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<P><a name="__index__"></a></P>
<!-- INDEX BEGIN -->
<ul>
<li><a href="#name">NAME</a></li>
<li><a href="#synopsis">SYNOPSIS</a></li>
<li><a href="#function_descriptions">FUNCTION DESCRIPTIONS</a></li>
<ul>
<li><a href="#destroypixeliterator">DestroyPixelIterator</a></li>
<li><a href="#newpixeliterator">NewPixelIterator</a></li>
<li><a href="#newpixelregioniterator">NewPixelRegionIterator</a></li>
<li><a href="#pixeliteratorgetexception">PixelIteratorGetException</a></li>
<li><a href="#pixelgetnextrow">PixelGetNextRow</a></li>
<li><a href="#pixelresetiterator">PixelResetIterator</a></li>
<li><a href="#pixelsetiteratorrow">PixelSetIteratorRow</a></li>
<li><a href="#pixelsynciterator">PixelSyncIterator</a></li>
</ul>
</ul>
<!-- INDEX END -->
<hr />
<P>
</P>
<h1><a name="name">NAME</a></h1>
<P>pixel_iterator - Pixel Iterator</P>
<P>
</P>
<hr />
<h1><a name="synopsis">SYNOPSIS</a></h1>
<P>MagickBooleanType <strong>DestroyPixelIterator</strong>( PixelIterator *iterator );</P>
<P>PixelIterator <strong>NewPixelIterator</strong>( MagickWand *wand );</P>
<P>PixelIterator <strong>NewPixelRegionIterator</strong>( MagickWand *wand, const long x, const long y, const unsigned long columns, const unsigned long rows, const MagickBooleanType modify );</P>
<P>PixelWand * <strong>PixelGetNextRow</strong>( PixelIterator *iterator );</P>
<P>char * <strong>PixelIteratorGetException</strong>( const Pixeliterator *iterator, ExceptionType *severity );</P>
<P>void <strong>PixelResetIterator</strong>( PixelIterator *iterator );</P>
<P>MagickBooleanType <strong>PixelSetIteratorRow</strong>( PixelIterator *iterator, const long row );</P>
<P>MagickBooleanType <strong>PixelSyncIterator</strong>( PixelIterator *iterator );</P>
<P>
</P>
<hr />
<h1><a name="function_descriptions">FUNCTION DESCRIPTIONS</a></h1>
<P>
</P>
<h2><a name="destroypixeliterator">DestroyPixelIterator</a></h2>
<blockquote>DestroyPixelIterator() deallocates resources associated with a PixelIterator. </blockquote><P>The format of the DestroyPixelIterator method is:</P>
<blockquote>MagickBooleanType DestroyPixelIterator ( PixelIterator *iterator ); </blockquote><P>A description of each parameter follows:</P>
<dl>
<dt><strong><a name="item_o_iterator_3a">iterator:</a></strong><br />
</dt>
<DD>
The pixel iterator.
</dd>
<P></P></dl>
<P>
</P>
<h2><a name="newpixeliterator">NewPixelIterator</a></h2>
<blockquote>NewPixelIterator() returns a new pixel iterator. </blockquote><P>The format of the NewPixelIterator method is:</P>
<blockquote>PixelIterator NewPixelIterator ( MagickWand *wand ); </blockquote><P>A description of each parameter follows:</P>
<dl>
<dt><strong><a name="item_o_wand_3a">wand:</a></strong><br />
</dt>
<DD>
The magick wand.
</dd>
<P></P></dl>
<P>
</P>
<h2><a name="newpixelregioniterator">NewPixelRegionIterator</a></h2>
<blockquote>NewPixelRegionIterator() returns a new pixel iterator. </blockquote><P>The format of the NewPixelRegionIterator method is:</P>
<blockquote>PixelIterator NewPixelRegionIterator ( MagickWand *wand, const long x, const long y, const unsigned long columns, const unsigned long rows, const MagickBooleanType modify ); </blockquote><P>A description of each parameter follows:</P>
<dl>
<dt><strong>wand:</strong><br />
</dt>
<DD>
The magick wand.
</dd>
<P></P>
<dt><strong><a name="item_o_x_2cy_2ccolumns_2crows_3a">x,y,columns,rows:</a></strong><br />
</dt>
<DD>
These values define the perimeter of a region of pixels.
</dd>
<P></P></dl>
<P>
</P>
<h2><a name="pixeliteratorgetexception">PixelIteratorGetException</a></h2>
<blockquote>PixelIteratorGetException() returns the severity, reason, and description of any error that occurs when using other methods in this API. </blockquote><P>The format of the PixelIteratorGetException method is:</P>
<blockquote>char *PixelIteratorGetException ( const Pixeliterator *iterator, <A HREF="types.html#ExceptionType">ExceptionType</A> *severity ); </blockquote><P>A description of each parameter follows:</P>
<dl>
<dt><strong>iterator:</strong><br />
</dt>
<DD>
The pixel iterator.
</dd>
<P></P>
<dt><strong><a name="item_o_severity_3a">severity:</a></strong><br />
</dt>
<DD>
The severity of the error is returned here.
</dd>
<P></P></dl>
<P>
</P>
<h2><a name="pixelgetnextrow">PixelGetNextRow</a></h2>
<blockquote>PixelGetNextRow() returns the next row from the pixel iterator. </blockquote><P>The format of the PixelGetNextRow method is:</P>
<blockquote>PixelWand *PixelGetNextRow ( PixelIterator *iterator ); </blockquote><P>A description of each parameter follows:</P>
<dl>
<dt><strong>iterator:</strong><br />
</dt>
<DD>
The pixel iterator.
</dd>
<P></P></dl>
<P>
</P>
<h2><a name="pixelresetiterator">PixelResetIterator</a></h2>
<blockquote>PixelResetIterator() resets the pixel iterator. Use it in conjunction with PixelGetNextPixel ( ) to iterate over all the pixels in a pixel container. </blockquote><P>The format of the PixelResetIterator method is:</P>
<blockquote>void PixelResetIterator ( PixelIterator *iterator ); </blockquote><P>A description of each parameter follows:</P>
<dl>
<dt><strong>iterator:</strong><br />
</dt>
<DD>
The pixel iterator.
</dd>
<P></P></dl>
<P>
</P>
<h2><a name="pixelsetiteratorrow">PixelSetIteratorRow</a></h2>
<blockquote>PixelSetIteratorRow() set the pixel iterator row. </blockquote><P>The format of the PixelSetIteratorRow method is:</P>
<blockquote>MagickBooleanType PixelSetIteratorRow ( PixelIterator *iterator, const long row ); </blockquote><P>A description of each parameter follows:</P>
<dl>
<dt><strong>iterator:</strong><br />
</dt>
<DD>
The pixel iterator.
</dd>
<P></P></dl>
<P>
</P>
<h2><a name="pixelsynciterator">PixelSyncIterator</a></h2>
<blockquote>PixelSyncIterator() syncs the pixel iterator. </blockquote><P>The format of the PixelSyncIterator method is:</P>
<blockquote>MagickBooleanType PixelSyncIterator ( PixelIterator *iterator ); </blockquote><P>A description of each parameter follows:</P>
<dl>
<dt><strong>iterator:</strong><br />
</dt>
<DD>
The pixel iterator.
</dd>
</dl>
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