Re: [wxhaskell-users] Error using FFI with wxHaskell

[Henning T. <sch...@he...>]

Am 31.08.2014 um 06:48 schrieb Vivian McPhail:

> foreign import ccall unsafe "plot.cc gdk_get_drawable"
>          c_gdkGetDrawable :: DC a -> IO Gtk.DrawWindow

> How do I fix these errors?

You certainly need to use pointers, e.g. Ptr (DC a).