How to add a magic number

**billsechen** · 02-23-2009 14:40

thank you for your last replying.i runned two inpendent ea,which are same code, different parameter to different currency on one mt4,you know,and but they conflicted again,maybe my magic number is wrong,so how to write the code magic number.i am a new fish.hehe.

**funyoo** · 02-25-2009 22:50

Originally Posted by billsechen

thank you for your last replying.i runned two inpendent ea,which are same code, different parameter to different currency on one mt4,you know,and but they conflicted again,maybe my magic number is wrong,so how to write the code magic number.i am a new fish.hehe.

Hi billsechen,

After the "comment" into each OrderSend function :

You replace the value 0 by this :

Code:

Magic

Then search this line :

Code:

OrderSymbol()==Symbol()

In-line after and for each occuration, you add that :

Code:

 && OrderMagicNumber()==Magic

Finally after the extern parameters, you add this :

Code:

extern int Magic=2009;

**jidonk** · 03-24-2009 06:05

How can I code to automatically use different Magic for different pairs? Thanks

Rgds,
Jdk

**jezzer1961** · 03-24-2009 08:29

Originally Posted by jidonk

How can I code to automatically use different Magic for different pairs? Thanks

Rgds,
Jdk

I'm not sure why you would need to do this.

Can you explain a bit more?

**przem81621** · 03-24-2009 08:37

Originally Posted by jidonk

How can I code to automatically use different Magic for different pairs? Thanks

Rgds,
Jdk

automatic magic you can find in this ea

**jidonk** · 03-24-2009 13:38

Originally Posted by jezzer1961

I'm not sure why you would need to do this.

Can you explain a bit more?

I put my EA on many different pairs and I don't want to change the magic manually. If it coded on the EA would be much easier.

Thanks & Regards Jezzer,
Jdk

**jidonk** · 03-24-2009 13:39

Originally Posted by przem81621

automatic magic you can find in this ea

Thank you very much

Rgds
Jdk

**jezzer1961** · 03-24-2009 14:15

Originally Posted by jidonk

I put my EA on many different pairs and I don't want to change the magic manually. If it coded on the EA would be much easier.

Thanks & Regards Jezzer,
Jdk

Jdk,

I thought you might say that.

You should, however, be able to use the same EA with the same magic number for multiple symbols without needing to change anything. Just as long as the orders are selected for processing by their symbol (which they should be).

The only scenario where you would need a different magic number should be if you used the same EA on the same symbol but on different timeframes. Then you would need different magic numbers to ensure that the M5 instance didn't close trades from the M30 instance and vice-versa.

**jidonk** · 03-24-2009 16:57

Originally Posted by jezzer1961

Jdk,

I thought you might say that.

You should, however, be able to use the same EA with the same magic number for multiple symbols without needing to change anything. Just as long as the orders are selected for processing by their symbol (which they should be).

The only scenario where you would need a different magic number should be if you used the same EA on the same symbol but on different timeframes. Then you would need different magic numbers to ensure that the M5 instance didn't close trades from the M30 instance and vice-versa.

OK I got it now.
As you mention it, I may try it on the different timeframe as well.

Thanks for your help Jezzer. I have learn so many from you for the last view days. Hopefully I'll be a good coder as you are.

Cheers
Jdk

**enterfx** · 11-26-2009 03:41

Originally Posted by funyoo

After the "comment" into each OrderSend function :

You replace the value 0 by this :

Code:

Magic

What about the "0" in the ordermodify line?

Code:

OrderModify(OrderTicket(),OrderOpenPrice(),newSL,OrderTakeProfit(),0,Red);

Should the 'Magic' ideally be added here as well?

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