Hi,
I've tried using pointers (Ptr a) but (DC a) and (Gtk.DrawWindow) aren't
members of `Storable`.
On Linux WxWidgets is written on top of GTK and I am trying to access an
underlying Gtk.DrawWindow so that I can perform cairo rendering on that
window.
Any ideas?
Vivian
On 31 August 2014 19:33, Henning Thielemann <
schlepp...@henning-thielemann.de> wrote:
> 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).
>
>
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