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H - H Advanced Interface
Happendable
Specifies that the specified element can be appended to
Hcache
Enables low-level caching for the specified file.
Hdeldd
Deletes a tag and reference number from the data descriptor list.
Hendaccess
Terminates access to a data object by disposing of the access identifier.
Hendbitaccess
Disposes of the specified bit-access file element.
Hexist
Locates an object in an HDF file.
Hfidinquire
Returns file information through a reference of its file identifier.
Hfind
Locates the next object to be searched for in an HDF file.
Hgetbit
Reads one bit from the specified bit-access element.
Hgetelement
Reads the data element for the specified tag and reference number and writes it to the data buffer.
Hinquire
Returns access information about a data element.
Hlength
Returns the length of a data object specified by the tag and reference number.
Hnewref
Returns a reference number that can be used with any tag to produce a unique tag /reference number pair.
Hnextread
Searches for the next data descriptor that matches the specified tag and reference number.
Hnumber/hnumber
Returns the number of instances of a tag in a file.
Hoffset
Returns the offset of a data element in the file.
Hputbit
Writes one bit to the specified bit-access element.
Hputelement
Writes a data element or replaces an existing data element in a HDF file.
Hread
Reads the next segment in a data element.
Hseek
Sets the access pointer to an offset within a data element.
Hsetlength
Specifies the length of a new HDF element.
Hshutdown
Deallocates buffers previously allocated in other H routines.
Htagnewref
Returns a reference number that is unique for the specified file that will correspond to the specified tag. Creates a new tag/reference number pair.
Htrunc
Truncates the data object specified by the h_id to the length trunc_len.
Hwrite
Writes the next data segment to a specified data element.
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hdfhelp@ncsa.uiuc.edu
HDF Reference Manual - 05/19/99, NCSA HDF Development Group.