metatrader4

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 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

I am trying to see whether it is feasible to build a custom indicator for MetaTrader that can make asynchronous internet requests, in order to post data to a server with a PHP interface. These requests might take some time for the webserver to process, so I am worried that they will block the indicator from continuously updating new tick data if they are performed in a synchronous manner. Are there any asynchronous libraries available for MT4? Yes, there are MT4 can directly use ready-made bindings for great platform-to-platform & process-to-process messaging library, be it ZeroMQ or nanomsg .

I'm completely stuck . I'm testing MetaTrader API and getting next error when tries to run a method in the Immediate Window of VS 2010: A first chance exception of type 'System.Threading.ThreadAbortException' occurred in mscorlib.dll A first chance exception of type 'System.Threading.ThreadAbortException' occurred in System.Runtime.Remoting.dll Evaluation requires a thread to run temporarily. Use the Watch window to perform the evaluation. What does it mean? Can it happens because of runtime versions difference (api 2.0, app 4.0)? I believe the method you are calling through the Immediate