gdk:paintable-snapshot-impl (paintable snapshot width height)

Method called from the gdk:paintable-snapshot function.

(defmethod paintable-snapshot-impl ((paintable paintable) snapshot width height)
  (error "Paintable of type ~a  does not implement GDK:PAINTABLE-SNAPSHOT-IMPL"
         (g:type-name (g:type-from-instance paintable))))    

This method must be implemented for a subclass which implements the gdk:paintable interface. The default implementation signals an error. See the gdk:paintable-snapshot function for the syntax. The gdk:paintable documentation shows a complete example of implementing the interface.