Routines (alphabetical) > Routines: H > HDF Routines > HDF_DFR8_GETINFO

# HDF_DFR8_GETINFO

The HDF_DFR8_GETINFO procedure retrieves information about the current 8-bit HDF image.

## Examples

; Open the file myhdf.hdf:

h = HDF_OPEN('myhdf.hdf')

; Retrieve info about an image:

HDF_DFR8_GETINFO, 'myhdf.hdf', width, height, has_palette

; Print info about returned variables:

HELP, width, height, has_palette

; Close the HDF file:

HDF_CLOSE('myhdf.hdf')

#### IDL Output

WIDTH LONG = 536

HEIGHT LONG = 412

HAS_PALETTE LONG = 1

For a more detailed example, see the file `hdf_info.pro`, located in the `examples/doc/sdf` subdirectory of the IDL distribution. Run the example procedure by entering `hdf_info` at the IDL command prompt or view the file in an IDL Editor window by entering `.EDIT hdf_info.pro`.

## Syntax

HDF_DFR8_GETINFO, Filename, Width, Height, Has_Palette

## Arguments

### Filename

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

### Width

A named variable in which the width of the image is returned.

### Height

A named variable in which the height of the image is returned.

### Has_Palette

A named variable in which 1 is returned if a palette is present. Otherwise, 0 is returned.

## Keywords

None

## Version History

4.0 | Introduced

## See Also

HDF_DFR8_GETIMAGE, HDF_DFR8_NIMAGES, HDF_DFR8_READREF, HDF_DFR8_RESTART