77 lines
4.4 KiB
MQL5
77 lines
4.4 KiB
MQL5
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//+------------------------------------------------------------------+
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//| BigDeals_api.mqh |
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2019, Yurich."
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#property link "https://www.mql5.com/ru/users/yurich"
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#property version "1.00"
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//+------------------------------------------------------------------+
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//| Event numbers for BigDeals |
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//+------------------------------------------------------------------+
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#define BIGDEALS_TRADE_ASK 7702 // event number for single trade Ask
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#define BIGDEALS_TRADE_BID 7703 // event number for single trade Bid
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#define BIGDEALS_CHAIN_ASK 7704 // event number for chain of trades Ask
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#define BIGDEALS_CHAIN_BID 7705 // event number for chain of trades Bid
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#define BIGDEALS_LEVEL_ASK 7706 // event number for level of trades Ask
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#define BIGDEALS_LEVEL_BID 7707 // event number for level of trades Bid
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#define BIGDEALS_LEVEL_TOTAL 7708 // event number for level of trades Ask+Bid
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#define BIGDEALS_LEVEL_DELTA 7709 // event number for level of trades Ask-Bid
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//+------------------------------------------------------------------+
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//| custom event handling function |
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//+------------------------------------------------------------------+
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typedef void(*CustomHandler)(long _volume,double _price);
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//+------------------------------------------------------------------+
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//| Class CBigDeals |
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//| Purpose: Class of BigDeals indicator. |
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//| |
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//| The class allows you to receive events from BigDeals indicator |
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//| and set new filter values. |
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//| Event processing occurs in user-defined functions of the form: |
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//| |
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//| void NameFunction(long volume, double price). |
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//| |
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//| Each event requires its own handler. |
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//+------------------------------------------------------------------+
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class CBigDeals
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{
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CustomHandler m_handles[8];
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public:
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CBigDeals();
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// receiving events of indicator
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bool CheckEvents(const int event,const long &lparam,const double &dparam,const string &sparam);
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// add user handler for event
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bool AddHandler(const uint _event,CustomHandler _func);
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// setting filter value for single trades
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void SetFilterSingleTrades(const long _volume) { EventChartCustom(0,BIGDEALS_TRADE_ASK, _volume,0,NULL);}
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// setting filter value for chain of trades
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void SetFilterChainTrades(const long _volume) { EventChartCustom(0,BIGDEALS_CHAIN_ASK, _volume,0,NULL);}
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// setting filter value for level Ask,Bid
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void SetFilterLevelAskBid(const long _volume) { EventChartCustom(0,BIGDEALS_LEVEL_ASK, _volume,0,NULL);}
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// setting filter value for level Ask+Bid
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void SetFilterLevelTotal(const long _volume) { EventChartCustom(0,BIGDEALS_LEVEL_TOTAL,_volume,0,NULL);}
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// setting filter value for level delta
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void SetFilterLevelDelta(const long _volume) { EventChartCustom(0,BIGDEALS_LEVEL_DELTA,_volume,0,NULL);}
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};
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//+------------------------------------------------------------------+
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CBigDeals::CBigDeals()
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{
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for(int i=0; i<8; i++) m_handles[i]=NULL;
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}
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//+------------------------------------------------------------------+
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bool CBigDeals::AddHandler(const uint _event,CustomHandler _func)
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{
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if(_event<BIGDEALS_TRADE_ASK || _event>BIGDEALS_LEVEL_DELTA) return(false);
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m_handles[_event-BIGDEALS_TRADE_ASK]=_func;
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return(true);
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}
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//+------------------------------------------------------------------+
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bool CBigDeals::CheckEvents(const int event,const long &lparam,const double &dparam,const string &sparam)
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{
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int x=event-CHARTEVENT_CUSTOM-BIGDEALS_TRADE_ASK;
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if(x<0 || x>7 || dparam==0) return(false);
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if(m_handles[x]==NULL) return(false);
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CustomHandler f=m_handles[x];
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f(lparam,dparam);
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return(true);
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}
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//+------------------------------------------------------------------+
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