iflPPM(3)

NAME
     iflPPM - PPM file format

HEADER FILE
     #include <ifl/iflPPM.h>

DESCRIPTION
     This IFL format provides support for reading and writing image files with
     the Portable Bitmap format (PPM). This file format is suitable for
     archiving multicolor and monochromatic image data. It includes the
     formats PPM, PGM, PBM, PNM, RPPM, RPGM, RPBM, and RPNM.

     The default extensions for image files in the PPM format are '.ppm', When
     you create a file with one of these extensions IFL will assume you want
     the PPM format, unless you override it with the iflFormat parameter.

     In addition to all the standard iflFile methods, this format supprts an
     number of format specific operations via the getItem() and setItem()
     methods.  The tag values supported by theses methods are enumerated in
     the following sections.

TAG VALUES FOR GET ITEM
     The followng tag values are supported with getItem():

   iflPPMwriteASCII
          iflStatus getItem(iflPPMwriteASCII, int* on)


     This function returns TRUE in 'on' if ASCII output is enabled; FALSE
     otherwise.

TAG VALUES FOR SET ITEM
     The followng tag values are supported with setItem():

   iflPPMwriteASCII
          iflStatus setItem(iflPPMwriteASCII, int on)


     This function can be used to enable ASCII output while writing a PPM
     file, by setting 'on' = TRUE.