> > What's wrong with just doing this in the plain FFI?
>
> > foreign import ccall "getyx" getyx
> > :: Ptr Window -> Ptr CInt -> Ptr CInt -> IO ()
>
> > Have I missed something?
>
> You need at least one wrapper because getyx is a macro. Note that the
> arguments are ints _not_ int*s.
Aha! :-)
Then I would probably write a C wrapper with the above type.
Curious: how does green card know that getxy is a macro and that x and y
are out parameters... do you have to tell it?
Cheers,
Simon
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