1 <?xml version="1.0" encoding="utf-8" ?> 2 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 3 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> 4 <head> 5 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 6 <title>Magick++ API: Access Raw Image Pixels</title> 7 <link rel="stylesheet" href="magick.css" type="text/css" /> 8 </head> 9 <body> 10 <div class="doc-section"> 11 <h3 align="center">Magick::CoderInfo</h3> 12 <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> 13 <p>The following code fragment illustrates how CoderInfo may be used.</p> 14 <pre class="code"> 15 CoderInfo info("GIF"); 16 cout < info->name() << ": (" << info->description() << ") : "; 17 cout << "Readable = "; 18 if ( info->isReadable() ) 19 cout << "true"; 20 else 21 cout << "false"; 22 cout << ", "; 23 cout << "Writable = "; 24 if ( info->isWritable() ) 25 cout << "true"; 26 else 27 cout << "false"; 28 cout << ", "; 29 cout << "Multiframe = "; 30 if ( info->isMultiframe() ) 31 cout << "true"; 32 else 33 cout << "false"; 34 cout << endl; 35 </pre> 36 <p style="margin-bottom: 0cm">The methods available in the <i>CoderInfo</i> class are shown in the following table:</p> 37 <br /> 38 <ul><p align="center" style="margin-bottom: 0cm"><b>CoderInfo Methods</b></p> 39 <table width="100%" border="1" cellpadding="2" cellspacing="2"> 40 <tr> 41 <td> 42 <p align="center"><b>Method</b></p></td> 43 <td> 44 <p align="center"><b>Returns</b></p></td> 45 <td> 46 <p align="center"><b>Signature</b></p></td> 47 <td> 48 <p align="center"><b>Description</b></p></td></tr> 49 <tr> 50 <td> 51 <p align="center"><a name="CoderInfo"></a><font size="2">CoderInfo</font></p></td> 52 <td bgcolor="#999999"></td> 53 <td> 54 <p><font size="2">void</font></p></td> 55 <td> 56 <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> 57 <tr> 58 <td> 59 <p align="center"><a name="name"></a><font size="2">name</font></p></td> 60 <td> 61 <p><font size="2">std::string</font></p></td> 62 <td> 63 <p><font size="2">void</font></p></td> 64 <td> 65 <p><font size="2">Format name (e.g. "GIF").</font></p></td></tr> 66 <tr> 67 <td> 68 <p align="center"><a name="description"></a><font size="2">description</font></p></td> 69 <td> 70 <p><font size="2">std::string</font></p></td> 71 <td> 72 <p><font size="2">void</font></p></td> 73 <td> 74 <p><font size="2">Format description (e.g. "CompuServe graphics interchange format").</font></p></td></tr> 75 <tr> 76 <td> 77 <p align="center"><a name="isReadable"></a><font size="2">isReadable</font></p></td> 78 <td> 79 <p><font size="2">bool</font></p></td> 80 <td> 81 <p><font size="2">void</font></p></td> 82 <td> 83 <p><font size="2">Format is readable.</font></p></td></tr> 84 <tr> 85 <td> 86 <p align="center"><a name="isWritable"></a><font size="2">isWritable</font></p></td> 87 <td> 88 <p><font size="2">bool</font></p></td> 89 <td> 90 <p><font size="2">void</font></p></td> 91 <td> 92 <p><font size="2">Format is writeable.</font></p></td></tr> 93 <tr> 94 <td> 95 <p align="center"><a name="isMultiFrame"></a><font size="2">isMultiFrame</font></p></td> 96 <td> 97 <p><font size="2">bool</font></p></td> 98 <td> 99 <p><font size="2">void</font></p></td> 100 <td> 101 <p><font size="2">Format supports multiple frames.</font></p></td></tr></table></ul> 102 </div> 103 </body> 104 </html> 105
