MQL4 Reference Constants, Enumerations and Structures Environment State Running MQL4 Program Properties

Running MQL4 Program Properties

To obtain information about the currently running mql4 program, constants from ENUM_MQL_INFO_INTEGER and ENUM_MQL_INFO_STRING are used.

For function MQLInfoInteger

ENUM_MQL_INFO_INTEGER

Identifier	Description	Type
MQL_CODEPAGE	Codepage used by an MQL4 program to output and convert strings (Print, PrintFormat, Alert, MessageBox, SendFTP, SendMail, SendNotification, etc.)	Codepage constant
MQL_PROGRAM_TYPE	Type of the MQL4 program	ENUM_PROGRAM_TYPE
MQL_DLLS_ALLOWED	The permission to use DLL for the given executed program	bool
MQL_TRADE_ALLOWED	The permission to trade for the given executed program	bool
MQL_SIGNALS_ALLOWED	The permission to modify the Signals for the given executed program	bool
MQL_DEBUG	The flag, that indicates the debug mode	bool
MQL_PROFILER	The flag, that indicates the program operating in the code profiling mode	bool
MQL_TESTER	The flag, that indicates the tester process	bool
MQL_OPTIMIZATION	The flag, that indicates the optimization process	bool
MQL_VISUAL_MODE	The flag, that indicates the visual tester process	bool
MQL_FRAME_MODE	The flag, that indicates the Expert Advisor operating in gathering optimization result frames mode	bool
MQL_LICENSE_TYPE	Type of license of the EX4 module. The license refers to the EX4 module, from which a request is made using MQLInfoInteger(MQL_LICENSE_TYPE).	ENUM_LICENSE_TYPE

For function MQLInfoString

ENUM_MQL_INFO_STRING

Identifier	Description	Type
MQL_PROGRAM_NAME	Name of the MQL4-program executed	string
MQL_PROGRAM_PATH	Path for the given executed program	string

For information about the type of the running program, values of ENUM_PROGRAM_TYPE are used.

ENUM_PROGRAM_TYPE

Identifier	Description
PROGRAM_SCRIPT	Script
PROGRAM_EXPERT	Expert
PROGRAM_INDICATOR	Indicator

ENUM_LICENSE_TYPE

Identifier	Description
LICENSE_FREE	A free unlimited version
LICENSE_DEMO	A trial version of a paid product from the Market. It works only in the strategy tester
LICENSE_FULL	A purchased licensed version allows at least 5 activations. The number of activations is specified by seller. Seller may increase the allowed number of activations
LICENSE_TIME	A version with limited term liсense

Example:

   ENUM_PROGRAM_TYPE mql_program=(ENUM_PROGRAM_TYPE)MQLInfoInteger(MQL_PROGRAM_TYPE);
   switch(mql_program)
     {
      case PROGRAM_SCRIPT:
        {
         Print(__FILE__+" is script");
         break;
        }
      case PROGRAM_EXPERT:
        {
         Print(__FILE__+" is Expert Advisor");
         break;
        }
      case PROGRAM_INDICATOR:
        {
         Print(__FILE__+" is custom indicator");
         break;
        }
      default:Print("MQL4 program type value is ",mql_program);
     }

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