<!-- "$Id: api-filter.header 7616 2008-05-28 00:34:13Z mike $" Filter and backend programming header for CUPS. Copyright 2008-2011 by Apple Inc. These coded instructions, statements, and computer programs are the property of Apple Inc. and are protected by Federal copyright law. Distribution and use rights are outlined in the file "LICENSE.txt" which should have been included with this file. If this file is file is missing or damaged, see the license at "http://www.cups.org/". --> <h1 class='title'>Filter and Backend Programming</h1> <div class='summary'><table summary='General Information'> <thead> <tr> <th>Headers</th> <th>cups/backend.h<br> cups/sidechannel.h</th> </tr> </thead> <tbody> <tr> <th>Library</th> <td>-lcups</td> </tr> <tr> <th>See Also</th> <td>Programming: <a href='api-overview.html' target='_top'>Introduction to CUPS Programming</a><br> Programming: <a href='api-cups.html' target='_top'>CUPS API</a><br> Programming: <a href='api-ppd.html' target='_top'>PPD API</a><br> Programming: <a href='api-raster.html' target='_top'>Raster API</a><br> Programming: <a href='postscript-driver.html' target='_top'>Developing PostScript Printer Drivers</a><br> Programming: <a href='raster-driver.html' target='_top'>Developing Raster Printer Drivers</a><br> Specifications: <a href='spec-design.html' target='_top'>CUPS Design Description</a></td> </tr> </tbody> </table></div>