List of all availabe attributes in an exr file

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Hi,

we are currently implementing OpenEXR as an internal exchange/storage format for some processed medical images.
Since we need to store a variety of metadata (realized by storing several attributes) depending on the actual image type, we would like to query a list of attributes present in the file.
As far as I have seen, the implementation (version 2.0.1) does not provide a method for this, so my idea was to store an additional attribute (StringVector) which contains the available attributes and their static typename.
Any better ideas?

Cheers

Wolf



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