Gets the default system schema source.
This function is not required for normal uses of
GSettings but it
may be useful to authors of plugin management systems or to those who
want to introspect the content of schemas.
If no schemas are installed,
NULL will be returned.
The returned source may actually consist of multiple schema sources
from different directories, depending on which directories were given
GSETTINGS_SCHEMA_DIR. For this reason, all
lookups performed against the default source should probably be done recursively.
The default schema source.
|The data is owned by the called function.|
|The return value can be |