a relative path to a filename to open and parse
%NULL-terminated array of directories to search
return location for a string containing the full path of the file, or %NULL
flags from #GKeyFileFlags
%TRUE if a key file could be loaded, %FALSE otherwise
GException on failure.
2.14
This function looks for a key file named @file in the paths specified in @search_dirs, loads the file into @key_file and returns the file's full path in @full_path.
If the file could not be found in any of the @search_dirs, %G_KEY_FILE_ERROR_NOT_FOUND is returned. If the file is found but the OS returns an error when opening or reading the file, a %G_FILE_ERROR is returned. If there is a problem parsing the file, a %G_KEY_FILE_ERROR is returned.