The ex4 file name does not point to the program typewhether it is a script, an EA, or an indicator. If a program needs to be modified, this should be done in its source code (a file of mq4 type) it should be edited and then compiled again. As a result of a source code compilation, a file of the same name with the extension ex4 is created.Ī file of ex4 type is a compiled program ready for practical use in the client terminal. A program must be compiled before you can use it. Files of mq4 type cannot be used for execution in the client terminal. When a code is fully or partially created, it can be saved and later opened for modification. For the creation of program codes, MetaEditor is used. Files of this type contain source texts of all types of programs (EAs, scripts, indicators). In MQL4, there are three types of files that carry a program code: mq4, ex4, and mqh.įiles of mq4 type represent a program source code. However, you cannot use programs located there. You can create other directories for storing some files. S cripts and indicators are in subdirectories ClientTerminal_folder\experts\scripts and ClientTerminal_folder \experts\indicators, respectively.įigure 24 Directory for storing files, created by a user. EAs are located right in the directory ClientTerminal_folder\experts. EAs, scripts, and custom indicators that you are going to use in your practical work should be located in corresponding directories, as shown in the Figure 24 following. The client terminal recognizes program types by their location in subordinate directories.Īll application programs are concentrated in the directory ClientTerminal_folder\experts.
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