convert indicator from mt5 to mt4

[Kuppusamy k]

Dear developers,

I have an indicator , which works fine in mt5., please help me in finding the corresponding MT4 API for below Api's

int OnInit()

int OnCalculate()

[Fabio Cavalloni]

OnInit and OnCalculate are not API but functions.

They both exists in MT4 and MT5.

[William Roeder]

1. Why did you post your MT4 question in the Root / MT5 General section instead of the MQL4 section, (bottom of the Root page?)
             General rules and best pratices of the Forum. - General - MQL5 programming forum
   Next time post in the correct place. The moderators will likely move this thread there soon.

2. Perhaps you should read the manual.
             Event Handling Functions - Functions - Language Basics - MQL4 Reference