H5DOread_chunk

herr_t H5DOread_chunk(hid_t dset_id,  hid_t dxpl_id,  const  hsize_t *  offset,
                          uint *  filters,  void *  buf)

Reads a raw data chunk directly from a dataset.

This function reads a chunk of raw data directly from storage, bypassing the filter pipeline. The data is returned in its stored form (e.g., compressed if compression was applied during write).

Parameters

`dset_id`	Dataset identifier (must be chunked)
`dxpl_id`	Dataset transfer property list identifier
`offset`	Logical position of the chunk within the dataset
`filters`	Pointer to receive the filter mask (which filters were applied)
`buf`	Buffer to receive the chunk data

Returns

Non-negative on success, negative on failure.

Note

This is a compatibility wrapper. For HDF5 1.10.3+, use H5Dread_chunk directly.