Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_c_signal_info_8cpp_source.html
Week 32 contribution of PDK documentation content. See release notes for details. Fixes bug Bug 3582
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<h1>examples/Telephony/ETel3rdPartyExample/PhoneMonitoring/CSignalInfo.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).</span>
<a name="l00002"></a>00002 <span class="comment">// All rights reserved.</span>
<a name="l00003"></a>00003 <span class="comment">// This component and the accompanying materials are made available</span>
<a name="l00004"></a>00004 <span class="comment">// under the terms of "Eclipse Public License v1.0"</span>
<a name="l00005"></a>00005 <span class="comment">// which accompanies this distribution, and is available</span>
<a name="l00006"></a>00006 <span class="comment">// at the URL "http://www.eclipse.org/legal/epl-v10.html".</span>
<a name="l00007"></a>00007 <span class="comment">//</span>
<a name="l00008"></a>00008 <span class="comment">// Initial Contributors:</span>
<a name="l00009"></a>00009 <span class="comment">// Nokia Corporation - initial contribution.</span>
<a name="l00010"></a>00010 <span class="comment">//</span>
<a name="l00011"></a>00011 <span class="comment">// Contributors:</span>
<a name="l00012"></a>00012 <span class="comment">//</span>
<a name="l00013"></a>00013 <span class="comment">// Description:</span>
<a name="l00014"></a>00014 <span class="comment">//</span>
<a name="l00015"></a>00015
<a name="l00016"></a>00016 <span class="preprocessor">#include "CSignalInfo.h"</span>
<a name="l00017"></a>00017
<a name="l00025"></a><a class="code" href="class_c_signal_info.html#a5344ee3fdf650dc6a54891cb5c6c78db">00025</a> <a class="code" href="class_c_signal_info.html">CSignalInfo</a>* <a class="code" href="class_c_signal_info.html#a5344ee3fdf650dc6a54891cb5c6c78db">CSignalInfo::NewL</a>(<a class="code" href="class_m_exec_async.html">MExecAsync</a>* aController)
<a name="l00026"></a>00026 {
<a name="l00027"></a>00027 <a class="code" href="class_c_signal_info.html">CSignalInfo</a>* <span class="keyword">self</span> = <span class="keyword">new</span>(ELeave) <a class="code" href="class_c_signal_info.html">CSignalInfo</a>(aController);
<a name="l00028"></a>00028 CleanupStack::PushL(<span class="keyword">self</span>);
<a name="l00029"></a>00029 <span class="keyword">self</span>->ConstructL();
<a name="l00030"></a>00030 CleanupStack::Pop(<span class="keyword">self</span>);
<a name="l00031"></a>00031 <span class="keywordflow">return</span> <span class="keyword">self</span>;
<a name="l00032"></a>00032 }
<a name="l00033"></a>00033
<a name="l00038"></a><a class="code" href="class_c_signal_info.html#ad806939b51bf036e27b8ef637baae49d">00038</a> <a class="code" href="class_c_signal_info.html#ad806939b51bf036e27b8ef637baae49d">CSignalInfo::~CSignalInfo</a>()
<a name="l00039"></a>00039 {
<a name="l00040"></a>00040 Cancel();
<a name="l00041"></a>00041 }
<a name="l00042"></a>00042
<a name="l00046"></a><a class="code" href="class_c_signal_info.html#a453330487633b3e5c0ad13509c461831">00046</a> <span class="keywordtype">void</span> <a class="code" href="class_c_signal_info.html#a453330487633b3e5c0ad13509c461831">CSignalInfo::DoStartRequestL</a>()
<a name="l00047"></a>00047 {
<a name="l00048"></a>00048 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KDummyAnswerPanic, <span class="stringliteral">"CSignalInfo Get Method"</span>);
<a name="l00049"></a>00049 __ASSERT_ALWAYS(!IsActive(), User::Panic(KDummyAnswerPanic, 1));
<a name="l00050"></a>00050 <a class="code" href="class_c_i_s_v_a_p_i_async.html#a642c32a2c5a3a4eec17863139e468a33">iRequestNotify</a> = EFalse;
<a name="l00051"></a>00051
<a name="l00052"></a>00052 <span class="comment">// Retrieves the phone's current signal strength via the aDes argument.</span>
<a name="l00053"></a>00053 <a class="code" href="class_c_i_s_v_a_p_i_base.html#a5f92cd8caaa13e65aef6d59ed79edc18">iTelephony</a>->GetSignalStrength(iStatus, iSignalStrengthV1Pckg);
<a name="l00054"></a>00054 SetActive();
<a name="l00055"></a>00055 }
<a name="l00056"></a>00056
<a name="l00063"></a>00063 CSignalInfo::CSignalInfo(<a class="code" href="class_m_exec_async.html">MExecAsync</a>* aController)
<a name="l00064"></a>00064 : <a class="code" href="class_c_i_s_v_a_p_i_async.html">CISVAPIAsync</a>(aController, KSignalInfo),
<a name="l00065"></a>00065 iSignalStrengthV1Pckg(iSignalStrengthV1)
<a name="l00066"></a>00066 {
<a name="l00067"></a>00067 <span class="comment">// Empty method</span>
<a name="l00068"></a>00068 }
<a name="l00069"></a>00069
<a name="l00073"></a>00073 <span class="keywordtype">void</span> CSignalInfo::ConstructL()
<a name="l00074"></a>00074 {
<a name="l00075"></a>00075 <span class="comment">// Empty method</span>
<a name="l00076"></a>00076 }
<a name="l00077"></a>00077
<a name="l00082"></a>00082 <span class="keywordtype">void</span> CSignalInfo::RunL()
<a name="l00083"></a>00083 {
<a name="l00084"></a>00084 <span class="keywordflow">if</span>(iStatus != KErrNone)
<a name="l00085"></a>00085 {
<a name="l00086"></a>00086 <a class="code" href="class_c_i_s_v_a_p_i_base.html#ac2937d6d0ac82af3f3d148c0bbca726e">iConsole</a>->Printf(KError);
<a name="l00087"></a>00087
<a name="l00088"></a>00088 <span class="comment">// Print the error status code</span>
<a name="l00089"></a>00089 <a class="code" href="class_c_i_s_v_a_p_i_base.html#ac2937d6d0ac82af3f3d148c0bbca726e">iConsole</a>->Printf(_L(<span class="stringliteral">"%d\n"</span>), iStatus.Int());
<a name="l00090"></a>00090 }
<a name="l00091"></a>00091 <span class="keywordflow">else</span>
<a name="l00092"></a>00092 {
<a name="l00093"></a>00093 TInt32 strength = <a class="code" href="class_c_signal_info.html#a7ec15888793e1ff0e6fa0d65b9ff52e5">iSignalStrengthV1</a>.iSignalStrength;
<a name="l00094"></a>00094 TInt8 bars = <a class="code" href="class_c_signal_info.html#a7ec15888793e1ff0e6fa0d65b9ff52e5">iSignalStrengthV1</a>.iBar;
<a name="l00095"></a>00095 <span class="keywordflow">if</span> (<a class="code" href="class_c_i_s_v_a_p_i_async.html#a642c32a2c5a3a4eec17863139e468a33">iRequestNotify</a>)
<a name="l00096"></a>00096 {
<a name="l00097"></a>00097 <a class="code" href="class_c_i_s_v_a_p_i_base.html#ac2937d6d0ac82af3f3d148c0bbca726e">iConsole</a>->ClearScreen();
<a name="l00098"></a>00098 <a class="code" href="class_c_i_s_v_a_p_i_base.html#ac2937d6d0ac82af3f3d148c0bbca726e">iConsole</a>->Printf(_L(<span class="stringliteral">"~*THIS IS A NOTIFICATION*~\n"</span>));
<a name="l00099"></a>00099 }
<a name="l00100"></a>00100 <a class="code" href="class_c_i_s_v_a_p_i_base.html#ac2937d6d0ac82af3f3d148c0bbca726e">iConsole</a>->Printf(KSignalStrengthMsg);
<a name="l00101"></a>00101 <a class="code" href="class_c_i_s_v_a_p_i_base.html#ac2937d6d0ac82af3f3d148c0bbca726e">iConsole</a>->Printf(_L(<span class="stringliteral">"There are %d bars!\n"</span>), bars);
<a name="l00102"></a>00102 <a class="code" href="class_c_i_s_v_a_p_i_base.html#ac2937d6d0ac82af3f3d148c0bbca726e">iConsole</a>->Printf(_L(<span class="stringliteral">"Signal Strength is %d!\n"</span>), strength);
<a name="l00103"></a>00103 <span class="keywordflow">if</span> (<a class="code" href="class_c_i_s_v_a_p_i_async.html#a642c32a2c5a3a4eec17863139e468a33">iRequestNotify</a>)
<a name="l00104"></a>00104 {
<a name="l00105"></a>00105 <a class="code" href="class_c_signal_info.html#aec3a682abf098aacd17b96236ebc9097">DoRequestNotificationL</a>();
<a name="l00106"></a>00106 }
<a name="l00107"></a>00107 <span class="keywordflow">else</span>
<a name="l00108"></a>00108 {
<a name="l00109"></a>00109 <a class="code" href="class_c_i_s_v_a_p_i_async.html#a61721ea015629deb8c8db529c68f2bd4">ExampleComplete</a>();
<a name="l00110"></a>00110 }
<a name="l00111"></a>00111 }
<a name="l00112"></a>00112 }
<a name="l00113"></a>00113
<a name="l00117"></a><a class="code" href="class_c_signal_info.html#aec3a682abf098aacd17b96236ebc9097">00117</a> <span class="keywordtype">void</span> <a class="code" href="class_c_signal_info.html#aec3a682abf098aacd17b96236ebc9097">CSignalInfo::DoRequestNotificationL</a>()
<a name="l00118"></a>00118 {
<a name="l00119"></a>00119 <span class="comment">// Panic if this object is already performing an asynchronous operation. </span>
<a name="l00120"></a>00120 <span class="comment">// Application will panic if you call SetActive() on an already active object.</span>
<a name="l00121"></a>00121 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>( KNotifyPanic, <span class="stringliteral">"CSignalInfo Notify Method"</span> );
<a name="l00122"></a>00122 __ASSERT_ALWAYS( !IsActive(), User::Panic( KNotifyPanic, 1 ));
<a name="l00123"></a>00123 <a class="code" href="class_c_i_s_v_a_p_i_async.html#a642c32a2c5a3a4eec17863139e468a33">iRequestNotify</a> = ETrue;
<a name="l00124"></a>00124
<a name="l00125"></a>00125 <span class="comment">// Registers interest in receiving change notifications for events.</span>
<a name="l00126"></a>00126 <a class="code" href="class_c_i_s_v_a_p_i_base.html#a5f92cd8caaa13e65aef6d59ed79edc18">iTelephony</a>->NotifyChange( iStatus,
<a name="l00127"></a>00127 CTelephony::ESignalStrengthChange,
<a name="l00128"></a>00128 iSignalStrengthV1Pckg );
<a name="l00129"></a>00129 SetActive();
<a name="l00130"></a>00130 }
<a name="l00131"></a>00131
<a name="l00135"></a>00135 <span class="keywordtype">void</span> CSignalInfo::DoCancel()
<a name="l00136"></a>00136 {
<a name="l00137"></a>00137 <span class="comment">// Cancels an outstanding asynchronous request.</span>
<a name="l00138"></a>00138 <a class="code" href="class_c_i_s_v_a_p_i_base.html#a5f92cd8caaa13e65aef6d59ed79edc18">iTelephony</a>->CancelAsync(CTelephony::ESignalStrengthChangeCancel);
<a name="l00139"></a>00139 }
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