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MQL5 Reference
Constants, Enumerations and Structures
Named Constants
Predefined Macro Substitutions
Mathematical Constants
Numerical Type Constants
Uninitialization Reason Codes
Checking Object Pointer
Other Constants
Named Constants
All constants used in MQL5 can be divided into the following groups:
Predefined macro substitutions
– values are substituted during compilation;
Mathematical constants
– values of some mathematical expressions;
Numerical type constants
– some of the simple type restrictions;
Uninitialization reason codes
– description of uninitialization reasons;
Checking Object Pointer
– enumeration of types of pointers returned by the
CheckPointer()
function;
Other constants
– all other constants.
Signal Properties
Predefined Macro Substitutions