mql4

I would need to get data from inside a JSON Array. I use a call to WebRequest() function to get an order list from my db, thru a nodejs(api) and then I got the following JSON-data format e.g: [{"orderid": 123556, "ordertype": 0, "ordercurrency": "EURUSD", "orderdt": "2016-12-03 03:00:00" }, {"orderid": 123457, "ordertype": 0, "ordercurrency": "GBPUSD", "orderdt": "2016-12-03 03:15:00" } ] Any idea how to transform it to a normal array in order to manage data? Thank you. /Koul JSON Serialization and Deserialization library works pretty well. You can include it and finish your task within a

I'm trying to ADD a stop loss to my open market orders in MetaTrader 4 when a position gets 100 pips "to the good" which is to be equal to the Order Open Price; OrderStopLoss() == OrderOpenPrice() But this isn't happening. I've added Print() & GetLastError() functions and nothing is coming up in the journal, so it must be something in my coding - but cannot see what would be wrong. OK this is what I have so far, one for loop for the buy, one for the sell. I've also Normalized the "doubles" as I have been advised to do & have also declared the BuyMod & SellMod to "true" at the very top. This

I have a task of migrating a C# market strategy to MetaTrader. Is there any way to automate that job? (For example, is it possible to parse C# into it's AST, then make the translation?) Does MetaTrader accept other languages by any means? Approach the task Bottom-Up -- Architecture-wise Yes, you can simplify the trouble and make MT4 become a Node, which is immediately connected peer-to-peer to your current C# Market Strategy. This alowed me to operate a cluster-based computing communicating massively parallel with a crowd of MT4 nodes. MT4 can become anEventFEED -er Node via a more complex "

How can I read JSON from a url in MQL5 ? For example this simple JSON from: https://api.myjson.com/bins/56z28 { "employees": [ { "firstName": "John", "lastName": "Doe" }, { "firstName": "Anna", "lastName": "Smith" }, { "firstName": "Peter", "lastName": "Jones" } ] } user3666197 Simple, but restrictions apply. MetaTrader Terminal 5 is a code-execution environment, that can communicate with an external URL target (if explicitly configured as a permitted URL) via both HTTP/HTTPS protocols over port 80/443 respectively. string aCookieHOLDER = NULL, aHttpHEADERs; char postBYTEs[], replBYTEs[]; int

I would like to create a stoploss order that will be placed above the high of the previous order's initiation bar in case this is a Sell order OR below the low of the previous order's initiation bar in case this is a Buy order. Here is a picture to illustrate the issue ( the example depicts a sell order case ): Any idea how to do that? The code below works fine if I use stoploss that is fixed. If I replace the stoploss with variables that are based on High or Low no orders are fired. Here is my code: //| Expert initialization function | //+------------------------------------------------------

On my MQL4 Code I need to execute an External url/link in order to update a table, I have Added the URL in the Allowed URL List Option. However I got the following error : Any Idea how to solve this problem ? Thanks . PS: I am using MT4 Build 840 This warning reminds you to set ( check [ x ] ref. Fig1 below ) permit(s) to do so in your MT4 Terminal Tools -> Options ( Ctrl + O ) Both the [Allow automated trading (Expert advisor per se )] and [ Allow WebRequest for listed URL: / Add a properly formatted link...] must be checked [ x ] as Allow... For any further problem resolution, the MCVE

I have following function __declspec(dllexport) wchar_t* __stdcall __getJson(wchar_t * listN){ setlocale(LC_ALL, ""); //function logic wstring ant = utf8_to_wstring(result); const WCHAR* constRes = ant.c_str(); WCHAR* tempObj=new WCHAR[ant.length()]; wcscpy(tempObj, constRes); thread Thread([tempObj]{ Sleep(1000); delete[] tempObj; }); Thread.detach(); return tempObj; } This DLL returns wchar_t* to MetaTrader4. I tried many ways to return correct value and avoid memory leaks such as set return type const wchar_t* , creating my own class with destructor with delete[] in. But all this attempts