This procedure returns the drawable's type as if had an alphachannel. If the type is currently Gray, for instance, the returnedtype would be GrayA. If the drawable already has an alpha channel,the drawable's type is simply returned.
This procedure returns the drawable's type as if had an alphachannel. If the type is currently Gray, for instance, the returnedtype would be GrayA. If the drawable already has an alpha channel,the drawable's type is simply returned.