Close order EA

Hello,

The requirements of EA are as follows:

When user attaches EA to the chart, the EA allows user to key in:

-Comment (in order to match the orders to be closed)
-Price of pair of currency (when the pair of currency reaches the price, the EA will close the orders)

For example, when user attaches the EA to the GBPUSD chart, user keys in "AAA" in Comment column and 1.5600 in Price of Pair of Currency column

When GBPUSD reach 1.5600, the EA will close all the orders with comments "AAA"

Anyone could help me create this EA? Thank you very much.

"Comments" can only be inserted when an order is placed.
It can either be a Limit Order, Stop Order, or Market

You cannot put comments afterwards.

Yes I know, when I manually open order, I will insert the comment. So the EA also have to allow user enter comment to match which order to be closed

I am learning the mq4 coding and manged to write an EA, but I still found a minor error, I hope anyone here could help me solve it.

extern string TradeComment="hello123";
extern double HigherClose=1.6000;
//+------------------------------------------------------------------+
//| expert initialization function |
//+------------------------------------------------------------------+
int init()
{
//----

//----
return(0);
}
//+------------------------------------------------------------------+
//| expert deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//----

//----
return(0);
}
//+------------------------------------------------------------------+
//| expert start function |
//+------------------------------------------------------------------+
int start()

{
if(Bid>HigherClose)
{
for(int a=0;a<OrdersTotal();a++)
if(OrderSelect(a,SELECT_BY_POS, MODE_TRADES) && OrderComment()==TradeComment)
//if(OrderSymbol()==Symbol())
//if(OrderComment()==TradeComment)
OrderClose(OrderTicket(),OrderLots(),OrderClosePrice(),1000,White);
Sleep(1);
//----

//----

}
return(0);
}

I have 3 open positions (GBPUSD, GBPJPY, EURJPY) with comments=hello123.
I attach the EA to the GBPUSD chart. When GBPUSD's bid price is 1.6001, it only close GBPUSD AND EURJPY order. The GBPJPY order still open UNTIL GBPUSD's bid price is 1.6002

Could anyone here help me solve it? Thank you very much

for(int a=OrdersTotal()-1;a>=0;a--)

Thank you very much. The problem solved it