 {</div>
<div class="line"><span class="lineno">  490</span>                    pnlAlpha.Invalidate();</div>
<div class="line"><span class="lineno">  491</span>                    <span class="keywordflow">break</span>;</div>
<div class="line"><span class="lineno">  492</span>                }</div>
<div class="line"><span class="lineno">  493</span> </div>
<div class="line"><span class="lineno">  494</span>                <span class="keywordflow">default</span>: <span class="keywordflow">return</span>;</d