Reads the print settings from the group group_name in key_file. If the file could not be loaded then error is set to either a #GFileError or #GKeyFileError.
the #GKeyFile to retrieve the settings from
the name of the group to use, or null to use the default “Print Settings”
true on success
ErrorWrap
Reads the print settings from the group group_name in key_file. If the file could not be loaded then error is set to either a #GFileError or #GKeyFileError.