[Mono-devel-list] Problems calling unmanaged code
Ewen Cheslack-Postava
echeslack at gmail.com
Sun Aug 1 14:32:58 EDT 2004
Hello,
Thanks, that worked perfectly. Just for my understanding: Is there a
reason that you can't just pass the pointer? It is unsafe code and
the address is fixed, so I thought that would work. If it requires
deep understanding of how marshalling works, don't bother though b/c I
only sort of understand it.
Thanks,
Ewen Cheslack-Postava
On Sun, 01 Aug 2004 13:41:04 -0400, Ben Maurer <bmaurer at ximian.com> wrote:
> On Sun, 2004-08-01 at 12:48, Ewen Cheslack-Postava wrote:
> > [DllImport ("libgphoto2.so")]
> > internal static extern int gp_abilities_list_get_abilities
> > (_CameraAbilitiesList *list, int index, _CameraAbilities *abilities);
>
> Hello,
>
> You need to pass the struct as `out _CameraAbilities abilities'. You
> need the byref to get the marshaling you need, IIRC. CSC is actually not
> able to compile your code. I am going to file a bug on that in a minute.
> -- Ben
>
>
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