My ultimate goal is to be able to use multiple MT4/5 platforms to feed a custom application written in C#.
At the moment, black box doesn't do anything. I am just working on the communication.
I have the Client.cs and Server.cs successfully talking to each other. When I output PipeServer to a .dll and attempt to load in MT5, I get the error, "Cannot find 'SendString' in 'PipeServer.dll'. I have tried everything I can think of. I've read numerous online articles and am still going around in circles.
C# code for PipeServer: (don't mind all the comments. It just makes it easier to switch back and forth between dll and exe)
C# code for the PipeClient:
MQL5 code for EA/script:
Testing C#<--->C# gives a throughput of over 165,000 ticks/second without any performance tweaking. This is one of the main reasons I want to use a DLL solution. Also, developing in C# is much less restrictive. I do understand that there are ways of using native MQL5 code but that is not the path I am pursuing.
So my overall question is how do I correctly call my SendString(string someParameter)?
It doesn't matter at the moment which data type I send. It can be an int, double, or string. I just want to get the functionality working.
Any help or suggestions would be greatly appreciated so I can stop
Thanks,
Jason
Inserted Code
MT5
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|
\ /
MT5--->black box C# program<---MT5
/ \
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MT5 At the moment, black box doesn't do anything. I am just working on the communication.
I have the Client.cs and Server.cs successfully talking to each other. When I output PipeServer to a .dll and attempt to load in MT5, I get the error, "Cannot find 'SendString' in 'PipeServer.dll'. I have tried everything I can think of. I've read numerous online articles and am still going around in circles.
C# code for PipeServer: (don't mind all the comments. It just makes it easier to switch back and forth between dll and exe)
Inserted Code
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO.Pipes;
using System.IO;
using System.Diagnostics;
using System.Runtime.InteropServices;
using RGiesecke.DllExport;
namespace PipeServer
{
public class Server
{
//static void Main(string[] args)
[DllExport("SendString", CallingConvention = CallingConvention.StdCall)]
public static void SendString(string args)
{
using (NamedPipeServerStream pipeServer = new NamedPipeServerStream("testpipe",
PipeDirection.InOut))
{
//Console.WriteLine("NamedPipeServerStream object created.");
// Wait for a client to connect
//Console.Write("Waiting for client connection...");
pipeServer.WaitForConnection();
//Console.WriteLine("Client connected.");
//bool Disconnect = false;
try
{
// Read user input and send that to the client process.
using (StreamWriter sw = new StreamWriter(pipeServer))
{
//string temp;
//while (pipeServer.IsConnected && !Disconnect)
//{
sw.AutoFlush = true;
//Console.Write("Enter text: ");
//temp = Console.ReadLine();
//if (temp == "exit") Disconnect = true;
//Disconnect = true;
sw.WriteLine(args);
//}
}
}
// Catch the IOException that is raised if the pipe is
// broken or disconnected.
catch (IOException e)
{
Console.WriteLine("ERROR: {0}", e.Message);
}
}
}
}
} C# code for the PipeClient:
Inserted Code
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO.Pipes;
using System.IO;
using System.Diagnostics;
namespace PipeClient
{
public class Client
{
static void Main(string[] args)
{
using (NamedPipeClientStream pipeClient = new NamedPipeClientStream(".",
"testpipe",
PipeDirection.InOut))
{
// Connect to the pipe or wait until the pipe is available.
Console.Write("Attempting to connect to pipe...");
pipeClient.Connect();
Console.WriteLine("Connected to pipe.");
Console.WriteLine("There are currently {0} pipe server instances open.",
pipeClient.NumberOfServerInstances);
while (pipeClient.IsConnected)
{
using (StreamReader sr = new StreamReader(pipeClient))
{
// Display the read text to the console
string temp;
while ((temp = sr.ReadLine()) != null)
{
Console.WriteLine("Received from server: {0}", temp);
}
}
}
}
Console.Write("Press Enter to continue...");
Console.ReadLine();
}
}
} MQL5 code for EA/script:
Inserted Code
//+------------------------------------------------------------------+
//| TestPipeServer.mq5 |
//| Copyright, NONE |
//| |
//+------------------------------------------------------------------+
//#property script_show_inputs
#import "PipeServer.dll"
static void SendString(string args);
#import
//+------------------------------------------------------------------+
//| Script program start function |
//+------------------------------------------------------------------+
void OnStart()
{
Print("test loaded correctly");
SendString("test"); // if I comment out this function call, the script works
}
//+------------------------------------------------------------------+ Testing C#<--->C# gives a throughput of over 165,000 ticks/second without any performance tweaking. This is one of the main reasons I want to use a DLL solution. Also, developing in C# is much less restrictive. I do understand that there are ways of using native MQL5 code but that is not the path I am pursuing.
So my overall question is how do I correctly call my SendString(string someParameter)?
It doesn't matter at the moment which data type I send. It can be an int, double, or string. I just want to get the functionality working.
Any help or suggestions would be greatly appreciated so I can stop
Thanks,
Jason
