Your question is ambiguous.
If you mean that a variable is available across programs, then yes, use global variables of the terminal.
pascalboy:
Hi,
Is it possible to take variables from scripts,indicator or expert files for using in an other program(ea)?
Hi,
Is it possible to take variables from scripts,indicator or expert files for using in an other program(ea)?
No you cannot except for buffer values from Indicators, you can get these using iCustom().
You can pass data from Indicators, EAs and Scripts using GlobalVariables for numeric data not for strings or files for all variable types.

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Is it possible to take variables from scripts,indicator or expert files for using in an other program(ea)?