MQL5 ReferenceStandard LibraryPanels and DialogsCAppDialogCreateInstanceId CreateDestroyOnEventRunChartEventMinimizedIniFileSaveIniFileLoadIniFileNameIniFileExtCreateCommonCreateExpertCreateIndicatorCreateButtonMinMaxOnClickButtonCloseOnClickButtonMinMaxOnAnotherApplicationCloseReboundMinimizeMaximizeCreateInstanceIdProgramNameSubwinOff CreateInstanceId Creates a unique prefix for the names of the control objects. string CreateInstanceId() Return Value Prefix for the object names. Maximize ProgramName