File identifier for specified object
file_id = H5I.get_file_id(obj_id)
file_id = H5I.get_file_id(obj_id) returns
the identifier of the file associated with the object referenced by obj_id.
fid = H5F.open('example.h5'); gid = H5G.open(fid,'/g4'); fid2 = H5I.get_file_id(gid); name = H5F.get_name(fid2); fprintf('The filename is %s.\n',name); H5G.close(gid); H5F.close(fid); H5F.close(fid2);