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</div><div class="twikiRevInfo"><span class="twikiGrayText"><span class="twikiToolbarElem">Cinelerra.PreviewRegion</span><span class="twikiToolbarElem">r1.3 - 11 Jan 2004 - 05:35 - <a class="twikiLink" href="../Main/AlexFerrer">AlexFerrer</a></span><span class="twikiToolbarElem"><a href="#TopicEnd">topic&nbsp;end</a></span></span></div></div>
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<h3><a name="The_Preview_Region"> </a><a name="The_Preview_Region_"> </a> The <a class="twikiLink" href="PreviewRegion">Preview Region</a> </h3>
<img src="../../../pub/Cinelerra/CinelerraImages/preview_region.png" /><br>
<p />
The <a class="twikiLink" href="PreviewRegion">PreviewRegion</a> is the "sub-region" of the timeline in which the <a class="twikiLink" href="SliderControl">slider</a> operates.
<p />
By shrinking the <a class="twikiLink" href="PreviewRegion">PreviewRegion</a> area we can narrow the total area where the <a class="twikiLink" href="SliderControl">slider</a> operates, allowing us to precisely seek our position on the <a class="twikiLink" href="Compositor">compositor</a> or <a class="twikiLink" href="Viewer">viewer</a> <a class="twikiLink" href="TimeBar">TimeBar</a>.
<p />
<h4><a name="Defining_the_Preview_Region"> </a> Defining the Preview Region </h4>
To define the area covered by the <a class="twikiLink" href="PreviewRegion">PreviewRegion</a> :
<ul>
<li> Click at the <strong>left</strong> end of the <a class="twikiLink" href="TimeBar">TimeBar</a>, (<em>the cursor turns into a left resize pointer</em>   " <code><b>|&lt;-</b></code> " )
</li>
<li> Drag it to the right as desired. (<em>shrinking the <a class="twikiLink" href="PreviewRegion">PreviewRegion</a></em>)
</li>
<li> Click at the <strong>right</strong> end of the <a class="twikiLink" href="TimeBar">TimeBar</a>, (<em>the cursor turns into a right resize pointer</em>   " <code><b>-&gt;|</b></code> " )
</li>
<li> Drag it to the left as desired. (<em>shrinking the <a class="twikiLink" href="PreviewRegion">PreviewRegion</a></em>)
</li>
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<p />
<img src="../../../pub/Cinelerra/CinelerraImages/slider.png" alt="slider.png" /> <br>
<em>Now you can move the <a class="twikiLink" href="SliderControl">slider</a> , but it will only will cover the <a class="twikiLink" href="PreviewRegion">PreviewRegion</a>. defined above</em>
<p />
You can slide the <a class="twikiLink" href="PreviewRegion">PreviewRegion</a> to the left or right without changing it's size by clicking inside the blue area ( <em>the cursor turns into a</em> "  <strong>&lt;=&gt;</strong> " <em>pointer</em> ) and draggin on it.
<p />
<h4><a name="Other_Notes"> </a><a name="Other_Notes_"> </a> Other Notes : </h4>
<img src="../../../pub/TWiki/TWikiDocGraphics/warning.gif" border="0" alt="ALERT!" width="16" height="16" />When you replace a current project with a new media file the <a class="twikiLink" href="PreviewRegion">PreviewRegion</a> automatically resizes to cover the entire file.
<p />
When you append data or change the size of the current project, the <a class="twikiLink" href="PreviewRegion">PreviewRegion</a> stays the same size and shrinks. Therefore, you need to resize the <a class="twikiLink" href="PreviewRegion">PreviewRegion</a>.
<p />
-- <a class="twikiLink" href="../Main/AlexFerrer">AlexFerrer</a> - 10 Jan 2004
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