Routines (alphabetical) > Routines: H > HDF Routines > HDF_SD_END

# HDF_SD_END

The HDF_SD_END procedure closes the SD interface to an HDF file. Failure to close the file without a call to HDF_SD_END results in the loss of any changed or added SD data. Therefore, HDF_SD_END calls should always be paired with calls to HDF_SD_START. Before HDF_SD_END is called, all access to SD datasets should be terminated with calls to HDF_SD_ENDACCESS.

## Examples

; Open a new HDF file:

SDinterface_id = HDF_SD_START('test.hdf', /CREATE)

; Various commands could now be used to access SD data

; in the HDF file.

; When done with datasets, access should be ended with

; calls to HDF_SD_ENDACCESS:

HDF_SD_ENDACCESS, SDdataset_id_1

; When done with an HDF file, it should be closed:

HDF_SD_END, SDinterface_id

Another example can be seen in the documentation for HDF_SD_ATTRSET.

## Syntax

HDF_SD_END, SDinterface_id

## Arguments

### SDinterface_id

An SD interface ID as returned by HDF _SD_START.

## Keywords

None

## Version History

4.0 | Introduced

## See Also

HDF_CLOSE, HDF_OPEN, HDF_SD_ENDACCESS, HDF_SD_START