Code execution at the bar opening

t is often necessary to execute code only at new bar opening. It may be useful for sending e-mails or showing alerts, when it has to be done once for every bar. There are surely a lot of use cases. I present you the code of a function returning true if this is the first tick of a new bar:

bool isNewBar() {
 static int prevTime;
 bool newBar=false; 

 if(Time[0]!=prevTime) {


Then you only need to check the value of isNewBar:

if(isNewBar()) {
 // code to execute in a new bar

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