MQL4 - Forex Glossary | ForexCracked
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Platforms & Tech Intermediate

MQL4

Also called: MetaQuotes Language 4

MetaQuotes Language 4 — the programming language for indicators, scripts, and Expert Advisors on MT4.

01

Definition

MQL4 is a C-style language with built-in trading functions. Less strict than MQL5 (looser typing, fewer object-oriented features) but with an enormous codebase from the platform’s two-decade install base.