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Update to CEF 122.1.8
2024-02-24 12:01:31 +01:00
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<title>cef4delphi: uCEFBitmapBitBuffer: Class TCEFBitmapBitBuffer</title>
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<span id="TCEFBitmapBitBuffer"></span><h1 class="cio">Class TCEFBitmapBitBuffer</h1>
<div class="sections">
<div class="one_section"><a class="section" href="#PasDoc-Description">Description</a></div><div class="one_section"><a class="section" href="#PasDoc-Hierarchy">Hierarchy</a></div><div class="one_section"><a class="section" href="#PasDoc-Fields">Fields</a></div><div class="one_section"><a class="section" href="#PasDoc-Methods">Methods</a></div><div class="one_section"><a class="section" href="#PasDoc-Properties">Properties</a></div></div>
<span id="PasDoc-Description"></span><h2 class="unit">Unit</h2>
<p class="unitlink">
<a href="uCEFBitmapBitBuffer.html">uCEFBitmapBitBuffer</a></p>
<h2 class="declaration">Declaration</h2>
<p class="declaration">
<code>type TCEFBitmapBitBuffer = class(TObject)</code></p>
<h2 class="description">Description</h2>
<p>
Class that stores a copy of the raw bitmap buffer sent by CEF in the TChromiumCore.OnPaint event. </p>
<span id="PasDoc-Hierarchy"></span><h2 class="hierarchy">Hierarchy</h2>
<ul class="hierarchy"><li class="ancestor">TObject</li>
<li class="thisitem">TCEFBitmapBitBuffer</li></ul><h2 class="overview">Overview</h2>
<span id="PasDoc-Fields"></span><h3 class="summary">Fields</h3>
<table class="summary wide_list">
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><code><strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#FBuffer">FBuffer</a></strong>: pointer;</code></td>
</tr>
<tr class="list2">
<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><code><strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#FImageWidth">FImageWidth</a></strong>: integer;</code></td>
</tr>
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><code><strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#FImageHeight">FImageHeight</a></strong>: integer;</code></td>
</tr>
<tr class="list2">
<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><code><strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#FBufferWidth">FBufferWidth</a></strong>: integer;</code></td>
</tr>
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><code><strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#FBufferHeight">FBufferHeight</a></strong>: integer;</code></td>
</tr>
</table>
<span id="PasDoc-Methods"></span><h3 class="summary">Methods</h3>
<table class="summary wide_list">
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><code>function <strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#GetBufferScanlineSize">GetBufferScanlineSize</a></strong>: integer;</code></td>
</tr>
<tr class="list2">
<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><code>function <strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#GetScanlineSize">GetScanlineSize</a></strong>: integer;</code></td>
</tr>
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><code>function <strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#GetBufferLength">GetBufferLength</a></strong>: integer;</code></td>
</tr>
<tr class="list2">
<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><code>function <strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#GetEmpty">GetEmpty</a></strong>: boolean;</code></td>
</tr>
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><code>function <strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#GetScanline-integer-">GetScanline</a></strong>(y : integer) : PByte;</code></td>
</tr>
<tr class="list2">
<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><code>procedure <strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#CreateBuffer">CreateBuffer</a></strong>;</code></td>
</tr>
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><code>procedure <strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#DestroyBuffer">DestroyBuffer</a></strong>;</code></td>
</tr>
<tr class="list2">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><code>constructor <strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#Create-integer-integer-">Create</a></strong>(aWidth, aHeight : integer);</code></td>
</tr>
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><code>destructor <strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#Destroy">Destroy</a></strong>; override;</code></td>
</tr>
<tr class="list2">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><code>procedure <strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#UpdateSize-integer-integer-">UpdateSize</a></strong>(aWidth, aHeight : integer);</code></td>
</tr>
</table>
<span id="PasDoc-Properties"></span><h3 class="summary">Properties</h3>
<table class="summary wide_list">
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><code>property <strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#Width">Width</a></strong> : integer read <a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#FImageWidth">FImageWidth</a>;</code></td>
</tr>
<tr class="list2">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><code>property <strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#Height">Height</a></strong> : integer read <a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#FImageHeight">FImageHeight</a>;</code></td>
</tr>
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><code>property <strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#BufferLength">BufferLength</a></strong> : integer read <a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#GetBufferLength">GetBufferLength</a>;</code></td>
</tr>
<tr class="list2">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><code>property <strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#Empty">Empty</a></strong> : boolean read <a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#GetEmpty">GetEmpty</a>;</code></td>
</tr>
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><code>property <strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#Scanline">Scanline</a></strong>[y: integer]: PByte read <a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#GetScanline-integer-">GetScanline</a>;</code></td>
</tr>
<tr class="list2">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><code>property <strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#ScanlineSize">ScanlineSize</a></strong> : integer read <a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#GetScanlineSize">GetScanlineSize</a>;</code></td>
</tr>
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><code>property <strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#BufferScanlineSize">BufferScanlineSize</a></strong> : integer read <a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#GetBufferScanlineSize">GetBufferScanlineSize</a>;</code></td>
</tr>
<tr class="list2">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><code>property <strong><a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#BufferBits">BufferBits</a></strong> : pointer read <a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#FBuffer">FBuffer</a>;</code></td>
</tr>
</table>
<h2 class="description">Description</h2>
<h3 class="detail">Fields</h3>
<table class="detail wide_list">
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><span id="FBuffer"></span><code><strong>FBuffer</strong>: pointer;</code></td>
</tr>
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<p class="nodescription">This item has no description.</p></td></tr>
</table>
<table class="detail wide_list">
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<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><span id="FImageWidth"></span><code><strong>FImageWidth</strong>: integer;</code></td>
</tr>
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<p class="nodescription">This item has no description.</p></td></tr>
</table>
<table class="detail wide_list">
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<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><span id="FImageHeight"></span><code><strong>FImageHeight</strong>: integer;</code></td>
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<p class="nodescription">This item has no description.</p></td></tr>
</table>
<table class="detail wide_list">
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<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><span id="FBufferWidth"></span><code><strong>FBufferWidth</strong>: integer;</code></td>
</tr>
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<p class="nodescription">This item has no description.</p></td></tr>
</table>
<table class="detail wide_list">
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<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><span id="FBufferHeight"></span><code><strong>FBufferHeight</strong>: integer;</code></td>
</tr>
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<p class="nodescription">This item has no description.</p></td></tr>
</table>
<h3 class="detail">Methods</h3>
<table class="detail wide_list">
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<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><span id="GetBufferScanlineSize"></span><code>function <strong>GetBufferScanlineSize</strong>: integer;</code></td>
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<p class="nodescription">This item has no description.</p></td></tr>
</table>
<table class="detail wide_list">
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<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><span id="GetScanlineSize"></span><code>function <strong>GetScanlineSize</strong>: integer;</code></td>
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<p class="nodescription">This item has no description.</p></td></tr>
</table>
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<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><span id="GetBufferLength"></span><code>function <strong>GetBufferLength</strong>: integer;</code></td>
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<p class="nodescription">This item has no description.</p></td></tr>
</table>
<table class="detail wide_list">
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<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><span id="GetEmpty"></span><code>function <strong>GetEmpty</strong>: boolean;</code></td>
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<p class="nodescription">This item has no description.</p></td></tr>
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<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><span id="GetScanline-integer-"></span><code>function <strong>GetScanline</strong>(y : integer) : PByte;</code></td>
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<p class="nodescription">This item has no description.</p></td></tr>
</table>
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<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><span id="CreateBuffer"></span><code>procedure <strong>CreateBuffer</strong>;</code></td>
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<td class="visibility"><a href="legend.html"><img src="protected.gif" alt="Protected" title="Protected"></a></td>
<td class="itemcode"><span id="DestroyBuffer"></span><code>procedure <strong>DestroyBuffer</strong>;</code></td>
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<table class="detail wide_list">
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<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><span id="Create-integer-integer-"></span><code>constructor <strong>Create</strong>(aWidth, aHeight : integer);</code></td>
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<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><span id="Destroy"></span><code>destructor <strong>Destroy</strong>; override;</code></td>
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<p class="nodescription">This item has no description.</p></td></tr>
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<table class="detail wide_list">
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<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><span id="UpdateSize-integer-integer-"></span><code>procedure <strong>UpdateSize</strong>(aWidth, aHeight : integer);</code></td>
</tr>
<tr><td colspan="2">
<p>
Updates the image size. </p>
</td></tr>
</table>
<h3 class="detail">Properties</h3>
<table class="detail wide_list">
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><span id="Width"></span><code>property <strong>Width</strong> : integer read <a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#FImageWidth">FImageWidth</a>;</code></td>
</tr>
<tr><td colspan="2">
<p>
Image width. </p>
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><span id="Height"></span><code>property <strong>Height</strong> : integer read <a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#FImageHeight">FImageHeight</a>;</code></td>
</tr>
<tr><td colspan="2">
<p>
Image height. </p>
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><span id="BufferLength"></span><code>property <strong>BufferLength</strong> : integer read <a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#GetBufferLength">GetBufferLength</a>;</code></td>
</tr>
<tr><td colspan="2">
<p>
Buffer length. </p>
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><span id="Empty"></span><code>property <strong>Empty</strong> : boolean read <a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#GetEmpty">GetEmpty</a>;</code></td>
</tr>
<tr><td colspan="2">
<p>
Returns true if the buffer is empty. </p>
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><span id="Scanline"></span><code>property <strong>Scanline</strong>[y: integer]: PByte read <a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#GetScanline-integer-">GetScanline</a>;</code></td>
</tr>
<tr><td colspan="2">
<p>
Returns a pointer to the first byte in of the Y scnaline. </p>
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><span id="ScanlineSize"></span><code>property <strong>ScanlineSize</strong> : integer read <a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#GetScanlineSize">GetScanlineSize</a>;</code></td>
</tr>
<tr><td colspan="2">
<p>
Returns the scanline size. </p>
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><span id="BufferScanlineSize"></span><code>property <strong>BufferScanlineSize</strong> : integer read <a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#GetBufferScanlineSize">GetBufferScanlineSize</a>;</code></td>
</tr>
<tr><td colspan="2">
<p>
Returns the real buffer scanline size. </p>
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><span id="BufferBits"></span><code>property <strong>BufferBits</strong> : pointer read <a href="uCEFBitmapBitBuffer.TCEFBitmapBitBuffer.html#FBuffer">FBuffer</a>;</code></td>
</tr>
<tr><td colspan="2">
<p>
Returns a pointer to the buffer that stores the image. </p>
</td></tr>
</table>
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