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    <title>ImageMagick: MagickCore, C API for ImageMagick: The Image Registry</title>
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<p class="text-center"><a href="registry.html#DefineImageRegistry">DefineImageRegistry</a> &#8226; <a href="registry.html#DeleteImageRegistry">DeleteImageRegistry</a> &#8226; <a href="registry.html#GetImageRegistry">GetImageRegistry</a> &#8226; <a href="registry.html#GetNextImageRegistry">GetNextImageRegistry</a> &#8226; <a href="registry.html#RegistryComponentTerminus">RegistryComponentTerminus</a> &#8226; <a href="registry.html#RemoveImageRegistry">RemoveImageRegistry</a> &#8226; <a href="registry.html#ResetImageRegistryIterator">ResetImageRegistryIterator</a> &#8226; <a href="registry.html#SetImageRegistry">SetImageRegistry</a></p>

<h2><a href="http://www.imagemagick.org/api/MagickCore/registry_8c.html" id="DefineImageRegistry">DefineImageRegistry</a></h2>

<p>DefineImageRegistry() associates a key/value pair with the image registry.</p>

<p>The format of the DefineImageRegistry method is:</p>

<pre class="text">
MagickBooleanType DefineImageRegistry(const RegistryType type,
  const char *option,ExceptionInfo *exception)
</pre>

<p>A description of each parameter follows:</p>

<dd>
</dd>

<dd> </dd>
<dl class="dl-horizontal">
<dt>type</dt>
<dd>the type. </dd>

<dd> </dd>
<dt>option</dt>
<dd>the option. </dd>

<dd> </dd>
<dt>exception</dt>
<dd>the exception. </dd>

<dd>  </dd>
</dl>
<h2><a href="http://www.imagemagick.org/api/MagickCore/registry_8c.html" id="DeleteImageRegistry">DeleteImageRegistry</a></h2>

<p>DeleteImageRegistry() deletes a key from the image registry.</p>

<p>The format of the DeleteImageRegistry method is:</p>

<pre class="text">
MagickBooleanType DeleteImageRegistry(const char *key)
</pre>

<p>A description of each parameter follows:</p>

<dd>
</dd>

<dd> </dd>
<dl class="dl-horizontal">
<dt>key</dt>
<dd>the registry. </dd>

<dd>  </dd>
</dl>
<h2><a href="http://www.imagemagick.org/api/MagickCore/registry_8c.html" id="GetImageRegistry">GetImageRegistry</a></h2>

<p>GetImageRegistry() returns a value associated with an image registry key.</p>

<p>The format of the GetImageRegistry method is:</p>

<pre class="text">
void *GetImageRegistry(const RegistryType type,const char *key,
  ExceptionInfo *exception)
</pre>

<p>A description of each parameter follows:</p>

<dd>
</dd>

<dd> </dd>
<dl class="dl-horizontal">
<dt>type</dt>
<dd>the type. </dd>

<dd> </dd>
<dt>key</dt>
<dd>the key. </dd>

<dd> </dd>
<dt>exception</dt>
<dd>the exception. </dd>

<dd>  </dd>
</dl>
<h2><a href="http://www.imagemagick.org/api/MagickCore/registry_8c.html" id="GetNextImageRegistry">GetNextImageRegistry</a></h2>

<p>GetNextImageRegistry() gets the next image registry value.</p>

<p>The format of the GetNextImageRegistry method is:</p>

<pre class="text">
char *GetNextImageRegistry(void)
</pre>

<h2><a href="http://www.imagemagick.org/api/MagickCore/registry_8c.html" id="RegistryComponentTerminus">RegistryComponentTerminus</a></h2>

<p>RegistryComponentTerminus() destroys the registry component.</p>

<p>The format of the DestroyDefines method is:</p>

<pre class="text">
void RegistryComponentTerminus(void)
</pre>

<h2><a href="http://www.imagemagick.org/api/MagickCore/registry_8c.html" id="RemoveImageRegistry">RemoveImageRegistry</a></h2>

<p>RemoveImageRegistry() removes a key from the image registry and returns its value.</p>

<p>The format of the RemoveImageRegistry method is:</p>

<pre class="text">
void *RemoveImageRegistry(const char *key)
</pre>

<p>A description of each parameter follows:</p>

<dd>
</dd>

<dd> </dd>
<dl class="dl-horizontal">
<dt>key</dt>
<dd>the registry. </dd>

<dd>  </dd>
</dl>
<h2><a href="http://www.imagemagick.org/api/MagickCore/registry_8c.html" id="ResetImageRegistryIterator">ResetImageRegistryIterator</a></h2>

<p>ResetImageRegistryIterator() resets the registry iterator.  Use it in conjunction with GetNextImageRegistry() to iterate over all the values in the image registry.</p>

<p>The format of the ResetImageRegistryIterator method is:</p>

<pre class="text">
ResetImageRegistryIterator(void)
</pre>

<h2><a href="http://www.imagemagick.org/api/MagickCore/registry_8c.html" id="SetImageRegistry">SetImageRegistry</a></h2>

<p>SetImageRegistry() associates a value with an image registry key.</p>

<p>The format of the SetImageRegistry method is:</p>

<pre class="text">
MagickBooleanType SetImageRegistry(const RegistryType type,
  const char *key,const void *value,ExceptionInfo *exception)
</pre>

<p>A description of each parameter follows:</p>

<dd>
</dd>

<dd> </dd>
<dl class="dl-horizontal">
<dt>type</dt>
<dd>the type. </dd>

<dd> </dd>
<dt>key</dt>
<dd>the key. </dd>

<dd> </dd>
<dt>value</dt>
<dd>the value. </dd>

<dd> </dd>
<dt>exception</dt>
<dd>the exception. </dd>

<dd>  </dd>
</dl>
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