### MQL5 Function with Parameters and Return Value Source: https://github.com/sergiipovzaniuk/mql5_reference/blob/main/mql5_reference.md Provides an example of a recursive function in MQL5 that calculates Fibonacci numbers. It takes an integer `n` and returns a double representing the nth Fibonacci number. ```mql5 // Calculate Fibonacci number double calculateFibonacci(int n) { if(n <= 1) return n; return calculateFibonacci(n-1) + calculateFibonacci(n-2); } ``` -------------------------------- ### Tick Event Handling in MQL5 Source: https://github.com/sergiipovzaniuk/mql5_reference/blob/main/mql5_reference.md Illustrates the 'OnTick' event handler in MQL5, which is executed on every price tick. This example shows how to retrieve the current Ask price for a symbol and print it, providing a basis for implementing trading logic. ```mql5 void OnTick() { // Get current price double currentPrice = SymbolInfoDouble(_Symbol, SYMBOL_ASK); Print("Current ASK price for ", _Symbol, ": ", currentPrice); // Implement trading logic here } ``` -------------------------------- ### MQL5 Function Overloading (Alternative) Source: https://github.com/sergiipovzaniuk/mql5_reference/blob/main/mql5_reference.md MQL5 does not support direct function overloading. This example shows the common practice of using different function names for functions that perform similar operations but with different parameter types. ```mql5 // Different function names for different parameter types double calculateAverage(int value1, int value2) { return (value1 + value2) / 2.0; } double calculateAverageDouble(double value1, double value2) { return (value1 + value2) / 2.0; } ``` -------------------------------- ### MQL5 Class Definition for Trading Strategy Source: https://github.com/sergiipovzaniuk/mql5_reference/blob/main/mql5_reference.md Defines a basic `TradingStrategy` class in MQL5 with private members for strategy name and lot size, a constructor, a destructor, a method to get the name, and a virtual method for execution. ```mql5 // Trading strategy class class TradingStrategy { private: string strategyName; double lotSize; public: // Constructor TradingStrategy(string name, double lot) : strategyName(name), lotSize(lot) {} // Destructor ~TradingStrategy() {} // Method to get strategy name string getName() { return strategyName; } // Virtual method for strategy execution virtual bool execute() { return false; } }; ``` -------------------------------- ### Hello World in MQL5 Source: https://github.com/sergiipovzaniuk/mql5_reference/blob/main/mql5_reference.md A fundamental MQL5 script that prints 'Hello, World!' to the MetaTrader 5 Experts log. This serves as a basic entry point for new MQL5 developers. ```mql5 //+------------------------------------------------------------------+ //| HelloWorld.mq5 | //| A basic Hello World script for MetaTrader 5 | //+------------------------------------------------------------------+ #property copyright "Your Name" #property link "https://www.yourwebsite.com" #property version "1.00" #property strict //--- script entry point void OnStart() { // Print Hello World to the Experts log Print("Hello, World from MetaTrader 5!"); } ``` -------------------------------- ### MQL5 Constants and Enumerations Source: https://github.com/sergiipovzaniuk/mql5_reference/blob/main/mql5_reference.md Demonstrates how to define constants using `#define` and create enumerations for custom data types, such as trade directions. ```mql5 // Constant definition #define MAX_RETRIES 3 // Enumeration for trade types enum ENUM_TRADE_DIRECTION { TRADE_BUY = 0, // Buy operation TRADE_SELL = 1 // Sell operation }; ``` -------------------------------- ### MQL5 Array Declaration and Dynamic Resizing Source: https://github.com/sergiipovzaniuk/mql5_reference/blob/main/mql5_reference.md Illustrates how to declare and initialize both static and dynamic arrays in MQL5. It shows resizing a dynamic array and populating it with values. ```mql5 // Static array double prices[5] = {1.2, 1.3, 1.4, 1.5, 1.6}; // Dynamic array double dynamicPrices[]; void OnStart() { // Resize dynamic array ArrayResize(dynamicPrices, 5); // Fill array with values for(int i = 0; i < 5; i++) { dynamicPrices[i] = i * 1.1; } // Print array contents ArrayPrint(dynamicPrices); } ``` -------------------------------- ### Timer Event Handling in MQL5 Source: https://github.com/sergiipovzaniuk/mql5_reference/blob/main/mql5_reference.md Demonstrates how to set up and handle timer events in MQL5. The 'OnTimer' function is called periodically, and the timer is initialized in 'OnInit' using EventSetTimer and cleared in 'OnDeinit' using EventKillTimer. ```mql5 void OnTimer() { // Handle periodic tasks Print("Timer event triggered at: ", TimeToString(TimeCurrent(), TIME_DATE|TIME_MINUTES|TIME_SECONDS)); } // Initialize timer in OnInit int OnInit() { // Set timer to trigger every 5 seconds EventSetTimer(5); return(INIT_SUCCEEDED); } // Clean up timer in OnDeinit void OnDeinit(const int reason) { EventKillTimer(); } ``` -------------------------------- ### Market Order Execution in MQL5 Source: https://github.com/sergiipovzaniuk/mql5_reference/blob/main/mql5_reference.md Provides a function 'placeBuyOrder' to execute market buy orders in MQL5. It configures the MqlTradeRequest structure with order details such as symbol, volume, price, stop loss, take profit, and comment, then sends the order using OrderSend. ```mql5 bool placeBuyOrder(string symbol, double volume, double price, double sl, double tp, string comment) { MqlTradeRequest request= {0}; MqlTradeResult result= {0}; request.action = TRADE_ACTION_DEAL; request.symbol = symbol; request.volume = volume; request.price = price; request.sl = sl; request.tp = tp; request.comment = comment; request.type = ORDER_TYPE_BUY; return OrderSend(request, result); } ``` -------------------------------- ### Basic Function Declaration and Usage Source: https://github.com/sergiipovzaniuk/mql5_reference/blob/main/mql5_reference.md Demonstrates how to declare a simple function in MQL5 that adds two double-precision numbers and how to call it within the OnTick event handler. ```mql5 // Simple function to add two numbers double addNumbers(double a, double b) { return a + b; } // Usage in OnTick or OnStart void OnTick() { double result = AddNumbers(5.5, 3.2); Print("Sum: ", result); } ``` -------------------------------- ### Position Information in MQL5 Source: https://github.com/sergiipovzaniuk/mql5_reference/blob/main/mql5_reference.md Shows how to retrieve position profit using the 'getPositionProfit' function in MQL5. It selects a position by its ticket and then uses PositionGetDouble to fetch the profit value. ```mql5 bool getPositionProfit(ulong ticket, double profit) { if(PositionSelectByTicket(ticket)) { profit = PositionGetDouble(POSITION_PROFIT); return true; } return false; } ``` -------------------------------- ### Class Inheritance in MQL5 Source: https://github.com/sergiipovzaniuk/mql5_reference/blob/main/mql5_reference.md Demonstrates class inheritance in MQL5, showing a 'MovingAverageStrategy' class derived from a base 'TradingStrategy' class. It includes a constructor and a virtual 'execute' method for implementing trading logic. ```mql5 class MovingAverageStrategy : public TradingStrategy { private: int maPeriod; double lastMAValue; public: MovingAverageStrategy(string name, double lot, int period) : TradingStrategy(name, lot), maPeriod(period), lastMAValue(0) {} virtual bool execute() { // Simple MA calculation and trading logic double currentMA = iMA(_Symbol, PERIOD_CURRENT, maPeriod, 0, MODE_SMA, PRICE_CLOSE, 0); // Implement trading logic here return true; } }; ``` -------------------------------- ### MQL5 Variable Declarations Source: https://github.com/sergiipovzaniuk/mql5_reference/blob/main/mql5_reference.md Shows basic variable declarations in MQL5, including common data types like int, double, string, bool, color, and datetime. ```mql5 // Basic data types in MQL5 int integerValue = 42; double floatingPoint = 3.14159; string text = "MQL5 Trading"; bool condition = true; color chartColor = clrRed; datetime currentTime = TimeCurrent(); ``` -------------------------------- ### Memory Management with Objects in MQL5 Source: https://github.com/sergiipovzaniuk/mql5_reference/blob/main/mql5_reference.md Illustrates memory management using objects in MQL5, specifically a 'TradeManager' class that utilizes a CTrade object. It shows the use of a constructor to allocate memory and a destructor to deallocate it, preventing memory leaks. ```mql5 class TradeManager { private: CTrade *trade; public: TradeManager() { trade = new CTrade(); } ~TradeManager() { delete trade; } }; ``` -------------------------------- ### Reading from File in MQL5 Source: https://github.com/sergiipovzaniuk/mql5_reference/blob/main/mql5_reference.md Illustrates reading data from a CSV file using the 'readFromCsv' function in MQL5. It opens the specified file in read mode, reads the entire content into a string, and then closes the file, with error handling for file opening. ```mql5 bool readFromCsv(string filename, string data) { int handle = FileOpen(filename, FILE_READ|FILE_CSV|FILE_COMMON); if(handle == INVALID_HANDLE) { Print("Failed to open file, error: ", GetLastError()); return false; } data = FileReadString(handle); FileClose(handle); return true; } ``` -------------------------------- ### MQL5 Primitive Data Types Source: https://github.com/sergiipovzaniuk/mql5_reference/blob/main/mql5_reference.md Illustrates the declaration and usage of MQL5's built-in primitive data types, including various integer, floating-point, boolean, and character types. ```mql5 // MQL5 primitive data types char charVar = 'A'; // 8-bit signed integer (-128 to 127) uchar ucharVar = 255; // 8-bit unsigned integer (0 to 255) short shortVar = -12345; // 16-bit signed integer (-32768 to 32767) ushort ushortVar = 54321; // 16-bit unsigned integer (0 to 65535) int intVar = -123456; // 32-bit signed integer (-2147483648 to 2147483647) uint uintVar = 1234567; // 32-bit unsigned integer (0 to 4294967295) long longVar = -1234567890; // 64-bit signed integer ulong ulongVar = 1234567890; // 64-bit unsigned integer float floatVar = 3.14f; // 32-bit floating point (approximate precision) double doubleVar = 3.1415926535; // 64-bit floating point (higher precision) bool boolVar = true; // Boolean value (true or false) ``` -------------------------------- ### Writing to File in MQL5 Source: https://github.com/sergiipovzaniuk/mql5_reference/blob/main/mql5_reference.md Demonstrates writing data to a CSV file using the 'writeToCsv' function in MQL5. It opens a file in write mode, writes the provided data, and then closes the file, including error handling for file opening. ```mql5 bool writeToCsv(string filename, string data) { int handle = FileOpen(filename, FILE_WRITE|FILE_CSV|FILE_COMMON); if(handle == INVALID_HANDLE) { Print("Failed to open file, error: ", GetLastError()); return false; } FileWrite(handle, data); FileClose(handle); return true; } ``` -------------------------------- ### Checking Function Results in MQL5 Source: https://github.com/sergiipovzaniuk/mql5_reference/blob/main/mql5_reference.md Shows how to check the results of trading functions in MQL5, using the 'checkOrderResult' function. It examines the 'retcode' from an MqlTradeResult to determine if an order was executed successfully or failed, printing appropriate messages. ```mql5 bool checkOrderResult(MqlTradeResult result) { if(result.retcode == TRADE_RETCODE_DONE) { Print("Order executed successfully, ticket: ", result.order); return true; } else { Print("Order failed with error #", result.retcode, ": ", GetLastError()); return false; } } ``` -------------------------------- ### MQL5 Array Operations: Finding Highest Value Source: https://github.com/sergiipovzaniuk/mql5_reference/blob/main/mql5_reference.md A function that iterates through an array of doubles to find and return the highest value. It takes a double array as input. ```mql5 // Find highest value in array double findHighestPrice(double[] prices) { double highest = prices[0]; for(int i = 1; i < ArraySize(prices); i++) { if(prices[i] > highest) highest = prices[i]; } return highest; } ``` === COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.