Can a code be written in an EA to add or delete an indicator to the trading platform???

Dave

I have a big trouble on management of orders....
My simple EA entry at X:59......but i have multiple entry on the same cross. My question: It's possible to check orders time entry and to compare with new order?
I want entry at x:59 only with 1 order for cross....

Someone can help me?

This is my solution, I hope this can help someone......

//+------------------------------------------------------------------+
//| Signal Begin(Entry) |
//+------------------------------------------------------------------+

if (Buy1_1 < Buy1_2 && Minute()>58 && check_buy==0) Order = SIGNAL_BUY;
if (Sell1_1 > Sell1_2 && Minute()>58 && check_sell==0) Order = SIGNAL_SELL;
if (Minute()==00) {check_buy=0;}
if (Minute()==00) {check_sell=0;}

//+------------------------------------------------------------------+
//| Signal End |
//+------------------------------------------------------------------+

//Buy
if (Order == SIGNAL_BUY && ((EachTickMode && !TickCheck) || (!EachTickMode && (Bars != BarCount)))) {
//if(!IsTrade) {
//Check free margin
if (AccountFreeMargin() < (1000 * Lots)) {
Print("We have no money. Free Margin = ", AccountFreeMargin());
return(0);
}

if (StopLossMode) StopLossLevel = Ask - StopLoss * Point; else StopLossLevel = 0.0;
if (TakeProfitMode) TakeProfitLevel = Ask + TakeProfit * Point; else TakeProfitLevel = 0.0;
check_buy=1;
Ticket = OrderSend(Symbol(), OP_BUY, Lots, Ask, Slippage, StopLossLevel, TakeProfitLevel, "Buy %W(#" + Magic_Number + ")", Magic_Number, 0, DodgerBlue);
if(Ticket > 0) {
if (OrderSelect(Ticket, SELECT_BY_TICKET, MODE_TRADES)) {
Print("BUY order opened : ", OrderOpenPrice());
if (SignalMail) SendMail("[Signal Alert]", "[" + Symbol() + "] " + DoubleToStr(Ask, Digits) + " Open Buy");
} else {
Print("Error opening BUY order : ", GetLastError());
}
}
if (EachTickMode) TickCheck = True;
if (!EachTickMode) BarCount = Bars;
return(0);
// }
}

//Sell
if (Order == SIGNAL_SELL && ((EachTickMode && !TickCheck) || (!EachTickMode && (Bars != BarCount)))) {
//if(!IsTrade) {
//Check free margin
if (AccountFreeMargin() < (1000 * Lots)) {
Print("We have no money. Free Margin = ", AccountFreeMargin());
return(0);
}

if (StopLossMode) StopLossLevel = Bid + StopLoss * Point; else StopLossLevel = 0.0;
if (TakeProfitMode) TakeProfitLevel = Bid - TakeProfit * Point; else TakeProfitLevel = 0.0;
check_sell=1;
Ticket = OrderSend(Symbol(), OP_SELL, Lots, Bid, Slippage, StopLossLevel, TakeProfitLevel, "Sell %W(#" + Magic_Number + ")", Magic_Number, 0, DeepPink);
if(Ticket > 0) {
if (OrderSelect(Ticket, SELECT_BY_TICKET, MODE_TRADES)) {
Print("SELL order opened : ", OrderOpenPrice());
if (SignalMail) SendMail("[Signal Alert]", "[" + Symbol() + "] " + DoubleToStr(Bid, Digits) + " Open Sell");
} else {
Print("Error opening SELL order : ", GetLastError());
}
}
if (EachTickMode) TickCheck = True;
if (!EachTickMode) BarCount = Bars;
return(0);
//}
}

if (!EachTickMode) BarCount = Bars;

return(0);
}
//+------------------------------------------------------------------+

I can't tell what causes check_buy to be True.
To limit to one order open, you can use, before entry:
if (OrdersTotal()==0)

Big Be

WHEN do you want to use a STATIC variable - what problems can it solve?

WHEN do you want to put something in the INIT() section - what problems does it solve?

Big Be

not sure if this has been asked befor, but is there a way to draw a line at the current time +1 hr befor and after at a certain price in an EA?

So, an answer to this, is that instead of, or in addition to, the explanations in the MQ4 documentation?

I'm currently making an EA that only has 1 open trade at a time.
I have alot of variables to keep track of what is happening during this trade.
If I had more open trades at the same time I thought I could use arrays for these variables with the ticket number as key. But as I understand it the keys has to be 0,1,2,3 etc right? So this wouldn't be possible.

Instead of that I could have a multidimension array like this, I hope you understand my javascript/php like description.
barsSinceOpen = array(
0 => array(0 => 123123, 1 => 63)
1 => array(0 => 552352, 1 => 5)
);
0 in second dimension would be ticket number, and 1 would be amount of bars since the trade was open.
barSinceOpen is just an example.. I know I could calculate this one out for each trade every time I want, but that's not the point. I have ALOT of things I keep track of for a trade.

And to select the correct order I would have to iterate over the array and select the 2nd level array with correct ticket.

Do you think this is a good idea? How would you do it?

__________________
boo

It seems like when I do a orderModify() to set a take profit for example.
And then before next tick or we could aswell say before I select the same order again I do another orderModify() to set a stop loss. And in that I use OrderTakeProfit() so it doesn't remove the take profit. But, It removes the take profit anyway.
Do I need to wait for next tick or to select the order again for the OrderTakeProfit() to return my new take profit?

__________________
boo

That would be in addition.
(I always try to do my homework first.)
Maybe I need explanation and example(s).

Big Be