Questions from Beginners MQL5 MT5 MetaTrader 5 - page 1508

[Yuriy Bykov]

Hello!

Try to create a separate object for each button and add it to the dialogue after creation. Otherwise the dialogue understands that it has only one button inside.

for(int i=0; i<SymbolsTotal(true);i++){ 
   btns[i].Create(0,"btn"+(string) i,0,0,0+BTN_HEIGHT+btn_left,0,0+BTN_WIDTH*btn_line);
   ExtDialog.Add(btns[i]);
}

[Igor168]

Yuriy Bykov #:

Hello!

Try to create a separate object for each button and add it to the dialogue after creation. Otherwise the dialogue understands that it has only one button inside.

I tried it, it throws a critical error "Array out of range"

[Yuriy Bykov]

We should first make this array of objects, and then use its elements in a loop, calling the Create method for them. I can't write an example right now

[Igor168]

Yuriy Bykov #:
We should first make this array of objects, and then use its elements in a loop, calling the Create method for them. I can't write an example right now

Got it, thanks!

[Yuriy Bykov]

Somehow, I guess:

// Глобальный массив
CButton btns[];

...

int total = SymbolsTotal(true);

ArrayResize(btns, total);

for(int i=0; i<total;i++){ 
   btns[i].Create(0,"btn"+(string) i,0,0,0+BTN_HEIGHT+btn_left,0,0+BTN_WIDTH*btn_line);
   ExtDialog.Add(btns[i]);
}

Usually create your own dialogue class by inheriting from CAppDialog. Then btns can be a field of this class. Otherwise you should make it a global variable.

Check also that you have correctly calculated the coordinates of the next button placement - the i index should somehow participate in their calculation.

[Lucum]

This is probably a stupid question, but I am a newbie and I haven't figured it all out yet. can you please tell me how to limit the time an EA can work? I want to give the EA for 1-2 weeks for a test. How to write it in the code of the Expert Advisor? It is necessary that after X time it should give a message EA working time has expired contact the author or something like that.

[Igor168]

Yuriy Bykov global variable.

Check also that you have correctly calculated the coordinates of the next button placement - the i index should somehow participate in their calculation.

Everything works! Thank you very much!

[Aleksandr Slavskii]

Lucum #:
This is probably a stupid question, but I am a newbie and I haven't figured it all out yet. can you please tell me how to limit the time an EA can work? I want to give the EA for 1-2 weeks for a test. How to write it in the code of the Expert Advisor? It is necessary that after X amount of time it should give a message EA working time has expired contact the author or something like that.

That's funny, but okay.

The easiest option is to add this code to OnTick().

   if(TimeLocal() >= D'2024.03.15 00:00:00')
     {
      MessageBox("Без денег, торговать не буду.\nДай денег.\nПобольше.");
      ExpertRemove();
     }

[Igor168]

Is there any possibility to forbid to move the panel created with the help of <Controls\Dialog.mqh> library?

[giga gogichashvili]

Hello Friends. I wonder if you have used real time real account expert bitlite. It is very good in testing. And if you know a similar expert at a lower price, thank you