Sets our main struct and passes it to the parent class.
Attempts to create a new schema source corresponding to the contents of the given directory.
Get the main Gtk struct
the main Gtk struct as a void*
Lists the schemas in a given source.
Looks up a schema with the identifier @schema_id in @source.
Increase the reference count of @source, returning a new reference.
Decrease the reference count of @source, possibly freeing it.
Gets the default system schema source.
the main Gtk struct
This is an opaque structure type. You may not access it directly.