A Code block to detect A “New Candle/Bar” using bars history (very effective way) – expert advisor for MetaTrader 5

In previous code I used the time to detect a new bar. This time let’s use the bars count to detect a new bar. it’s way lighter and faster than using the time method.

• Declare the variables in integer data type to store the bar counts. 
• Assign the bars count for the “BarsTotal_OnInt” at the initialization. 
• Use iBars(); function to assign the bars count for the “BarsTotal_OnTick” variable at live chart. This variable is updated on every tick. 
• Use comments and alerts to check the code accuracy.

int BarsTotal_OnInt; 
int BarsTotal_OnTick;
//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
  {  
   BarsTotal_OnInt = iBars(NULL,PERIOD_CURRENT); // Asign the total bars at initialization
   return(INIT_SUCCEEDED);
  }
  
void OnTick() // OnTick Function
  {   
   BarsTotal_OnTick = iBars(NULL,PERIOD_CURRENT); // Stores the latest amount
   
   if(BarsTotal_OnTick > BarsTotal_OnInt) // New bar has arrived
   {
    BarsTotal_OnInt = BarsTotal_OnTick; // Updates the history.
    Alert("New Bar has arrived");
    Comment("Bars Count in history -: ", BarsTotal_OnInt, "\n", "Bars Count in Live -: ", BarsTotal_OnTick);

     // Your Code goes here. --------------------------
    
    // You can update a "flag" / variable to use it on later too. 

   }
  }