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<h2 title="Class mxPngEncodeParam.Palette" class="title">Class mxPngEncodeParam.Palette</h2>
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<pre>public static class <span class="strong">mxPngEncodeParam.Palette</span>
extends <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html" title="class in com.mxgraph.util.png">mxPngEncodeParam</a></pre>
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<code><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Gray.html" title="class in com.mxgraph.util.png">mxPngEncodeParam.Gray</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html" title="class in com.mxgraph.util.png">mxPngEncodeParam.Palette</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.RGB.html" title="class in com.mxgraph.util.png">mxPngEncodeParam.RGB</a></code></li>
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<code><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#bitDepth">bitDepth</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#bitDepthSet">bitDepthSet</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#INTENT_ABSOLUTE">INTENT_ABSOLUTE</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#INTENT_PERCEPTUAL">INTENT_PERCEPTUAL</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#INTENT_RELATIVE">INTENT_RELATIVE</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#INTENT_SATURATION">INTENT_SATURATION</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#PNG_FILTER_AVERAGE">PNG_FILTER_AVERAGE</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#PNG_FILTER_NONE">PNG_FILTER_NONE</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#PNG_FILTER_PAETH">PNG_FILTER_PAETH</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#PNG_FILTER_SUB">PNG_FILTER_SUB</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#PNG_FILTER_UP">PNG_FILTER_UP</a></code></li>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><strong><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#mxPngEncodeParam.Palette()">mxPngEncodeParam.Palette</a></strong>()</code>
<div class="block">Constructs an instance of <code>PNGEncodeParam.Palette</code>.</div>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#getBackgroundPaletteIndex()">getBackgroundPaletteIndex</a></strong>()</code>
<div class="block">Returns the palette index of the suggested background color.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int[]</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#getPalette()">getPalette</a></strong>()</code>
<div class="block">Returns the current RGB palette.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>byte[]</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#getPaletteTransparency()">getPaletteTransparency</a></strong>()</code>
<div class="block">Returns the alpha values associated with each palette entry.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#isBackgroundSet()">isBackgroundSet</a></strong>()</code>
<div class="block">Returns true if a 'bKGD' chunk will be output.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#isPaletteSet()">isPaletteSet</a></strong>()</code>
<div class="block">Returns true if a 'PLTE' chunk will be output.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#setBackgroundPaletteIndex(int)">setBackgroundPaletteIndex</a></strong>(int&nbsp;index)</code>
<div class="block">Sets the palette index of the suggested background color.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#setBitDepth(int)">setBitDepth</a></strong>(int&nbsp;bitDepth)</code>
<div class="block">Sets the desired bit depth for a palette image.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#setPalette(int[])">setPalette</a></strong>(int[]&nbsp;rgb)</code>
<div class="block">Sets the RGB palette of the image to be encoded.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#setPaletteTransparency(byte[])">setPaletteTransparency</a></strong>(byte[]&nbsp;alpha)</code>
<div class="block">Sets the alpha values associated with each palette entry.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#unsetBackground()">unsetBackground</a></strong>()</code>
<div class="block">Suppresses the 'bKGD' chunk from being output.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.Palette.html#unsetPalette()">unsetPalette</a></strong>()</code>
<div class="block">Suppresses the 'PLTE' chunk from being output.</div>
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<h3>Methods inherited from class&nbsp;com.mxgraph.util.png.<a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html" title="class in com.mxgraph.util.png">mxPngEncodeParam</a></h3>
<code><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#addPrivateChunk(java.lang.String, byte[])">addPrivateChunk</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#filterRow(byte[], byte[], byte[][], int, int)">filterRow</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getBitDepth()">getBitDepth</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getChromaticity()">getChromaticity</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getCompressedText()">getCompressedText</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getDefaultEncodeParam(java.awt.image.RenderedImage)">getDefaultEncodeParam</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getGamma()">getGamma</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getICCProfileData()">getICCProfileData</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getInterlacing()">getInterlacing</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getModificationTime()">getModificationTime</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getNumPrivateChunks()">getNumPrivateChunks</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getPaletteHistogram()">getPaletteHistogram</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getPhysicalDimension()">getPhysicalDimension</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getPrivateChunkData(int)">getPrivateChunkData</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getPrivateChunkType(int)">getPrivateChunkType</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getSignificantBits()">getSignificantBits</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getSRGBIntent()">getSRGBIntent</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#getText()">getText</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isChromaticitySet()">isChromaticitySet</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isCompressedTextSet()">isCompressedTextSet</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isGammaSet()">isGammaSet</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isICCProfileDataSet()">isICCProfileDataSet</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isModificationTimeSet()">isModificationTimeSet</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isPaletteHistogramSet()">isPaletteHistogramSet</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isPhysicalDimensionSet()">isPhysicalDimensionSet</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isSignificantBitsSet()">isSignificantBitsSet</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isSRGBIntentSet()">isSRGBIntentSet</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isSuggestedPaletteSet()">isSuggestedPaletteSet</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isTextSet()">isTextSet</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isTransparencySet()">isTransparencySet</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#paethPredictor(int, int, int)">paethPredictor</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#removeAllPrivateChunks()">removeAllPrivateChunks</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#removeUnsafeToCopyPrivateChunks()">removeUnsafeToCopyPrivateChunks</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setChromaticity(float[])">setChromaticity</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setChromaticity(float, float, float, float, float, float, float, float)">setChromaticity</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setCompressedText(java.lang.String[])">setCompressedText</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setGamma(float)">setGamma</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setICCProfileData(byte[])">setICCProfileData</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setInterlacing(boolean)">setInterlacing</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setModificationTime(java.util.Date)">setModificationTime</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setPaletteHistogram(int[])">setPaletteHistogram</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setPhysicalDimension(int[])">setPhysicalDimension</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setPhysicalDimension(int, int, int)">setPhysicalDimension</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setSignificantBits(int[])">setSignificantBits</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setSRGBIntent(int)">setSRGBIntent</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setSuggestedPalette(com.mxgraph.util.png.mxPngSuggestedPaletteEntry[])">setSuggestedPalette</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setText(java.lang.String[])">setText</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetBitDepth()">unsetBitDepth</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetChromaticity()">unsetChromaticity</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetCompressedText()">unsetCompressedText</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetGamma()">unsetGamma</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetICCProfileData()">unsetICCProfileData</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetModificationTime()">unsetModificationTime</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetPaletteHistogram()">unsetPaletteHistogram</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetPhysicalDimension()">unsetPhysicalDimension</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetSignificantBits()">unsetSignificantBits</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetSRGBIntent()">unsetSRGBIntent</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetSuggestedPalette()">unsetSuggestedPalette</a>, <a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetText()">unsetText</a>, <a 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<code><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</a></code></li>
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<h4>mxPngEncodeParam.Palette</h4>
<pre>public&nbsp;mxPngEncodeParam.Palette()</pre>
<div class="block">Constructs an instance of <code>PNGEncodeParam.Palette</code>.</div>
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<h4>unsetBackground</h4>
<pre>public&nbsp;void&nbsp;unsetBackground()</pre>
<div class="block">Suppresses the 'bKGD' chunk from being output.</div>
<dl>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#unsetBackground()">unsetBackground</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html" title="class in com.mxgraph.util.png">mxPngEncodeParam</a></code></dd>
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<h4>isBackgroundSet</h4>
<pre>public&nbsp;boolean&nbsp;isBackgroundSet()</pre>
<div class="block">Returns true if a 'bKGD' chunk will be output.</div>
<dl>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#isBackgroundSet()">isBackgroundSet</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html" title="class in com.mxgraph.util.png">mxPngEncodeParam</a></code></dd>
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<a name="setBitDepth(int)">
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<h4>setBitDepth</h4>
<pre>public&nbsp;void&nbsp;setBitDepth(int&nbsp;bitDepth)</pre>
<div class="block">Sets the desired bit depth for a palette image. The bit
depth must be one of 1, 2, 4, or 8, or else an
<code>IllegalArgumentException</code> will be thrown.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html#setBitDepth(int)">setBitDepth</a></code>&nbsp;in class&nbsp;<code><a href="../../../../com/mxgraph/util/png/mxPngEncodeParam.html" title="class in com.mxgraph.util.png">mxPngEncodeParam</a></code></dd>
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<h4>setPalette</h4>
<pre>public&nbsp;void&nbsp;setPalette(int[]&nbsp;rgb)</pre>
<div class="block">Sets the RGB palette of the image to be encoded.
The <code>rgb</code> parameter contains alternating
R, G, B values for each color index used in the image.
The number of elements must be a multiple of 3 between
3 and 3*256.
<p> The 'PLTE' chunk will encode this information.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>rgb</code> - An array of <code>int</code>s.</dd></dl>
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<h4>getPalette</h4>
<pre>public&nbsp;int[]&nbsp;getPalette()</pre>
<div class="block">Returns the current RGB palette.
<p> If the palette has not previously been set, or has been
unset, an <code>IllegalStateException</code> will be thrown.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>An array of <code>int</code>s.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</a></code> - if the palette is not set.</dd></dl>
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<h4>unsetPalette</h4>
<pre>public&nbsp;void&nbsp;unsetPalette()</pre>
<div class="block">Suppresses the 'PLTE' chunk from being output.</div>
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<pre>public&nbsp;boolean&nbsp;isPaletteSet()</pre>
<div class="block">Returns true if a 'PLTE' chunk will be output.</div>
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<h4>setBackgroundPaletteIndex</h4>
<pre>public&nbsp;void&nbsp;setBackgroundPaletteIndex(int&nbsp;index)</pre>
<div class="block">Sets the palette index of the suggested background color.
<p> The 'bKGD' chunk will encode this information.</div>
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<a name="getBackgroundPaletteIndex()">
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<h4>getBackgroundPaletteIndex</h4>
<pre>public&nbsp;int&nbsp;getBackgroundPaletteIndex()</pre>
<div class="block">Returns the palette index of the suggested background color.
<p> If the background palette index has not previously been
set, or has been unset, an
<code>IllegalStateException</code> will be thrown.</div>
<dl><dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</a></code> - if the palette index is not set.</dd></dl>
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<h4>setPaletteTransparency</h4>
<pre>public&nbsp;void&nbsp;setPaletteTransparency(byte[]&nbsp;alpha)</pre>
<div class="block">Sets the alpha values associated with each palette entry.
The <code>alpha</code> parameter should have as many entries
as there are RGB triples in the palette.
<p> The 'tRNS' chunk will encode this information.</div>
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<h4>getPaletteTransparency</h4>
<pre>public&nbsp;byte[]&nbsp;getPaletteTransparency()</pre>
<div class="block">Returns the alpha values associated with each palette entry.
<p> If the palette transparency has not previously been
set, or has been unset, an
<code>IllegalStateException</code> will be thrown.</div>
<dl><dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</a></code> - if the palette transparency is
not set.</dd></dl>
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