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9.3 The Palette API

 The DFP interface consists of eight routines. The routines DFPaddpal and DFPgetpal are the primary routines for palette I/O and are used for most reading and writing operations.

9.3.1 Palette Library Routines

All C functions in the palette interface are prefaced by "DFP" and the equivalent FORTRAN-77 functions are prefaced by "dp". These routines are divided into the following categories:

The DFP function calls are more explicitly defined in the following table and in the HDF Reference Guide.

TABLE 9A - DFP Library Routines

Category
Routine Names
Description
C
FORTRAN-77
Write
 DFPaddpal dpapal Appends a palette to a file.

DFPputpal dpppal Writes a palette to a file.

DFPwriteref dpwref Sets the reference number for writing the next palette.

Read
 DFPgetpal dpgpal Retrieves the next palette in a file.

DFPlastref dplref Returns the value of the last reference number read or written.

DFPnpals dpnpals Returns the number of palettes in a file.

DFPreadref dprref Sets reference number for retrieving the next palette.

DFPrestart dprest Specifies that the next read call will get the first palette in the file.


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HDF User's Guide - 07/21/98, NCSA HDF Development Group.