kdu_cache::set_tileheader_scope

Overrides kdu_compressed_source::set_tileheader_scope

See kdu_compressed_source::set_tileheader_scope for an explanation. Note that this function essentially just calls set_read_scope, passing in databin_class= KDU_HEADER_DATABIN and databin_id= tnum, while using the same code-stream identifier which was involved in the most recent call to set_read_scope. The function always returns true.

tnum [int]

num_tiles [int]