeRange, previousTimeRange, remainingPeriods, time, ++i );
         case 2 : OnCalculateStep( currentData, currentTimeRange, previousTimeRange, remainingPeriods, time, ++i );
         case 1 : OnCalculateStep( currentData, currentTimeRange, previousTimeRange, remainingPeriods, time, ++i );
        }

       while (--n> 0 )
        {
         OnCalculateStep(currentData,currentTimeRange,previousTimeRange,remainingPeriods,time,++i);
         OnCalculateStep(currentData,currentTimeRange,previousTimeRange,remainingPeriods,time,++i);
         OnCalculateStep(currentData,currentTimeRange,previousTimeRange,remainingPeriods,time,++i);
         OnCalculateStep(currentData,currentTimeRange,previousTimeRange,remainingPeriods,time,++i);
         OnCalculateStep(currentData,currentTimeRange,previousTimeRange,remainingPeriods,time,++i);
         OnCalculateStep(currentData,currentTimeRange,previousTimeRange,remainingPeriods,time,++i);
         OnCalculateStep(currentData,currentTimeRange,previousTimeRange,remainingPeriods,time,++i);
         OnCalculateStep(currentData,currentTimeRange,previousTimeRange,remainingPeriods,time,++i);
        }

       if (total== 1 )
        {
         TimeRange olderBarRange=CalculateTargetTimeRange(time[ 1 ],TargetTimeFrame, 1 ,Precision,HoursShift,MinutesShift,IgnoreSunday,IgnoreSaturday);

         if (olderBarRange.StartTime!=currentTimeRange.StartTime)
           {
            PeriodHighBuffer[ 1 ]= EMPTY_VALUE ;
            PeriodCloseBuffer[ 1 ]= EMPTY_VALUE ;
            PeriodLowBuffer[ 1 ]= EMPTY_VALUE ;
           }
        }
     }

   if (total> 0 || prev_calculated> 0 )
     {
       if (ShowHighProbe && ShowHighBuffer)
         DrawRightPriceProbe(
                             ChartWindowFind (),
                             false ,
                             HighProbeName,
                             HighSize,
                             HighColor,
                             time[ 0 ],
                             PeriodHighBuffer[ 0 ]
                             );

       if (ShowCloseProbe && ShowCloseBuffer)
         DrawRightPriceProbe(
                             ChartWindowFind (),
                             false ,
                             CloseProbeName,
                             CloseSize,
                             CloseColor,
                             time[ 0 ],
                             PeriodCloseBuffer[ 0 ]
                             );

       if (ShowLowProbe && ShowLowBuffer)
         DrawRightPriceProbe(
                             ChartWindowFind (),
                             false ,
                             LowProbeName,
                             LowSize,
                             LowColor,
                             time[ 0 ],
                             PeriodLowBuffer[ 0 ]
                             );
     }

   return ( rates_total );
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void OnCalculateStep(PeriodData &currentData,TimeRange &currentTimeRange,TimeRange &previousTimeRange, int &remainingPeriods, const datetime &time[], int i)
  {
   if (currentTimeRange.Failed || remainingPeriods< 1 )
     {
      PeriodHighBuffer[i]= EMPTY_VALUE ;
      PeriodCloseBuffer[i]= EMPTY_VALUE ;
      PeriodLowBuffer[i]= EMPTY_VALUE ;
       return ;
     }

   currentTimeRange=CalculateTargetTimeRange(time[i],TargetTimeFrame, 1 ,Precision,HoursShift,MinutesShift,IgnoreSunday,IgnoreSaturday);

   if (i== 0 )
     {
      currentData=CalculateCommonSRData(time[i],currentTimeRange);
      previousTimeRange=currentTimeRange;
     }

   if (previousTimeRange.StartTime==currentTimeRange.StartTime)
     {
       if (ShowHighBuffer)
         PeriodHighBuffer[i]=currentData.PeriodHigh;

       if (ShowCloseBuffer)
         PeriodCloseBuffer[i]=currentData.PeriodClose;

       if (ShowLowBuffer)
         PeriodLowBuffer[i]=currentData.PeriodLow;
     }
   else
     {
      PeriodHighBuffer[i]= EMPTY_VALUE ;
      PeriodCloseBuffer[i]= EMPTY_VALUE ;
      PeriodLowBuffer[i]= EMPTY_VALUE ;

       if (--remainingPeriods< 1 )
         return ;

      currentData=CalculateCommonSRData(time[i],currentTimeRange);
     }

   previousTimeRange=currentTimeRange;
  }
//+------------------------------------------------------------------+
entier)
 
bij:
Ensemble)

C'est ainsi qu'il se compile :

 if(Period()>=(ENUM_TIMEFRAMES) TargetTimeFrame)
      return( rates_total );


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