Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/solution_2src_2_a_o_lab_text_flash_container_8cpp_source.html
author Dominic Pinkman <dominic.pinkman@nokia.com>
Fri, 13 Aug 2010 16:47:46 +0100
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Week 32 contribution of PDK documentation content. See release notes for details. Fixes bug Bug 3582
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
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<title>TB9.2 Example Applications: examples/ForumNokia/Symbian_OS_Basics_Lab_Exercises_v3_1/Lab_04309.cb1/solution/src/AOLabTextFlashContainer.cpp Source File</title>
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<link href="tabs.css" rel="stylesheet" type="text/css"/>
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<link href="doxygen.css" rel="stylesheet" type="text/css"/>
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</head>
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<body>
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<!-- Generated by Doxygen 1.6.2 -->
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<h1>examples/ForumNokia/Symbian_OS_Basics_Lab_Exercises_v3_1/Lab_04309.cb1/solution/src/AOLabTextFlashContainer.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (c) 2006 Nokia Corporation.</span>
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<a name="l00003"></a>00003 <span class="preprocessor">#include &quot;AOLabTextFlashContainer.h&quot;</span>
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<a name="l00004"></a>00004 <span class="preprocessor">#include &quot;ActiveTimer.h&quot;</span>
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<a name="l00005"></a>00005 <span class="preprocessor">#include &lt;eiklabel.h&gt;</span>
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<a name="l00006"></a>00006 
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<a name="l00007"></a>00007 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KHelloText, <span class="stringliteral">&quot;Hello&quot;</span>);
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<a name="l00008"></a>00008 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KWorldText, <span class="stringliteral">&quot;World&quot;</span>);
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<a name="l00009"></a>00009 
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<a name="l00010"></a>00010 <span class="keyword">const</span> TInt KTimeoutValue = 2000000;
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<a name="l00011"></a>00011 
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<a name="l00012"></a>00012 
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<a name="l00013"></a>00013 <span class="comment">// Constructs a container for this application</span>
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<a name="l00014"></a>00014 <a class="code" href="class_c_a_o_lab_text_flash_container.html">CAOLabTextFlashContainer</a>* CAOLabTextFlashContainer::NewL(<span class="keyword">const</span> TRect&amp; aRect)
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<a name="l00015"></a>00015         {
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<a name="l00016"></a>00016         <a class="code" href="class_c_a_o_lab_text_flash_container.html">CAOLabTextFlashContainer</a>* <span class="keyword">self</span> = <span class="keyword">new</span> ( ELeave ) <a class="code" href="class_c_a_o_lab_text_flash_container.html">CAOLabTextFlashContainer</a>();
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<a name="l00017"></a>00017     CleanupStack::PushL(<span class="keyword">self</span>);
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<a name="l00018"></a>00018     <span class="keyword">self</span>-&gt;ConstructL(aRect);
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<a name="l00019"></a>00019     CleanupStack::Pop(<span class="keyword">self</span>);
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<a name="l00020"></a>00020     
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<a name="l00021"></a>00021     <span class="keywordflow">return</span> <span class="keyword">self</span>;
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<a name="l00022"></a>00022         }
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<a name="l00023"></a>00023         
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<a name="l00024"></a>00024         
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<a name="l00025"></a>00025 <span class="comment">// Symbian 2nd phase constructor</span>
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<a name="l00026"></a>00026 <span class="keywordtype">void</span> CAOLabTextFlashContainer::ConstructL(<span class="keyword">const</span> TRect&amp; aRect)
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<a name="l00027"></a>00027     {
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<a name="l00028"></a>00028     CreateWindowL();
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<a name="l00029"></a>00029 
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<a name="l00030"></a>00030     iTopLabel = <span class="keyword">new</span> (ELeave) CEikLabel;
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<a name="l00031"></a>00031     iTopLabel-&gt;SetContainerWindowL(*<span class="keyword">this</span>);
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<a name="l00032"></a>00032     iTopLabel-&gt;SetTextL(KHelloText);
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<a name="l00033"></a>00033 
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<a name="l00034"></a>00034     iBottomLabel = <span class="keyword">new</span> (ELeave) CEikLabel;
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<a name="l00035"></a>00035     iBottomLabel-&gt;SetContainerWindowL(*<span class="keyword">this</span>);
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<a name="l00036"></a>00036     iBottomLabel-&gt;SetTextL(KWorldText);
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<a name="l00037"></a>00037 
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<a name="l00038"></a>00038     iActiveTimer = CActiveTimer::NewL(*<span class="keyword">this</span>);
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<a name="l00039"></a>00039     iIsVisible = ETrue;
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<a name="l00040"></a>00040 
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<a name="l00041"></a>00041     SetRect(aRect);
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<a name="l00042"></a>00042     ActivateL();
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<a name="l00043"></a>00043     }
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<a name="l00044"></a>00044 
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<a name="l00045"></a>00045 
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<a name="l00046"></a>00046 <span class="comment">// C++ Destructor</span>
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<a name="l00047"></a>00047 CAOLabTextFlashContainer::~CAOLabTextFlashContainer()
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<a name="l00048"></a>00048     {
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<a name="l00049"></a>00049     <span class="keyword">delete</span> iActiveTimer;
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<a name="l00050"></a>00050     <span class="keyword">delete</span> iTopLabel;
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<a name="l00051"></a>00051     <span class="keyword">delete</span> iBottomLabel;
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<a name="l00052"></a>00052     }
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<a name="l00053"></a>00053 
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<a name="l00054"></a>00054 
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<a name="l00055"></a>00055 <span class="comment">// Called by framework when the view size is changed</span>
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<a name="l00056"></a>00056 <span class="keywordtype">void</span> CAOLabTextFlashContainer::SizeChanged()
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<a name="l00057"></a>00057     {
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<a name="l00058"></a>00058     iTopLabel-&gt;SetExtent( TPoint(0,0), TSize(Rect().Width(), Rect().Height()/2));
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<a name="l00059"></a>00059     iBottomLabel-&gt;SetExtent( TPoint(0,Rect().Height()/2), TSize(Rect().Width(),Rect().Height()/2));
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<a name="l00060"></a>00060     }
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<a name="l00061"></a>00061 
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<a name="l00063"></a>00063 <span class="comment">// Returns the number of controls inside this container</span>
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<a name="l00064"></a>00064 TInt CAOLabTextFlashContainer::CountComponentControls()<span class="keyword"> const</span>
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<a name="l00065"></a>00065 <span class="keyword">    </span>{
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<a name="l00066"></a>00066     <span class="keywordflow">return</span> 2;
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<a name="l00067"></a>00067     }
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<a name="l00068"></a>00068 
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<a name="l00069"></a>00069 
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<a name="l00070"></a>00070 <span class="comment">// Gets an indexed component of this compound control</span>
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<a name="l00071"></a>00071 CCoeControl* CAOLabTextFlashContainer::ComponentControl(TInt aIndex)<span class="keyword"> const</span>
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<a name="l00072"></a>00072 <span class="keyword">    </span>{
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<a name="l00073"></a>00073     <span class="keywordflow">switch</span> ( aIndex )
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<a name="l00074"></a>00074         {
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<a name="l00075"></a>00075         <span class="keywordflow">case</span> 0:
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<a name="l00076"></a>00076             <span class="keywordflow">return</span> iTopLabel;
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<a name="l00077"></a>00077         <span class="keywordflow">case</span> 1:
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<a name="l00078"></a>00078             <span class="keywordflow">return</span> iBottomLabel;
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<a name="l00079"></a>00079         <span class="keywordflow">default</span>:
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<a name="l00080"></a>00080             <span class="keywordflow">return</span> NULL;
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<a name="l00081"></a>00081         }
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<a name="l00082"></a>00082     }
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<a name="l00083"></a>00083 
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<a name="l00085"></a>00085 <span class="comment">// Draw a grey rectangle that fills the client area of the screen</span>
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<a name="l00086"></a>00086 <span class="keywordtype">void</span> CAOLabTextFlashContainer::Draw(<span class="keyword">const</span> TRect&amp; aRect)<span class="keyword"> const</span>
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<a name="l00087"></a>00087 <span class="keyword">    </span>{
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<a name="l00088"></a>00088     CWindowGc&amp; gc = SystemGc();
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<a name="l00089"></a>00089     
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<a name="l00090"></a>00090     gc.SetPenStyle(CGraphicsContext::ENullPen);
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<a name="l00091"></a>00091     gc.SetBrushColor(KRgbGray);
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<a name="l00092"></a>00092     gc.SetBrushStyle(CGraphicsContext::ESolidBrush);
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<a name="l00093"></a>00093     gc.DrawRect(aRect);
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<a name="l00094"></a>00094     }
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<a name="l00095"></a>00095       
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<a name="l00096"></a>00096       
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<a name="l00097"></a>00097 <span class="comment">// Starts the text flashing</span>
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<a name="l00098"></a>00098 <span class="keywordtype">void</span> CAOLabTextFlashContainer::FlashingText()
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<a name="l00099"></a>00099     {
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<a name="l00100"></a>00100     iTopLabel-&gt;SetTextL(KHelloText);
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<a name="l00101"></a>00101     iBottomLabel-&gt;SetTextL(KWorldText);
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<a name="l00102"></a>00102     DrawNow();
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<a name="l00103"></a>00103         
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<a name="l00104"></a>00104     <span class="keywordflow">if</span> (!iIsFlashing)
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<a name="l00105"></a>00105         {
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<a name="l00106"></a>00106         iIsVisible = ETrue;
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<a name="l00107"></a>00107         iIsFlashing = ETrue;
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<a name="l00108"></a>00108         iActiveTimer-&gt;After(KTimeoutValue);
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<a name="l00109"></a>00109         }
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<a name="l00110"></a>00110     }
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<a name="l00111"></a>00111 
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<a name="l00112"></a>00112 
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<a name="l00113"></a>00113 <span class="comment">// Stops the text flashing</span>
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<a name="l00114"></a>00114 <span class="keywordtype">void</span> CAOLabTextFlashContainer::StopFlashing()
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<a name="l00115"></a>00115     {
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<a name="l00116"></a>00116     <span class="keywordflow">if</span> (iIsFlashing)
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<a name="l00117"></a>00117         {
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<a name="l00118"></a>00118         iIsFlashing = EFalse;
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<a name="l00119"></a>00119         iActiveTimer-&gt;Cancel();
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<a name="l00120"></a>00120         }
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<a name="l00121"></a>00121         
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<a name="l00122"></a>00122     iTopLabel-&gt;MakeVisible(ETrue);
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<a name="l00123"></a>00123     iBottomLabel-&gt;MakeVisible(ETrue);
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<a name="l00124"></a>00124     }
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<a name="l00125"></a>00125 
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<a name="l00126"></a>00126 
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<a name="l00127"></a>00127 <span class="comment">// Callback function when the active object timer completes </span>
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<a name="l00128"></a>00128 <span class="keywordtype">void</span> CAOLabTextFlashContainer::TimerComplete(TInt aError)
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<a name="l00129"></a>00129     {
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<a name="l00130"></a>00130     <span class="keywordflow">if</span> (KErrNone == aError)
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<a name="l00131"></a>00131         {
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<a name="l00132"></a>00132         iIsVisible = !iIsVisible;
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<a name="l00133"></a>00133         iActiveTimer-&gt;After(KTimeoutValue);
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<a name="l00134"></a>00134         }
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<a name="l00135"></a>00135     <span class="keywordflow">else</span>
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<a name="l00136"></a>00136         {
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<a name="l00137"></a>00137         iIsVisible = ETrue;
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<a name="l00138"></a>00138         iIsFlashing = EFalse;
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<a name="l00139"></a>00139         }
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<a name="l00140"></a>00140         
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<a name="l00141"></a>00141     iTopLabel-&gt;MakeVisible(iIsVisible);
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<a name="l00142"></a>00142     iBottomLabel-&gt;MakeVisible(iIsVisible);
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<a name="l00143"></a>00143     }
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<a name="l00144"></a>00144 
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<a name="l00145"></a>00145 <span class="comment">// End of File  </span>
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</pre></div></div>
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<hr size="1"/><address style="text-align: right;"><small>Generated by&nbsp;
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<a href="http://www.doxygen.org/index.html">
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.2 </small></address>
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</body>
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</html>