This function saves the print settings from @settings to @file_name.
If the file could not be written then error is set to either a GFileError or GKeyFileError.
the file to save to
%TRUE on success
GException on failure.
See Implementation
This function saves the print settings from @settings to @file_name.
If the file could not be written then error is set to either a GFileError or GKeyFileError.