multicurrency datas with OnChartEvent() and EventChartCustom()

Quoting paulselvan

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Hello, There are MT5 programs where OnChartEvent() and EventChartCustom() are used to get multicurrency datas The program is explained in this article Is it possible to adapt it for MT4 ...because what i tried is bugging

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Quoting paulselvan

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Hello, There are MT5 programs where OnChartEvent() and EventChartCustom() are used to get multicurrency datas The program is explained in this article Is it possible to adapt it for MT4 ...because what i tried is bugging

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Quoting paulselvan

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Hello beerrun, What's the link between them?

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Quoting Beerrun

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{quote} Did you read the link? iClose(Symbol(),Period(),shift); You can access the close price for any Symbol or period, regardless of the chart symbol. Nicholishen will give you a better solution however.

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Quoting Nicholishen

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{quote} I think OP is interested in the event handling aspect of chart-events instead of the "how to" of accessing time-series data from other instruments...

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#property description "The Expert Advisor shows the work of iSPY indicator"
//+------------------------------------------------------------------+
int OnInit(){  
   if(iCustom("GBPUSD",PERIOD_M1,"iSpy",ChartID(),0)==INVALID_HANDLE) { Print("Error in setting of spy on GBPUSD"); return(true);}
   if(iCustom("EURUSD",PERIOD_M1,"iSpy",ChartID(),1)==INVALID_HANDLE) { Print("Error in setting of spy on EURUSD"); return(true);}
   if(iCustom("USDJPY",PERIOD_M1,"iSpy",ChartID(),2)==INVALID_HANDLE) { Print("Error in setting of spy on USDJPY"); return(true);}
      
   Print("Spys ok, waiting for data...");
  
   return(0);
}
//+------------------------------------------------------------------+
//| The Standard event handler.                                      |
//| In this case it is used for decoding of spy messages, sent by    |
//| iSPY spy indicator                                               |
//+------------------------------------------------------------------+
void OnChartEvent(const int id,         // event id:
                                        // if id-CHARTEVENT_CUSTOM=0 - "initialization" event
                  const long&   lparam, // chart period
                  const double& dparam, // price
                  const string& sparam  // symbol
                 ){
   if(id>=CHARTEVENT_CUSTOM){
      PrintFormat("%s -> id=%d: %s %s price=%f",TimeToString(TimeCurrent(),TIME_SECONDS),id-CHARTEVENT_CUSTOM,sparam,EnumToString((ENUM_TIMEFRAMES)lparam),dparam);
   }
}

#property description "iSpy agent-indicator. If you want to get ticks, attach it to the chart"
#property indicator_chart_window
input long            chart_id=0;        // chart id
input ushort          custom_event_id=0; // event id
//+------------------------------------------------------------------+
[b]int OnCalculate (const int rates_total, const int prev_calculated, const int begin, const double& price[]){[/b]
[b]   double price_current=price[rates_total-1];[/b]
   if(prev_calculated==0) {
      // Generate and send "Initialization" event
      EventChartCustom(chart_id,0,(long)_Period,price_current,_Symbol);
      return(rates_total);
   }
  
   // When the new tick, let's generate the "New tick" custom event
   // that can be processed by Expert Advisor or indicator
   EventChartCustom(chart_id,custom_event_id+1,(long)_Period,price_current,_Symbol);
  
   return(rates_total);
}

#property description "iSpy agent-indicator. If you want to get ticks, attach it to the chart"
#property indicator_chart_window
input long            chart_id=0;        // chart id
input ushort          custom_event_id=0; // event id
//+------------------------------------------------------------------+
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[]){  
   double price_current = close[rates_total-1];//price[rates_total-1];//Bid ?
   if(prev_calculated == 0) {
      // Generate and send "Initialization" event
      EventChartCustom(chart_id,0,(long)_Period,price_current,_Symbol);
      Print("at0");
      return(rates_total);
   }
  
   // When the new tick, let's generate the "New tick" custom event
   // that can be processed by Expert Advisor or indicator
   EventChartCustom(chart_id,custom_event_id+1,(long)_Period,price_current,_Symbol);
   Print("at1");
   return(rates_total);
}

int OnCalculate (const int rates_total, const int prev_calculated, const int begin, const double& price[]){
   double price_current = price[rates_total-1];

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[]){  
   double price_current = close[rates_total-1];

/* SendTicksIndicator */
#property strict
#property indicator_chart_window
#define TICK_SEND 1
#define TICK_RECEIVE CHARTEVENT_CUSTOM + TICK_SEND
int OnInit()
{
   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[])
{
   for (long i=ChartFirst(); i>=0; i=ChartNext(i)) {
      EventChartCustom(i, TICK_SEND, 0, Bid, Symbol());
   }
   return(rates_total);
}

/* RECEIVER EA */
#property strict
#define TICK_SEND 1
#define TICK_RECEIVE CHARTEVENT_CUSTOM + TICK_SEND

int OnInit()
{
   return(INIT_SUCCEEDED);
}
void OnTick(){ }
void OnChartEvent(const int id,
                  const long &lparam,
                  const double &dparam,
                  const string &sparam)
{
   if (id == TICK_RECEIVE) {
      Comment(StringFormat(
         "%s = %s", 
         sparam, 
         DoubleToString(dparam, (int)SymbolInfoInteger(sparam, SYMBOL_DIGITS))
      ));
   }
}

Quoting paulselvan

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Hi I tried your programs but there are any output datas ...do i missed something

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Quoting paulselvan

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Now i got it and it works fine ----------------------------------------- I noticed there is a major difference : we must open several charts and attach in each one "SendTicksIndicator" for receiving their datas ----------------------------------------------------------------- My question : Is it possible to open only one chart - containing EA - from where we can "spy" all studied currencies (without openning their charts)?

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Quoting paulselvan

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Word "spy" - employed in the article - is for the indicator "SendTickIndicator" Can we call it from EA itself

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Quoting paulselvan

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Word "spy" - employed in the article - is for the indicator "SendTickIndicator" Can we call it from EA itself

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Quoting Nicholishen

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{quote} This doesn't explain anything. What do YOU mean when you say "spy"?

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Quoting Beerrun

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{quote} iCustom is used to call the indicators on OnInit to check the indicators are loaded. But that requires opening their charts

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Quoting paulselvan

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{quote} yes "exSpy.mq5" EA calls "iSpy.mq5" indicator via iCustom() which initiate events But it doesent require to open their charts Please try "iSpy.mq5" & "exSpy.mq5" in MT5 You will see only chart containig EA is opened ...all other cuurencies broadcast their datas to the recepter EA

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Quoting Nicholishen

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{quote} You'll need open charts to do the same with MT4. Otherwise you can using polling with an OnTimer event-loop.

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