On Sat, Apr 10, 2010 at 04:58:06PM -0700, Darren Warner wrote:
>
> I'm creating a vapi for libexif (using vala-gen-introspect) which
> includes a function that returns a structure:
>
> typedef struct {ExifLong numerator; ExifLong denominator; }ExifRational;
> ExifRational exif_get_rational (const unsigned char *b,
> ExifByteOrder order);
>
> If I don't alter ExifRational in my .metadata, the C compiler
> complains about assigning ExifRational to ExifRational * when I try
> to use the function.
>
> If I set ExifRational is_value_type="1", which I believe I should
> be, valac is generating an additional parameter (a pointer to a
> temporary ExifRational) when calling exif_get_rational() - of course
> the compiler complains at this also.
>
> This seems like a newbie question, but I've been unable to find any
> similar examples in the existing bindings, so any help would be
> appreciated.
I might be wrong but it looks like it's used like a simple type.
Try adding [SimpleType] to your struct binding, e.g.:
namespace Exif
{
[SimpleType]
public struct Rational
{
Long numerator;
Long denominator;
}
}
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