![]() Runtime errors getting information about runtime and critical errors.Įxpert Advisors, custom indicators and scripts are attached to one of opened charts by Drag'n'Drop method from the Navigator window.įor an expert Advisor to stop operating, it should be removed from a chart.Call of imported functions description order, allowed parameters, search details and call agreement for imported functions.Client terminal events description of events, which can be processed in programs.Program running order of calling predefined event-handlers. ![]() Operating features of MQL4 programs are described in the following sections: At this process, an executable file with the same name and with EX4 extension must be created in the corresponding directory, terminal_dir\MQL4\Experts, terminal_dir\MQL4\indicators or terminal_dir\MQL4\scripts. Compilation should pass without errors (some warnings are possible they should be analyzed). For the mql4-program to operate, it must be compiled (Compile button or F7 key).
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