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Named Pipes for MT4

  • #41
  • May 25, 2011 2:12pm May 25, 2011 2:12pm
Through guess work I got this working.

Save the file into your scripts
Go to options and change the settings in there.
Once it is working just switch off some of these options.
  • #42
  • Jul 3, 2011 9:01am Jul 3, 2011 9:01am
Jagui you wrote back ago in relation to communicating mt4 with excel

"I'm doing these things using a mysql backend. You can find a mysql client library for mt4 that is easy to use. I also use an infinite loop in a .mql4 script, I didn't find anything better for the moment.

The mysql solution is very stable, scalable, and network-enabled. However, it is not the fastest way."

Is there any way possible that you share what you have done about your infinite loop script and how you communicate with mt4 from excel?. I want to place orders from excel using mt4
Thanks in advance
  • #43
  • Jul 3, 2011 9:25am Jul 3, 2011 9:25am
Dean You wrote in regards to a post from fxqf "I can't get the PipeServer.mq4 script to run in MT4"

"Through guess work I got this working
Save the file into your scripts
Go to options and change the settings in there.
Once it is working just switch off some of these options"

Sorry may be is a dumb question but you wrote go to options and change the settings in there and then switch off some options. Can you explaing me what options are you talking about and which options should I switch on/off.

Thanks in advance
  • #44
  • Jul 3, 2011 10:08am Jul 3, 2011 10:08am
sangmane/jagui


My question to you is: Have you done anything related to communicating excel to mt4 not only once but when a spreadsheet cell changes dinamically so you could place an order in mt4?

Is it possible to communicate back information from Mt4 to excel when an order was placed, quote etc??

Jagui on this thread mentioned that he uses an infinite loop script.I dont know if he has been able to acomplish what I am asking you.

Thanks in advance for your help
  • #45
  • Jul 4, 2011 3:13pm Jul 4, 2011 3:13pm
Quoting arrautxa
Dean You wrote in regards to a post from fxqf "I can't get the PipeServer.mq4 script to run in MT4"

"Through guess work I got this working
Save the file into your scripts
Go to options and change the settings in there.
Once it is working just switch off some of these options"

Sorry may be is a dumb question but you wrote go to options and change the settings in there and then switch off some options. Can you explaing me what options are you talking about and which options should I switch on/off.

Thanks in advance
As I said it was a dumb question.Thanks anyway I got it working.
  • #46
  • Sep 21, 2011 9:18am Sep 21, 2011 9:18am
I was looking for something and came across this:
mt4dll providing IPC functions by Send() and Receive

I thought it might fit to the thread.
http://code.google.com/p/sevenever/s...k/misc/mt4dll/

Did not test it myself.
__Thanks__ MJ
  • #47
  • Jan 27, 2012 8:03pm Jan 27, 2012 8:03pm
I'm trying change sangmane PipeServer to a listening 2 NamedPipes, but it doesn't working ...
Someone can Help me.
I'm attached my mq4 file
Thank's a lot
Attached File(s)
File Type: mq4 PipeServer_MultiPipe_v1.0.mq4   4 KB | 914 downloads
  • #48
  • Jan 28, 2012 12:28pm Jan 28, 2012 12:28pm
Try to do only one Named Pipe Server. In a message from the Named Pipe Client at the beginning of message set number + character break+ rest of message. In the Named Pipe Server looking for character break, and you share the message string. Thanks to this you get number of Named Pipe Client + message
  • #49
  • Jan 28, 2012 4:29pm Jan 28, 2012 4:29pm
Thanks you for your answer. My server is running like u said, but I need split data for each symbol. My code above working with u send by First namedpipe "test1" then send "test2", every time u need do this, u can't send msg for same namedpipe.
  • #50
  • Feb 11, 2012 12:12am Feb 11, 2012 12:12am
4xCoder

Thanks, your pipe-handling code is just great! But there is one problem, could you please help me with it?.. I'm trying to write in pipe Russian letters with CopyToBuffer/WriteFile functions, and all I get is "?" characters. How should I modify your code to make it work with Russian/Unicode characters?

Thanks beforehand!
  • #51
  • Jun 13, 2012 10:08pm Jun 13, 2012 10:08pm
Quoting sangmane
hi sf,

here is an example on sending data from excel to metatrader via named pipe. run pipeserver script on mt4, open the attached excel file, enable macro. type your message, press enter and click [Send] button. your message will be instantly printed on mt4 chart. in real application, you can change pipeserver.mq4 code to parse the message from excel to do some trading related task.
Dear Sangmane,
I tried to install pipeserver script but I doesn't work right away. Do you have to recompile it ?

Thanks
  • #52
  • Jan 31, 2013 5:47am Jan 31, 2013 5:47am
Hi,
I found this code(Indicator).
It will great if some one can convert the mapclient(script) to indicator, and we can compare tick on past.
Attached File(s)
File Type: mq4 TickSmoother_v1.1.mq4   7 KB | 747 downloads
  • #53
  • Mar 31, 2013 8:59am Mar 31, 2013 8:59am
bump
excel to mt4 both ways
ipc = interprocess communication
  • #54
  • Feb 9, 2014 7:52am Feb 9, 2014 7:52am
Quoting Dean F
Through guess work I got this working. Save the file into your scripts Go to options and change the settings in there. Once it is working just switch off some of these options.
I have successfully run the script on MT4, but when I click the button in Excel, nothing happen! Can you explain more in details? Thank in advance.
  • #55
  • Oct 9, 2014 9:15am Oct 9, 2014 9:15am
Update for pipeserver.mq4, to be used with pipeclient.xls in post http://www.forexfactory.com/showthre...36#post4135336
Attached File(s)
File Type: mq4 PipeServer_Ansi.mq4   3 KB | 1,202 downloads
  • #56
  • Oct 9, 2014 9:27am Oct 9, 2014 9:27am
Thanks for that Sangmane - will try it out tonight! Mark.
  • #57
  • May 19, 2015 1:30am May 19, 2015 1:30am
Hi,
I've been attempting to get named pipes working for some time now, and consider myself an aspiring amateur MQL4 programmer. In the past, people have developed scripts in order for MT4 EAs to communicate with each other either in the same, or other local terminals. However, after 600+ builds of MT4 were released, these scripts became outdated and no matter what I have tried, I can't seem to get them to work on newer versions of MT4 (most likely cause of this being my lack of knowledge of C)... I have tried updating the code I have to uchar arrays (similar to Sangmane's examples), but this still hasn't fixed my problem.

I am aware that various other threads on Forex Factory contain ways in which to make solely TWO terminals/EAs talk to eachother, (and I have successfully made Sangame's code perform this on newer builds), however, to make things more clear what I am trying to achieve here is essentially a multi-EA basket trader; where there will be 15-20 currency pair client EAs, and one main 'control' EA which will interpret and dispatch the basket orders. For example, a EURUSD client makes a buy order, notifies the main control EA of its actions, which in turn sends out order commands (in the form of a string) to other connected clients; e.g. "USDJPY Sell", "GBPUSD Buy", etc.

I enclose the (outdated) scripts that I am currently having trouble with, and I thank any more experienced than me programmers in advance, for your time.
Attached File(s)
File Type: zip mt4namedpipes.zip   8 KB | 747 downloads
  • #58
  • Edited 3:09am May 19, 2015 2:59am | Edited 3:09am
Quoting ytrader07
I am trying to achieve here is essentially a multi-EA basket trader; where there will be 15-20 currency pair client EAs, and one main 'control' EA which will interpret and dispatch the basket orders. For example, a EURUSD client makes a buy order, notifies the main control EA of its actions, which in turn sends out order commands (in the form of a string) to other connected clients
Are you possibly over-complicating things here?
With a master/slave configuration the master can perform buy/sell operations itself and the slave(s) function solely as signals.
So, there is the chart event feature now, so that any indicator/ea can trigger a custom chart event that then would be noticed by the master.
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  • #59
  • May 19, 2015 6:17am May 19, 2015 6:17am
Quoting rockit
{quote} Are you possibly over-complicating things here? With a master/slave configuration the master can perform buy/sell operations itself and the slave(s) function solely as signals. So, there is the chart event feature now, so that any indicator/ea can trigger a custom chart event that then would be noticed by the master.
Rockit, thanks for your reply!
Ideally, orders for a given currency pair need to opened by their host chart (e.g. a EURUSD order will need to opened and monitored by a EURUSD chart, etc.). This is due to the fact that the best timing for as and when an order needs to be closed is determined by each slave EA individually, and hence i believe the neatest way of doing this would be to send messages to the slave charts/EAs individually... What are your thoughts on this?

Thanks,
ytrader
  • #60
  • May 19, 2015 8:07am May 19, 2015 8:07am
Quoting ytrader07
This is due to the fact that the best timing for as and when an order needs to be closed is determined by each slave EA individually, and hence i believe the neatest way of doing this would be to send messages to the slave charts/EAs individually...
Ok, you may consider the use of EventChartCustom function to notify all EAs and transmit parameters.
In your case this would mean that the EA that wants to act would notify the master EA, and the master EA would notify all other EAs to act accordingly.
Look at the function and example here: http://docs.mql4.com/eventfunctions/eventchartcustom
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