An MQL4 function
Hello Developers
I'm stuck here, Can anyone help me with a function that works this Way?
"I want it to open just one position. If that position hits TP, then EA must open another trade in the same direction. But if trade hits SL, EA must open a trade in the other direction"
- Reverse Positions
- Experts: Lossless MA
- fractals ea mt5 buy when down arrow and sell when up arrow appear
Fadhili Kwaka Kombo: Hello Developers. I'm stuck here, Can anyone help me with a function that works this Way? "I want it to open just one position. If that position hits TP, then EA must open another trade in the same direction. But if trade hits SL, EA must open a trade in the other direction"
That is not a function. That is a program. Each step needs to be considered and coded to to that.
If you want to improve your programming skill, then take some time to study CodeBase examples while referencing the MQL4 documentation, so that you can learn to define your steps and then code them to achieve your goal.
Fadhili Kwaka Kombo:
Hello Developers
Hello Developers
I'm stuck here, Can anyone help me with a function that works this Way?
"I want it to open just one position. If that position hits TP, then EA must open another trade in the same direction. But if trade hits SL, EA must open a trade in the other direction"
Hello , consult this example .
I am using an existing library for trading , but , you can tailor the system around it to your own trading functions with ease.
Everything is commented out .
If you hit an error check the location of the mqh
Cheers ☕️
#property copyright "Read the discussion" #property link "https://www.mql5.com/en/forum/440019" #property version "1.00" #property strict input double myLot=0.01;//the lot size input int myTp=300;//tp in points input int mySl=300;//sl in points input int myAttempts=12;//attempts to open input uint myDelay=300;//delay between attempts in ms input int myMagic=426;//magic number input string myComment="";//comment input int mySlippage=1000;//max slippage in points /* these are the basic inputs what you need now is to remember the trade and its direction. If the connection is lost and the ea restarts , to not lose track of it If mt4 crashes and reopens , to not lose track of it And monitor what it hit . That is it . I'm assuming you have your own trading functions so i will import mine as that is not the sticking point of your request */ #include <PlugAndPlay\trades\safeMarketTrade.mqh> //now lets declare an ea folder a systen bane and an extention string system_folder="TPSLSignal"; string system_name="";//the system name is empty because it forms live string extention=".txt"; //we would create a class here or a structure but lets keep it simple int myTicket=-1;//a ticket char myDirection=0;//a direction , -1 is SELL +1 is BUY 0 is nothing //and you need 3 things //1. to save these 2 things in a file void saveState(string folder,string filename,string extention_with_dot){ //you compose the location of the file string location=folder+"\\"+filename+extention_with_dot; //you delete the file if it exists if(FileIsExist(location)){FileDelete(location);} //you create the new file int f=FileOpen(location,FILE_WRITE|FILE_BIN); //if the file can be created if(f!=INVALID_HANDLE){ //you write the ticket FileWriteInteger(f,myTicket,INT_VALUE);//essentially write myTicket , which is an int so write an INT_VALUE //you write the direction FileWriteInteger(f,myDirection,CHAR_VALUE);// //and you close the file FileClose(f); } } //1 out of 3 down //2. you need to load these 2 things from a file void loadState(string folder,string filename,string extention_with_dot){ //same as above string location=folder+"\\"+filename+extention_with_dot; //but now if the file exists you don't delete it but you open it //first you reset your values though myTicket=-1; myDirection=0; //if file exists - load it read values if(FileIsExist(location)){ int f=FileOpen(location,FILE_READ|FILE_BIN); if(f!=INVALID_HANDLE){ //we want an integer , read an INT_VALUE , we know what we stored so we know what to expect myTicket=(int)FileReadInteger(f,INT_VALUE); myDirection=(char)FileReadInteger(f,CHAR_VALUE); FileClose(f); } } } //2 out of 3 and ... //3. monitor the open trade void monitorState(){ bool needs_save=false;//if true we save at the end //first question , do we have a ticket ? if(myTicket!=-1){ //we have a ticket lets check it , select it if(OrderSelect(myTicket,SELECT_BY_TICKET)){ //if the trade has closed if(OrderCloseTime()!=0){ //in tp if(OrderProfit()>0.0){ //open same direction ENUM_ORDER_TYPE direction=OP_BUY;//this is the direction to send to the order color order_color=clrAliceBlue; //if the trade was a sell , change to sell if(myDirection==-1){direction=OP_SELL;order_color=clrPink;} //this structure is in the include you can ignore it trade_result trade=SafeMarketTrade(direction,myLot,mySl,false,myTp,false,false,1.5,myAttempts,myDelay,mySlippage,myMagic,myComment,order_color); /* but as stated below what you must do is upon opening of the new trade save the ticket and the new direction you will adapt this to your own trading function */ if(trade.success){ //so if the trade opened in other words myTicket=trade.ticket; //and the myDirection does not change because its the same //and we light up the save indication needs_save=true; } } //in sl else{ //open opposite direction ENUM_ORDER_TYPE direction=OP_BUY;//this is the direction to send to the order color order_color=clrAliceBlue; //if the trade was a buy , change to sell because opposite if(myDirection==1){direction=OP_SELL;order_color=clrPink;} //this structure is in the include you can ignore it trade_result trade=SafeMarketTrade(direction,myLot,mySl,false,myTp,false,false,1.5,myAttempts,myDelay,mySlippage,myMagic,myComment,order_color); if(trade.success){ //so if the trade opened myTicket=trade.ticket; //and the myDirection flips if(myDirection==-1){myDirection=1;} else if(myDirection==1){myDirection=-1;} //and we light up the save indication needs_save=true; } } } } } //if we don't have a ticket in the first place else{ //random trade , i assume int r=MathRand(); //if its heads if(r>16000){ trade_result trade=SafeMarketTrade(OP_BUY,myLot,mySl,false,myTp,false,false,1.5,myAttempts,myDelay,mySlippage,myMagic,myComment,clrAliceBlue); /* the trade_result structure is from the include you can ignore it if you have your own functions to trade but what is important here , which you will need to plug in to your system is that if the trade succeeds you : -store the ticket -store the direction -save the state */ if(trade.success){ myTicket=trade.ticket; myDirection=1;//1 for buy needs_save=true;//light up the save indication for these to be stored } }else{ trade_result trade=SafeMarketTrade(OP_SELL,myLot,mySl,false,myTp,false,false,1.5,myAttempts,myDelay,mySlippage,myMagic,myComment,clrPink); if(trade.success){ myTicket=trade.ticket; myDirection=-1;//-1 for sell needs_save=true;//light up the save indication for these to be stored } } }//if we dont have a ticket in the first place ends here //if the save indication is on if(needs_save){ saveState(system_folder,system_name,extention); } } //these are our functions , now lets connect the system to the meta trader int OnInit() { /* on load what do we do ? first we compose the name of the system */ system_name=_Symbol+IntegerToString(_Period); //which is the name of the traded symbol and the timeframe //then , we try to load . //if nothing exists the system resets anyway //if something exists the system continues from where it left loadState(system_folder,system_name,extention); //done , on to the tick function return(INIT_SUCCEEDED); } void OnTick() { //what should we do here ? //we call the monitor monitorState(); //that is it . } void OnDeinit(const int reason) { }
Files:
safeMarketTrade.mqh
15 kb
Fadhili Kwaka Kombo:
Hello Developers
Hello Developers
I'm stuck here, Can anyone help me with a function that works this Way?
"I want it to open just one position. If that position hits TP, then EA must open another trade in the same direction. But if trade hits SL, EA must open a trade in the other direction"
Topics concerning MT4 and MQL4 have their own section.
In future please post in the correct section.
I have moved your topic to the MQL4 and Metatrader 4 section.
You can find someone who will code this for you – since it’s like a normal strategy.
Or you can try do code it yourself – one idea is to place a trade with SL and TP and add pending orders (buylimit and selllimit) on its SL/TP levels. So, when TP is hit on Buy, buylimit will be automatically triggered.
Of course, you need to later remove remained pending order and open new pending orders on this new trades’ sl/tp. And so on
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