<?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="generator" content="Docutils 0.13.1: http://docutils.sourceforge.net/" /> <title>Magick::CoderInfo Class</title> <link rel="stylesheet" href="../docutils-articles.css" type="text/css" /> </head> <body> <div class="banner"> <img src="../images/gm-107x76.png" alt="GraphicMagick logo" width="107" height="76" /> <span class="title">GraphicsMagick</span> <form action="http://www.google.com/search"> <input type="hidden" name="domains" value="www.graphicsmagick.org" /> <input type="hidden" name="sitesearch" value="www.graphicsmagick.org" /> <span class="nowrap"><input type="text" name="q" size="25" maxlength="255" /> <input type="submit" name="sa" value="Search" /></span> </form> </div> <div class="navmenu"> <ul> <li><a href="../index.html">Home</a></li> <li><a href="../project.html">Project</a></li> <li><a href="../download.html">Download</a></li> <li><a href="../README.html">Install</a></li> <li><a href="../Hg.html">Source</a></li> <li><a href="../NEWS.html">News</a> </li> <li><a href="../utilities.html">Utilities</a></li> <li><a href="../programming.html">Programming</a></li> <li><a href="../reference.html">Reference</a></li> </ul> </div> <div class="document" id="magick-coderinfo-class"> <h1 class="title">Magick::CoderInfo Class</h1> <!-- -*- mode: rst -*- --> <!-- This text is in reStucturedText format, so it may look a bit odd. --> <!-- See http://docutils.sourceforge.net/rst.html for details. --> <p>The CoderInfo class supports obtaining information about GraphicsMagick support for an image format (designated by a magick string). It may be used to provide support for a specific named format (provided as an argument to the constructor), or as an element of a container when format support is queried using the coderInfoList() templated function.</p> <p>The following code fragment illustrates how CoderInfo may be used:</p> <pre class="literal-block"> CoderInfo info("GIF"); cout << info->name() << ": (" << info->description() << ") : "; cout << "Readable = "; if ( info->isReadable() ) cout << "true"; else cout << "false"; cout << ", "; cout << "Writable = "; if ( info->isWritable() ) cout << "true"; else cout << "false"; cout << ", "; cout << "Multiframe = "; if ( info->isMultiframe() ) cout << "true"; else cout << "false"; cout << endl; </pre> <p>The definition of class 'Magick::CoderInfo' is:</p> <pre class="literal-block"> namespace Magick { class MagickDLLDecl CoderInfo { public: enum MatchType { AnyMatch, // match any coder TrueMatch, // match coder if true FalseMatch // match coder if false }; // Default constructor CoderInfo ( void ); // Copy constructor CoderInfo ( const CoderInfo &coder_ ); // Construct with coder name CoderInfo ( const std::string &name_ ); // Destructor ~CoderInfo ( void ); // Format name std::string name( void ) const; // Format description std::string description( void ) const; // Format is readable bool isReadable( void ) const; // Format is writeable bool isWritable( void ) const; // Format supports multiple frames bool isMultiFrame( void ) const; // Assignment operator CoderInfo& operator= (const CoderInfo &coder_ ); }; } </pre> <p>Copyright © Bob Friesenhahn 1999 - 2018</p> </div> </body> </html>