Questions from Beginners MQL5 MT5 MetaTrader 5 - page 101

[Сергей Криушин]

Yedelkin:

These messages appear, for example, when one function is declared inside another. See if there is anything like this in the code:

No, there's nothing like that. Apparently they are just antagonists, and I wanted to attach a peseptron

[Yedelkin]

chipo:  There's no such thing. Apparently they're just antagonists, and I wanted to strap on a pespertron.

Well you give examples of those lines where errors occur, and a couple of lines from top to bottom.

[Сергей Криушин]

Yedelkin:
Well you give examples of those lines where errors occur, and a couple of top-bottom lines.

Yedelkin:
Well, give me some examples of those lines where errors occur, and a couple of lines from top to bottom.

I am an inexperienced beginner and I dock EAs, I don't know how well I do it, but they all work differently and differently from sources and I have failed with this one, though the code is very simple and this may be the problem )))) I want to get everything too easy

//--- if it is time to trade
if((mqldt.hour==TradeTime) && (cantrade))
{
//--- check condition to open short trade (sell)
if(Open[t1]>(Open[t2]+delta*_Point))
{
//---open Short position
OpenShort(lot,10, "EUR/USD 20 pips expert (Short)",1234);
//--- switch the flag (prohibit trade) to not open more positions until the next day
cantrade=false;
//--- exit
return;
}
//--- check condition for opening a long position (buy)
if((Open[t1]+delta*_Point)<Open[t2])
{
//---open long position
OpenLong(lot,10, "EUR/USD 20 pips expert (Long)",1234);
//--- switch the flag (prohibit trade) to not open more positions until the next day
cantrade=false;
//--- exit
return;

Here is where I wanted to add Expert OnTick function from Combo Righd at least some of it, but even some of it does not compile

bool Supervisor(double & Signal) {
double BasicSig=0;
if(!basicTradingSystem(BasicSig))return(false);
Signal=0;
if(pass==4){
if(!Perceptron(output1,sh11,sh12,sh13,sh14,sh15,w11,w12,w13,w14) ||
!Perceptron(output2,sh21,sh22,sh23,sh24,sh25,w21,w22,w23,w24) ||
!Perceptron(output3,sh31,sh32,sh33,sh34,sh35,w31,w32,w33,w34)
)return(false);
if(output3>0){
if(output2>0){
sl=sl3;
tp=tp3;
Signal=1;
return(true);
}

[Yedelkin]

chipo: 

Well, look, it all works out the way I thought it would. You are trying to insert another function inside one function - this one:

bool Supervisor(double & Signal)....

[Сергей Криушин]

Yedelkin:

Well, look, it all works out the way I thought it would. You are trying to insert another function inside one function - this one:

Thank you, sorry for taking time, I thought the previous function-formula worked out and closed, it's the turn of the second function, but it's inside

[Yedelkin]

chipo: Thank you, sorry for taking up my time, I thought the previous function-formula worked out and closed, but it turned out to be the second one.

Feel free to ask! The more questions about the language, the more interesting it is.

[kedr275]

Can mql be used to get and store the opening price of an order at the moment (before deciding to buy) of a request ?

[Yedelkin]

kedr275: Could you please tell me if it is possible with mql to receive and save the opening price of an order at the moment (before deciding to buy) of a request ?

The question is not quite clear yet. In mql5 not orders are opened but positions. Are you interested in the opening price of a position?

[kedr275]

Yedelkin:
The question is not quite clear yet. In mql5, we open positions, not orders. Are you interested in the price of opening a position?

Yes, I am interested in the position, I will formulate the question differently, is it possible to make a decision to open a position based on the price, i.e. we request the price first, make a decision, execute.

[Anatoli Kazharski]

kedr275:

Yes, I am interested in the position, I will formulate the question differently, is it possible to make a decision to open a position based on the price, i.e. we request the price first, make a decision, execute.

Yes, we can. It is harder to think of something that cannot be done. ))