Error inserting indicator alert for Metatrader 5

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Pedro
37
Pedro  
Hello, I'm new to the programming world and I have a doubt about how to put the audible alert with notification on the 3 Level ZZ Semafor indicator for MT5. I saw that the indicator for MT4 has the alert but the version for MT5 does not. I tried to insert comparing the two codes but there was an error when compiling, maybe due to lack of knowledge and practice I couldn't. The audible alert and notification are activated when colored balls appear on the graph. The parts of the code highlighted in yellow were the parts I added in an attempt to place the alert, and where the errors are possibly found.

Can someone who knows a little about programming help me how to do this?


//+------------------------------------------------------------------+

//|                                           3_Level_ZZ_Semafor.mq5 |

//+------------------------------------------------------------------+

//---- author of the indicator

#property copyright ""

//---- link to the author's website

#property link      ""

//---- indicator version

#property version   "1.00"

//---- drawing the indicator in the main window

#property indicator_chart_window 

//---- six buffers are used for calculation and drawing the indicator

#property indicator_buffers 6

//---- six plots are used

#property indicator_plots   6

//+----------------------------------------------+

//|  Bullish indicator drawing parameters        |

//+----------------------------------------------+

//---- drawing the indicator 1 as a symbol

#property indicator_type1   DRAW_ARROW

//---- use aqua color

#property indicator_color1  Aqua

//---- thickness of the indicator line is equal to 1

#property indicator_width1  1

//---- displaying the indicator bullish symbol label

#property indicator_label1  "Low"

//+----------------------------------------------+

//|  Bearish indicator drawing parameters        |

//+----------------------------------------------+

//---- drawing the indicator 2 as a symbol

#property indicator_type2   DRAW_ARROW

//---- use magenta color

#property indicator_color2  Magenta

//---- thickness of the indicator 2 line is equal to 1

#property indicator_width2  1

//---- displaying the indicator bearish symbol label

#property indicator_label2 "High"

//+----------------------------------------------+

//|  Bullish indicator drawing parameters        |

//+----------------------------------------------+

//---- drawing the indicator 3 as a symbol

#property indicator_type3 DRAW_ARROW

//---- aqua color is used as a symbol color

#property indicator_color3  Aqua

//---- thickness of the indicator line 3 is equal to 1

#property indicator_width3  1

//---- displaying the indicator bullish symbol label

#property indicator_label3  "Low"

//+----------------------------------------------+

//|  Bearish indicator drawing parameters        |

//+----------------------------------------------+

//---- drawing the indicator 4 as a symbol

#property indicator_type4 DRAW_ARROW

//---- magenta color is used as a symbol color

#property indicator_color4 Magenta

//---- thickness of the indicator line 4 is equal to 1

#property indicator_width4  1

//---- displaying the indicator bearish symbol label

#property indicator_label4 "High"

//+----------------------------------------------+

//|  Bullish indicator drawing parameters        |

//+----------------------------------------------+

//---- drawing the indicator 5 as a symbol

#property indicator_type5 DRAW_ARROW

//---- aqua color is used as a symbol color

#property indicator_color5 Aqua 

//---- thickness of the indicator line 5 is equal to 1

#property indicator_width5  1

//---- displaying the indicator bullish symbol label

#property indicator_label5  "Low"

//+----------------------------------------------+

//|  Bearish indicator drawing parameters        |

//+----------------------------------------------+

//---- drawing the indicator 6 as a symbol

#property indicator_type6 DRAW_ARROW

//---- magenta color is used as a symbol color

#property indicator_color6 Magenta

//---- thickness of the indicator line 4 is equal to 1

#property indicator_width6  1

//---- displaying of the bearish label of the indicator

#property indicator_label6 "High"

//+----------------------------------------------+

//|  Indicator input parameters                  |

//+----------------------------------------------+

input int Period1=5;

input int Deviation1=1;

input int Backstep1=3;

input int HighSymbol1=159;

input int LowSymbol1=159;


input int Period2=13;

input int Deviation2=8;

input int Backstep2=5;

input int HighSymbol2=108;

input int LowSymbol2=108;


input int Period3=34;

input int Deviation3=21;

input int Backstep3=12;

input int HighSymbol3=163;

input int LowSymbol3=163;


input int alertsOn=false;

input int alertsOnCurrent=false;

input int alertsMessage=true;

input int alertsSound=false;

input int alertsNotify=false;

input int alertsEmail=false;

//+----------------------------------------------+

//---- declaration of dynamic arrays that

// will be used as indicator buffers

double HighBuffer1[],LowBuffer1[];

double HighBuffer2[],LowBuffer2[];

double HighBuffer3[],LowBuffer3[];

//---- declaration of the integer variables for the start of data calculation

int StartBar1,StartBar2,StartBar3,StartBar;

//---- declaration of variables for storing indicators handles

int Handle1,Handle2,Handle3;

//+------------------------------------------------------------------+

//| Custom indicator initialization function                         |

//+------------------------------------------------------------------+  

void OnInit()

  {

//---- Initialize constants

   StartBar1=Period1+Deviation1+Backstep1+1;

   StartBar2=Period2+Deviation2+Backstep2+1;

   StartBar3=Period3+Deviation3+Backstep3+1;

   StartBar=(int)MathMax(StartBar1,MathMax(StartBar2,StartBar3));


//---- set dynamic array as an indicator buffer

   SetIndexBuffer(0,LowBuffer1,INDICATOR_DATA);

//---- shifting the start of drawing of the indicator 1

   PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,0);

//---- create a label to display in DataWindow

   PlotIndexSetString(0,PLOT_LABEL,"Low1");

//---- indicator symbol

   PlotIndexSetInteger(0,PLOT_ARROW,LowSymbol1);

//---- indexing elements in the buffer as timeseries

   ArraySetAsSeries(LowBuffer1,true);


//---- set dynamic array as an indicator buffer

   SetIndexBuffer(1,HighBuffer1,INDICATOR_DATA);

//---- shifting the start of drawing of the indicator 2

   PlotIndexSetInteger(1,PLOT_DRAW_BEGIN,0);

//---- create a label to display in DataWindow

   PlotIndexSetString(1,PLOT_LABEL,"High1");

//---- indicator symbol

   PlotIndexSetInteger(1,PLOT_ARROW,HighSymbol1);

//---- indexing elements in the buffer as timeseries

   ArraySetAsSeries(HighBuffer1,true);


//---- set dynamic array as an indicator buffer

   SetIndexBuffer(2,LowBuffer2,INDICATOR_DATA);

//---- shifting the start of drawing of the indicator 3

   PlotIndexSetInteger(2,PLOT_DRAW_BEGIN,0);

//---- create a label to display in DataWindow

   PlotIndexSetString(2,PLOT_LABEL,"Low2");

//---- indicator symbol

   PlotIndexSetInteger(2,PLOT_ARROW,LowSymbol2);

//---- indexing elements in the buffer as timeseries

   ArraySetAsSeries(LowBuffer2,true);


//---- set dynamic array as an indicator buffer

   SetIndexBuffer(3,HighBuffer2,INDICATOR_DATA);

//---- shifting the start of drawing of the indicator 4

   PlotIndexSetInteger(3,PLOT_DRAW_BEGIN,0);

//---- create a label to display in DataWindow

   PlotIndexSetString(3,PLOT_LABEL,"High2");

//---- indicator symbol

   PlotIndexSetInteger(3,PLOT_ARROW,HighSymbol2);

//---- indexing elements in the buffer as timeseries

   ArraySetAsSeries(HighBuffer2,true);


//---- set dynamic array as an indicator buffer

   SetIndexBuffer(4,LowBuffer3,INDICATOR_DATA);

//---- shifting the start of drawing of the indicator 5

   PlotIndexSetInteger(4,PLOT_DRAW_BEGIN,0);

//---- create a label to display in DataWindow

   PlotIndexSetString(4,PLOT_LABEL,"Low3");

//---- indicator symbol

   PlotIndexSetInteger(4,PLOT_ARROW,LowSymbol3);

//---- indexing elements in the buffer as timeseries

   ArraySetAsSeries(LowBuffer3,true);


//---- set dynamic array as an indicator buffer

   SetIndexBuffer(5,HighBuffer3,INDICATOR_DATA);

//---- shifting the start of drawing of the indicator 6

   PlotIndexSetInteger(5,PLOT_DRAW_BEGIN,0);

//---- create a label to display in DataWindow

   PlotIndexSetString(5,PLOT_LABEL,"High3");

//---- indicator symbol

   PlotIndexSetInteger(5,PLOT_ARROW,HighSymbol3);

//---- indexing elements in the buffer as timeseries

   ArraySetAsSeries(HighBuffer3,true);


//---- initializations of a variable for the indicator short name

//---- creating a name for displaying in a separate sub-window and in a tooltip

   IndicatorSetString(INDICATOR_SHORTNAME,"3_Level_ZZ_Semafor");

//---- determination of accuracy of displaying of the indicator values

   IndicatorSetInteger(INDICATOR_DIGITS,_Digits);


//---- Get indicator's handle

   Handle1=iCustom(NULL,0,"Examples\ZigZag",Period1,Deviation1,Backstep1);

   if(Handle1==INVALID_HANDLE) Print(" Failed to get handle of the ZigZag1 indicator");

//---- Get indicator's handle

   Handle2=iCustom(NULL,0,"Examples\ZigZag",Period2,Deviation2,Backstep2);

   if(Handle2==INVALID_HANDLE) Print(" Failed to get handle of the ZigZag2 indicator");

//---- Get indicator's handle

   Handle3=iCustom(NULL,0,"Examples\ZigZag",Period3,Deviation3,Backstep3);

   if(Handle3==INVALID_HANDLE) Print(" Failed to get handle of the ZigZag3 indicator");

//----

  }

//+------------------------------------------------------------------+

//| Custom indicator iteration function                              |

//+------------------------------------------------------------------+

int OnCalculate(const int rates_total,    // number of bars in history at the current tick

                const int prev_calculated,// number of bars calculated at previous call

                const datetime &time[],

                const double &open[],

                const double& high[],     // price array of maximums of price for the indicator calculation

                const double& low[],      // price array of minimums of price for the indicator calculation

                const double &close[],

                const long &tick_volume[],

                const long &volume[],

                const int &spread[])

  {

//---- checking the number of bars to be enough for the calculation

   if(rates_total<StartBar) return(0);


//---- declarations of local variables 

   int limit,to_copy1,to_copy2,to_copy3;


//---- calculation of the 'first' starting index for the bars recalculation loop

   if(prev_calculated>rates_total || prev_calculated<=0) // checking for the first start of calculation of an indicator

     {

      limit=rates_total-StartBar;  // starting index for calculation of all bars

      to_copy1=rates_total;

      to_copy2=rates_total;

      to_copy3=rates_total;

     }

   else

     {

      limit=rates_total-prev_calculated;

      to_copy1=limit+StartBar1;

      to_copy2=limit+StartBar2;

      to_copy3=limit+StartBar3;

     }

   //

   

   if (alertsOn)

   {

     if (alertsOnCurrent)

        int whichBar = 0;

     else   whichBar = 1;

     

    //

//---- copy the newly appeared data in the indicator buffers

   if(CopyBuffer(Handle1,1,0,to_copy1,HighBuffer1)<=0) return(0) doAlert(type1,time1," #1 UP");

   if(CopyBuffer(Handle1,2,0,to_copy1,LowBuffer1)<=0) return(0) doAlert(type1,time1," #1 DOWN");

   if(CopyBuffer(Handle2,1,0,to_copy2,HighBuffer2)<=0) return(0) doAlert(type2,time2," #2 UP");

   if(CopyBuffer(Handle2,2,0,to_copy2,LowBuffer2)<=0) return(0) doAlert(type2,time2," #2 DOWN");

   if(CopyBuffer(Handle3,1,0,to_copy3,HighBuffer3)<=0) return(0) doAlert(type3,time3," #3 UP");

   if(CopyBuffer(Handle3,2,0,to_copy3,LowBuffer3)<=0) return(0) doAlert(type3,time3," #3 DOWN");

//----

void doAlert(string& previousAlert, datetime& previousTime, string doWhat)

{

   string message;

   

      if (previousAlert != doWhat || previousTime != Time[0]) {

          previousAlert  = doWhat;

          previousTime   = Time[0];


          //

          //

          //

          //

          //


          message =  StringConcatenate(Symbol()," at ",TimeToStr(TimeLocal(),TIME_SECONDS)," 3 Level Semafor ",doWhat);

             if (alertsMessage) Alert(message);

             if (alertsNotify)  SendNotification(message);

             if (alertsEmail)   SendMail(StringConcatenate(Symbol()," 3 Level Semafor "),message);

             if (alertsSound)   PlaySound("alert2.wav");

      }

}     

   return(rates_total);

  }

//+------------------------------------------------------------------+

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