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Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/starter_2src_2_symbian_o_s_basics_lab_8cpp_source.html
author Dominic Pinkman <dominic.pinkman@nokia.com>
Fri, 13 Aug 2010 16:47:46 +0100
changeset 14 578be2adaf3e
parent 6 43e37759235e
permissions -rw-r--r--
Week 32 contribution of PDK documentation content. See release notes for details. Fixes bug Bug 3582
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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_04303.cb1/starter/src/SymbianOSBasicsLab.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_04303.cb1/starter/src/SymbianOSBasicsLab.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// SymbianOSBasicsLab.cpp</span>
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<a name="l00002"></a>00002 <span class="comment">//</span>
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<a name="l00003"></a>00003 <span class="comment">// Copyright (c) 2003 Nokia Ltd.  All rights reserved.</span>
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<a name="l00004"></a>00004
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<a name="l00006"></a>00006 <span class="preprocessor">#include &lt;e32cons.h&gt;</span>
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<a name="l00007"></a>00007
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<a name="l00008"></a>00008 <span class="comment">// Function prototype</span>
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<a name="l00009"></a>00009 LOCAL_C <span class="keywordtype">void</span> UseBasicTypesL();
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<a name="l00010"></a>00010
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<a name="l00012"></a>00012 <span class="comment">//</span>
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<a name="l00013"></a>00013 <span class="comment">// Main function called by E32</span>
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<a name="l00014"></a>00014 <span class="comment">//</span>
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<a name="l00016"></a>00016 <span class="comment"></span>GLDEF_C TInt E32Main()
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<a name="l00017"></a>00017     {
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<a name="l00018"></a>00018
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<a name="l00019"></a>00019     <span class="comment">// Catch any Leaves thrown </span>
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<a name="l00020"></a>00020     TRAPD(error, UseBasicTypesL());
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<a name="l00021"></a>00021
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<a name="l00022"></a>00022         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KMsgPanic,<span class="stringliteral">&quot;Error in Symbian OS Basics Lab: &quot;</span>);
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<a name="l00023"></a>00023         __ASSERT_ALWAYS(!error, User::Panic(KMsgPanic, error));
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<a name="l00024"></a>00024
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<a name="l00025"></a>00025         <span class="keywordflow">return</span> 0;
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<a name="l00026"></a>00026     }
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<a name="l00027"></a>00027
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<a name="l00030"></a>00030 <span class="comment">//</span>
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<a name="l00031"></a>00031 <span class="comment">//</span>
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<a name="l00032"></a>00032 <span class="comment">//</span>
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<a name="l00034"></a>00034 <span class="comment"></span>LOCAL_C <span class="keywordtype">void</span> UseBasicTypesL()
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<a name="l00035"></a>00035     {
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<a name="l00036"></a>00036     <span class="comment">// Constant text used for the console app title </span>
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<a name="l00037"></a>00037         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KLabTitle,<span class="stringliteral">&quot;Symbian OS Basics Lab&quot;</span>);
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<a name="l00038"></a>00038
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<a name="l00039"></a>00039     <span class="comment">//</span>
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<a name="l00040"></a>00040     <span class="comment">// &#39;C&#39; class usage:</span>
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<a name="l00041"></a>00041     <span class="comment">//</span>
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<a name="l00042"></a>00042     <span class="comment">// CConsoleBase derives from CBase and so should be declared on the heap</span>
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<a name="l00043"></a>00043     <span class="comment">// Console::NewL is a special way of doing this we will cover in the </span>
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<a name="l00044"></a>00044     <span class="comment">// Memory and Resource Management lesson</span>
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<a name="l00045"></a>00045     CConsoleBase* console = Console::NewL(KLabTitle, TSize(KConsFullScreen, KConsFullScreen));
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<a name="l00046"></a>00046
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<a name="l00047"></a>00047     <span class="comment">//</span>
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<a name="l00048"></a>00048     <span class="comment">// TInt usage</span>
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<a name="l00049"></a>00049     <span class="comment">//</span>
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<a name="l00050"></a>00050     <span class="keyword">const</span> TInt KOne = 1;
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<a name="l00051"></a>00051     <span class="keyword">const</span> TInt KTwo = 2;
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<a name="l00052"></a>00052
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<a name="l00053"></a>00053     <span class="comment">// Edit 1: On the line below, declare a TInt called &lt;sum&gt; that adds KOne and KTwo</span>
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<a name="l00054"></a>00054
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<a name="l00055"></a>00055
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<a name="l00056"></a>00056     <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KSumOutput, <span class="stringliteral">&quot;%d + %d is %d\n&quot;</span>);
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<a name="l00057"></a>00057     <span class="comment">// Edit 2: Uncomment the next line that prints the variables to the screen</span>
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<a name="l00058"></a>00058     <span class="comment">// console-&gt;Printf(KSumOutput, KOne, KTwo, sum);</span>
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<a name="l00059"></a>00059
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<a name="l00060"></a>00060     <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KMaxIntOutput, <span class="stringliteral">&quot;TInt max: %d\n&quot;</span>);
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<a name="l00061"></a>00061     console-&gt;Printf(KMaxIntOutput, KMaxTInt);
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<a name="l00062"></a>00062
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<a name="l00063"></a>00063     <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KMinIntOutput, <span class="stringliteral">&quot;TInt min: %d\n&quot;</span>);
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<a name="l00064"></a>00064     console-&gt;Printf(KMinIntOutput, KMinTInt);
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<a name="l00065"></a>00065
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<a name="l00066"></a>00066     <span class="comment">//</span>
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<a name="l00067"></a>00067     <span class="comment">// TBool usage</span>
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<a name="l00068"></a>00068     <span class="comment">//</span>
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<a name="l00069"></a>00069
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<a name="l00070"></a>00070     <span class="comment">// Edit 3: Declare a TBool called &lt;flag&gt; and initialize to EFalse</span>
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<a name="l00071"></a>00071
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<a name="l00072"></a>00072
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<a name="l00073"></a>00073     <span class="comment">// Edit 4: Uncomment the next 5 lines</span>
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<a name="l00074"></a>00074     <span class="comment">// if (!flag)</span>
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<a name="l00075"></a>00075     <span class="comment">//     {</span>
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<a name="l00076"></a>00076     <span class="comment">//     _LIT(KFlagFalse, &quot;flag is EFalse\n&quot;);</span>
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<a name="l00077"></a>00077     <span class="comment">//     console-&gt;Printf(KFlagFalse);</span>
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<a name="l00078"></a>00078     <span class="comment">//     }</span>
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<a name="l00079"></a>00079
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<a name="l00080"></a>00080     <span class="comment">// Edit 5: Toggle the value of &lt;flag&gt;</span>
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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     <span class="comment">// Edit 6: Uncomment the next 5 lines    </span>
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<a name="l00084"></a>00084     <span class="comment">// if (flag)</span>
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<a name="l00085"></a>00085     <span class="comment">//     {</span>
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<a name="l00086"></a>00086     <span class="comment">//     _LIT(KFlagTrue, &quot;flag is ETrue\n&quot;);</span>
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<a name="l00087"></a>00087     <span class="comment">//     console-&gt;Printf(KFlagTrue);</span>
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<a name="l00088"></a>00088     <span class="comment">//     }</span>
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<a name="l00089"></a>00089
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<a name="l00090"></a>00090     <span class="comment">//</span>
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<a name="l00091"></a>00091     <span class="comment">// enum (TKeyCode) and TText usage</span>
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<a name="l00092"></a>00092     <span class="comment">//</span>
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<a name="l00093"></a>00093     <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KEnterSpace, <span class="stringliteral">&quot;Press space to start timer\n&quot;</span>);
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<a name="l00094"></a>00094     console-&gt;Printf(KEnterSpace);
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<a name="l00095"></a>00095
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<a name="l00096"></a>00096     <span class="comment">// Look at key input</span>
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<a name="l00097"></a>00097     TKeyCode key = console-&gt;Getch();
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<a name="l00098"></a>00098     <span class="keywordflow">while</span> (EKeySpace != key)
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<a name="l00099"></a>00099         {
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<a name="l00100"></a>00100         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KCharVal, <span class="stringliteral">&quot;Char entered is &#39;%c&#39;\n&quot;</span>);
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<a name="l00101"></a>00101
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<a name="l00102"></a>00102         <span class="comment">// Edit 7: Delcare a TText called &lt;keyVal&gt; and set it to &lt;key&gt;.</span>
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<a name="l00103"></a>00103
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<a name="l00104"></a>00104
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<a name="l00105"></a>00105
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<a name="l00106"></a>00106         <span class="comment">// Edit 8: Uncomment the next line</span>
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<a name="l00107"></a>00107         <span class="comment">// console-&gt;Printf(KCharVal, keyVal);</span>
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<a name="l00108"></a>00108         key = console-&gt;Getch();
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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     <span class="comment">//</span>
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<a name="l00112"></a>00112     <span class="comment">// &#39;R&#39; class usage</span>
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<a name="l00113"></a>00113     <span class="comment">//</span>
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<a name="l00114"></a>00114     RTimer timer;
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<a name="l00115"></a>00115     <span class="keywordflow">if</span> (KErrNone == timer.CreateLocal())
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<a name="l00116"></a>00116         {
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<a name="l00117"></a>00117         TRequestStatus status; <span class="comment">// tracks the status of the request</span>
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<a name="l00118"></a>00118         <span class="keyword">const</span> TTimeIntervalMicroSeconds32 KTimerInterval = 5000000;
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<a name="l00119"></a>00119
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<a name="l00120"></a>00120         <span class="comment">// Edit 9: Uncomment next line to request timeout of </span>
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<a name="l00121"></a>00121         <span class="comment">//          KTimerInterval micro seconds</span>
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<a name="l00122"></a>00122         <span class="comment">// timer.After(status, KTimerInterval); </span>
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<a name="l00123"></a>00123
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<a name="l00124"></a>00124         <span class="comment">// Edit 10: Uncomment next line to wait synchronously </span>
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<a name="l00125"></a>00125         <span class="comment">//          for the timer to complete.</span>
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<a name="l00126"></a>00126         <span class="comment">// User::WaitForRequest(status);</span>
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<a name="l00127"></a>00127
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<a name="l00128"></a>00128         <span class="comment">// Edit 11: Uncomment the next 2 lines that print to the screen</span>
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<a name="l00129"></a>00129         <span class="comment">// _LIT(KTimerComplete, &quot;Timer completed after %d micro secs\n&quot;);</span>
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<a name="l00130"></a>00130         <span class="comment">// console-&gt;Printf(KTimerComplete, KTimerInterval );</span>
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<a name="l00131"></a>00131         }
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<a name="l00132"></a>00132     <span class="keywordflow">else</span>
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<a name="l00133"></a>00133         {
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<a name="l00134"></a>00134         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTimerError, <span class="stringliteral">&quot;Error creating timer\n&quot;</span>);
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<a name="l00135"></a>00135         console-&gt;Printf(KTimerError);
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<a name="l00136"></a>00136         }
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<a name="l00137"></a>00137
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<a name="l00138"></a>00138     timer.Close();
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<a name="l00139"></a>00139
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<a name="l00140"></a>00140     <span class="comment">// Continue</span>
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<a name="l00141"></a>00141         <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KMsgPressAnyKey,<span class="stringliteral">&quot;Press any key to end&quot;</span>);
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<a name="l00142"></a>00142         console-&gt;Printf(KMsgPressAnyKey);
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<a name="l00143"></a>00143         console-&gt;Getch();
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<a name="l00144"></a>00144
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<a name="l00145"></a>00145     <span class="keyword">delete</span> console;
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<a name="l00146"></a>00146     }
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<a name="l00147"></a>00147
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<a name="l00148"></a>00148
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<a name="l00149"></a>00149
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<a name="l00150"></a>00150
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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>
MCL/sftools/depl/docscontent