Sets source as the source object used for creating property bindings. If there is already a source object all bindings from it will be removed.
Note that all properties that have been bound must exist on source.
the source #GObject, or null to clear it
Sets source as the source object used for creating property bindings. If there is already a source object all bindings from it will be removed.
Note that all properties that have been bound must exist on source.