How to use a service that works like a script? - Expert Advisors and Automated Trading

Alexey Viktorov 2022.03.01 12:03 #13951

Artyom Trishkin #:

Hmmm...

At some point in time the function call is blocked by the subsystem. Maybe you shouldn't wait, but just quit until the next login?

The service only logs in when the terminal is started, or when the service itself is started. Consequently, if you exit, the next call will be at restart of one of the two... but both are done manually...

Artyom Trishkin 2022.03.01 12:09 #13952

Alexey Viktorov #:

The service only logs in when the terminal is started, or when the service itself is started. Consequently, if you exit, the next login will be when you restart one of the two... but both are done manually...

Got it. I.e. is the service running in a loop? Or in a timer?

Alexey Viktorov 2022.03.01 13:18 #13953

Artyom Trishkin #:

Got it. I mean, does the service work in a loop? Or in a timer?

The service works like a script. The only difference is that the service starts with the start of MT, while the script, you know... Accordingly, if something doesn't work, it won't work until MT is restarted. It turns out that it is desirable to pause and repeat... I think so.

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Artyom Trishkin 2022.03.01 13:25 #13954

Alexey Viktorov #:

The service works like a script. The only difference is that the service starts when the MT starts, while the script, you know... So, if something doesn't work, it won't work until the MT is restarted. It turns out that it is desirable to pause and repeat ... I think so.

You didn't understand my question. Or maybe I'm not making myself clear ¯\_(ツ)_/¯

Alexey Viktorov 2022.03.01 13:27 #13955

Artyom Trishkin #:

You didn't understand my question. Or maybe I'm not making myself clear ¯\_(ツ)_/¯

One of the two. But the service does not work in the loop and does not work in the timer.

Artyom Trishkin 2022.03.01 16:13 #13956

Alexey Viktorov #:

One of the two. But the service doesn't work in a loop and doesn't work in a timer.

Are you saying that it only triggers once when you start the terminal? No. How then?

Alexey Viktorov 2022.03.01 17:32 #13957

Artyom Trishkin #:

Are you saying that it only triggers once when you start the terminal? No. How then?

Until I figured it out or they made it possible to disable showing of trading history on a chart, I have been using this service

//+------------------------------------------------------------------+
//| Service program start function                                   |
//+------------------------------------------------------------------+
void OnStart()
 {
  long currChart = ChartNext(0);
  while(currChart >= 0)
   {
    ObjectsDeleteAll(currChart, "autotrade");
    currChart = ChartNext(currChart);
   }
 }
//+------------------------------------------------------------------+

I dare say it works successfully. I'm too lazy to search for it. It's much easier to repeat it.

This service

//+------------------------------------------------------------------+
//| Service program start function                                   |
//+------------------------------------------------------------------+
void OnStart()
 {
  Print("Запуск произведён успешно");
 }
//+------------------------------------------------------------------+

It prints once at terminal startup. So it is easy to check.

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Artyom Trishkin 2022.03.01 17:52 #13958

Alexey Viktorov #:

Until I figured it out or they made it possible to disable the display of trading history on the chart, I used the following service

I dare say it works successfully. I'm too lazy to find where I wrote about it before. It's much easier to repeat it.

This service

It prints once when you start the terminal. So it's easy to check.

Are you saying that service prints ONLY once on terminal start? Like a script? Only the script is run manually or programmatically, and the service is run on terminal startup. Is it like that? And, are you saying that the service no longer works? That is, it is triggered only ONE time?

Sergey Li 2022.03.01 17:57 #13959

JRandomTrader #:

For example, like this.

Macros are global.

can you explain where you need to write them?

in the class or in the advisor

Alexey Viktorov 2022.03.01 18:23 #13960

Artyom Trishkin #:

Are you saying that the service is executed ONLY once when you start the terminal? Like the script? Only the script is run manually or programmatically, and the service is run when the terminal is booted. Is it like that? And, are you saying that the service no longer works? That is, it works only ONE time?

Artem, well why to me to prove something to you? Write one line and check.

Questions from Beginners MQL5 MT5 MetaTrader 5 - page 1396