Questions from Beginners MQL5 MT5 MetaTrader 5 - page 381

[Vladimir Karputov]

Vladimir Pastushak:
So in fact the second option is better?

Yes. In the second variant, you first check if the function worked correctly, and if everything is OK, you start working with the variable where the result of the function has been placed.

[kashi_ann]

Karputov Vladimir:
About voting principles and signal weights: MQL5 Wizard: New version.

This is just what you need, thank you.

[Renat Akhtyamov]

Good afternoon, MQL5 specialists. Could you please advise how to open and close a standard order in the 5th one? //I just moved from the 4 series.

Can I do it without external libraries?

I can't find anything in the documentation about closing.

I understand there are two ways to open an order, but how would that affect testing?

[Vladimir Karputov]

new-rena:

Good afternoon, MQL5 specialists. Please advise how to open and close a standard order in the 5. //I just moved from the 4 series.

Can I do it without external libraries?

I can't find anything in the documentation about closing.

I understand there are two ways to open an order, but how would that affect testing?

//--- В шапке файла подключаем класс CTrade - класс 
//--- для упрощенного доступа к торговым функциям
#include <Trade\Trade.mqh>
//--- объявляем переменную
CTrade            m_trade;

//--- открываем, закрываем...
//--- используя методы класса CTrade...

CTrade. And of course at each step we have to check what was returned by the method.

[Renat Akhtyamov]

Karputov Vladimir:
CTrade. And of course at each step we have to check what the method has returned.

Wow what a chip) Thank you!

So opening an order asynchronously is another story and not part of CTrade?

[Vladimir Karputov]

new-rena:
Wow what a chip) Thank you!

Welcome to the A!

[Renat Akhtyamov]

Karputov Vladimir:
Welcome to the Five!

aha. if i open an order asynchronously, will that be tested? and it looks like CTrade is only for synchronous operation? // if you're going to write on the 5-point, then you should use something which is not in the 4-point)

// unsuccessfully scratched out the multicurrency indicator..., wasted half a day

[Vladimir Karputov]

new-rena:

aha. if i open an order asynchronously, will this be tested? and it looks like CTrade is only for synchronous operation?

// with a bit of difficulty scratched out a multi-currency indicator...

Here, for asynchronous sending SetAsyncMode. And more articles on the word "asynchronous"

[Vitalie Postolache]

new-rena:

Good afternoon, MQL5 specialists. Could you please advise how to open and close a standard order in the 5th one? //I just moved from the 4 series.

Can I do it without external libraries?

I can't find anything in documentation about closing.

As far as I understand, the order can be opened in two ways, but how would that affect testing?

If we do not have any external libraries, there is PositionClose.

Also, we can open a position with the same volume in the opposite direction and it will result in a close.

[Renat Akhtyamov]

Vitalie Postolache:

If not external - there is PositionClose

You can also open a position with the same volume in the opposite direction, which will result in a close.

I thought the code would be five pages long). thanks!