I need to add an expiry date to my Expert Advisor

Quoting WayToGo

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If someone can help me to add an expiry date on my EA, it will be nice, cus I wanna give it as a trial version for some ppl. I am not a programmer. I tried some codes from the net, but they didn't work and got error. My EA is working on MT4. Thanks in Advance

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//put at the top before Init() function
 
string ExpiryDate="2015.02.26";
 
//put in the Init() function
if(TimeCurrent() >= StrToTime(ExpiryDate)){
Alert("This indicator has expired. Contact xxx for new version");
return(0);
}
else{
Print(" Indicator Valid");
}

datetime expiryDate = D'2015.10.25 00:00'; //change as per your requirement
 
int OnStart()
  {
   if(TimeCurrent() > expiryDate)
     {
      Alert("Expired copy. Please contact vendor.")
      return(0);
     }
//continue with code.

Quoting GnWFx

Disliked

Simpler would be: datetime expiryDate = D'2015.10.25 00:00'; //change as per your requirement int OnStart() { if(TimeCurrent() > expiryDate) { Alert("Expired copy. Please contact vendor.") return(0); } //continue with code. Note: Putting this code in OnInit() function won't work. The EA will still execute. It should be placed in OnStart() function.

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Quoting WayToGo

Disliked

{quote} Thank you both for your help But I got errors too check the pic please {image}

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Quoting honestknave

Disliked

{quote} Add another } after return(0);

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Quoting WayToGo

Disliked

{quote} Thx now one error {image}

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Quoting hanzov

Disliked

But not share mql file! Still, in decompiled version your expiry date easy to identify.

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//put on top before OnInit function
datetime expiryDate = D'2015.10.25 00:00'; //change as per your requirement
int OnStart()
  {
   if(TimeCurrent() > expiryDate)
     {
      Alert("Expired copy. Please contact vendor.");
      return(0);
     }
//continue with code.
   return(0)
  }
//other functions if any

Quoting GnWFx

Disliked

I think you need a little help of a programmer to properly add these lines of code into your program. In new MQL4, OnStart function is of int type. Also the rest of your code along with any function calls should appear before the final return statement followed by closing parenthesis. The way you have written code, the EA would terminate after checking the date.

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Quoting BKKnight

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I hope this is the best thread to post to here... As a VERY novice EA programmer I want to know the differences in some some simple MQL4 terms as Im trying to include a date expiry check in my EA what are the meanings of int OnStart(), int Oninit(), void OnStart() and void OnTick() and are they all still valid commands? OnTick means that it executes the command when a new price is received... but if I want to have a return(0) to check say EA date validity then I cannot use OnTick So can you use int OnStart for the check and then void OnTick for...

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Quoting cyber1

Disliked

{quote} WayToGo- Not tested but this should work. //put at the top before Init() function string ExpiryDate="2015.02.26"; //put in the Init() function if(TimeCurrent() >= StrToTime(ExpiryDate)){ Alert("This indicator has expired. Contact xxx for new version"); return(0); } else{ Print(" Indicator Valid"); }

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Quoting philo888

Disliked

Can some one help me add expiry code in this EA {file}

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