module HROOT.Graf.TCanvas.Interface where
import Data.Word
import Foreign.C
import Foreign.Ptr
import Foreign.ForeignPtr
import FFICXX.Runtime.Cast
import HROOT.Graf.TCanvas.RawType
import HROOT.Graf.TPad.Interface
class (ITPad a) => ITCanvas a where
instance Existable TCanvas where
data Exist TCanvas = forall a. (FPtr a, ITCanvas a) => ETCanvas a
upcastTCanvas :: (FPtr a, ITCanvas a) => a -> TCanvas
upcastTCanvas h = let fh = get_fptr h
fh2 :: ForeignPtr RawTCanvas = castForeignPtr fh
in cast_fptr_to_obj fh2
downcastTCanvas :: (FPtr a, ITCanvas a) => TCanvas -> a
downcastTCanvas h = let fh = get_fptr h
fh2 = castForeignPtr fh
in cast_fptr_to_obj fh2