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<title>ImageMagick: MagickCore, C API for ImageMagick: The Registry</title>
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<p class="navigation-index">[ <a href="#DeleteMagickRegistry">DeleteMagickRegistry</a> | <a href="#GetImageFromMagickRegistry">GetImageFromMagickRegistry</a> | <a href="#GetMagickRegistry">GetMagickRegistry</a> | <a href="#SetMagickRegistry">SetMagickRegistry</a> ]</p>
<div style="margin: auto;">
<h2><a name="DeleteMagickRegistry">DeleteMagickRegistry</a></h2>
</div>
<p>DeleteMagickRegistry() deletes an entry in the registry as defined by the id. It returns MagickTrue if the entry is deleted otherwise MagickFalse if no entry is found in the registry that matches the id.</p>
<p>The format of the DeleteMagickRegistry method is:</p>
<pre class="code">
MagickBooleanType DeleteMagickRegistry(const long id)
</pre>
<p>A description of each parameter follows:</p>
<h4>id</h4>
<p>The registry id.</p>
<div style="margin: auto;">
<h2><a name="GetImageFromMagickRegistry">GetImageFromMagickRegistry</a></h2>
</div>
<p>GetImageFromMagickRegistry() gets an image from the registry as defined by its name. If the blob that matches the name is not found, NULL is returned.</p>
<p>The format of the GetImageFromMagickRegistry method is:</p>
<pre class="code">
Image *GetImageFromMagickRegistry(const char *name,long *id,
ExceptionInfo *exception)
</pre>
<p>A description of each parameter follows:</p>
<h4>name</h4>
<p>The name of the image to retrieve from the registry.</p>
<h4>id</h4>
<p>The registry id.</p>
<h4>exception</h4>
<p>Return any errors or warnings in this structure.</p>
<div style="margin: auto;">
<h2><a name="GetMagickRegistry">GetMagickRegistry</a></h2>
</div>
<p>GetMagickRegistry() gets a blob from the registry as defined by the id. If the blob that matches the id is not found, NULL is returned.</p>
<p>The format of the GetMagickRegistry method is:</p>
<pre class="code">
const void *GetMagickRegistry(const long id,RegistryType *type,
size_t *length,ExceptionInfo *exception)
</pre>
<p>A description of each parameter follows:</p>
<h4>id</h4>
<p>The registry id.</p>
<h4>type</h4>
<p>The registry type.</p>
<h4>length</h4>
<p>The blob length in number of bytes.</p>
<h4>exception</h4>
<p>Return any errors or warnings in this structure.</p>
<div style="margin: auto;">
<h2><a name="SetMagickRegistry">SetMagickRegistry</a></h2>
</div>
<p>SetMagickRegistry() sets a blob into the registry and returns a unique ID. If an error occurs, -1 is returned.</p>
<p>The format of the SetMagickRegistry method is:</p>
<pre class="code">
long SetMagickRegistry(const RegistryType type,const void *blob,
const size_t length,ExceptionInfo *exception)
</pre>
<p>A description of each parameter follows:</p>
<h4>type</h4>
<p>The registry type.</p>
<h4>blob</h4>
<p>The address of a Binary Large OBject.</p>
<h4>length</h4>
<p>For a registry type of ImageRegistryType use sizeof(Image) otherise the blob length in number of bytes.</p>
<h4>exception</h4>
<p>Return any errors or warnings in this structure.</p>
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