Detection of a new bar for an EA in mql4

Quoting Mr_jk

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hi Use this function in your code: bool NewBar() { static datetime lastbar; datetime curbar = Time[0]; if(lastbar!=curbar) { lastbar=curbar; return (true); } else { return(false); } }

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Quoting Akh12851

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{quote} Hi Mr_Jk, Correct me if i'm wrong, but you declare the lastbar variable in your function (and as a consequence, your test should always return true). However, since you need to be able to change/store this value, wouldn't it be better to have the declaration in your main code or maybe in your init function ? Have all a good day,

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Quoting honestknave

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{quote} lastbar has been declared as a static variable. This means that it keeps its value between function calls.

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Quoting Mr_jk

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hi Use this function in your code: bool NewBar() { static datetime lastbar; datetime curbar = Time[0]; if(lastbar!=curbar) { lastbar=curbar; return (true); } else { return(false); } }

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bool IsNewBar()
{
   static datetime lastbar;
   datetime curbar = (datetime)SeriesInfoInteger(_Symbol,_Period,SERIES_LASTBAR_DATE);
   if(lastbar != curbar)
   {
      lastbar = curbar;
      return true;
   }
   return false;
}

Quoting Nicholishen

Disliked

This is the same as Mr JK, however, this version is compatible with MQL4/5 which makes for easier transition to 5 whenever that time comes. eg. You want to test in 5, but trade on 4. Edit: It's also the only way you want to check for new bars with MTF on MQL4 bool IsNewBar() { static datetime lastbar; datetime curbar = (datetime)SeriesInfoInteger(_Symbol,_Period,SERIES_LASTBAR_DATE); if(lastbar != curbar) { lastbar = curbar; return true; } return false; }

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Quoting TheMaxx

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{quote} I've been using this code for an alert, and sometimes it only triggers 5-10 minutes after the bar has formed. What am I doing wrong please?

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Quoting Nicholishen

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{quote} Is the symbol in the market watch window?

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Quoting TheMaxx

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{quote} Yes, I'm running alert indicators on EURJPY and GBPJPY, and they're both showing up in the market watch window.

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Quoting Nicholishen

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{quote} How frequent is sometimes? Is it always around the same time of day?

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Quoting dawsonsg

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Hi Guys, I have been going through this forum and google and am try to find the best method to detect the start of a new bar. There are lots of different things that people have used in their code. Some look convuluted and some just dont work. Is there a best way of doing this? Steev

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Quoting TheMaxx

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{quote} Not really... My indicator should trigger 3-4 times a day per pair, and at random times. I'd say half of my alerts are within a few minutes, half are 5-20 minutes late. I am running it on a VPS which is little overloaded, but runs ok. What are your thoughts on running this script here to force a refresh? https://www.forexfactory.com/showthread.php?t=492302 Was thinking of setting the force refresh to every minute to lighten up the resources on my VPS.

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Quoting Nicholishen

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{quote} What do you mean alerts on a VPS? Are you talking about MQL5.com push notifications to your phone? If so that's your problem. Switch to email.

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Quoting Nicholishen

Disliked

{quote} What do you mean alerts on a VPS? Are you talking about MQL5.com push notifications to your phone? If so that's your problem. Switch to email.

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bool NewBar()
  {
   static datetime time=0;
   if(time==0)
     {
      time=Time[0];
      return false;
     }
   if(time!=Time[0])
     {
      time=Time[0];
      return true;
     }
   return false;
  }