How to code? - Page 5

shwetha · #41 (**permalink**) 03-18-2006, 04:27 PM

hi
even i had the same question and was lookin how to increase the lot size after a losing trade.
ex:
If previous trade has not reached the take profit level and is closed by stoploss/break even then lot size is two lots.

•If previous two trades has not reached the take profit level an closed by stop loss/break even then lot size is three lots.

•If previous three trades is not reached the take profit leveland closed by stop loss/break even then lot size is four lots.

i hope the guys here can help both of us by doing the code for the same
thanks in advance
shwetha

Quote:

Originally Posted by warpio

I want to know if there's any way to tell an EA to increase the lot size if the last trade closed in loss (martingale system), and use the normal lot size if the last trade closed in profit. It needs to be able to use micro lots. Is there any way to do this?

FX5 · #42 (**permalink**) 03-18-2006, 04:59 PM

Hello Everybody,

I have a lot of problems in debuging the code written for MT4. So I thought of writting most of the code in a DLL file then import those function to my MQL4 code. The problem I am facing is that this method doesn't succeed for DLL's written in C#. Does anybody now where the problem could be? A demonstration code would be so much appreciated.

I would also appreciate any other ideas for debugging MQL4 code.

regrard,

codersguru · #43 (**permalink**) 03-18-2006, 05:09 PM

Quote:

Originally Posted by FX5

Hello Everybody,

I have a lot of problems in debuging the code written for MT4. So I thought of writting most of the code in a DLL file then import those function to my MQL4 code. The problem I am facing is that this method doesn't succeed for DLL's written in C#. Does anybody now where the problem could be? A demonstration code would be so much appreciated.

I would also appreciate any other ideas for debugging MQL4 code.

regrard,

FX5,
I've wrote the dll code in C++, maybe it helps!
MT4 Files Functions Replacement.

FX5 · #44 (**permalink**) 03-18-2006, 05:33 PM

Thanks codersguru for the Ultrafast reply.

I will check the code and get back to you.

techinvest · #45 (**permalink**) 03-21-2006, 07:30 PM

This is just a sample EA based on a price/simple MA cross. The reason I'm asking to get it checked out is because it's essentially the backbone of a few EA's I'm developing (the structure, not the strategy). All I need to do is verify that this EA will only trade on the completion of a bar. If someone can help me verify this, I'd appreciate it a lot. I'm still pretty new to MQL4 and just want to get this double checked before I go any further. I have about 4 EA's being developed @ the moment, and just want to be sure they execute trades correctly. In this case it would be only on a full bar.

In the EA one would only need to change EachTickMode to TRUE to make it trade tick by tick instead of bar by bar. Anyway, that's the idea. I'd appreciate any help.

DooMGuarD · #46 (**permalink**) 03-24-2006, 08:26 PM

hi all

how i debug the code (experts, indicatos, script) in runtime
(step by step)

thanks

intelligent_14 · #47 (**permalink**) 04-02-2006, 03:52 PM

hi

as you know, the MA indicator attachs to the main chart window, so it's scale will equal to price ratio, when you want to set a level=20, it means, you want to draw a horizontal line at 20 price ratio, the prices are too far from 20, so you can't see any line

BC Brett · #48 (**permalink**) 04-06-2006, 09:55 PM

Quote:

Originally Posted by DooMGuarD

hi all

how i debug the code (experts, indicatos, script) in runtime
(step by step)

thanks

Wish I had the answer.
I just finished writing my first EA and tried testing it in Strategy Tester.
I was getting errors showing in the ST journal so I tried using the Print function in my EA to debug the problems. I've worked out a few bugs so far this way, but it's a slow process.

eric79 · #49 (**permalink**) 04-09-2006, 12:03 PM

Hi
I am trying to code a very simple EA to test a strategy.
All it should do is open an order at a given time.
Take Profit, Stop Loss and position size are external variables.

I can't program but i tried to do it.
This is what i have but it doesn't open any trades in backtest.

Could anybody help me?
Thanks a lot.

Code:

//+------------------------------------------------------------------+
//|                                                           TH.mq4 |
//|                      Copyright © 2006, MetaQuotes Software Corp. |
//|                                        http://www.metaquotes.net |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2006, MetaQuotes Software Corp."
#property link      "http://www.metaquotes.net"

//---- input parameters
extern int       StartHour=0;
extern int       StartMinute=00;
extern int       TakeProfit=10;
extern int       StopLoss=20;
extern int       Lots=1;
//+------------------------------------------------------------------+
//| expert initialization function                                   |
//+------------------------------------------------------------------+
int init()
  {
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| expert deinitialization function                                 |
//+------------------------------------------------------------------+
int deinit()
  {
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| expert start function                                            |
//+------------------------------------------------------------------+
int start()
  {
//----
   if (Hour()==StartHour && Minute() == StartMinute)
   {
   OrderSend(Symbol(),OP_BUY,Lots,Ask,3,StopLoss,Ask+TakeProfit*Point,"TH_Buy",16384,0,Green);
   }
//----
   return(0);
  }
//+------------------------------------------------------------------+

pengie · #50 (**permalink**) 04-09-2006, 02:13 PM

The problem is with your stoploss. Your OrderSend statement should be written as:

OrderSend(Symbol(),OP_BUY,Lots,Ask,3,Ask-StopLoss*Point,Ask+TakeProfit*Point,"TH_Buy",16384 ,0,Green);

Also, for some brokers, it is not possible to use 10pips as takeprofit. You may have to increase it to 15pips.