doc/help/api-raster.html

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 341 <body>
 342 <div class='body'>
 343 <!--
 344   "$Id$"
 345
 346   Raster API documentation for CUPS.
 347
 348   Copyright 2008-2010 by Apple Inc.
 349
 350   These coded instructions, statements, and computer programs are the
 351   property of Apple Inc. and are protected by Federal copyright
 352   law.  Distribution and use rights are outlined in the file "LICENSE.txt"
 353   which should have been included with this file.  If this file is
 354   file is missing or damaged, see the license at "http://www.cups.org/".
 355 -->
 356
 357 <h1 class='title'>Raster API</h1>
 358
 359 <div class='summary'><table summary='General Information'>
 360 <thead>
 361 <tr>
 362         <th>Header</th>
 363         <th>cups/raster.h</th>
 364 </tr>
 365 </thead>
 366 <tbody>
 367 <tr>
 368         <th>Library</th>
 369         <td>-lcupsimage</td>
 370 </tr>
 371 <tr>
 372         <th>See Also</th>
 373         <td>Programming: <a href='api-overview.html'>Introduction to CUPS Programming</a><br>
 374         Programming: <a href='api-cups.html'>CUPS API</a><br>
 375         Programming: <a href='api-cups.html'>PPD API</a><br>
 376         References: <a href='spec-ppd.html'>CUPS PPD Specification</a></td>
 377 </tr>
 378 </tbody>
 379 </table></div>
 380 <h2 class="title">Contents</h2>
 381 <ul class="contents">
 382 <li><a href="#OVERVIEW">Overview</a></li>
 383 <li><a href="#TASKS">Functions by Task</a><ul class="subcontents">
 384         <li><a href="#OPENCLOSE">Opening and Closing Raster Streams</a></li>
 385         <li><a href="#READING">Reading Raster Streams</a></li>
 386         <li><a href="#WRITING">Writing Raster Streams</a></li>
 387 </ul></li>
 388 <li><a href="#FUNCTIONS">Functions</a><ul class="code">
 389         <li><a href="#cupsRasterClose" title="Close a raster stream.">cupsRasterClose</a></li>
 390         <li><a href="#cupsRasterInterpretPPD" title="Interpret PPD commands to create a page header.">cupsRasterInterpretPPD</a></li>
 391         <li><a href="#cupsRasterOpen" title="Open a raster stream using a file descriptor.">cupsRasterOpen</a></li>
 392         <li><a href="#cupsRasterOpenIO" title="Open a raster stream using a callback function.">cupsRasterOpenIO</a></li>
 393         <li><a href="#cupsRasterReadHeader" title="Read a raster page header and store it in a
 394 version 1 page header structure.">cupsRasterReadHeader</a></li>
 395         <li><a href="#cupsRasterReadHeader2" title="Read a raster page header and store it in a
 396 version 2 page header structure.">cupsRasterReadHeader2</a></li>
 397         <li><a href="#cupsRasterReadPixels" title="Read raster pixels.">cupsRasterReadPixels</a></li>
 398         <li><a href="#cupsRasterWriteHeader" title="Write a raster page header from a version 1 page
 399 header structure.">cupsRasterWriteHeader</a></li>
 400         <li><a href="#cupsRasterWriteHeader2" title="Write a raster page header from a version 2
 401 page header structure.">cupsRasterWriteHeader2</a></li>
 402         <li><a href="#cupsRasterWritePixels" title="Write raster pixels.">cupsRasterWritePixels</a></li>
 403 </ul></li>
 404 <li><a href="#TYPES">Data Types</a><ul class="code">
 405         <li><a href="#cups_adv_t" title="AdvanceMedia attribute values">cups_adv_t</a></li>
 406         <li><a href="#cups_bool_t" title="Boolean type">cups_bool_t</a></li>
 407         <li><a href="#cups_cspace_t" title="cupsColorSpace attribute values">cups_cspace_t</a></li>
 408         <li><a href="#cups_cut_t" title="CutMedia attribute values">cups_cut_t</a></li>
 409         <li><a href="#cups_edge_t" title="LeadingEdge attribute values">cups_edge_t</a></li>
 410         <li><a href="#cups_interpret_cb_t" title="cupsRasterInterpretPPD callback function">cups_interpret_cb_t</a></li>
 411         <li><a href="#cups_jog_t" title="Jog attribute values">cups_jog_t</a></li>
 412         <li><a href="#cups_mode_t" title="cupsRasterOpen modes">cups_mode_t</a></li>
 413         <li><a href="#cups_order_t" title="cupsColorOrder attribute values">cups_order_t</a></li>
 414         <li><a href="#cups_orient_t" title="Orientation attribute values">cups_orient_t</a></li>
 415         <li><a href="#cups_page_header2_t" title="Version 2 page header ">cups_page_header2_t</a></li>
 416         <li><a href="#cups_page_header_t" title="Version 1 page header ">cups_page_header_t</a></li>
 417         <li><a href="#cups_raster_iocb_t" title="cupsRasterOpenIO callback function">cups_raster_iocb_t</a></li>
 418         <li><a href="#cups_raster_t" title="Raster stream data">cups_raster_t</a></li>
 419 </ul></li>
 420 <li><a href="#STRUCTURES">Structures</a><ul class="code">
 421         <li><a href="#cups_page_header2_s" title="Version 2 page header ">cups_page_header2_s</a></li>
 422         <li><a href="#cups_page_header_s" title="Version 1 page header ">cups_page_header_s</a></li>
 423 </ul></li>
 424 <li><a href="#ENUMERATIONS">Constants</a><ul class="code">
 425         <li><a href="#cups_adv_e" title="AdvanceMedia attribute values">cups_adv_e</a></li>
 426         <li><a href="#cups_bool_e" title="Boolean type">cups_bool_e</a></li>
 427         <li><a href="#cups_cspace_e" title="cupsColorSpace attribute values">cups_cspace_e</a></li>
 428         <li><a href="#cups_cut_e" title="CutMedia attribute values">cups_cut_e</a></li>
 429         <li><a href="#cups_edge_e" title="LeadingEdge attribute values">cups_edge_e</a></li>
 430         <li><a href="#cups_jog_e" title="Jog attribute values">cups_jog_e</a></li>
 431         <li><a href="#cups_mode_e" title="cupsRasterOpen modes">cups_mode_e</a></li>
 432         <li><a href="#cups_order_e" title="cupsColorOrder attribute values">cups_order_e</a></li>
 433         <li><a href="#cups_orient_e" title="Orientation attribute values">cups_orient_e</a></li>
 434 </ul></li>
 435 </ul>
 436 <!--
 437   "$Id$"
 438
 439   Raster API introduction for the Common UNIX Printing System (CUPS).
 440
 441   Copyright 2007-2008 by Apple Inc.
 442   Copyright 1997-2006 by Easy Software Products, all rights reserved.
 443
 444   These coded instructions, statements, and computer programs are the
 445   property of Apple Inc. and are protected by Federal copyright
 446   law.  Distribution and use rights are outlined in the file "LICENSE.txt"
 447   which should have been included with this file.  If this file is
 448   file is missing or damaged, see the license at "http://www.cups.org/".
 449 -->
 450
 451 <h2 class='title'><a name="OVERVIEW">Overview</a></h2>
 452
 453 <p>The CUPS raster API provides a standard interface for reading and writing
 454 CUPS raster streams which are used for printing to raster printers. Because the
 455 raster format is updated from time to time, it is important to use this API to
 456 avoid incompatibilities with newer versions of CUPS.</p>
 457
 458 <p>Two kinds of CUPS filters use the CUPS raster API - raster image processor
 459 (RIP) filters such as <code>pstoraster</code> and <code>cgpdftoraster</code>
 460 (Mac OS X) that produce CUPS raster files and printer driver filters that
 461 convert CUPS raster files into a format usable by the printer. Printer
 462 driver filters are by far the most common.</p>
 463
 464 <p>CUPS raster files (<code>application/vnd.cups-raster</code>) consists of
 465 a stream of raster page descriptions produced by one of the RIP filters such as
 466 <var>pstoraster</var>, <var>imagetoraster</var>, or
 467 <var>cgpdftoraster</var>. CUPS raster files are referred to using the
 468 <a href='#cups_raster_t'><code>cups_raster_t</code></a> type and are
 469 opened using the <a href='#cupsRasterOpen'><code>cupsRasterOpen</code></a>
 470 function. For example, to read raster data from the standard input, open
 471 file descriptor 0:</p>
 472
 473 <pre class="example">
 474 #include &lt;cups/raster.h&gt;>
 475
 476 <a href="#cups_raster_t">cups_raster_t</a> *ras = <a href="#cupsRasterOpen">cupsRasterOpen</a>(0, CUPS_RASTER_READ);
 477 </pre>
 478
 479 <p>Each page of data begins with a page dictionary structure called
 480 <a href="#cups_page_header2_t"><code>cups_page_header2_t</code></a>. This
 481 structure contains the colorspace, bits per color, media size, media type,
 482 hardware resolution, and so forth used for the page.</p>
 483
 484 <blockquote><b>Note:</b>
 485
 486   <p>Do not confuse the colorspace in the page header with the PPD
 487   <tt>ColorModel</tt> keyword. <tt>ColorModel</tt> refers to the general type of
 488   color used for a device (Gray, RGB, CMYK, DeviceN) and is often used to
 489   select a particular colorspace for the page header along with the associate
 490   color profile. The page header colorspace (<tt>cupsColorSpace</tt>) describes
 491   both the type and organization of the color data, for example KCMY (black
 492   first) instead of CMYK and RGBA (RGB + alpha) instead of RGB.</p>
 493
 494 </blockquote>
 495
 496 <p>You read the page header using the
 497 <a href="#cupsRasterReadHeader2"><code>cupsRasterReadHeader2</code></a>
 498 function:</p>
 499
 500 <pre class="example">
 501 #include &lt;cups/raster.h&gt;>
 502
 503 <a href="#cups_raster_t">cups_raster_t</a> *ras = <a href="#cupsRasterOpen">cupsRasterOpen</a>(0, CUPS_RASTER_READ);
 504 <a href="#cups_page_header2_t">cups_page_header2_t</a> header;
 505
 506 while (<a href="#cupsRasterReadHeader2">cupsRasterReadHeader2</a>(ras, &amp;header))
 507 {
 508   /* setup this page */
 509
 510   /* read raster data */
 511
 512   /* finish this page */
 513 }
 514 </pre>
 515
 516 <p>After the page dictionary comes the page data which is a full-resolution,
 517 possibly compressed bitmap representing the page in the printer's output
 518 colorspace. You read uncompressed raster data using the
 519 <a href="#cupsRasterReadPixels"><code>cupsRasterReadPixels</code></a>
 520 function. A <code>for</code> loop is normally used to read the page one line
 521 at a time:</p>
 522
 523 <pre class="example">
 524 #include &lt;cups/raster.h&gt;>
 525
 526 <a href="#cups_raster_t">cups_raster_t</a> *ras = <a href="#cupsRasterOpen">cupsRasterOpen</a>(0, CUPS_RASTER_READ);
 527 <a href="#cups_page_header2_t">cups_page_header2_t</a> header;
 528 int page = 0;
 529 int y;
 530 char *buffer;
 531
 532 while (<a href="#cupsRasterReadHeader2">cupsRasterReadHeader2</a>(ras, &amp;header))
 533 {
 534   /* setup this page */
 535   page ++;
 536   fprintf(stderr, "PAGE: %d %d\n", page, header.NumCopies);
 537
 538   /* allocate memory for 1 line */
 539   buffer = malloc(header.cupsBytesPerLine);
 540
 541   /* read raster data */
 542   for (y = 0; y &lt; header.cupsHeight; y ++)
 543   {
 544     if (<a href="#cupsRasterReadPixels">cupsRasterReadPixels</a>(ras, buffer, header.cupsBytesPerLine) == 0)
 545       break;
 546
 547     /* write raster data to printer on stdout */
 548   }
 549
 550   /* finish this page */
 551 }
 552 </pre>
 553
 554 <p>When you are done reading the raster data, call the
 555 <a href="#cupsRasterClose"><code>cupsRasterClose</code></a> function to free
 556 the memory used to read the raster file:</p>
 557
 558 <pre class="example">
 559 <a href="#cups_raster_t">cups_raster_t</a> *ras;
 560
 561 <a href="#cupsRasterClose">cupsRasterClose</a>(ras);
 562 </pre>
 563
 564
 565 <h2 class='title'><a name="TASKS">Functions by Task</a></h2>
 566
 567 <h3><a name="OPENCLOSE">Opening and Closing Raster Streams</a></h3>
 568
 569 <ul class="code">
 570
 571         <li><a href="#cupsRasterClose" title="Close a raster stream.">cupsRasterClose</a></li>
 572         <li><a href="#cupsRasterOpen" title="Open a raster stream.">cupsRasterOpen</a></li>
 573
 574 </ul>
 575
 576 <h3><a name="READING">Reading Raster Streams</a></h3>
 577
 578 <ul class="code">
 579
 580         <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>
 581         <li><a href="#cupsRasterReadHeader2" title="Read a raster page header and store it in a version 2 page header structure.">cupsRasterReadHeader2</a></li>
 582         <li><a href="#cupsRasterReadPixels" title="Read raster pixels.">cupsRasterReadPixels</a></li>
 583
 584 </ul>
 585
 586 <h3><a name="WRITING">Writing Raster Streams</a></h3>
 587
 588 <ul class="code">
 589
 590         <li><a href="#cupsRasterInterpretPPD" title="Interpret PPD commands to create a page header.">cupsRasterInterpretPPD</a></li>
 591         <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>
 592         <li><a href="#cupsRasterWriteHeader2" title="Write a raster page header from a version 2 page header structure.">cupsRasterWriteHeader2</a></li>
 593         <li><a href="#cupsRasterWritePixels" title="Write raster pixels.">cupsRasterWritePixels</a></li>
 594
 595 </ul>
 596 <h2 class="title"><a name="FUNCTIONS">Functions</a></h2>
 597 <h3 class="function"><a name="cupsRasterClose">cupsRasterClose</a></h3>
 598 <p class="description">Close a raster stream.</p>
 599 <p class="code">
 600 void cupsRasterClose (<br>
 601 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_raster_t">cups_raster_t</a> *r<br>
 602 );</p>
 603 <h4 class="parameters">Parameters</h4>
 604 <dl>
 605 <dt>r</dt>
 606 <dd class="description">Stream to close</dd>
 607 </dl>
 608 <h4 class="discussion">Discussion</h4>
 609 <p class="discussion">The file descriptor associated with the raster stream must be closed
 610 separately as needed.</p>
 611 <h3 class="function"><span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span><a name="cupsRasterInterpretPPD">cupsRasterInterpretPPD</a></h3>
 612 <p class="description">Interpret PPD commands to create a page header.</p>
 613 <p class="code">
 614 int cupsRasterInterpretPPD (<br>
 615 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_page_header2_t">cups_page_header2_t</a> *h,<br>
 616 &nbsp;&nbsp;&nbsp;&nbsp;ppd_file_t *ppd,<br>
 617 &nbsp;&nbsp;&nbsp;&nbsp;int num_options,<br>
 618 &nbsp;&nbsp;&nbsp;&nbsp;cups_option_t *options,<br>
 619 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_interpret_cb_t">cups_interpret_cb_t</a> func<br>
 620 );</p>
 621 <h4 class="parameters">Parameters</h4>
 622 <dl>
 623 <dt>h</dt>
 624 <dd class="description">Page header to create</dd>
 625 <dt>ppd</dt>
 626 <dd class="description">PPD file</dd>
 627 <dt>num_options</dt>
 628 <dd class="description">Number of options</dd>
 629 <dt>options</dt>
 630 <dd class="description">Options</dd>
 631 <dt>func</dt>
 632 <dd class="description">Optional page header callback (<code>NULL</code> for none)</dd>
 633 </dl>
 634 <h4 class="returnvalue">Return Value</h4>
 635 <p class="description">0 on success, -1 on failure</p>
 636 <h4 class="discussion">Discussion</h4>
 637 <p class="discussion">This function is used by raster image processing (RIP) filters like
 638 cgpdftoraster and imagetoraster when writing CUPS raster data for a page.
 639 It is not used by raster printer driver filters which only read CUPS
 640 raster data.<br>
 641 <br>
 642
 643 <code>cupsRasterInterpretPPD</code> does not mark the options in the PPD using
 644 the &quot;num_options&quot; and &quot;options&quot; arguments.  Instead, mark the options with
 645 <code>cupsMarkOptions</code> and <code>ppdMarkOption</code> prior to calling it -
 646 this allows for per-page options without manipulating the options array.<br>
 647 <br>
 648 The &quot;func&quot; argument specifies an optional callback function that is
 649 called prior to the computation of the final raster data.  The function
 650 can make changes to the <a href="#cups_page_header2_t"><code>cups_page_header2_t</code></a> data as needed to use a
 651 supported raster format and then returns 0 on success and -1 if the
 652 requested attributes cannot be supported.<br>
 653 <br>
 654
 655 <code>cupsRasterInterpretPPD</code> supports a subset of the PostScript language.
 656 Currently only the <code>[</code>, <code>]</code>, <code><<</code>, <code>>></code>, <code>{</code>,
 657 <code>}</code>, <code>cleartomark</code>, <code>copy</code>, <code>dup</code>, <code>index</code>,
 658 <code>pop</code>, <code>roll</code>, <code>setpagedevice</code>, and <code>stopped</code> operators
 659 are supported.
 660
 661 </p>
 662 <h3 class="function"><a name="cupsRasterOpen">cupsRasterOpen</a></h3>
 663 <p class="description">Open a raster stream using a file descriptor.</p>
 664 <p class="code">
 665 <a href="#cups_raster_t">cups_raster_t</a> *cupsRasterOpen (<br>
 666 &nbsp;&nbsp;&nbsp;&nbsp;int fd,<br>
 667 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_mode_t">cups_mode_t</a> mode<br>
 668 );</p>
 669 <h4 class="parameters">Parameters</h4>
 670 <dl>
 671 <dt>fd</dt>
 672 <dd class="description">File descriptor</dd>
 673 <dt>mode</dt>
 674 <dd class="description">Mode - <code>CUPS_RASTER_READ</code>,
 675 <code>CUPS_RASTER_WRITE</code>,
 676 <code>CUPS_RASTER_WRITE_COMPRESSED</code>,
 677 or <code>CUPS_RASTER_WRITE_PWG</code></dd>
 678 </dl>
 679 <h4 class="returnvalue">Return Value</h4>
 680 <p class="description">New stream</p>
 681 <h4 class="discussion">Discussion</h4>
 682 <p class="discussion">This function associates a raster stream with the given file descriptor.
 683 For most printer driver filters, &quot;fd&quot; will be 0 (stdin).  For most raster
 684 image processor (RIP) filters that generate raster data, &quot;fd&quot; will be 1
 685 (stdout).<br>
 686 <br>
 687 When writing raster data, the <code>CUPS_RASTER_WRITE</code>,
 688 <code>CUPS_RASTER_WRITE_COMPRESS</code>, or <code>CUPS_RASTER_WRITE_PWG</code> mode can
 689 be used - compressed and PWG output is generally 25-50% smaller but adds a
 690 100-300% execution time overhead.</p>
 691 <h3 class="function"><a name="cupsRasterOpenIO">cupsRasterOpenIO</a></h3>
 692 <p class="description">Open a raster stream using a callback function.</p>
 693 <p class="code">
 694 <a href="#cups_raster_t">cups_raster_t</a> *cupsRasterOpenIO (<br>
 695 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_raster_iocb_t">cups_raster_iocb_t</a> iocb,<br>
 696 &nbsp;&nbsp;&nbsp;&nbsp;void *ctx,<br>
 697 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_mode_t">cups_mode_t</a> mode<br>
 698 );</p>
 699 <h4 class="parameters">Parameters</h4>
 700 <dl>
 701 <dt>iocb</dt>
 702 <dd class="description">Read/write callback</dd>
 703 <dt>ctx</dt>
 704 <dd class="description">Context pointer for callback</dd>
 705 <dt>mode</dt>
 706 <dd class="description">Mode - <code>CUPS_RASTER_READ</code>,
 707 <code>CUPS_RASTER_WRITE</code>,
 708 <code>CUPS_RASTER_WRITE_COMPRESSED</code>,
 709 or <code>CUPS_RASTER_WRITE_PWG</code></dd>
 710 </dl>
 711 <h4 class="returnvalue">Return Value</h4>
 712 <p class="description">New stream</p>
 713 <h4 class="discussion">Discussion</h4>
 714 <p class="discussion">This function associates a raster stream with the given callback function and
 715 context pointer.<br>
 716 <br>
 717 When writing raster data, the <code>CUPS_RASTER_WRITE</code>,
 718 <code>CUPS_RASTER_WRITE_COMPRESS</code>, or <code>CUPS_RASTER_WRITE_PWG</code> mode can
 719 be used - compressed and PWG output is generally 25-50% smaller but adds a
 720 100-300% execution time overhead.</p>
 721 <h3 class="function"><span class="info">&nbsp;DEPRECATED&nbsp;</span><a name="cupsRasterReadHeader">cupsRasterReadHeader</a></h3>
 722 <p class="description">Read a raster page header and store it in a
 723 version 1 page header structure.</p>
 724 <p class="code">
 725 unsigned cupsRasterReadHeader (<br>
 726 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_raster_t">cups_raster_t</a> *r,<br>
 727 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_page_header_t">cups_page_header_t</a> *h<br>
 728 );</p>
 729 <h4 class="parameters">Parameters</h4>
 730 <dl>
 731 <dt>r</dt>
 732 <dd class="description">Raster stream</dd>
 733 <dt>h</dt>
 734 <dd class="description">Pointer to header data</dd>
 735 </dl>
 736 <h4 class="returnvalue">Return Value</h4>
 737 <p class="description">1 on success, 0 on failure/end-of-file</p>
 738 <h4 class="discussion">Discussion</h4>
 739 <p class="discussion">This function is deprecated. Use <a href="#cupsRasterReadHeader2"><code>cupsRasterReadHeader2</code></a> instead.<br>
 740 <br>
 741 Version 1 page headers were used in CUPS 1.0 and 1.1 and contain a subset
 742 of the version 2 page header data. This function handles reading version 2
 743 page headers and copying only the version 1 data into the provided buffer.
 744
 745 </p>
 746 <h3 class="function"><span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span><a name="cupsRasterReadHeader2">cupsRasterReadHeader2</a></h3>
 747 <p class="description">Read a raster page header and store it in a
 748 version 2 page header structure.</p>
 749 <p class="code">
 750 unsigned cupsRasterReadHeader2 (<br>
 751 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_raster_t">cups_raster_t</a> *r,<br>
 752 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_page_header2_t">cups_page_header2_t</a> *h<br>
 753 );</p>
 754 <h4 class="parameters">Parameters</h4>
 755 <dl>
 756 <dt>r</dt>
 757 <dd class="description">Raster stream</dd>
 758 <dt>h</dt>
 759 <dd class="description">Pointer to header data</dd>
 760 </dl>
 761 <h4 class="returnvalue">Return Value</h4>
 762 <p class="description">1 on success, 0 on failure/end-of-file</p>
 763 <h3 class="function"><a name="cupsRasterReadPixels">cupsRasterReadPixels</a></h3>
 764 <p class="description">Read raster pixels.</p>
 765 <p class="code">
 766 unsigned cupsRasterReadPixels (<br>
 767 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_raster_t">cups_raster_t</a> *r,<br>
 768 &nbsp;&nbsp;&nbsp;&nbsp;unsigned char *p,<br>
 769 &nbsp;&nbsp;&nbsp;&nbsp;unsigned len<br>
 770 );</p>
 771 <h4 class="parameters">Parameters</h4>
 772 <dl>
 773 <dt>r</dt>
 774 <dd class="description">Raster stream</dd>
 775 <dt>p</dt>
 776 <dd class="description">Pointer to pixel buffer</dd>
 777 <dt>len</dt>
 778 <dd class="description">Number of bytes to read</dd>
 779 </dl>
 780 <h4 class="returnvalue">Return Value</h4>
 781 <p class="description">Number of bytes read</p>
 782 <h4 class="discussion">Discussion</h4>
 783 <p class="discussion">For best performance, filters should read one or more whole lines.
 784 The &quot;cupsBytesPerLine&quot; value from the page header can be used to allocate
 785 the line buffer and as the number of bytes to read.</p>
 786 <h3 class="function"><span class="info">&nbsp;DEPRECATED&nbsp;</span><a name="cupsRasterWriteHeader">cupsRasterWriteHeader</a></h3>
 787 <p class="description">Write a raster page header from a version 1 page
 788 header structure.</p>
 789 <p class="code">
 790 unsigned cupsRasterWriteHeader (<br>
 791 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_raster_t">cups_raster_t</a> *r,<br>
 792 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_page_header_t">cups_page_header_t</a> *h<br>
 793 );</p>
 794 <h4 class="parameters">Parameters</h4>
 795 <dl>
 796 <dt>r</dt>
 797 <dd class="description">Raster stream</dd>
 798 <dt>h</dt>
 799 <dd class="description">Raster page header</dd>
 800 </dl>
 801 <h4 class="returnvalue">Return Value</h4>
 802 <p class="description">1 on success, 0 on failure</p>
 803 <h4 class="discussion">Discussion</h4>
 804 <p class="discussion">This function is deprecated. Use <a href="#cupsRasterWriteHeader2"><code>cupsRasterWriteHeader2</code></a> instead.
 805
 806 </p>
 807 <h3 class="function"><span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span><a name="cupsRasterWriteHeader2">cupsRasterWriteHeader2</a></h3>
 808 <p class="description">Write a raster page header from a version 2
 809 page header structure.</p>
 810 <p class="code">
 811 unsigned cupsRasterWriteHeader2 (<br>
 812 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_raster_t">cups_raster_t</a> *r,<br>
 813 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_page_header2_t">cups_page_header2_t</a> *h<br>
 814 );</p>
 815 <h4 class="parameters">Parameters</h4>
 816 <dl>
 817 <dt>r</dt>
 818 <dd class="description">Raster stream</dd>
 819 <dt>h</dt>
 820 <dd class="description">Raster page header</dd>
 821 </dl>
 822 <h4 class="returnvalue">Return Value</h4>
 823 <p class="description">1 on success, 0 on failure</p>
 824 <h4 class="discussion">Discussion</h4>
 825 <p class="discussion">The page header can be initialized using <a href="#cupsRasterInterpretPPD"><code>cupsRasterInterpretPPD</code></a>.
 826
 827 </p>
 828 <h3 class="function"><a name="cupsRasterWritePixels">cupsRasterWritePixels</a></h3>
 829 <p class="description">Write raster pixels.</p>
 830 <p class="code">
 831 unsigned cupsRasterWritePixels (<br>
 832 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_raster_t">cups_raster_t</a> *r,<br>
 833 &nbsp;&nbsp;&nbsp;&nbsp;unsigned char *p,<br>
 834 &nbsp;&nbsp;&nbsp;&nbsp;unsigned len<br>
 835 );</p>
 836 <h4 class="parameters">Parameters</h4>
 837 <dl>
 838 <dt>r</dt>
 839 <dd class="description">Raster stream</dd>
 840 <dt>p</dt>
 841 <dd class="description">Bytes to write</dd>
 842 <dt>len</dt>
 843 <dd class="description">Number of bytes to write</dd>
 844 </dl>
 845 <h4 class="returnvalue">Return Value</h4>
 846 <p class="description">Number of bytes written</p>
 847 <h4 class="discussion">Discussion</h4>
 848 <p class="discussion">For best performance, filters should write one or more whole lines.
 849 The &quot;cupsBytesPerLine&quot; value from the page header can be used to allocate
 850 the line buffer and as the number of bytes to write.</p>
 851 <h2 class="title"><a name="TYPES">Data Types</a></h2>
 852 <h3 class="typedef"><a name="cups_adv_t">cups_adv_t</a></h3>
 853 <p class="description">AdvanceMedia attribute values</p>
 854 <p class="code">
 855 typedef enum <a href="#cups_adv_e">cups_adv_e</a> cups_adv_t;
 856 </p>
 857 <h3 class="typedef"><a name="cups_bool_t">cups_bool_t</a></h3>
 858 <p class="description">Boolean type</p>
 859 <p class="code">
 860 typedef enum <a href="#cups_bool_e">cups_bool_e</a> cups_bool_t;
 861 </p>
 862 <h3 class="typedef"><a name="cups_cspace_t">cups_cspace_t</a></h3>
 863 <p class="description">cupsColorSpace attribute values</p>
 864 <p class="code">
 865 typedef enum <a href="#cups_cspace_e">cups_cspace_e</a> cups_cspace_t;
 866 </p>
 867 <h3 class="typedef"><a name="cups_cut_t">cups_cut_t</a></h3>
 868 <p class="description">CutMedia attribute values</p>
 869 <p class="code">
 870 typedef enum <a href="#cups_cut_e">cups_cut_e</a> cups_cut_t;
 871 </p>
 872 <h3 class="typedef"><a name="cups_edge_t">cups_edge_t</a></h3>
 873 <p class="description">LeadingEdge attribute values</p>
 874 <p class="code">
 875 typedef enum <a href="#cups_edge_e">cups_edge_e</a> cups_edge_t;
 876 </p>
 877 <h3 class="typedef"><a name="cups_interpret_cb_t">cups_interpret_cb_t</a></h3>
 878 <p class="description">cupsRasterInterpretPPD callback function</p>
 879 <p class="code">
 880 typedef int (*cups_interpret_cb_t)(<a href="#cups_page_header2_t">cups_page_header2_t</a> *header, int preferred_bits);
 881 </p>
 882 <h3 class="typedef"><a name="cups_jog_t">cups_jog_t</a></h3>
 883 <p class="description">Jog attribute values</p>
 884 <p class="code">
 885 typedef enum <a href="#cups_jog_e">cups_jog_e</a> cups_jog_t;
 886 </p>
 887 <h3 class="typedef"><a name="cups_mode_t">cups_mode_t</a></h3>
 888 <p class="description">cupsRasterOpen modes</p>
 889 <p class="code">
 890 typedef enum <a href="#cups_mode_e">cups_mode_e</a> cups_mode_t;
 891 </p>
 892 <h3 class="typedef"><a name="cups_order_t">cups_order_t</a></h3>
 893 <p class="description">cupsColorOrder attribute values</p>
 894 <p class="code">
 895 typedef enum <a href="#cups_order_e">cups_order_e</a> cups_order_t;
 896 </p>
 897 <h3 class="typedef"><a name="cups_orient_t">cups_orient_t</a></h3>
 898 <p class="description">Orientation attribute values</p>
 899 <p class="code">
 900 typedef enum <a href="#cups_orient_e">cups_orient_e</a> cups_orient_t;
 901 </p>
 902 <h3 class="typedef"><span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span><a name="cups_page_header2_t">cups_page_header2_t</a></h3>
 903 <p class="description">Version 2 page header </p>
 904 <p class="code">
 905 typedef struct <a href="#cups_page_header2_s">cups_page_header2_s</a> cups_page_header2_t;
 906 </p>
 907 <h3 class="typedef"><span class="info">&nbsp;DEPRECATED&nbsp;</span><a name="cups_page_header_t">cups_page_header_t</a></h3>
 908 <p class="description">Version 1 page header </p>
 909 <p class="code">
 910 typedef struct <a href="#cups_page_header_s">cups_page_header_s</a> cups_page_header_t;
 911 </p>
 912 <h3 class="typedef"><a name="cups_raster_iocb_t">cups_raster_iocb_t</a></h3>
 913 <p class="description">cupsRasterOpenIO callback function</p>
 914 <p class="code">
 915 typedef ssize_t (*cups_raster_iocb_t)(void *ctx, unsigned char *buffer, size_t length);
 916 </p>
 917 <h3 class="typedef"><a name="cups_raster_t">cups_raster_t</a></h3>
 918 <p class="description">Raster stream data</p>
 919 <p class="code">
 920 typedef struct _cups_raster_s cups_raster_t;
 921 </p>
 922 <h2 class="title"><a name="STRUCTURES">Structures</a></h2>
 923 <h3 class="struct"><span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span><a name="cups_page_header2_s">cups_page_header2_s</a></h3>
 924 <p class="description">Version 2 page header </p>
 925 <p class="code">struct cups_page_header2_s {<br>
 926 &nbsp;&nbsp;&nbsp;&nbsp;unsigned AdvanceDistance;<br>
 927 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_adv_t">cups_adv_t</a> AdvanceMedia;<br>
 928 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_bool_t">cups_bool_t</a> Collate;<br>
 929 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_cut_t">cups_cut_t</a> CutMedia;<br>
 930 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_bool_t">cups_bool_t</a> Duplex;<br>
 931 &nbsp;&nbsp;&nbsp;&nbsp;unsigned HWResolution[2];<br>
 932 &nbsp;&nbsp;&nbsp;&nbsp;unsigned ImagingBoundingBox[4];<br>
 933 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_bool_t">cups_bool_t</a> InsertSheet;<br>
 934 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_jog_t">cups_jog_t</a> Jog;<br>
 935 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_edge_t">cups_edge_t</a> LeadingEdge;<br>
 936 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_bool_t">cups_bool_t</a> ManualFeed;<br>
 937 &nbsp;&nbsp;&nbsp;&nbsp;unsigned Margins[2];<br>
 938 &nbsp;&nbsp;&nbsp;&nbsp;char MediaClass[64];<br>
 939 &nbsp;&nbsp;&nbsp;&nbsp;char MediaColor[64];<br>
 940 &nbsp;&nbsp;&nbsp;&nbsp;unsigned MediaPosition;<br>
 941 &nbsp;&nbsp;&nbsp;&nbsp;char MediaType[64];<br>
 942 &nbsp;&nbsp;&nbsp;&nbsp;unsigned MediaWeight;<br>
 943 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_bool_t">cups_bool_t</a> MirrorPrint;<br>
 944 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_bool_t">cups_bool_t</a> NegativePrint;<br>
 945 &nbsp;&nbsp;&nbsp;&nbsp;unsigned NumCopies;<br>
 946 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_orient_t">cups_orient_t</a> Orientation;<br>
 947 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_bool_t">cups_bool_t</a> OutputFaceUp;<br>
 948 &nbsp;&nbsp;&nbsp;&nbsp;char OutputType[64];<br>
 949 &nbsp;&nbsp;&nbsp;&nbsp;unsigned PageSize[2];<br>
 950 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_bool_t">cups_bool_t</a> Separations;<br>
 951 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_bool_t">cups_bool_t</a> TraySwitch;<br>
 952 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_bool_t">cups_bool_t</a> Tumble;<br>
 953 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsBitsPerColor;<br>
 954 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsBitsPerPixel;<br>
 955 &nbsp;&nbsp;&nbsp;&nbsp;float cupsBorderlessScalingFactor;<br>
 956 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsBytesPerLine;<br>
 957 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_order_t">cups_order_t</a> cupsColorOrder;<br>
 958 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_cspace_t">cups_cspace_t</a> cupsColorSpace;<br>
 959 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsCompression;<br>
 960 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsHeight;<br>
 961 &nbsp;&nbsp;&nbsp;&nbsp;float cupsImagingBBox[4];<br>
 962 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsInteger[16];<br>
 963 &nbsp;&nbsp;&nbsp;&nbsp;char cupsMarkerType[64];<br>
 964 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsMediaType;<br>
 965 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsNumColors;<br>
 966 &nbsp;&nbsp;&nbsp;&nbsp;char cupsPageSizeName[64];<br>
 967 &nbsp;&nbsp;&nbsp;&nbsp;float cupsPageSize[2];<br>
 968 &nbsp;&nbsp;&nbsp;&nbsp;float cupsReal[16];<br>
 969 &nbsp;&nbsp;&nbsp;&nbsp;char cupsRenderingIntent[64];<br>
 970 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsRowCount;<br>
 971 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsRowFeed;<br>
 972 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsRowStep;<br>
 973 &nbsp;&nbsp;&nbsp;&nbsp;char cupsString[16][64];<br>
 974 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsWidth;<br>
 975 };</p>
 976 <h4 class="members">Members</h4>
 977 <dl>
 978 <dt>AdvanceDistance </dt>
 979 <dd class="description">AdvanceDistance value in points</dd>
 980 <dt>AdvanceMedia </dt>
 981 <dd class="description">AdvanceMedia value (<a href="#cups_adv_t"><code>cups_adv_t</code></a>)</dd>
 982 <dt>Collate </dt>
 983 <dd class="description">Collated copies value</dd>
 984 <dt>CutMedia </dt>
 985 <dd class="description">CutMedia value (<a href="#cups_cut_t"><code>cups_cut_t</code></a>)</dd>
 986 <dt>Duplex </dt>
 987 <dd class="description">Duplexed (double-sided) value</dd>
 988 <dt>HWResolution[2] </dt>
 989 <dd class="description">Resolution in dots-per-inch</dd>
 990 <dt>ImagingBoundingBox[4] </dt>
 991 <dd class="description">Pixel region that is painted (points, left, bottom, right, top)</dd>
 992 <dt>InsertSheet </dt>
 993 <dd class="description">InsertSheet value</dd>
 994 <dt>Jog </dt>
 995 <dd class="description">Jog value (<a href="#cups_jog_t"><code>cups_jog_t</code></a>)</dd>
 996 <dt>LeadingEdge </dt>
 997 <dd class="description">LeadingEdge value (<a href="#cups_edge_t"><code>cups_edge_t</code></a>)</dd>
 998 <dt>ManualFeed </dt>
 999 <dd class="description">ManualFeed value</dd>
1000 <dt>Margins[2] </dt>
1001 <dd class="description">Lower-lefthand margins in points</dd>
1002 <dt>MediaClass[64] </dt>
1003 <dd class="description">MediaClass string</dd>
1004 <dt>MediaColor[64] </dt>
1005 <dd class="description">MediaColor string</dd>
1006 <dt>MediaPosition </dt>
1007 <dd class="description">MediaPosition value</dd>
1008 <dt>MediaType[64] </dt>
1009 <dd class="description">MediaType string</dd>
1010 <dt>MediaWeight </dt>
1011 <dd class="description">MediaWeight value in grams/m^2</dd>
1012 <dt>MirrorPrint </dt>
1013 <dd class="description">MirrorPrint value</dd>
1014 <dt>NegativePrint </dt>
1015 <dd class="description">NegativePrint value</dd>
1016 <dt>NumCopies </dt>
1017 <dd class="description">Number of copies to produce</dd>
1018 <dt>Orientation </dt>
1019 <dd class="description">Orientation value (<a href="#cups_orient_t"><code>cups_orient_t</code></a>)</dd>
1020 <dt>OutputFaceUp </dt>
1021 <dd class="description">OutputFaceUp value</dd>
1022 <dt>OutputType[64] </dt>
1023 <dd class="description">OutputType string</dd>
1024 <dt>PageSize[2] </dt>
1025 <dd class="description">Width and length of page in points</dd>
1026 <dt>Separations </dt>
1027 <dd class="description">Separations value</dd>
1028 <dt>TraySwitch </dt>
1029 <dd class="description">TraySwitch value</dd>
1030 <dt>Tumble </dt>
1031 <dd class="description">Tumble value</dd>
1032 <dt>cupsBitsPerColor </dt>
1033 <dd class="description">Number of bits for each color</dd>
1034 <dt>cupsBitsPerPixel </dt>
1035 <dd class="description">Number of bits for each pixel</dd>
1036 <dt>cupsBorderlessScalingFactor <span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span></dt>
1037 <dd class="description">Scaling that was applied to page data </dd>
1038 <dt>cupsBytesPerLine </dt>
1039 <dd class="description">Number of bytes per line</dd>
1040 <dt>cupsColorOrder </dt>
1041 <dd class="description">Order of colors</dd>
1042 <dt>cupsColorSpace </dt>
1043 <dd class="description">True colorspace</dd>
1044 <dt>cupsCompression </dt>
1045 <dd class="description">Device compression to use</dd>
1046 <dt>cupsHeight </dt>
1047 <dd class="description">Height of page image in pixels</dd>
1048 <dt>cupsImagingBBox[4] <span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span></dt>
1049 <dd class="description">Floating point ImagingBoundingBox
1050 (scaling factor not applied, left,
1051 bottom, right, top) </dd>
1052 <dt>cupsInteger[16] <span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span></dt>
1053 <dd class="description">User-defined integer values </dd>
1054 <dt>cupsMarkerType[64] <span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span></dt>
1055 <dd class="description">Ink/toner type </dd>
1056 <dt>cupsMediaType </dt>
1057 <dd class="description">Media type code</dd>
1058 <dt>cupsNumColors <span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span></dt>
1059 <dd class="description">Number of color compoents </dd>
1060 <dt>cupsPageSizeName[64] <span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span></dt>
1061 <dd class="description">PageSize name </dd>
1062 <dt>cupsPageSize[2] <span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span></dt>
1063 <dd class="description">Floating point PageSize (scaling *
1064 factor not applied) </dd>
1065 <dt>cupsReal[16] <span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span></dt>
1066 <dd class="description">User-defined floating-point values </dd>
1067 <dt>cupsRenderingIntent[64] <span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span></dt>
1068 <dd class="description">Color rendering intent </dd>
1069 <dt>cupsRowCount </dt>
1070 <dd class="description">Rows per band</dd>
1071 <dt>cupsRowFeed </dt>
1072 <dd class="description">Feed between bands</dd>
1073 <dt>cupsRowStep </dt>
1074 <dd class="description">Spacing between lines</dd>
1075 <dt>cupsString[16][64] <span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span></dt>
1076 <dd class="description">User-defined string values </dd>
1077 <dt>cupsWidth </dt>
1078 <dd class="description">Width of page image in pixels</dd>
1079 </dl>
1080 <h3 class="struct"><span class="info">&nbsp;DEPRECATED&nbsp;</span><a name="cups_page_header_s">cups_page_header_s</a></h3>
1081 <p class="description">Version 1 page header </p>
1082 <p class="code">struct cups_page_header_s {<br>
1083 &nbsp;&nbsp;&nbsp;&nbsp;unsigned AdvanceDistance;<br>
1084 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_adv_t">cups_adv_t</a> AdvanceMedia;<br>
1085 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_bool_t">cups_bool_t</a> Collate;<br>
1086 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_cut_t">cups_cut_t</a> CutMedia;<br>
1087 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_bool_t">cups_bool_t</a> Duplex;<br>
1088 &nbsp;&nbsp;&nbsp;&nbsp;unsigned HWResolution[2];<br>
1089 &nbsp;&nbsp;&nbsp;&nbsp;unsigned ImagingBoundingBox[4];<br>
1090 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_bool_t">cups_bool_t</a> InsertSheet;<br>
1091 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_jog_t">cups_jog_t</a> Jog;<br>
1092 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_edge_t">cups_edge_t</a> LeadingEdge;<br>
1093 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_bool_t">cups_bool_t</a> ManualFeed;<br>
1094 &nbsp;&nbsp;&nbsp;&nbsp;unsigned Margins[2];<br>
1095 &nbsp;&nbsp;&nbsp;&nbsp;char MediaClass[64];<br>
1096 &nbsp;&nbsp;&nbsp;&nbsp;char MediaColor[64];<br>
1097 &nbsp;&nbsp;&nbsp;&nbsp;unsigned MediaPosition;<br>
1098 &nbsp;&nbsp;&nbsp;&nbsp;char MediaType[64];<br>
1099 &nbsp;&nbsp;&nbsp;&nbsp;unsigned MediaWeight;<br>
1100 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_bool_t">cups_bool_t</a> MirrorPrint;<br>
1101 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_bool_t">cups_bool_t</a> NegativePrint;<br>
1102 &nbsp;&nbsp;&nbsp;&nbsp;unsigned NumCopies;<br>
1103 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_orient_t">cups_orient_t</a> Orientation;<br>
1104 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_bool_t">cups_bool_t</a> OutputFaceUp;<br>
1105 &nbsp;&nbsp;&nbsp;&nbsp;char OutputType[64];<br>
1106 &nbsp;&nbsp;&nbsp;&nbsp;unsigned PageSize[2];<br>
1107 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_bool_t">cups_bool_t</a> Separations;<br>
1108 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_bool_t">cups_bool_t</a> TraySwitch;<br>
1109 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_bool_t">cups_bool_t</a> Tumble;<br>
1110 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsBitsPerColor;<br>
1111 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsBitsPerPixel;<br>
1112 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsBytesPerLine;<br>
1113 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_order_t">cups_order_t</a> cupsColorOrder;<br>
1114 &nbsp;&nbsp;&nbsp;&nbsp;<a href="#cups_cspace_t">cups_cspace_t</a> cupsColorSpace;<br>
1115 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsCompression;<br>
1116 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsHeight;<br>
1117 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsMediaType;<br>
1118 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsRowCount;<br>
1119 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsRowFeed;<br>
1120 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsRowStep;<br>
1121 &nbsp;&nbsp;&nbsp;&nbsp;unsigned cupsWidth;<br>
1122 };</p>
1123 <h4 class="members">Members</h4>
1124 <dl>
1125 <dt>AdvanceDistance </dt>
1126 <dd class="description">AdvanceDistance value in points</dd>
1127 <dt>AdvanceMedia </dt>
1128 <dd class="description">AdvanceMedia value (<a href="#cups_adv_t"><code>cups_adv_t</code></a>)</dd>
1129 <dt>Collate </dt>
1130 <dd class="description">Collated copies value</dd>
1131 <dt>CutMedia </dt>
1132 <dd class="description">CutMedia value (<a href="#cups_cut_t"><code>cups_cut_t</code></a>)</dd>
1133 <dt>Duplex </dt>
1134 <dd class="description">Duplexed (double-sided) value</dd>
1135 <dt>HWResolution[2] </dt>
1136 <dd class="description">Resolution in dots-per-inch</dd>
1137 <dt>ImagingBoundingBox[4] </dt>
1138 <dd class="description">Pixel region that is painted (points, left, bottom, right, top)</dd>
1139 <dt>InsertSheet </dt>
1140 <dd class="description">InsertSheet value</dd>
1141 <dt>Jog </dt>
1142 <dd class="description">Jog value (<a href="#cups_jog_t"><code>cups_jog_t</code></a>)</dd>
1143 <dt>LeadingEdge </dt>
1144 <dd class="description">LeadingEdge value (<a href="#cups_edge_t"><code>cups_edge_t</code></a>)</dd>
1145 <dt>ManualFeed </dt>
1146 <dd class="description">ManualFeed value</dd>
1147 <dt>Margins[2] </dt>
1148 <dd class="description">Lower-lefthand margins in points</dd>
1149 <dt>MediaClass[64] </dt>
1150 <dd class="description">MediaClass string</dd>
1151 <dt>MediaColor[64] </dt>
1152 <dd class="description">MediaColor string</dd>
1153 <dt>MediaPosition </dt>
1154 <dd class="description">MediaPosition value</dd>
1155 <dt>MediaType[64] </dt>
1156 <dd class="description">MediaType string</dd>
1157 <dt>MediaWeight </dt>
1158 <dd class="description">MediaWeight value in grams/m^2</dd>
1159 <dt>MirrorPrint </dt>
1160 <dd class="description">MirrorPrint value</dd>
1161 <dt>NegativePrint </dt>
1162 <dd class="description">NegativePrint value</dd>
1163 <dt>NumCopies </dt>
1164 <dd class="description">Number of copies to produce</dd>
1165 <dt>Orientation </dt>
1166 <dd class="description">Orientation value (<a href="#cups_orient_t"><code>cups_orient_t</code></a>)</dd>
1167 <dt>OutputFaceUp </dt>
1168 <dd class="description">OutputFaceUp value</dd>
1169 <dt>OutputType[64] </dt>
1170 <dd class="description">OutputType string</dd>
1171 <dt>PageSize[2] </dt>
1172 <dd class="description">Width and length of page in points</dd>
1173 <dt>Separations </dt>
1174 <dd class="description">Separations value</dd>
1175 <dt>TraySwitch </dt>
1176 <dd class="description">TraySwitch value</dd>
1177 <dt>Tumble </dt>
1178 <dd class="description">Tumble value</dd>
1179 <dt>cupsBitsPerColor </dt>
1180 <dd class="description">Number of bits for each color</dd>
1181 <dt>cupsBitsPerPixel </dt>
1182 <dd class="description">Number of bits for each pixel</dd>
1183 <dt>cupsBytesPerLine </dt>
1184 <dd class="description">Number of bytes per line</dd>
1185 <dt>cupsColorOrder </dt>
1186 <dd class="description">Order of colors</dd>
1187 <dt>cupsColorSpace </dt>
1188 <dd class="description">True colorspace</dd>
1189 <dt>cupsCompression </dt>
1190 <dd class="description">Device compression to use</dd>
1191 <dt>cupsHeight </dt>
1192 <dd class="description">Height of page image in pixels</dd>
1193 <dt>cupsMediaType </dt>
1194 <dd class="description">Media type code</dd>
1195 <dt>cupsRowCount </dt>
1196 <dd class="description">Rows per band</dd>
1197 <dt>cupsRowFeed </dt>
1198 <dd class="description">Feed between bands</dd>
1199 <dt>cupsRowStep </dt>
1200 <dd class="description">Spacing between lines</dd>
1201 <dt>cupsWidth </dt>
1202 <dd class="description">Width of page image in pixels</dd>
1203 </dl>
1204 <h2 class="title"><a name="ENUMERATIONS">Constants</a></h2>
1205 <h3 class="enumeration"><a name="cups_adv_e">cups_adv_e</a></h3>
1206 <p class="description">AdvanceMedia attribute values</p>
1207 <h4 class="constants">Constants</h4>
1208 <dl>
1209 <dt>CUPS_ADVANCE_FILE </dt>
1210 <dd class="description">Advance the roll after this file</dd>
1211 <dt>CUPS_ADVANCE_JOB </dt>
1212 <dd class="description">Advance the roll after this job</dd>
1213 <dt>CUPS_ADVANCE_NONE </dt>
1214 <dd class="description">Never advance the roll</dd>
1215 <dt>CUPS_ADVANCE_PAGE </dt>
1216 <dd class="description">Advance the roll after this page</dd>
1217 <dt>CUPS_ADVANCE_SET </dt>
1218 <dd class="description">Advance the roll after this set</dd>
1219 </dl>
1220 <h3 class="enumeration"><a name="cups_bool_e">cups_bool_e</a></h3>
1221 <p class="description">Boolean type</p>
1222 <h4 class="constants">Constants</h4>
1223 <dl>
1224 <dt>CUPS_FALSE </dt>
1225 <dd class="description">Logical false</dd>
1226 <dt>CUPS_TRUE </dt>
1227 <dd class="description">Logical true</dd>
1228 </dl>
1229 <h3 class="enumeration"><a name="cups_cspace_e">cups_cspace_e</a></h3>
1230 <p class="description">cupsColorSpace attribute values</p>
1231 <h4 class="constants">Constants</h4>
1232 <dl>
1233 <dt>CUPS_CSPACE_ADOBERGB <span class="info">&nbsp;CUPS 1.4.5&nbsp;</span></dt>
1234 <dd class="description">Red, green, blue (Adobe RGB) </dd>
1235 <dt>CUPS_CSPACE_CIELab <span class="info">&nbsp;CUPS 1.1.19/Mac OS X 10.3&nbsp;</span></dt>
1236 <dd class="description">CIE Lab </dd>
1237 <dt>CUPS_CSPACE_CIEXYZ <span class="info">&nbsp;CUPS 1.1.19/Mac OS X 10.3&nbsp;</span></dt>
1238 <dd class="description">CIE XYZ </dd>
1239 <dt>CUPS_CSPACE_CMY </dt>
1240 <dd class="description">Cyan, magenta, yellow (DeviceCMY)</dd>
1241 <dt>CUPS_CSPACE_CMYK </dt>
1242 <dd class="description">Cyan, magenta, yellow, black (DeviceCMYK)</dd>
1243 <dt>CUPS_CSPACE_DEVICE1 <span class="info">&nbsp;CUPS 1.4.5&nbsp;</span></dt>
1244 <dd class="description">DeviceN, 1 color </dd>
1245 <dt>CUPS_CSPACE_DEVICE2 <span class="info">&nbsp;CUPS 1.4.5&nbsp;</span></dt>
1246 <dd class="description">DeviceN, 2 colors </dd>
1247 <dt>CUPS_CSPACE_DEVICE3 <span class="info">&nbsp;CUPS 1.4.5&nbsp;</span></dt>
1248 <dd class="description">DeviceN, 3 colors </dd>
1249 <dt>CUPS_CSPACE_DEVICE4 <span class="info">&nbsp;CUPS 1.4.5&nbsp;</span></dt>
1250 <dd class="description">DeviceN, 4 colors </dd>
1251 <dt>CUPS_CSPACE_DEVICE5 <span class="info">&nbsp;CUPS 1.4.5&nbsp;</span></dt>
1252 <dd class="description">DeviceN, 5 colors </dd>
1253 <dt>CUPS_CSPACE_DEVICE6 <span class="info">&nbsp;CUPS 1.4.5&nbsp;</span></dt>
1254 <dd class="description">DeviceN, 6 colors </dd>
1255 <dt>CUPS_CSPACE_DEVICE7 <span class="info">&nbsp;CUPS 1.4.5&nbsp;</span></dt>
1256 <dd class="description">DeviceN, 7 colors </dd>
1257 <dt>CUPS_CSPACE_DEVICE8 <span class="info">&nbsp;CUPS 1.4.5&nbsp;</span></dt>
1258 <dd class="description">DeviceN, 8 colors </dd>
1259 <dt>CUPS_CSPACE_DEVICE9 <span class="info">&nbsp;CUPS 1.4.5&nbsp;</span></dt>
1260 <dd class="description">DeviceN, 9 colors </dd>
1261 <dt>CUPS_CSPACE_DEVICEA <span class="info">&nbsp;CUPS 1.4.5&nbsp;</span></dt>
1262 <dd class="description">DeviceN, 10 colors </dd>
1263 <dt>CUPS_CSPACE_DEVICEB <span class="info">&nbsp;CUPS 1.4.5&nbsp;</span></dt>
1264 <dd class="description">DeviceN, 11 colors </dd>
1265 <dt>CUPS_CSPACE_DEVICEC <span class="info">&nbsp;CUPS 1.4.5&nbsp;</span></dt>
1266 <dd class="description">DeviceN, 12 colors </dd>
1267 <dt>CUPS_CSPACE_DEVICED <span class="info">&nbsp;CUPS 1.4.5&nbsp;</span></dt>
1268 <dd class="description">DeviceN, 13 colors </dd>
1269 <dt>CUPS_CSPACE_DEVICEE <span class="info">&nbsp;CUPS 1.4.5&nbsp;</span></dt>
1270 <dd class="description">DeviceN, 14 colors </dd>
1271 <dt>CUPS_CSPACE_DEVICEF <span class="info">&nbsp;CUPS 1.4.5&nbsp;</span></dt>
1272 <dd class="description">DeviceN, 15 colors </dd>
1273 <dt>CUPS_CSPACE_GMCK <span class="info">&nbsp;DEPRECATED&nbsp;</span></dt>
1274 <dd class="description">Gold, magenta, yellow, black </dd>
1275 <dt>CUPS_CSPACE_GMCS <span class="info">&nbsp;DEPRECATED&nbsp;</span></dt>
1276 <dd class="description">Gold, magenta, yellow, silver </dd>
1277 <dt>CUPS_CSPACE_GOLD <span class="info">&nbsp;DEPRECATED&nbsp;</span></dt>
1278 <dd class="description">Gold foil </dd>
1279 <dt>CUPS_CSPACE_ICC1 <span class="info">&nbsp;CUPS 1.1.19/Mac OS X 10.3&nbsp;</span></dt>
1280 <dd class="description">ICC-based, 1 color </dd>
1281 <dt>CUPS_CSPACE_ICC2 <span class="info">&nbsp;CUPS 1.1.19/Mac OS X 10.3&nbsp;</span></dt>
1282 <dd class="description">ICC-based, 2 colors </dd>
1283 <dt>CUPS_CSPACE_ICC3 <span class="info">&nbsp;CUPS 1.1.19/Mac OS X 10.3&nbsp;</span></dt>
1284 <dd class="description">ICC-based, 3 colors </dd>
1285 <dt>CUPS_CSPACE_ICC4 <span class="info">&nbsp;CUPS 1.1.19/Mac OS X 10.3&nbsp;</span></dt>
1286 <dd class="description">ICC-based, 4 colors </dd>
1287 <dt>CUPS_CSPACE_ICC5 <span class="info">&nbsp;CUPS 1.1.19/Mac OS X 10.3&nbsp;</span></dt>
1288 <dd class="description">ICC-based, 5 colors </dd>
1289 <dt>CUPS_CSPACE_ICC6 <span class="info">&nbsp;CUPS 1.1.19/Mac OS X 10.3&nbsp;</span></dt>
1290 <dd class="description">ICC-based, 6 colors </dd>
1291 <dt>CUPS_CSPACE_ICC7 <span class="info">&nbsp;CUPS 1.1.19/Mac OS X 10.3&nbsp;</span></dt>
1292 <dd class="description">ICC-based, 7 colors </dd>
1293 <dt>CUPS_CSPACE_ICC8 <span class="info">&nbsp;CUPS 1.1.19/Mac OS X 10.3&nbsp;</span></dt>
1294 <dd class="description">ICC-based, 8 colors </dd>
1295 <dt>CUPS_CSPACE_ICC9 <span class="info">&nbsp;CUPS 1.1.19/Mac OS X 10.3&nbsp;</span></dt>
1296 <dd class="description">ICC-based, 9 colors </dd>
1297 <dt>CUPS_CSPACE_ICCA <span class="info">&nbsp;CUPS 1.1.19/Mac OS X 10.3&nbsp;</span></dt>
1298 <dd class="description">ICC-based, 10 colors </dd>
1299 <dt>CUPS_CSPACE_ICCB <span class="info">&nbsp;CUPS 1.1.19/Mac OS X 10.3&nbsp;</span></dt>
1300 <dd class="description">ICC-based, 11 colors </dd>
1301 <dt>CUPS_CSPACE_ICCC <span class="info">&nbsp;CUPS 1.1.19/Mac OS X 10.3&nbsp;</span></dt>
1302 <dd class="description">ICC-based, 12 colors </dd>
1303 <dt>CUPS_CSPACE_ICCD <span class="info">&nbsp;CUPS 1.1.19/Mac OS X 10.3&nbsp;</span></dt>
1304 <dd class="description">ICC-based, 13 colors </dd>
1305 <dt>CUPS_CSPACE_ICCE <span class="info">&nbsp;CUPS 1.1.19/Mac OS X 10.3&nbsp;</span></dt>
1306 <dd class="description">ICC-based, 14 colors </dd>
1307 <dt>CUPS_CSPACE_ICCF <span class="info">&nbsp;CUPS 1.1.19/Mac OS X 10.3&nbsp;</span></dt>
1308 <dd class="description">ICC-based, 15 colors </dd>
1309 <dt>CUPS_CSPACE_K </dt>
1310 <dd class="description">Black (DeviceK)</dd>
1311 <dt>CUPS_CSPACE_KCMY <span class="info">&nbsp;DEPRECATED&nbsp;</span></dt>
1312 <dd class="description">Black, cyan, magenta, yellow </dd>
1313 <dt>CUPS_CSPACE_KCMYcm <span class="info">&nbsp;DEPRECATED&nbsp;</span></dt>
1314 <dd class="description">Black, cyan, magenta, yellow, light-cyan, light-magenta </dd>
1315 <dt>CUPS_CSPACE_RGB </dt>
1316 <dd class="description">Red, green, blue (DeviceRGB, sRGB by default)</dd>
1317 <dt>CUPS_CSPACE_RGBA </dt>
1318 <dd class="description">Red, green, blue, alpha (DeviceRGB, sRGB by default)</dd>
1319 <dt>CUPS_CSPACE_RGBW <span class="info">&nbsp;CUPS 1.2/Mac OS X 10.5&nbsp;</span></dt>
1320 <dd class="description">Red, green, blue, white (DeviceRGB, sRGB by default) </dd>
1321 <dt>CUPS_CSPACE_SILVER <span class="info">&nbsp;DEPRECATED&nbsp;</span></dt>
1322 <dd class="description">Silver foil </dd>
1323 <dt>CUPS_CSPACE_SRGB <span class="info">&nbsp;CUPS 1.4.5&nbsp;</span></dt>
1324 <dd class="description">Red, green, blue (sRGB) </dd>
1325 <dt>CUPS_CSPACE_SW <span class="info">&nbsp;CUPS 1.4.5&nbsp;</span></dt>
1326 <dd class="description">Luminance (gamma 2.2) </dd>
1327 <dt>CUPS_CSPACE_W </dt>
1328 <dd class="description">Luminance (DeviceGray, gamma 2.2 by default)</dd>
1329 <dt>CUPS_CSPACE_WHITE <span class="info">&nbsp;DEPRECATED&nbsp;</span></dt>
1330 <dd class="description">White ink (as black) </dd>
1331 <dt>CUPS_CSPACE_YMC <span class="info">&nbsp;DEPRECATED&nbsp;</span></dt>
1332 <dd class="description">Yellow, magenta, cyan </dd>
1333 <dt>CUPS_CSPACE_YMCK <span class="info">&nbsp;DEPRECATED&nbsp;</span></dt>
1334 <dd class="description">Yellow, magenta, cyan, black </dd>
1335 </dl>
1336 <h3 class="enumeration"><a name="cups_cut_e">cups_cut_e</a></h3>
1337 <p class="description">CutMedia attribute values</p>
1338 <h4 class="constants">Constants</h4>
1339 <dl>
1340 <dt>CUPS_CUT_FILE </dt>
1341 <dd class="description">Cut the roll after this file</dd>
1342 <dt>CUPS_CUT_JOB </dt>
1343 <dd class="description">Cut the roll after this job</dd>
1344 <dt>CUPS_CUT_NONE </dt>
1345 <dd class="description">Never cut the roll</dd>
1346 <dt>CUPS_CUT_PAGE </dt>
1347 <dd class="description">Cut the roll after this page</dd>
1348 <dt>CUPS_CUT_SET </dt>
1349 <dd class="description">Cut the roll after this set</dd>
1350 </dl>
1351 <h3 class="enumeration"><a name="cups_edge_e">cups_edge_e</a></h3>
1352 <p class="description">LeadingEdge attribute values</p>
1353 <h4 class="constants">Constants</h4>
1354 <dl>
1355 <dt>CUPS_EDGE_BOTTOM </dt>
1356 <dd class="description">Leading edge is the bottom of the page</dd>
1357 <dt>CUPS_EDGE_LEFT </dt>
1358 <dd class="description">Leading edge is the left of the page</dd>
1359 <dt>CUPS_EDGE_RIGHT </dt>
1360 <dd class="description">Leading edge is the right of the page</dd>
1361 <dt>CUPS_EDGE_TOP </dt>
1362 <dd class="description">Leading edge is the top of the page</dd>
1363 </dl>
1364 <h3 class="enumeration"><a name="cups_jog_e">cups_jog_e</a></h3>
1365 <p class="description">Jog attribute values</p>
1366 <h4 class="constants">Constants</h4>
1367 <dl>
1368 <dt>CUPS_JOG_FILE </dt>
1369 <dd class="description">Move pages after this file</dd>
1370 <dt>CUPS_JOG_JOB </dt>
1371 <dd class="description">Move pages after this job</dd>
1372 <dt>CUPS_JOG_NONE </dt>
1373 <dd class="description">Never move pages</dd>
1374 <dt>CUPS_JOG_SET </dt>
1375 <dd class="description">Move pages after this set</dd>
1376 </dl>
1377 <h3 class="enumeration"><a name="cups_mode_e">cups_mode_e</a></h3>
1378 <p class="description">cupsRasterOpen modes</p>
1379 <h4 class="constants">Constants</h4>
1380 <dl>
1381 <dt>CUPS_RASTER_READ </dt>
1382 <dd class="description">Open stream for reading</dd>
1383 <dt>CUPS_RASTER_WRITE </dt>
1384 <dd class="description">Open stream for writing</dd>
1385 <dt>CUPS_RASTER_WRITE_COMPRESSED <span class="info">&nbsp;CUPS 1.3/Mac OS X 10.5&nbsp;</span></dt>
1386 <dd class="description">Open stream for compressed writing </dd>
1387 <dt>CUPS_RASTER_WRITE_PWG <span class="info">&nbsp;CUPS 1.5&nbsp;</span></dt>
1388 <dd class="description">Open stream for compressed writing in PWG mode </dd>
1389 </dl>
1390 <h3 class="enumeration"><a name="cups_order_e">cups_order_e</a></h3>
1391 <p class="description">cupsColorOrder attribute values</p>
1392 <h4 class="constants">Constants</h4>
1393 <dl>
1394 <dt>CUPS_ORDER_BANDED </dt>
1395 <dd class="description">CCC MMM YYY KKK ...</dd>
1396 <dt>CUPS_ORDER_CHUNKED </dt>
1397 <dd class="description">CMYK CMYK CMYK ...</dd>
1398 <dt>CUPS_ORDER_PLANAR </dt>
1399 <dd class="description">CCC ... MMM ... YYY ... KKK ...</dd>
1400 </dl>
1401 <h3 class="enumeration"><a name="cups_orient_e">cups_orient_e</a></h3>
1402 <p class="description">Orientation attribute values</p>
1403 <h4 class="constants">Constants</h4>
1404 <dl>
1405 <dt>CUPS_ORIENT_0 </dt>
1406 <dd class="description">Don't rotate the page</dd>
1407 <dt>CUPS_ORIENT_180 </dt>
1408 <dd class="description">Turn the page upside down</dd>
1409 <dt>CUPS_ORIENT_270 </dt>
1410 <dd class="description">Rotate the page clockwise</dd>
1411 <dt>CUPS_ORIENT_90 </dt>
1412 <dd class="description">Rotate the page counter-clockwise</dd>
1413 </dl>
1414 </div>
1415 </body>
1416 </html>