Hi Quincey,
Thanks for the quick response. Not sure how I missed that J. I'm a newbie on HDF5 and still finding my way. My work computers off till Monday for an office move but I'll be able to try it then. Cheers Andy From: [email protected] [mailto:[email protected]] On Behalf Of Quincey Koziol Sent: 24 July 2010 06:01 To: HDF Users Discussion List Subject: Re: [Hdf-forum] Opaque Dataset elements Hi Andy, On Jul 23, 2010, at 5:38 PM, Andy wrote: I'm trying to get the size of an opaque dataset element so that I can allocate the buf before doing the H5Dread().Is there a way to do this? Each element in the dataset should have a different size as it's just a 1 dimensional array of blobs... I could switch from opaque to vlen strings if that would be better, or perhaps write the size out in an attribute... but I'm surely missing something... there must be a way... Any help appreciated... It's late and I haven't checked the docs, but I would think that H5Tget_size() should give you what you want. Quincey
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