Hello, I have created, using h2xs and a bit of modification, a working module that exports the functions found in a vendor supplied API to Perl. The XS worked up and the C compiled, all libraries and headers are in place and up to date, and all functions work from a C only program. However when I call a function from Perl, I get -1 returned, and $!== "Function Not Implemented". This has been killing me, I can't find any info, and I was wondering if anyone has experienced this. It could just not be me, but I've started from scratch 3 times now, and it's a relatively simple XS job. Thank you. Campbell

In reply to PerlXS - Function not implemented by cb921

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