SysRestoreRetains

This function of type DINT can be used to to restore the values of retain variables, which have been saved in a file (see SysSaveRetains). One of the following values will be returned:

1: OK

0: No program loaded

-1: The given file could not be opened

-2: The content of the file exceeds the size of the retain area

Input Variable	Data type	Description
stFileName	STRING	Name of the file which contains the retain variables (see SysSaveRetains)