I'm trying to get ImageMagick working under JNIWrapper, however I don't know how to debug what it is I am doing wrong. The message I get is:

magick/constitute.c:329: failed assertion `image_info->signature == MagickSignature'

Which I understand to mean that my structure doesn't match the structure of image_info. But I have no idea if it's a really in image_info, or in one of the structures inside of image_info (there are several). Any ideas on how to get past this?

I'd also like to see more example code or largers non-operating system libraries. For example in image_info the is a FILE * which I don't know how to map in the structure.. I used a Pointer for now.. at least until I can get past the assert.

Any help/ideas?

Thanks,

Barrie