<?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" /> <title>Magick++ API: Access Raw Image Pixels</title> <link rel="stylesheet" href="magick.css" type="text/css" /> </head> <body> <div class="doc-section"> <h3 align="center">Magick::CoderInfo</h3> <p>The <i>CoderInfo</i> class provides the means to provide information regarding ImageMagick 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 <a href="STL.html#coderInfoList">coderInfoList()</a> templated function.</p> <p>The following code fragment illustrates how CoderInfo may be used.</p> <pre class="code"> 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 style="margin-bottom: 0cm">The methods available in the <i>CoderInfo</i> class are shown in the following table:</p> <br /> <ul><p align="center" style="margin-bottom: 0cm"><b>CoderInfo Methods</b></p> <table width="100%" border="1" cellpadding="2" cellspacing="2"> <tr> <td> <p align="center"><b>Method</b></p></td> <td> <p align="center"><b>Returns</b></p></td> <td> <p align="center"><b>Signature</b></p></td> <td> <p align="center"><b>Description</b></p></td></tr> <tr> <td> <p align="center"><a name="CoderInfo"></a><font size="2">CoderInfo</font></p></td> <td bgcolor="#999999"></td> <td> <p><font size="2">void</font></p></td> <td> <p><font size="2">Construct object corresponding to named format (e.g. "GIF"). An exception is thrown if the format is not supported.</font></p></td></tr> <tr> <td> <p align="center"><a name="name"></a><font size="2">name</font></p></td> <td> <p><font size="2">std::string</font></p></td> <td> <p><font size="2">void</font></p></td> <td> <p><font size="2">Format name (e.g. "GIF").</font></p></td></tr> <tr> <td> <p align="center"><a name="description"></a><font size="2">description</font></p></td> <td> <p><font size="2">std::string</font></p></td> <td> <p><font size="2">void</font></p></td> <td> <p><font size="2">Format description (e.g. "CompuServe graphics interchange format").</font></p></td></tr> <tr> <td> <p align="center"><a name="isReadable"></a><font size="2">isReadable</font></p></td> <td> <p><font size="2">bool</font></p></td> <td> <p><font size="2">void</font></p></td> <td> <p><font size="2">Format is readable.</font></p></td></tr> <tr> <td> <p align="center"><a name="isWritable"></a><font size="2">isWritable</font></p></td> <td> <p><font size="2">bool</font></p></td> <td> <p><font size="2">void</font></p></td> <td> <p><font size="2">Format is writeable.</font></p></td></tr> <tr> <td> <p align="center"><a name="isMultiFrame"></a><font size="2">isMultiFrame</font></p></td> <td> <p><font size="2">bool</font></p></td> <td> <p><font size="2">void</font></p></td> <td> <p><font size="2">Format supports multiple frames.</font></p></td></tr></table></ul> </div> </body> </html>