[Haskell-cafe] A function callable from C

[John Ky]

Hi Stefan,

In that case, how do I marshall [String] to Ptr (Ptr CChar)?

Thanks

-John

On 2/6/07, Stefan O'Rear <stefanor at cox.net> wrote:
>
> You have to use a type that C's tiny brain understains. IANAWP
> but I'm guessing you want:
>
> type ServiceMainClosure = DWORD -> Ptr (Ptr CChar) -> IO ()
>
> foreign import ccall "wrapper"
>   mkServiceMainClosure :: ServiceMainClosure -> IO (FunPtr
> ServiceMainClosure)
>
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