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Copyright 2008-2009 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'>Raster API</h1> <div class='summary'><table summary='General Information'> <thead> <tr> <th>Header</th> <th>cups/raster.h</th> </tr> </thead> <tbody> <tr> <th>Library</th> <td>-lcupsimage</td> </tr> <tr> <th>See Also</th> <td>Programming: <a href='api-overview.html'>Introduction to CUPS Programming</a><br> Programming: <a href='api-cups.html'>CUPS API</a><br> Programming: <a href='api-cups.html'>PPD API</a><br> References: <a href='spec-ppd.html'>CUPS PPD Specification</a></td> </tr> </tbody> </table></div> <h2 class="title">Contents</h2> <ul class="contents"> <ul class="subcontents"> <li><a href="#OVERVIEW">Overview</a></li> <li><a href="#TASKS">Functions by Task</a><ul class="subcontents"> <li><a href="#OPENCLOSE">Opening and Closing Raster Streams</a></li> <li><a href="#READING">Reading Raster Streams</a></li> <li><a href="#WRITING">Writing Raster Streams</a></li> </ul></li> <li><a href="#FUNCTIONS">Functions</a><ul class="code"> <li><a href="#cupsRasterClose" title="Close a raster stream.">cupsRasterClose</a></li> <li><a href="#cupsRasterInterpretPPD" title="Interpret PPD commands to create a page header.">cupsRasterInterpretPPD</a></li> <li><a href="#cupsRasterOpen" title="Open a raster stream.">cupsRasterOpen</a></li> <li><a href="#cupsRasterReadHeader" title="Read a raster page header and store it in a version 1 page header structure.">cupsRasterReadHeader</a></li> <li><a href="#cupsRasterReadHeader2" title="Read a raster page header and store it in a version 2 page header structure.">cupsRasterReadHeader2</a></li> <li><a href="#cupsRasterReadPixels" title="Read raster pixels.">cupsRasterReadPixels</a></li> <li><a href="#cupsRasterWriteHeader" title="Write a raster page header from a version 1 page header structure.">cupsRasterWriteHeader</a></li> <li><a href="#cupsRasterWriteHeader2" title="Write a raster page header from a version 2 page header structure.">cupsRasterWriteHeader2</a></li> <li><a href="#cupsRasterWritePixels" title="Write raster pixels.">cupsRasterWritePixels</a></li> </ul></li> <li><a href="#TYPES">Data Types</a><ul class="code"> <li><a href="#cups_adv_t" title="AdvanceMedia attribute values">cups_adv_t</a></li> <li><a href="#cups_bool_t" title="Boolean type">cups_bool_t</a></li> <li><a href="#cups_cspace_t" title="cupsColorSpace attribute values">cups_cspace_t</a></li> <li><a href="#cups_cut_t" title="CutMedia attribute values">cups_cut_t</a></li> <li><a href="#cups_edge_t" title="LeadingEdge attribute values">cups_edge_t</a></li> <li><a href="#cups_interpret_cb_t" title="cupsRasterInterpretPPD callback function">cups_interpret_cb_t</a></li> <li><a href="#cups_jog_t" title="Jog attribute values">cups_jog_t</a></li> <li><a href="#cups_mode_t" title="cupsRasterOpen modes">cups_mode_t</a></li> <li><a href="#cups_order_t" title="cupsColorOrder attribute values">cups_order_t</a></li> <li><a href="#cups_orient_t" title="Orientation attribute values">cups_orient_t</a></li> <li><a href="#cups_page_header2_t" title="Version 2 page header ">cups_page_header2_t</a></li> <li><a href="#cups_page_header_t" title="Version 1 page header ">cups_page_header_t</a></li> <li><a href="#cups_raster_t" title="Raster stream data">cups_raster_t</a></li> </ul></li> <li><a href="#STRUCTURES">Structures</a><ul class="code"> <li><a href="#cups_page_header2_s" title="Version 2 page header ">cups_page_header2_s</a></li> <li><a href="#cups_page_header_s" title="Version 1 page header ">cups_page_header_s</a></li> </ul></li> <li><a href="#ENUMERATIONS">Constants</a><ul class="code"> <li><a href="#cups_adv_e" title="AdvanceMedia attribute values">cups_adv_e</a></li> <li><a href="#cups_bool_e" title="Boolean type">cups_bool_e</a></li> <li><a href="#cups_cspace_e" title="cupsColorSpace attribute values">cups_cspace_e</a></li> <li><a href="#cups_cut_e" title="CutMedia attribute values">cups_cut_e</a></li> <li><a href="#cups_edge_e" title="LeadingEdge attribute values">cups_edge_e</a></li> <li><a href="#cups_jog_e" title="Jog attribute values">cups_jog_e</a></li> <li><a href="#cups_mode_e" title="cupsRasterOpen modes">cups_mode_e</a></li> <li><a href="#cups_order_e" title="cupsColorOrder attribute values">cups_order_e</a></li> <li><a href="#cups_orient_e" title="Orientation attribute values">cups_orient_e</a></li> </ul></li> <!-- "$Id$" Raster API introduction for the Common UNIX Printing System (CUPS). Copyright 2007-2008 by Apple Inc. Copyright 1997-2006 by Easy Software Products, all rights reserved. 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/". --> <h2 class='title'><a name="OVERVIEW">Overview</a></h2> <p>The CUPS raster API provides a standard interface for reading and writing CUPS raster streams which are used for printing to raster printers. Because the raster format is updated from time to time, it is important to use this API to avoid incompatibilities with newer versions of CUPS.</p> <p>Two kinds of CUPS filters use the CUPS raster API - raster image processor (RIP) filters such as <code>pstoraster</code> and <code>cgpdftoraster</code> (Mac OS X) that produce CUPS raster files and printer driver filters that convert CUPS raster files into a format usable by the printer. Printer driver filters are by far the most common.</p> <p>CUPS raster files (<code>application/vnd.cups-raster</code>) consists of a stream of raster page descriptions produced by one of the RIP filters such as <var>pstoraster</var>, <var>imagetoraster</var>, or <var>cgpdftoraster</var>. CUPS raster files are referred to using the <a href='#cups_raster_t'><code>cups_raster_t</code></a> type and are opened using the <a href='#cupsRasterOpen'><code>cupsRasterOpen</code></a> function. For example, to read raster data from the standard input, open file descriptor 0:</p> <pre class="example"> #include <cups/raster.h>> <a href="#cups_raster_t">cups_raster_t</a> *ras = <a href="#cupsRasterOpen">cupsRasterOpen</a>(0, CUPS_RASTER_READ); </pre> <p>Each page of data begins with a page dictionary structure called <a href="#cups_page_header2_t"><code>cups_page_header2_t</code></a>. This structure contains the colorspace, bits per color, media size, media type, hardware resolution, and so forth used for the page.</p> <blockquote><b>Note:</b> <p>Do not confuse the colorspace in the page header with the PPD <tt>ColorModel</tt> keyword. <tt>ColorModel</tt> refers to the general type of color used for a device (Gray, RGB, CMYK, DeviceN) and is often used to select a particular colorspace for the page header along with the associate color profile. The page header colorspace (<tt>cupsColorSpace</tt>) describes both the type and organization of the color data, for example KCMY (black first) instead of CMYK and RGBA (RGB + alpha) instead of RGB.</p> </blockquote> <p>You read the page header using the <a href="#cupsRasterReadHeader2"><code>cupsRasterReadHeader2</code></a> function:</p> <pre class="example"> #include <cups/raster.h>> <a href="#cups_raster_t">cups_raster_t</a> *ras = <a href="#cupsRasterOpen">cupsRasterOpen</a>(0, CUPS_RASTER_READ); <a href="#cups_page_header2_t">cups_page_header2_t</a> header; while (<a href="#cupsRasterReadHeader2">cupsRasterReadHeader2</a>(ras, &header)) { /* setup this page */ /* read raster data */ /* finish this page */ } </pre> <p>After the page dictionary comes the page data which is a full-resolution, possibly compressed bitmap representing the page in the printer's output colorspace. You read uncompressed raster data using the <a href="#cupsRasterReadPixels"><code>cupsRasterReadPixels</code></a> function. A <code>for</code> loop is normally used to read the page one line at a time:</p> <pre class="example"> #include <cups/raster.h>> <a href="#cups_raster_t">cups_raster_t</a> *ras = <a href="#cupsRasterOpen">cupsRasterOpen</a>(0, CUPS_RASTER_READ); <a href="#cups_page_header2_t">cups_page_header2_t</a> header; int page = 0; int y; char *buffer; while (<a href="#cupsRasterReadHeader2">cupsRasterReadHeader2</a>(ras, &header)) { /* setup this page */ page ++; fprintf(stderr, "PAGE: %d %d\n", page, header.NumCopies); /* allocate memory for 1 line */ buffer = malloc(header.cupsBytesPerLine); /* read raster data */ for (y = 0; y < header.cupsHeight; y ++) { if (<a href="#cupsRasterReadPixels">cupsRasterReadPixels</a>(ras, buffer, header.cupsBytesPerLine) == 0) break; /* write raster data to printer on stdout */ } /* finish this page */ } </pre> <p>When you are done reading the raster data, call the <a href="#cupsRasterClose"><code>cupsRasterClose</code></a> function to free the memory used to read the raster file:</p> <pre class="example"> <a href="#cups_raster_t">cups_raster_t</a> *ras; <a href="#cupsRasterClose">cupsRasterClose</a>(ras); </pre> <h2 class='title'><a name="TASKS">Functions by Task</a></h2> <h3><a name="OPENCLOSE">Opening and Closing Raster Streams</a></h3> <ul class="code"> <li><a href="#cupsRasterClose" title="Close a raster stream.">cupsRasterClose</a></li> <li><a href="#cupsRasterOpen" title="Open a raster stream.">cupsRasterOpen</a></li> </ul> <h3><a name="READING">Reading Raster Streams</a></h3> <ul class="code"> <li><a href="#cupsRasterReadHeader" title="Read a raster page header and store it in a version 1 page header structure.">cupsRasterReadHeader</a> <span class="info">Deprecated in CUPS 1.2/Mac OS X 10.5</span></li> <li><a href="#cupsRasterReadHeader2" title="Read a raster page header and store it in a version 2 page header structure.">cupsRasterReadHeader2</a></li> <li><a href="#cupsRasterReadPixels" title="Read raster pixels.">cupsRasterReadPixels</a></li> </ul> <h3><a name="WRITING">Writing Raster Streams</a></h3> <ul class="code"> <li><a href="#cupsRasterInterpretPPD" title="Interpret PPD commands to create a page header.">cupsRasterInterpretPPD</a></li> <li><a href="#cupsRasterWriteHeader" title="Write a raster page header from a version 1 page header structure.">cupsRasterWriteHeader</a> <span class="info">Deprecated in CUPS 1.2/Mac OS X 10.5</span></li> <li><a href="#cupsRasterWriteHeader2" title="Write a raster page header from a version 2 page header structure.">cupsRasterWriteHeader2</a></li> <li><a href="#cupsRasterWritePixels" title="Write raster pixels.">cupsRasterWritePixels</a></li> </ul> <h2 class="title"><a name="FUNCTIONS">Functions</a></h2> <h3 class="function"><a name="cupsRasterClose">cupsRasterClose</a></h3> <p class="description">Close a raster stream.</p> <p class="code"> void cupsRasterClose (<br> <a href="#cups_raster_t">cups_raster_t</a> *r<br> );</p> <h4 class="parameters">Parameters</h4> <dl> <dt>r</dt> <dd class="description">Stream to close</dd> </dl> <h4 class="discussion">Discussion</h4> <p class="discussion">The file descriptor associated with the raster stream must be closed separately as needed.</p> <h3 class="function"><span class="info"> CUPS 1.2/Mac OS X 10.5 </span><a name="cupsRasterInterpretPPD">cupsRasterInterpretPPD</a></h3> <p class="description">Interpret PPD commands to create a page header.</p> <p class="code"> int cupsRasterInterpretPPD (<br> <a href="#cups_page_header2_t">cups_page_header2_t</a> *h,<br> ppd_file_t *ppd,<br> int num_options,<br> cups_option_t *options,<br> <a href="#cups_interpret_cb_t">cups_interpret_cb_t</a> func<br> );</p> <h4 class="parameters">Parameters</h4> <dl> <dt>h</dt> <dd class="description">Page header to create</dd> <dt>ppd</dt> <dd class="description">PPD file</dd> <dt>num_options</dt> <dd class="description">Number of options</dd> <dt>options</dt> <dd class="description">Options</dd> <dt>func</dt> <dd class="description">Optional page header callback (<code>NULL</code> for none)</dd> </dl> <h4 class="returnvalue">Return Value</h4> <p class="description">0 on success, -1 on failure</p> <h4 class="discussion">Discussion</h4> <p class="discussion">This function is used by raster image processing (RIP) filters like cgpdftoraster and imagetoraster when writing CUPS raster data for a page. It is not used by raster printer driver filters which only read CUPS raster data.<br> <br> <code>cupsRasterInterpretPPD</code> does not mark the options in the PPD using the "num_options" and "options" arguments. Instead, mark the options with <code>cupsMarkOptions</code> and <code>ppdMarkOption</code> prior to calling it - this allows for per-page options without manipulating the options array.<br> <br> The "func" argument specifies an optional callback function that is called prior to the computation of the final raster data. The function can make changes to the <a href="#cups_page_header2_t"><code>cups_page_header2_t</code></a> data as needed to use a supported raster format and then returns 0 on success and -1 if the requested attributes cannot be supported.<br> <br> <code>cupsRasterInterpretPPD</code> supports a subset of the PostScript language. Currently only the <code>[</code>, <code>]</code>, <code><<</code>, <code>>></code>, <code>{</code>, <code>}</code>, <code>cleartomark</code>, <code>copy</code>, <code>dup</code>, <code>index</code>, <code>pop</code>, <code>roll</code>, <code>setpagedevice</code>, and <code>stopped</code> operators are supported. </p> <h3 class="function"><a name="cupsRasterOpen">cupsRasterOpen</a></h3> <p class="description">Open a raster stream.</p> <p class="code"> <a href="#cups_raster_t">cups_raster_t</a> *cupsRasterOpen (<br> int fd,<br> <a href="#cups_mode_t">cups_mode_t</a> mode<br> );</p> <h4 class="parameters">Parameters</h4> <dl> <dt>fd</dt> <dd class="description">File descriptor</dd> <dt>mode</dt> <dd class="description">Mode - <code>CUPS_RASTER_READ</code>, <code>CUPS_RASTER_WRITE</code>, or <code>CUPS_RASTER_WRITE_COMPRESSED</code></dd> </dl> <h4 class="returnvalue">Return Value</h4> <p class="description">New stream</p> <h4 class="discussion">Discussion</h4> <p class="discussion">This function associates a raster stream with the given file descriptor. For most printer driver filters, "fd" will be 0 (stdin). For most raster image processor (RIP) filters that generate raster data, "fd" will be 1 (stdout).<br> <br> When writing raster data, the <code>CUPS_RASTER_WRITE</code> or <code>CUPS_RASTER_WRITE_COMPRESS</code> mode can be used - compressed output is generally 25-50% smaller but adds a 100-300% execution time overhead.</p> <h3 class="function"><span class="info"> DEPRECATED </span><a name="cupsRasterReadHeader">cupsRasterReadHeader</a></h3> <p class="description">Read a raster page header and store it in a version 1 page header structure.</p> <p class="code"> unsigned cupsRasterReadHeader (<br> <a href="#cups_raster_t">cups_raster_t</a> *r,<br> <a href="#cups_page_header_t">cups_page_header_t</a> *h<br> );</p> <h4 class="parameters">Parameters</h4> <dl> <dt>r</dt> <dd class="description">Raster stream</dd> <dt>h</dt> <dd class="description">Pointer to header data</dd> </dl> <h4 class="returnvalue">Return Value</h4> <p class="description">1 on success, 0 on failure/end-of-file</p> <h4 class="discussion">Discussion</h4> <p class="discussion">This function is deprecated. Use <a href="#cupsRasterReadHeader2"><code>cupsRasterReadHeader2</code></a> instead.<br> <br> Version 1 page headers were used in CUPS 1.0 and 1.1 and contain a subset of the version 2 page header data. This function handles reading version 2 page headers and copying only the version 1 data into the provided buffer. </p> <h3 class="function"><span class="info"> CUPS 1.2/Mac OS X 10.5 </span><a name="cupsRasterReadHeader2">cupsRasterReadHeader2</a></h3> <p class="description">Read a raster page header and store it in a version 2 page header structure.</p> <p class="code"> unsigned cupsRasterReadHeader2 (<br> <a href="#cups_raster_t">cups_raster_t</a> *r,<br> <a href="#cups_page_header2_t">cups_page_header2_t</a> *h<br> );</p> <h4 class="parameters">Parameters</h4> <dl> <dt>r</dt> <dd class="description">Raster stream</dd> <dt>h</dt> <dd class="description">Pointer to header data</dd> </dl> <h4 class="returnvalue">Return Value</h4> <p class="description">1 on success, 0 on failure/end-of-file</p> <h3 class="function"><a name="cupsRasterReadPixels">cupsRasterReadPixels</a></h3> <p class="description">Read raster pixels.</p> <p class="code"> unsigned cupsRasterReadPixels (<br> <a href="#cups_raster_t">cups_raster_t</a> *r,<br> unsigned char *p,<br> unsigned len<br> );</p> <h4 class="parameters">Parameters</h4> <dl> <dt>r</dt> <dd class="description">Raster stream</dd> <dt>p</dt> <dd class="description">Pointer to pixel buffer</dd> <dt>len</dt> <dd class="description">Number of bytes to read</dd> </dl> <h4 class="returnvalue">Return Value</h4> <p class="description">Number of bytes read</p> <h4 class="discussion">Discussion</h4> <p class="discussion">For best performance, filters should read one or more whole lines. The "cupsBytesPerLine" value from the page header can be used to allocate the line buffer and as the number of bytes to read.</p> <h3 class="function"><span class="info"> DEPRECATED </span><a name="cupsRasterWriteHeader">cupsRasterWriteHeader</a></h3> <p class="description">Write a raster page header from a version 1 page header structure.</p> <p class="code"> unsigned cupsRasterWriteHeader (<br> <a href="#cups_raster_t">cups_raster_t</a> *r,<br> <a href="#cups_page_header_t">cups_page_header_t</a> *h<br> );</p> <h4 class="parameters">Parameters</h4> <dl> <dt>r</dt> <dd class="description">Raster stream</dd> <dt>h</dt> <dd class="description">Raster page header</dd> </dl> <h4 class="returnvalue">Return Value</h4> <p class="description">1 on success, 0 on failure</p> <h4 class="discussion">Discussion</h4> <p class="discussion">This function is deprecated. Use <a href="#cupsRasterWriteHeader2"><code>cupsRasterWriteHeader2</code></a> instead. </p> <h3 class="function"><span class="info"> CUPS 1.2/Mac OS X 10.5 </span><a name="cupsRasterWriteHeader2">cupsRasterWriteHeader2</a></h3> <p class="description">Write a raster page header from a version 2 page header structure.</p> <p class="code"> unsigned cupsRasterWriteHeader2 (<br> <a href="#cups_raster_t">cups_raster_t</a> *r,<br> <a href="#cups_page_header2_t">cups_page_header2_t</a> *h<br> );</p> <h4 class="parameters">Parameters</h4> <dl> <dt>r</dt> <dd class="description">Raster stream</dd> <dt>h</dt> <dd class="description">Raster page header</dd> </dl> <h4 class="returnvalue">Return Value</h4> <p class="description">1 on success, 0 on failure</p> <h4 class="discussion">Discussion</h4> <p class="discussion">The page header can be initialized using <a href="#cupsRasterInterpretPPD"><code>cupsRasterInterpretPPD</code></a>. </p> <h3 class="function"><a name="cupsRasterWritePixels">cupsRasterWritePixels</a></h3> <p class="description">Write raster pixels.</p> <p class="code"> unsigned cupsRasterWritePixels (<br> <a href="#cups_raster_t">cups_raster_t</a> *r,<br> unsigned char *p,<br> unsigned len<br> );</p> <h4 class="parameters">Parameters</h4> <dl> <dt>r</dt> <dd class="description">Raster stream</dd> <dt>p</dt> <dd class="description">Bytes to write</dd> <dt>len</dt> <dd class="description">Number of bytes to write</dd> </dl> <h4 class="returnvalue">Return Value</h4> <p class="description">Number of bytes written</p> <h4 class="discussion">Discussion</h4> <p class="discussion">For best performance, filters should write one or more whole lines. The "cupsBytesPerLine" value from the page header can be used to allocate the line buffer and as the number of bytes to write.</p> <h2 class="title"><a name="TYPES">Data Types</a></h2> <h3 class="typedef"><a name="cups_adv_t">cups_adv_t</a></h3> <p class="description">AdvanceMedia attribute values</p> <p class="code"> typedef enum <a href="#cups_adv_e">cups_adv_e</a> cups_adv_t; </p> <h3 class="typedef"><a name="cups_bool_t">cups_bool_t</a></h3> <p class="description">Boolean type</p> <p class="code"> typedef enum <a href="#cups_bool_e">cups_bool_e</a> cups_bool_t; </p> <h3 class="typedef"><a name="cups_cspace_t">cups_cspace_t</a></h3> <p class="description">cupsColorSpace attribute values</p> <p class="code"> typedef enum <a href="#cups_cspace_e">cups_cspace_e</a> cups_cspace_t; </p> <h3 class="typedef"><a name="cups_cut_t">cups_cut_t</a></h3> <p class="description">CutMedia attribute values</p> <p class="code"> typedef enum <a href="#cups_cut_e">cups_cut_e</a> cups_cut_t; </p> <h3 class="typedef"><a name="cups_edge_t">cups_edge_t</a></h3> <p class="description">LeadingEdge attribute values</p> <p class="code"> typedef enum <a href="#cups_edge_e">cups_edge_e</a> cups_edge_t; </p> <h3 class="typedef"><a name="cups_interpret_cb_t">cups_interpret_cb_t</a></h3> <p class="description">cupsRasterInterpretPPD callback function</p> <p class="code"> typedef int (*cups_interpret_cb_t)(<a href="#cups_page_header2_t">cups_page_header2_t</a> *header, int preferred_bits); </p> <h3 class="typedef"><a name="cups_jog_t">cups_jog_t</a></h3> <p class="description">Jog attribute values</p> <p class="code"> typedef enum <a href="#cups_jog_e">cups_jog_e</a> cups_jog_t; </p> <h3 class="typedef"><a name="cups_mode_t">cups_mode_t</a></h3> <p class="description">cupsRasterOpen modes</p> <p class="code"> typedef enum <a href="#cups_mode_e">cups_mode_e</a> cups_mode_t; </p> <h3 class="typedef"><a name="cups_order_t">cups_order_t</a></h3> <p class="description">cupsColorOrder attribute values</p> <p class="code"> typedef enum <a href="#cups_order_e">cups_order_e</a> cups_order_t; </p> <h3 class="typedef"><a name="cups_orient_t">cups_orient_t</a></h3> <p class="description">Orientation attribute values</p> <p class="code"> typedef enum <a href="#cups_orient_e">cups_orient_e</a> cups_orient_t; </p> <h3 class="typedef"><span class="info"> CUPS 1.2/Mac OS X 10.5 </span><a name="cups_page_header2_t">cups_page_header2_t</a></h3> <p class="description">Version 2 page header </p> <p class="code"> typedef struct <a href="#cups_page_header2_s">cups_page_header2_s</a> cups_page_header2_t; </p> <h3 class="typedef"><span class="info"> DEPRECATED </span><a name="cups_page_header_t">cups_page_header_t</a></h3> <p class="description">Version 1 page header </p> <p class="code"> typedef struct <a href="#cups_page_header_s">cups_page_header_s</a> cups_page_header_t; </p> <h3 class="typedef"><a name="cups_raster_t">cups_raster_t</a></h3> <p class="description">Raster stream data</p> <p class="code"> typedef struct _cups_raster_s cups_raster_t; </p> <h2 class="title"><a name="STRUCTURES">Structures</a></h2> <h3 class="struct"><span class="info"> CUPS 1.2/Mac OS X 10.5 </span><a name="cups_page_header2_s">cups_page_header2_s</a></h3> <p class="description">Version 2 page header </p> <p class="code">struct cups_page_header2_s {<br> unsigned AdvanceDistance;<br> <a href="#cups_adv_t">cups_adv_t</a> AdvanceMedia;<br> <a href="#cups_bool_t">cups_bool_t</a> Collate;<br> <a href="#cups_cut_t">cups_cut_t</a> CutMedia;<br> <a href="#cups_bool_t">cups_bool_t</a> Duplex;<br> unsigned HWResolution[2];<br> unsigned ImagingBoundingBox[4];<br> <a href="#cups_bool_t">cups_bool_t</a> InsertSheet;<br> <a href="#cups_jog_t">cups_jog_t</a> Jog;<br> <a href="#cups_edge_t">cups_edge_t</a> LeadingEdge;<br> <a href="#cups_bool_t">cups_bool_t</a> ManualFeed;<br> unsigned Margins[2];<br> char MediaClass[64];<br> char MediaColor[64];<br> unsigned MediaPosition;<br> char MediaType[64];<br> unsigned MediaWeight;<br> <a href="#cups_bool_t">cups_bool_t</a> MirrorPrint;<br> <a href="#cups_bool_t">cups_bool_t</a> NegativePrint;<br> unsigned NumCopies;<br> <a href="#cups_orient_t">cups_orient_t</a> Orientation;<br> <a href="#cups_bool_t">cups_bool_t</a> OutputFaceUp;<br> char OutputType[64];<br> unsigned PageSize[2];<br> <a href="#cups_bool_t">cups_bool_t</a> Separations;<br> <a href="#cups_bool_t">cups_bool_t</a> TraySwitch;<br> <a href="#cups_bool_t">cups_bool_t</a> Tumble;<br> unsigned cupsBitsPerColor;<br> unsigned cupsBitsPerPixel;<br> float cupsBorderlessScalingFactor;<br> unsigned cupsBytesPerLine;<br> <a href="#cups_order_t">cups_order_t</a> cupsColorOrder;<br> <a href="#cups_cspace_t">cups_cspace_t</a> cupsColorSpace;<br> unsigned cupsCompression;<br> unsigned cupsHeight;<br> float cupsImagingBBox[4];<br> unsigned cupsInteger[16];<br> char cupsMarkerType[64];<br> unsigned cupsMediaType;<br> unsigned cupsNumColors;<br> char cupsPageSizeName[64];<br> float cupsPageSize[2];<br> float cupsReal[16];<br> char cupsRenderingIntent[64];<br> unsigned cupsRowCount;<br> unsigned cupsRowFeed;<br> unsigned cupsRowStep;<br> char cupsString[16][64];<br> unsigned cupsWidth;<br> };</p> <h4 class="members">Members</h4> <dl> <dt>AdvanceDistance </dt> <dd class="description">AdvanceDistance value in points</dd> <dt>AdvanceMedia </dt> <dd class="description">AdvanceMedia value (<a href="#cups_adv_t"><code>cups_adv_t</code></a>)</dd> <dt>Collate </dt> <dd class="description">Collated copies value</dd> <dt>CutMedia </dt> <dd class="description">CutMedia value (<a href="#cups_cut_t"><code>cups_cut_t</code></a>)</dd> <dt>Duplex </dt> <dd class="description">Duplexed (double-sided) value</dd> <dt>HWResolution[2] </dt> <dd class="description">Resolution in dots-per-inch</dd> <dt>ImagingBoundingBox[4] </dt> <dd class="description">Pixel region that is painted (points, left, bottom, right, top)</dd> <dt>InsertSheet </dt> <dd class="description">InsertSheet value</dd> <dt>Jog </dt> <dd class="description">Jog value (<a href="#cups_jog_t"><code>cups_jog_t</code></a>)</dd> <dt>LeadingEdge </dt> <dd class="description">LeadingEdge value (<a href="#cups_edge_t"><code>cups_edge_t</code></a>)</dd> <dt>ManualFeed </dt> <dd class="description">ManualFeed value</dd> <dt>Margins[2] </dt> <dd class="description">Lower-lefthand margins in points</dd> <dt>MediaClass[64] </dt> <dd class="description">MediaClass string</dd> <dt>MediaColor[64] </dt> <dd class="description">MediaColor string</dd> <dt>MediaPosition </dt> <dd class="description">MediaPosition value</dd> <dt>MediaType[64] </dt> <dd class="description">MediaType string</dd> <dt>MediaWeight </dt> <dd class="description">MediaWeight value in grams/m^2</dd> <dt>MirrorPrint </dt> <dd class="description">MirrorPrint value</dd> <dt>NegativePrint </dt> <dd class="description">NegativePrint value</dd> <dt>NumCopies </dt> <dd class="description">Number of copies to produce</dd> <dt>Orientation </dt> <dd class="description">Orientation value (<a href="#cups_orient_t"><code>cups_orient_t</code></a>)</dd> <dt>OutputFaceUp </dt> <dd class="description">OutputFaceUp value</dd> <dt>OutputType[64] </dt> <dd class="description">OutputType string</dd> <dt>PageSize[2] </dt> <dd class="description">Width and length of page in points</dd> <dt>Separations </dt> <dd class="description">Separations value</dd> <dt>TraySwitch </dt> <dd class="description">TraySwitch value</dd> <dt>Tumble </dt> <dd class="description">Tumble value</dd> <dt>cupsBitsPerColor </dt> <dd class="description">Number of bits for each color</dd> <dt>cupsBitsPerPixel </dt> <dd class="description">Number of bits for each pixel</dd> <dt>cupsBorderlessScalingFactor <span class="info"> CUPS 1.2/Mac OS X 10.5 </span></dt> <dd class="description">Scaling that was applied to page data </dd> <dt>cupsBytesPerLine </dt> <dd class="description">Number of bytes per line</dd> <dt>cupsColorOrder </dt> <dd class="description">Order of colors</dd> <dt>cupsColorSpace </dt> <dd class="description">True colorspace</dd> <dt>cupsCompression </dt> <dd class="description">Device compression to use</dd> <dt>cupsHeight </dt> <dd class="description">Height of page image in pixels</dd> <dt>cupsImagingBBox[4] <span class="info"> CUPS 1.2/Mac OS X 10.5 </span></dt> <dd class="description">Floating point ImagingBoundingBox (scaling factor not applied, left, bottom, right, top) </dd> <dt>cupsInteger[16] <span class="info"> CUPS 1.2/Mac OS X 10.5 </span></dt> <dd class="description">User-defined integer values </dd> <dt>cupsMarkerType[64] <span class="info"> CUPS 1.2/Mac OS X 10.5 </span></dt> <dd class="description">Ink/toner type </dd> <dt>cupsMediaType </dt> <dd class="description">Media type code</dd> <dt>cupsNumColors <span class="info"> CUPS 1.2/Mac OS X 10.5 </span></dt> <dd class="description">Number of color compoents </dd> <dt>cupsPageSizeName[64] <span class="info"> CUPS 1.2/Mac OS X 10.5 </span></dt> <dd class="description">PageSize name </dd> <dt>cupsPageSize[2] <span class="info"> CUPS 1.2/Mac OS X 10.5 </span></dt> <dd class="description">Floating point PageSize (scaling * factor not applied) </dd> <dt>cupsReal[16] <span class="info"> CUPS 1.2/Mac OS X 10.5 </span></dt> <dd class="description">User-defined floating-point values </dd> <dt>cupsRenderingIntent[64] <span class="info"> CUPS 1.2/Mac OS X 10.5 </span></dt> <dd class="description">Color rendering intent </dd> <dt>cupsRowCount </dt> <dd class="description">Rows per band</dd> <dt>cupsRowFeed </dt> <dd class="description">Feed between bands</dd> <dt>cupsRowStep </dt> <dd class="description">Spacing between lines</dd> <dt>cupsString[16][64] <span class="info"> CUPS 1.2/Mac OS X 10.5 </span></dt> <dd class="description">User-defined string values </dd> <dt>cupsWidth </dt> <dd class="description">Width of page image in pixels</dd> </dl> <h3 class="struct"><span class="info"> DEPRECATED </span><a name="cups_page_header_s">cups_page_header_s</a></h3> <p class="description">Version 1 page header </p> <p class="code">struct cups_page_header_s {<br> unsigned AdvanceDistance;<br> <a href="#cups_adv_t">cups_adv_t</a> AdvanceMedia;<br> <a href="#cups_bool_t">cups_bool_t</a> Collate;<br> <a href="#cups_cut_t">cups_cut_t</a> CutMedia;<br> <a href="#cups_bool_t">cups_bool_t</a> Duplex;<br> unsigned HWResolution[2];<br> unsigned ImagingBoundingBox[4];<br> <a href="#cups_bool_t">cups_bool_t</a> InsertSheet;<br> <a href="#cups_jog_t">cups_jog_t</a> Jog;<br> <a href="#cups_edge_t">cups_edge_t</a> LeadingEdge;<br> <a href="#cups_bool_t">cups_bool_t</a> ManualFeed;<br> unsigned Margins[2];<br> char MediaClass[64];<br> char MediaColor[64];<br> unsigned MediaPosition;<br> char MediaType[64];<br> unsigned MediaWeight;<br> <a href="#cups_bool_t">cups_bool_t</a> MirrorPrint;<br> <a href="#cups_bool_t">cups_bool_t</a> NegativePrint;<br> unsigned NumCopies;<br> <a href="#cups_orient_t">cups_orient_t</a> Orientation;<br> <a href="#cups_bool_t">cups_bool_t</a> OutputFaceUp;<br> char OutputType[64];<br> unsigned PageSize[2];<br> <a href="#cups_bool_t">cups_bool_t</a> Separations;<br> <a href="#cups_bool_t">cups_bool_t</a> TraySwitch;<br> <a href="#cups_bool_t">cups_bool_t</a> Tumble;<br> unsigned cupsBitsPerColor;<br> unsigned cupsBitsPerPixel;<br> unsigned cupsBytesPerLine;<br> <a href="#cups_order_t">cups_order_t</a> cupsColorOrder;<br> <a href="#cups_cspace_t">cups_cspace_t</a> cupsColorSpace;<br> unsigned cupsCompression;<br> unsigned cupsHeight;<br> unsigned cupsMediaType;<br> unsigned cupsRowCount;<br> unsigned cupsRowFeed;<br> unsigned cupsRowStep;<br> unsigned cupsWidth;<br> };</p> <h4 class="members">Members</h4> <dl> <dt>AdvanceDistance </dt> <dd class="description">AdvanceDistance value in points</dd> <dt>AdvanceMedia </dt> <dd class="description">AdvanceMedia value (<a href="#cups_adv_t"><code>cups_adv_t</code></a>)</dd> <dt>Collate </dt> <dd class="description">Collated copies value</dd> <dt>CutMedia </dt> <dd class="description">CutMedia value (<a href="#cups_cut_t"><code>cups_cut_t</code></a>)</dd> <dt>Duplex </dt> <dd class="description">Duplexed (double-sided) value</dd> <dt>HWResolution[2] </dt> <dd class="description">Resolution in dots-per-inch</dd> <dt>ImagingBoundingBox[4] </dt> <dd class="description">Pixel region that is painted (points, left, bottom, right, top)</dd> <dt>InsertSheet </dt> <dd class="description">InsertSheet value</dd> <dt>Jog </dt> <dd class="description">Jog value (<a href="#cups_jog_t"><code>cups_jog_t</code></a>)</dd> <dt>LeadingEdge </dt> <dd class="description">LeadingEdge value (<a href="#cups_edge_t"><code>cups_edge_t</code></a>)</dd> <dt>ManualFeed </dt> <dd class="description">ManualFeed value</dd> <dt>Margins[2] </dt> <dd class="description">Lower-lefthand margins in points</dd> <dt>MediaClass[64] </dt> <dd class="description">MediaClass string</dd> <dt>MediaColor[64] </dt> <dd class="description">MediaColor string</dd> <dt>MediaPosition </dt> <dd class="description">MediaPosition value</dd> <dt>MediaType[64] </dt> <dd class="description">MediaType string</dd> <dt>MediaWeight </dt> <dd class="description">MediaWeight value in grams/m^2</dd> <dt>MirrorPrint </dt> <dd class="description">MirrorPrint value</dd> <dt>NegativePrint </dt> <dd class="description">NegativePrint value</dd> <dt>NumCopies </dt> <dd class="description">Number of copies to produce</dd> <dt>Orientation </dt> <dd class="description">Orientation value (<a href="#cups_orient_t"><code>cups_orient_t</code></a>)</dd> <dt>OutputFaceUp </dt> <dd class="description">OutputFaceUp value</dd> <dt>OutputType[64] </dt> <dd class="description">OutputType string</dd> <dt>PageSize[2] </dt> <dd class="description">Width and length of page in points</dd> <dt>Separations </dt> <dd class="description">Separations value</dd> <dt>TraySwitch </dt> <dd class="description">TraySwitch value</dd> <dt>Tumble </dt> <dd class="description">Tumble value</dd> <dt>cupsBitsPerColor </dt> <dd class="description">Number of bits for each color</dd> <dt>cupsBitsPerPixel </dt> <dd class="description">Number of bits for each pixel</dd> <dt>cupsBytesPerLine </dt> <dd class="description">Number of bytes per line</dd> <dt>cupsColorOrder </dt> <dd class="description">Order of colors</dd> <dt>cupsColorSpace </dt> <dd class="description">True colorspace</dd> <dt>cupsCompression </dt> <dd class="description">Device compression to use</dd> <dt>cupsHeight </dt> <dd class="description">Height of page image in pixels</dd> <dt>cupsMediaType </dt> <dd class="description">Media type code</dd> <dt>cupsRowCount </dt> <dd class="description">Rows per band</dd> <dt>cupsRowFeed </dt> <dd class="description">Feed between bands</dd> <dt>cupsRowStep </dt> <dd class="description">Spacing between lines</dd> <dt>cupsWidth </dt> <dd class="description">Width of page image in pixels</dd> </dl> <h2 class="title"><a name="ENUMERATIONS">Constants</a></h2> <h3 class="enumeration"><a name="cups_adv_e">cups_adv_e</a></h3> <p class="description">AdvanceMedia attribute values</p> <h4 class="constants">Constants</h4> <dl> <dt>CUPS_ADVANCE_FILE </dt> <dd class="description">Advance the roll after this file</dd> <dt>CUPS_ADVANCE_JOB </dt> <dd class="description">Advance the roll after this job</dd> <dt>CUPS_ADVANCE_NONE </dt> <dd class="description">Never advance the roll</dd> <dt>CUPS_ADVANCE_PAGE </dt> <dd class="description">Advance the roll after this page</dd> <dt>CUPS_ADVANCE_SET </dt> <dd class="description">Advance the roll after this set</dd> </dl> <h3 class="enumeration"><a name="cups_bool_e">cups_bool_e</a></h3> <p class="description">Boolean type</p> <h4 class="constants">Constants</h4> <dl> <dt>CUPS_FALSE </dt> <dd class="description">Logical false</dd> <dt>CUPS_TRUE </dt> <dd class="description">Logical true</dd> </dl> <h3 class="enumeration"><a name="cups_cspace_e">cups_cspace_e</a></h3> <p class="description">cupsColorSpace attribute values</p> <h4 class="constants">Constants</h4> <dl> <dt>CUPS_CSPACE_CIELab <span class="info"> CUPS 1.1.19/Mac OS X 10.3 </span></dt> <dd class="description">CIE Lab </dd> <dt>CUPS_CSPACE_CIEXYZ <span class="info"> CUPS 1.1.19/Mac OS X 10.3 </span></dt> <dd class="description">CIE XYZ </dd> <dt>CUPS_CSPACE_CMY </dt> <dd class="description">Cyan, magenta, yellow</dd> <dt>CUPS_CSPACE_CMYK </dt> <dd class="description">Cyan, magenta, yellow, black</dd> <dt>CUPS_CSPACE_GMCK </dt> <dd class="description">Gold, magenta, yellow, black</dd> <dt>CUPS_CSPACE_GMCS </dt> <dd class="description">Gold, magenta, yellow, silver</dd> <dt>CUPS_CSPACE_GOLD </dt> <dd class="description">Gold foil</dd> <dt>CUPS_CSPACE_ICC1 <span class="info"> CUPS 1.1.19/Mac OS X 10.3 </span></dt> <dd class="description">ICC-based, 1 color </dd> <dt>CUPS_CSPACE_ICC2 <span class="info"> CUPS 1.1.19/Mac OS X 10.3 </span></dt> <dd class="description">ICC-based, 2 colors </dd> <dt>CUPS_CSPACE_ICC3 <span class="info"> CUPS 1.1.19/Mac OS X 10.3 </span></dt> <dd class="description">ICC-based, 3 colors </dd> <dt>CUPS_CSPACE_ICC4 <span class="info"> CUPS 1.1.19/Mac OS X 10.3 </span></dt> <dd class="description">ICC-based, 4 colors </dd> <dt>CUPS_CSPACE_ICC5 <span class="info"> CUPS 1.1.19/Mac OS X 10.3 </span></dt> <dd class="description">ICC-based, 5 colors </dd> <dt>CUPS_CSPACE_ICC6 <span class="info"> CUPS 1.1.19/Mac OS X 10.3 </span></dt> <dd class="description">ICC-based, 6 colors </dd> <dt>CUPS_CSPACE_ICC7 <span class="info"> CUPS 1.1.19/Mac OS X 10.3 </span></dt> <dd class="description">ICC-based, 7 colors </dd> <dt>CUPS_CSPACE_ICC8 <span class="info"> CUPS 1.1.19/Mac OS X 10.3 </span></dt> <dd class="description">ICC-based, 8 colors </dd> <dt>CUPS_CSPACE_ICC9 <span class="info"> CUPS 1.1.19/Mac OS X 10.3 </span></dt> <dd class="description">ICC-based, 9 colors </dd> <dt>CUPS_CSPACE_ICCA <span class="info"> CUPS 1.1.19/Mac OS X 10.3 </span></dt> <dd class="description">ICC-based, 10 colors </dd> <dt>CUPS_CSPACE_ICCB <span class="info"> CUPS 1.1.19/Mac OS X 10.3 </span></dt> <dd class="description">ICC-based, 11 colors </dd> <dt>CUPS_CSPACE_ICCC <span class="info"> CUPS 1.1.19/Mac OS X 10.3 </span></dt> <dd class="description">ICC-based, 12 colors </dd> <dt>CUPS_CSPACE_ICCD <span class="info"> CUPS 1.1.19/Mac OS X 10.3 </span></dt> <dd class="description">ICC-based, 13 colors </dd> <dt>CUPS_CSPACE_ICCE <span class="info"> CUPS 1.1.19/Mac OS X 10.3 </span></dt> <dd class="description">ICC-based, 14 colors </dd> <dt>CUPS_CSPACE_ICCF <span class="info"> CUPS 1.1.19/Mac OS X 10.3 </span></dt> <dd class="description">ICC-based, 15 colors </dd> <dt>CUPS_CSPACE_K </dt> <dd class="description">Black</dd> <dt>CUPS_CSPACE_KCMY </dt> <dd class="description">Black, cyan, magenta, yellow</dd> <dt>CUPS_CSPACE_KCMYcm </dt> <dd class="description">Black, cyan, magenta, yellow, * light-cyan, light-magenta</dd> <dt>CUPS_CSPACE_RGB </dt> <dd class="description">Red, green, blue</dd> <dt>CUPS_CSPACE_RGBA </dt> <dd class="description">Red, green, blue, alpha</dd> <dt>CUPS_CSPACE_RGBW <span class="info"> CUPS 1.2/Mac OS X 10.5 </span></dt> <dd class="description">Red, green, blue, white </dd> <dt>CUPS_CSPACE_SILVER </dt> <dd class="description">Silver foil</dd> <dt>CUPS_CSPACE_W </dt> <dd class="description">Luminance</dd> <dt>CUPS_CSPACE_WHITE </dt> <dd class="description">White ink (as black)</dd> <dt>CUPS_CSPACE_YMC </dt> <dd class="description">Yellow, magenta, cyan</dd> <dt>CUPS_CSPACE_YMCK </dt> <dd class="description">Yellow, magenta, cyan, black</dd> </dl> <h3 class="enumeration"><a name="cups_cut_e">cups_cut_e</a></h3> <p class="description">CutMedia attribute values</p> <h4 class="constants">Constants</h4> <dl> <dt>CUPS_CUT_FILE </dt> <dd class="description">Cut the roll after this file</dd> <dt>CUPS_CUT_JOB </dt> <dd class="description">Cut the roll after this job</dd> <dt>CUPS_CUT_NONE </dt> <dd class="description">Never cut the roll</dd> <dt>CUPS_CUT_PAGE </dt> <dd class="description">Cut the roll after this page</dd> <dt>CUPS_CUT_SET </dt> <dd class="description">Cut the roll after this set</dd> </dl> <h3 class="enumeration"><a name="cups_edge_e">cups_edge_e</a></h3> <p class="description">LeadingEdge attribute values</p> <h4 class="constants">Constants</h4> <dl> <dt>CUPS_EDGE_BOTTOM </dt> <dd class="description">Leading edge is the bottom of the page</dd> <dt>CUPS_EDGE_LEFT </dt> <dd class="description">Leading edge is the left of the page</dd> <dt>CUPS_EDGE_RIGHT </dt> <dd class="description">Leading edge is the right of the page</dd> <dt>CUPS_EDGE_TOP </dt> <dd class="description">Leading edge is the top of the page</dd> </dl> <h3 class="enumeration"><a name="cups_jog_e">cups_jog_e</a></h3> <p class="description">Jog attribute values</p> <h4 class="constants">Constants</h4> <dl> <dt>CUPS_JOG_FILE </dt> <dd class="description">Move pages after this file</dd> <dt>CUPS_JOG_JOB </dt> <dd class="description">Move pages after this job</dd> <dt>CUPS_JOG_NONE </dt> <dd class="description">Never move pages</dd> <dt>CUPS_JOG_SET </dt> <dd class="description">Move pages after this set</dd> </dl> <h3 class="enumeration"><a name="cups_mode_e">cups_mode_e</a></h3> <p class="description">cupsRasterOpen modes</p> <h4 class="constants">Constants</h4> <dl> <dt>CUPS_RASTER_READ </dt> <dd class="description">Open stream for reading</dd> <dt>CUPS_RASTER_WRITE </dt> <dd class="description">Open stream for writing</dd> <dt>CUPS_RASTER_WRITE_COMPRESSED <span class="info"> CUPS 1.3/Mac OS X 10.5 </span></dt> <dd class="description">Open stream for compressed writing </dd> </dl> <h3 class="enumeration"><a name="cups_order_e">cups_order_e</a></h3> <p class="description">cupsColorOrder attribute values</p> <h4 class="constants">Constants</h4> <dl> <dt>CUPS_ORDER_BANDED </dt> <dd class="description">CCC MMM YYY KKK ...</dd> <dt>CUPS_ORDER_CHUNKED </dt> <dd class="description">CMYK CMYK CMYK ...</dd> <dt>CUPS_ORDER_PLANAR </dt> <dd class="description">CCC ... MMM ... YYY ... KKK ...</dd> </dl> <h3 class="enumeration"><a name="cups_orient_e">cups_orient_e</a></h3> <p class="description">Orientation attribute values</p> <h4 class="constants">Constants</h4> <dl> <dt>CUPS_ORIENT_0 </dt> <dd class="description">Don't rotate the page</dd> <dt>CUPS_ORIENT_180 </dt> <dd class="description">Turn the page upside down</dd> <dt>CUPS_ORIENT_270 </dt> <dd class="description">Rotate the page clockwise</dd> <dt>CUPS_ORIENT_90 </dt> <dd class="description">Rotate the page counter-clockwise</dd> </dl> </div> </body> </html>