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Problems with Simple MarketInfo() function

  • #1
  • First Post: Sep 30, 2008 4:45am Sep 30, 2008 4:45am
hi there,
i am new in MT programming.
can anyone help to advise me what is the problems with this simple MarketInfo() function:

double eurusd_ask;
double eurusd_bid;

double usdchf_ask;
double usdchf_bid;

int start(){

eurusd_ask = MarketInfo("EURUSD",MODE_ASK);
eurusd_bid = MarketInfo("EURUSD",MODE_BID);

usdchf_ask = MarketInfo("USDCHF",MODE_ASK);
usdchf_bid = MarketInfo("USDCHF",MODE_BID);

Comment(eurusd_ask,eurusd_bid,usdchf_ask,usdchf_bid);
}

all the variables appear to be 0000.

i am running this program in the GBPUSD chart.
  • #2
  • Sep 30, 2008 9:09am Sep 30, 2008 9:09am
Is there supposed to be an "m" suffix for this symbol? Perhaps the result is good but you need to convert the doubles to strings to show in Comment.?
  • #3
  • Sep 30, 2008 9:25am Sep 30, 2008 9:25am
Just tried this, works fine.


Inserted Code
 
//+------------------------------------------------------------------+
//| expert initialization function                                   |
//+------------------------------------------------------------------+
int init()
  {
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| expert deinitialization function                                 |
//+------------------------------------------------------------------+
int deinit()
  {
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| expert start function                                            |
//+------------------------------------------------------------------+
int start()
  {
//----
double eurusd_ask;
double eurusd_bid;
double usdchf_ask;
double usdchf_bid;
eurusd_ask = MarketInfo("EURUSD",MODE_ASK);
eurusd_bid = MarketInfo("EURUSD",MODE_BID);
usdchf_ask = MarketInfo("USDCHF",MODE_ASK);
usdchf_bid = MarketInfo("USDCHF",MODE_BID);
Comment(eurusd_ask," ",eurusd_bid," ",usdchf_ask," ",usdchf_bid);
//----
   return(0);
  }
//+------------------------------------------------------------------+
  • #4
  • Sep 30, 2008 9:46am Sep 30, 2008 9:46am
Quoting euclid
Just tried this, works fine.


Inserted Code
 
//+------------------------------------------------------------------+
//| expert initialization function                                   |
//+------------------------------------------------------------------+
int init()
  {
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| expert deinitialization function                                 |
//+------------------------------------------------------------------+
int deinit()
  {
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| expert start function                                            |
//+------------------------------------------------------------------+
int start()
  {
//----
double eurusd_ask;
double eurusd_bid;
double usdchf_ask;
double usdchf_bid;
eurusd_ask = MarketInfo("EURUSD",MODE_ASK);
eurusd_bid = MarketInfo("EURUSD",MODE_BID);
usdchf_ask = MarketInfo("USDCHF",MODE_ASK);
usdchf_bid = MarketInfo("USDCHF",MODE_BID);
Comment(eurusd_ask," ",eurusd_bid," ",usdchf_ask," ",usdchf_bid);
//----
   return(0);
  }
//+------------------------------------------------------------------+
thanks guys, i think i will reinstall the Meta4 platform and see it solves the problem.
  • #5
  • Sep 30, 2008 11:48am Sep 30, 2008 11:48am
Quoting Kenz987
Is there supposed to be an "m" suffix for this symbol? Perhaps the result is good but you need to convert the doubles to strings to show in Comment.?
yeah, most likely...it's the m problem. If you have "GBPUSDm", then don't type in "GBPUSD"
Request custom Expert Advisor or Indicator: dostapyuk "at" gmail . com
  • #6
  • Sep 30, 2008 9:17pm Sep 30, 2008 9:17pm
Quoting Oksana17
yeah, most likely...it's the m problem. If you have "GBPUSDm", then don't type in "GBPUSD"

Some brokers have suffixes attached to the currency pairs.
In the above example, an "m" was needed - this is the case of IBFX's MINI Account.
That code will not work as other brokers use ".", some use "x", or whatever have you.

I personally resort to doing this:

string cx = StringSubstr(Symbol(),6);
eurusd_ask = MarketInfo("EURUSD"+cx,MODE_ASK);
eurusd_bid = MarketInfo("EURUSD"+cx,MODE_BID);

With this, I am assured it will work on ALL brokers even if they use "s", "c", "a", "m", as suffixes.
  • #7
  • Oct 1, 2008 2:48am Oct 1, 2008 2:48am
Quoting BurgerKing
Some brokers have suffixes attached to the currency pairs.
In the above example, an "m" was needed - this is the case of IBFX's MINI Account.
That code will not work as other brokers use ".", some use "x", or whatever have you.

I personally resort to doing this:

string cx = StringSubstr(Symbol(),6);
eurusd_ask = MarketInfo("EURUSD"+cx,MODE_ASK);
eurusd_bid = MarketInfo("EURUSD"+cx,MODE_BID);

With this, I am assured it will work on ALL brokers even if they use "s", "c", "a", "m", as suffixes.
hi burgerking,
thanks for your advise. i had used your code and i am still having the same problem in displaying the readings when i am on the EURCHF H1 Chart. by the way. there is no suffixes from my broker(ETXCO).
however, when i load this test EA onto the EURUSD H1 chart, the numbers started to read without problem.
  • #8
  • Last Post: Oct 1, 2008 9:02am Oct 1, 2008 9:02am
http://i33.tinypic.com/2ng4cpe.gif

Marketinfo indikator work ok.
My english not so good. I soory.
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