1 2 3 4 5<!DOCTYPE html> 6<html lang="en"> 7<head> 8 <title>ImageMagick: Magick++, C++ API for ImageMagick</title> 9 <meta charset="utf-8" /> 10 <meta http-equiv="X-UA-Compatible" content="IE=edge" /> 11 <meta name="viewport" content="width=device-width, initial-scale=1" /> 12 <meta http-equiv="content-type" content="text/html; charset=utf-8"/> 13 <meta name="application-name" content="ImageMagick"/> 14 <meta name="description" content="ImageMagick® is a software suite to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats (over 200) including PNG, JPEG, JPEG-2000, GIF, WebP, Postscript, PDF, and SVG. 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The cost of actually copying an 66image (if necessary) is done just before modification and this copy 67is managed automagically by Magick++. De-referenced copies are 68automagically deleted. The image objects support value (rather than 69pointer) semantics so it is trivial to support multiple generations 70of an image in memory at one time. 71</p> 72<p>Magick++ provides integrated support for the <a href="http://www.sgi.com/tech/stl/">Standard 73Template Library</a> (STL) so that the powerful containers available 74(e.g. <a href="http://www.sgi.com/tech/stl/Deque.html">deque</a>, 75<a href="http://www.sgi.com/tech/stl/Vector.html">vector</a>, <a href="http://www.sgi.com/tech/stl/List.html">list</a>, 76and <a href="http://www.sgi.com/tech/stl/Map.html">map</a>) can 77be used to write programs similar to those possible with PERL & 78PerlMagick. STL-compatible template versions of ImageMagick's 79list-style operations are provided so that operations may be 80performed on multiple images stored in STL containers. 81</p> 82<h2 class="magick-header">Documentation</h2> 83<a id="documentation"></a> 84<p>Detailed <a href="api/magick++-classes.html">documentation</a> is 85provided for all Magick++ classes, class methods, and template 86functions which comprise the API. See a <a href="../Magick++/tutorial/Magick++_tutorial.pdf"> Gentle Introduction to Magick++</a> for an introductory tutorial to Magick++. We include the <a href="../Magick++/tutorial/Magick++_tutorial.odt" >source</a> if you want to correct, enhance, or expand the tutorial.</p> 87<h2 class="magick-header">Obtaining Magick++</h2> 88<a id="get"></a> 89<p>Magick++ is included as part of <a href="../index.html">ImageMagick</a> 90source releases and may be retrieved via <a href="download.html">ftp</a> 91or <a href="http://git.imagemagick.org/repos/ImageMagick/Magick++">GIT</a>. 92</p> 93<h2 class="magick-header">Installation</h2> 94<a id="install"></a> 95<p>Once you have the Magick++ sources available, follow these detailed 96<a href="../Magick++/Install.html">installation instructions</a> for UNIX and 97Windows. 98</p> 99<h2 class="magick-header">Usage</h2> 100<p>A helper script named <code>Magick++-config</code> is installed 101under Unix which assists with recalling compilation options required 102to compile and link programs which use Magick++. For example, the 103following command compiles and links the source file <code>demo.cpp</code> 104to produce the executable <code>demo</code> (notice that quotes are 105backward quotes): 106</p> 107<pre> 108c++ `Magick++-config --cxxflags --cppflags` -O2 -o demo demo.cpp \ 109 `Magick++-config --ldflags --libs` 110</pre> 111<p>Set the <code>PKG_CONFIG_PATH</code> environment variable if ImageMagick is not in your default system path:</p> 112 113<pre> 114export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig 115</pre> 116 117<p>Windows users may get started by manually editing a project file 118for one of the Magick++ demo programs. 119</p> 120<p>Note, under Windows (and possibly the Mac) it may be necessary to initialize the ImageMagick library prior to using the Magick++ library. This initialization is performed by passing the path to the ImageMagick DLLs (assumed to be in the same directory as your program) to the InitializeMagick() function call. This is commonly performed by providing the path to your program (argv[0]) as shown in the following example: </p> 121<pre> 122int main( int argc, char ** argv) { 123 InitializeMagick(*argv); 124 ... 125</pre> 126<p>This initialization step is not required under Unix, Linux, 127Cygwin, or any other operating environment that supports the notion 128of <var>installing</var> ImageMagick in a known location. </p> 129<p>Here is a example program that utilizes the Magick++ API to get you started, <a href="../source/magick++.cpp">magick++.cpp</a>. It reads an image, crops it, and writes it to disk in the PNG image format.</p> 130 131<pre class="pre-scrollable"> 132#include <Magick++.h> 133#include <iostream> 134 135using namespace std; 136using namespace Magick; 137 138int main(int argc,char **argv) 139{ 140 InitializeMagick(*argv); 141 142 // Construct the image object. Seperating image construction from the 143 // the read operation ensures that a failure to read the image file 144 // doesn't render the image object useless. 145 Image image; 146 try { 147 // Read a file into image object 148 image.read( "logo:" ); 149 150 // Crop the image to specified size (width, height, xOffset, yOffset) 151 image.crop( Geometry(100,100, 100, 100) ); 152 153 // Write the image to a file 154 image.write( "logo.png" ); 155 } 156 catch( Exception &error_ ) 157 { 158 cout << "Caught exception: " << error_.what() << endl; 159 return 1; 160 } 161 return 0; 162} 163</pre> 164<h2 class="magick-header">Reporting Bugs</h2> 165<a id="bugs"></a> 166<p>Questions regarding usage should be directed to or to report any bugs go to 167<a href="http://www.imagemagick.org/discourse-server/viewforum.html?f=23">Magick++ bug tracking forum</a>. 168</p> 169</div> 170 <footer class="magick-footer"> 171 <p><a href="support.html">Donate</a> • 172 <a href="sitemap.html">Sitemap</a> • 173 <a href="links.html">Related</a> • 174 <a href="architecture.html">Architecture</a> 175</p> 176 <p><a href="magick++.html#">Back to top</a> • 177 <a href="http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x89AB63D48277377A">Public Key</a> • 178 <a href="http://www.imagemagick.org/script/contact.php">Contact Us</a></p> 179 <p><small>© 1999-2016 ImageMagick Studio LLC</small></p> 180 </footer> 181</div><!-- /.container --> 182 183 <script src="https://localhost/ajax/libs/jquery/1.11.3/jquery.min.js"></script> 184 <script src="../js/magick.html"></script> 185</div> 186</body> 187</html> 188
