MarketInfo Universal Lib for MQL 4

• Access symbol data, OHLC prices, spreads, and volatility with a single call.
• Query account balance, free margin, stop levels, and lot constraints.
• Work with currency precision, pip values, and normalized volumes.
• Retrieve time data and detect Strategy Tester mode.

• Write once, run everywhere — MT4 & MT5.
• Save time, reduce errors, and focus on strategy, not boilerplate.

You can download the free source code of this library from github and you can include it directly in your EA code; please note that the source file is compatible with both MT4 and MT5 platforms.

Usage Example 

// Include the market info API header
#import "vladefix/market-info-lib-v1.00.ex4"
   string GetSymbol();
   double GetAskPrice();
   double GetBidPrice();
   double GetClose(int, ENUM_TIMEFRAMES);
   double GetOpen(int, ENUM_TIMEFRAMES);
   double GetHigh(int, ENUM_TIMEFRAMES);
   double GetLow(int, ENUM_TIMEFRAMES);
   ...
   double GetFreeMarginAfterCheck(double, int, double);
   string DoubleToCurrencyString(double);
   bool IsTestingMode();
   void DestroyMarketInfoLib();
#import

//-------------------------------------------------------
// Initialization function (OnInit)
//-------------------------------------------------------
int OnInit()
{
   Print("Symbol: ", GetSymbol());
   Print("Ask: ", GetAskPrice(), " | Bid: ", GetBidPrice());
   Print("Spread: ", GetSpread(), " points");

   double lot = NormalizeVolume(0.158);
   Print("Normalized lot: ", lot);

   double balance = GetAccountBalance();
   Print("Account Balance: ", DoubleToCurrencyString(balance));

   if(IsTestingMode())
      Print("Running in Strategy Tester...");
}


void OnDeinit(const int reason)
  {
     DestroyMarketInfoLib()
  }