Am 02.09.2014 um 09:25 schrieb Vivian McPhail: > I've tried using pointers (Ptr a) but (DC a) and (Gtk.DrawWindow) aren't > members of `Storable`.
I don't think there is any restriction to the type of the pointer target. Does GHC expect, that DC is Storable when you use an argument of type Ptr (DC a)? ------------------------------------------------------------------------------ Want excitement? Manually upgrade your production database. When you want reliability, choose Perforce Perforce version control. Predictably reliable. http://pubads.g.doubleclick.net/gampad/clk?id=157508191&iu=/4140/ostg.clktrk _______________________________________________ wxhaskell-users mailing list wxhaskell-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wxhaskell-users
