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Harris Geospatial / Docs Center / IDL Reference / I/O - HDF / HDF_DF24_NIMAGES

HDF_DF24_NIMAGES

HDF_DF24_NIMAGES

The HDF_DF24_NIMAGES function returns the number of 24-bit images in an HDF file.

Examples


; Open HDF file:
h = HDF_OPEN('myhdf.hdf')
; Return the number of 24-bit images in the file:
number = HDF_DF24_NIMAGES('myhdf.hdf')
; Print information about the returned value. If there were five
; images in the file, IDL would print NUMBER LONG = 5
HELP, number
; Close the HDF file:
HDF_CLOSE, h

Syntax


Result = HDF_DF24_NIMAGES(Filename)

Return Value


Returns the number of images in the file or -1 if the specified file is invalid or damaged

Arguments


Filename

A string containing the name of the file to be searched.

Keywords


None

Version History


4.0

Introduced

See Also


HDF_DF24_GETIMAGE, HDF_DF24_GETINFO, HDF_DF24_READREF, HDF_DF24_RESTART, HDF_DFR8_NIMAGES



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