Articles
Engineering Trading Discipline into Code (Part 9): Building a Trade Activity Audit Trail in MQL5 for MetaTrader 5
Trade authorization controls what a cooperating Expert Advisor is permitted to send, but not every account action passes through that code. A trade may originate from the desktop terminal, a mobile device, the web terminal, or another Expert Advisor. This installment develops an independent auditor
Price Action Analysis Toolkit Development (Part 87): Searching Chart History with Recorded Double-Bottom Samples for MetaTrader 5
This stage connects structural validation with reference matching for double bottoms. The Expert Advisor scans completed history, filters pairs by the current structural rules, and compares normalized close and low profiles against validated samples from the library. Results that meet the similarity
Price Action Analysis Toolkit Development (Part 86): Validating the Entire Sample Library for MetaTrader 5
This part adds library-wide validation to the double-bottom toolkit. VALIDATE ALL applies the single-sample rule engine to the stored collection, counts its four outcomes and exports a separate CSV report. The report includes settings, sample context and detailed results. Source samples remain
Price Action Analysis Toolkit Development (Part 85): Visualizing and Reviewing Validated Double-Bottom Samples for MetaTrader 5
This part adds a visual review layer to the double-bottom workflow. It checks the chart context, moves to the recorded period, and renders the range, two qualifying lows, neckline, classification, score, and the first decisive close. The annotations mirror the validator's indices and prices, helping
Price Action Analysis Toolkit Development (Part 84): Validating Recorded Double-Bottom Samples for MetaTrader 5
This work adds an explainable validation module to the recording toolkit for double bottoms. It finds and filters swing lows, selects the neckline, quantifies depth, low similarity, symmetry and recovery, and assigns a rule-based status and scores accepted pairs. The settings are configurable, the
Price Action Analysis Toolkit Development (Part 83): Building a Reusable Double-Bottom Pattern Library for MetaTrader 5
This recorder bridges visual labeling and systematic research in MQL5. After you position a rectangle, the EA extracts the candles it spans, derives candle geometry, normalizes OHLC values, assigns an ID, and saves the sample for reuse across sessions. The current category is the double bottom, and
Price Action Analysis Toolkit Development (Part 82): Annotating Historical Bookmarks with Reliable Timeframe Switching for MetaTrader 5
We implement visible bookmark annotations and a hand-off mechanism for cross-symbol and cross-timeframe recall. The navigator stores the target in terminal Global Variables, waits for stable bars after reinitialization, and rebuilds only matching markers with safe cleanup. Traders can inspect saved
Price Action Analysis Toolkit Development (Part 81): Adding Persistent Historical Bookmarks to an MQL5 Navigator for MetaTrader 5
We introduce a persistent bookmark layer for the MetaTrader 5 History Navigator. Bookmarks capture a chart's symbol, timeframe, and historical position with a name and notes, write them to a CSV file, and reload them later without manual date entry. The implementation integrates bookmark management
Price Action Analysis Toolkit Development (Part 80): Building a History Navigator for MetaTrader 5 for MetaTrader 5
We implement a History Navigator for MetaTrader 5 that jumps the chart to an exact historical period by date and time. The dialog validates inputs, converts them to datetime, and searches bar times with a binary-search routine before centering the selected candle. The navigation logic is separated
Price Action Analysis Toolkit Development (Part 79): Extending the Indicator Search Panel with Dynamic Input Parameter Configuration for MetaTrader 5
We integrate parameter configuration into the indicator search workflow in MQL5. A central repository describes each indicator's inputs, a dynamic dialog renders controls from those definitions, and the dialog validates entries and converts them to MqlParam. The chart launcher then creates the