indicator Finish Loading event

[Essam Daoud]

Hi

A mql4 code changes the chart symbol using the "ChartSetSymbolPeriod" method. And since the chart has an indicator, it takes a second or two to render the indicator onto the sub window.

Is there a call back which gets triggered once the indicator finished rendering so that I can do other stuff?

Or how can the code know that the indicator is all ready rendered?

Thanks

[William Roeder]

Wait for a new tick.

Don't try to use any price or server related functions in OnInit (or on load,) as there may be no connection/chart yet:

1. Terminal starts.
2. Indicators/EAs are loaded. Static and globally declared variables are initialized. (Do not depend on a specific order.)
3. OnInit is called.
4. For indicators OnCalculate is called with any existing history.
5. Human may have to enter password, connection to server begins.
6. New history is received, OnCalculate called again.
7. New tick is received, OnCalculate/OnTick is called. Now TickValue, TimeCurrent, account information and prices are valid.