Script example - page 2

Period_converter script refreshes my offline H3 chart by PostMessage function.

And what script or expert refreshes your offline H1 chart?

int init()
  {
   start();   // call start() function
   return(0);
  }
int deinit()
  {
   return(0);
  }
int start()
  {
  double mBid = 0.00;
  double mAsk = 0.00;
  while (!IsStopped())
   {
   mBid = MarketInfo( Symbol(), MODE_BID );
   mAsk = MarketInfo( Symbol(), MODE_ASK );
 
   double ma = iMA( NULL, 0, ....... );  // insert other things here
   
   Alert(mBid, " ",mAsk);
   Sleep(1000);
   }
   return(0);
  }

How can I add custom indicators in this script to check last bars to verify sell or buy?

Thank in advance!

Hello guys,

i just created an EA based on the above code. But when the EA opens a position, a message appears at the Experts tab console, saying that the EA initialized. After that, the EA is dead and nothing else can be executed.

I would appreciate any help

Thank you

For what it's worth, I use this in the EA I created for offline Renko charts... :-) 

This will allow MT4 to kill the EA if needed, and will also stop the EA if you turn off "Experts Allowed" in your MT4 app.

void OnInit() {
   // Perform init stuff here...

   // Since we are running in an offline chart, we must manually call OnTick() and run a forever while() loop inside of that.
   OnTick();

   return;
}

void OnTick() {

   while (!IsStopped()) {   

      if (!IsExpertEnabled()) { break; }

      //---- Only go trading on the beginning of a NEW bar/candle.
      if (isNewBar()) { 
         journalString = StringConcatenate(alertPrefix, "New bar! Time: ",Time[0]);
         Print(journalString);  

         checkForTrades();
      }
   }   

   // Sleep for 100ms so we don't kill the CPU
   Sleep(100);

   }  
}

void checkForTrades() {
   // Code for checking if you should place an order or exit an order goes here...

}

Just two points. More than 6 months there has been OnTimer event handler, so no need for loops in OnTick() or OnInit(). The other point is that you can test only a strategy based on a standard OnTick event.

So better to chose such an offline chart that does not require workarrounds.