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  <title>ImageMagick: MagickWand, C API for ImageMagick</title>
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<p>The MagickWand API is the recommended interface between the C programming language and the ImageMagick image processing libraries.  Unlike the <a href="../www/magick-core.html">MagickCore</a> C API, MagickWand uses only a few opaque types.  Accessors are available to set or get important wand attributes.  A description of the MagickWand public methods are found here:</p>

<ul>
  <li><a href="../www/api/magick-wand.html">Magick Wand Methods</a></li>
  <li><a href="../www/api/magick-attribute.html">Set or Get Magick Wand Attributes</a></li>
  <li><a href="../www/api/magick-image.html">Magick Wand Image Methods</a></li>
  <li><a href="../www/api/pixel-iterator.html">Pixel Iterator Methods</a></li>
  <li><a href="../www/api/pixel-wand.html">Pixel Wand Methods</a></li>
  <li><a href="../www/api/drawing-wand.html">Image Vector Drawing</a></li>
</ul>

<p>After you write your MagickWand program, compile it like this:</p>

<pre class="text">
  cc `Wand-config --cflags --cppflags` wand.c `Wand-config --ldflags --libs`
</pre>

<p>Here is a example program that utilizes the MagickWand API to get you started, <a href="../www/source/wand.c">wand.c</a>. It reads a GIF image, creates a thumbnail, and writes it to disk in the PNG image format.</p>

<div class='viewport'>
<pre class="code">
  #include &lt;stdio.h>
  #include &lt;wand/MagickWand.h>
  
  int main(int argc,char **argv)
  {
  #define ThrowWandException(wand) \
  { \
    char \
      *description; \
   \
    ExceptionType \
      severity; \
   \
    description=MagickGetException(wand,&severity); \
    (void) fprintf(stderr,"%s %s %ld %s\n",GetMagickModule(),description); \
    description=(char *) MagickRelinquishMemory(description); \
    exit(-1); \
  }
  
    MagickBooleanType
      status;
  
    MagickWand
      *magick_wand;
  
    /*
      Read an image.
    */
    MagickWandGenesis();
    magick_wand=NewMagickWand();  
    status=MagickReadImage(magick_wand,"image.gif");
    if (status == MagickFalse)
      ThrowWandException(magick_wand);
    /*
      Turn the images into a thumbnail sequence.
    */
    MagickResetIterator(magick_wand);
    while (MagickNextImage(magick_wand) != MagickFalse)
      MagickResizeImage(magick_wand,106,80,LanczosFilter,1.0);
    /*
      Write the image as MIFF and destroy it.
    */
    status=MagickWriteImages(magick_wand,"image.png",MagickTrue);
    if (status == MagickFalse)
      ThrowWandException(magick_wand);
    magick_wand=DestroyMagickWand(magick_wand);
    MagickWandTerminus();
    return(0);
  }
</pre>
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