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<h1>Module memory Methods</h1>
<p class="navigation-index">[<a href="memory.html#AcquireAlignedMemory">AcquireAlignedMemory</a> • <a href="memory.html#AcquireMagickMemory">AcquireMagickMemory</a> • <a href="memory.html#AcquireQuantumMemory">AcquireQuantumMemory</a> • <a href="memory.html#AcquireVirtualMemory">AcquireVirtualMemory</a> • <a href="memory.html#CopyMagickMemory">CopyMagickMemory</a> • <a href="memory.html#GetMagickMemoryMethods">GetMagickMemoryMethods</a> • <a href="memory.html#GetVirtualMemoryBlob">GetVirtualMemoryBlob</a> • <a href="memory.html#RelinquishAlignedMemory">RelinquishAlignedMemory</a> • <a href="memory.html#RelinquishMagickMemory">RelinquishMagickMemory</a> • <a href="memory.html#RelinquishVirtualMemory">RelinquishVirtualMemory</a> • <a href="memory.html#ResetMagickMemory">ResetMagickMemory</a> • <a href="memory.html#ResizeMagickMemory">ResizeMagickMemory</a> • <a href="memory.html#ResizeQuantumMemory">ResizeQuantumMemory</a> • <a href="memory.html#SetMagickMemoryMethods">SetMagickMemoryMethods</a>]</p>
<h2><a href="http://www.imagemagick.org/api/MagickCore/memory_8c.html" id="AcquireAlignedMemory">AcquireAlignedMemory</a></h2>
<div class="doc-section">
<p>AcquireAlignedMemory() returns a pointer to a block of memory at least size bytes whose address is a multiple of 16*sizeof(void *).</p>
<p>The format of the AcquireAlignedMemory method is:</p>
<pre class="code">
void *AcquireAlignedMemory(const size_t count,const size_t quantum)
</pre>
<p>A description of each parameter follows:</p>
<h5>count</h5>
<p>the number of quantum elements to allocate.</p>
<h5>quantum</h5>
<p>the number of bytes in each quantum.</p>
</div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/memory_8c.html" id="AcquireMagickMemory">AcquireMagickMemory</a></h2>
<div class="doc-section">
<p>AcquireMagickMemory() returns a pointer to a block of memory at least size bytes suitably aligned for any use.</p>
<p>The format of the AcquireMagickMemory method is:</p>
<pre class="code">
void *AcquireMagickMemory(const size_t size)
</pre>
<p>A description of each parameter follows:</p>
<h5>size</h5>
<p>the size of the memory in bytes to allocate.</p>
</div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/memory_8c.html" id="AcquireQuantumMemory">AcquireQuantumMemory</a></h2>
<div class="doc-section">
<p>AcquireQuantumMemory() returns a pointer to a block of memory at least count * quantum bytes suitably aligned for any use.</p>
<p>The format of the AcquireQuantumMemory method is:</p>
<pre class="code">
void *AcquireQuantumMemory(const size_t count,const size_t quantum)
</pre>
<p>A description of each parameter follows:</p>
<h5>count</h5>
<p>the number of quantum elements to allocate.</p>
<h5>quantum</h5>
<p>the number of bytes in each quantum.</p>
</div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/memory_8c.html" id="AcquireVirtualMemory">AcquireVirtualMemory</a></h2>
<div class="doc-section">
<p>AcquireVirtualMemory() allocates a pointer to a block of memory at least size bytes suitably aligned for any use.</p>
<p>The format of the AcquireVirtualMemory method is:</p>
<pre class="code">
MemoryInfo *AcquireVirtualMemory(const size_t count,const size_t quantum)
</pre>
<p>A description of each parameter follows:</p>
<h5>count</h5>
<p>the number of quantum elements to allocate.</p>
<h5>quantum</h5>
<p>the number of bytes in each quantum.</p>
</div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/memory_8c.html" id="CopyMagickMemory">CopyMagickMemory</a></h2>
<div class="doc-section">
<p>CopyMagickMemory() copies size bytes from memory area source to the destination. Copying between objects that overlap will take place correctly. It returns destination.</p>
<p>The format of the CopyMagickMemory method is:</p>
<pre class="code">
void *CopyMagickMemory(void *destination,const void *source,
const size_t size)
</pre>
<p>A description of each parameter follows:</p>
<h5>destination</h5>
<p>the destination.</p>
<h5>source</h5>
<p>the source.</p>
<h5>size</h5>
<p>the size of the memory in bytes to allocate.</p>
</div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/memory_8c.html" id="GetMagickMemoryMethods">GetMagickMemoryMethods</a></h2>
<div class="doc-section">
<p>GetMagickMemoryMethods() gets the methods to acquire, resize, and destroy memory.</p>
<p>The format of the GetMagickMemoryMethods() method is:</p>
<pre class="code">
void GetMagickMemoryMethods(AcquireMemoryHandler *acquire_memory_handler,
ResizeMemoryHandler *resize_memory_handler,
DestroyMemoryHandler *destroy_memory_handler)
</pre>
<p>A description of each parameter follows:</p>
<h5>acquire_memory_handler</h5>
<p>method to acquire memory (e.g. malloc).</p>
<h5>resize_memory_handler</h5>
<p>method to resize memory (e.g. realloc).</p>
<h5>destroy_memory_handler</h5>
<p>method to destroy memory (e.g. free).</p>
</div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/memory_8c.html" id="GetVirtualMemoryBlob">GetVirtualMemoryBlob</a></h2>
<div class="doc-section">
<p>GetVirtualMemoryBlob() returns the virtual memory blob associated with the specified MemoryInfo structure.</p>
<p>The format of the GetVirtualMemoryBlob method is:</p>
<pre class="code">
void *GetVirtualMemoryBlob(const MemoryInfo *memory_info)
</pre>
<p>A description of each parameter follows:</p>
<h5>memory_info</h5>
<p>The MemoryInfo structure. </p>
</div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/memory_8c.html" id="RelinquishAlignedMemory">RelinquishAlignedMemory</a></h2>
<div class="doc-section">
<p>RelinquishAlignedMemory() frees memory acquired with AcquireAlignedMemory() or reuse.</p>
<p>The format of the RelinquishAlignedMemory method is:</p>
<pre class="code">
void *RelinquishAlignedMemory(void *memory)
</pre>
<p>A description of each parameter follows:</p>
<h5>memory</h5>
<p>A pointer to a block of memory to free for reuse.</p>
</div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/memory_8c.html" id="RelinquishMagickMemory">RelinquishMagickMemory</a></h2>
<div class="doc-section">
<p>RelinquishMagickMemory() frees memory acquired with AcquireMagickMemory() or AcquireQuantumMemory() for reuse.</p>
<p>The format of the RelinquishMagickMemory method is:</p>
<pre class="code">
void *RelinquishMagickMemory(void *memory)
</pre>
<p>A description of each parameter follows:</p>
<h5>memory</h5>
<p>A pointer to a block of memory to free for reuse.</p>
</div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/memory_8c.html" id="RelinquishVirtualMemory">RelinquishVirtualMemory</a></h2>
<div class="doc-section">
<p>RelinquishVirtualMemory() frees memory acquired with AcquireVirtualMemory().</p>
<p>The format of the RelinquishVirtualMemory method is:</p>
<pre class="code">
MemoryInfo *RelinquishVirtualMemory(MemoryInfo *memory_info)
</pre>
<p>A description of each parameter follows:</p>
<h5>memory_info</h5>
<p>A pointer to a block of memory to free for reuse.</p>
</div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/memory_8c.html" id="ResetMagickMemory">ResetMagickMemory</a></h2>
<div class="doc-section">
<p>ResetMagickMemory() fills the first size bytes of the memory area pointed to by memory with the constant byte c.</p>
<p>The format of the ResetMagickMemory method is:</p>
<pre class="code">
void *ResetMagickMemory(void *memory,int byte,const size_t size)
</pre>
<p>A description of each parameter follows:</p>
<h5>memory</h5>
<p>a pointer to a memory allocation.</p>
<h5>byte</h5>
<p>set the memory to this value.</p>
<h5>size</h5>
<p>size of the memory to reset.</p>
</div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/memory_8c.html" id="ResizeMagickMemory">ResizeMagickMemory</a></h2>
<div class="doc-section">
<p>ResizeMagickMemory() changes the size of the memory and returns a pointer to the (possibly moved) block. The contents will be unchanged up to the lesser of the new and old sizes.</p>
<p>The format of the ResizeMagickMemory method is:</p>
<pre class="code">
void *ResizeMagickMemory(void *memory,const size_t size)
</pre>
<p>A description of each parameter follows:</p>
<h5>memory</h5>
<p>A pointer to a memory allocation.</p>
<h5>size</h5>
<p>the new size of the allocated memory.</p>
</div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/memory_8c.html" id="ResizeQuantumMemory">ResizeQuantumMemory</a></h2>
<div class="doc-section">
<p>ResizeQuantumMemory() changes the size of the memory and returns a pointer to the (possibly moved) block. The contents will be unchanged up to the lesser of the new and old sizes.</p>
<p>The format of the ResizeQuantumMemory method is:</p>
<pre class="code">
void *ResizeQuantumMemory(void *memory,const size_t count,
const size_t quantum)
</pre>
<p>A description of each parameter follows:</p>
<h5>memory</h5>
<p>A pointer to a memory allocation.</p>
<h5>count</h5>
<p>the number of quantum elements to allocate.</p>
<h5>quantum</h5>
<p>the number of bytes in each quantum.</p>
</div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/memory_8c.html" id="SetMagickMemoryMethods">SetMagickMemoryMethods</a></h2>
<div class="doc-section">
<p>SetMagickMemoryMethods() sets the methods to acquire, resize, and destroy memory. Your custom memory methods must be set prior to the MagickCoreGenesis() method.</p>
<p>The format of the SetMagickMemoryMethods() method is:</p>
<pre class="code">
SetMagickMemoryMethods(AcquireMemoryHandler acquire_memory_handler,
ResizeMemoryHandler resize_memory_handler,
DestroyMemoryHandler destroy_memory_handler)
</pre>
<p>A description of each parameter follows:</p>
<h5>acquire_memory_handler</h5>
<p>method to acquire memory (e.g. malloc).</p>
<h5>resize_memory_handler</h5>
<p>method to resize memory (e.g. realloc).</p>
<h5>destroy_memory_handler</h5>
<p>method to destroy memory (e.g. free).</p>
</div>
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