importing c++ data types to haskell with ffi
I'm writing a haskell wrapper for a c++ library and as much as I can import functions from the library to my haskell program, I have no clue how to import c++ data types. For instance I have a function which takes as a parameter a video::E_DRIVER_TYPE EDT_OPENGL type defined in some.h file, and as I said before I know how to import the function with ffi using
foreign import ccall ...
with the appropriate compiler-mangled function name
but I'm not able to call the function from haskell because I can't figure out how to import/use this specific video driver data type.
Now, I know that you can create types in Haskell but still I need a starting point as to what to define the type to whatever the c++ representation is. (I'm confused at this point)
I would appreciate any kind of help! Thanks
Calling C++ from Haskell is quite difficult; Haskell Wiki / Cxx foreign function interface lists some options.
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