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

# HDF_GR_GETLUTID

This function gets the identifier of the HDF GR palette attached to the raster image identified by the parameter ri_id.

## Syntax

Result = HDF_GR_GETLUTID(ri_id, pal_index)

## Return Value

Returns the palette identifier if successful or FAIL (-1) otherwise.

## Arguments

### ri_id

Raster image identifier returned by HDF_GR_CREATE or HDF_GR_SELECT.

### pal_index

Index of the palette. Currently, only one palette can be assigned to a raster image, which means that pal_index should always be set to 0.

## Keywords

None

## Version History

5.2 | Introduced