Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_i_r_printing_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/SerialComms/ServerClientSide/IRPrinting/IRPrinting.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (c) 1997-2009 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
<a name="l00017"></a>00017 <span class="preprocessor">#include <e32base.h></span>
<a name="l00018"></a>00018 <span class="preprocessor">#include <e32test.h></span>
<a name="l00019"></a>00019 <span class="preprocessor">#include <e32svr.h></span>
<a name="l00020"></a>00020 <span class="preprocessor">#include <c32comm.h></span>
<a name="l00021"></a>00021 <span class="preprocessor">#include "f32file.h"</span>
<a name="l00022"></a>00022
<a name="l00023"></a>00023 <span class="preprocessor">#include "CommonFiles.h"</span>
<a name="l00024"></a>00024
<a name="l00025"></a>00025 <span class="comment">// Device driver names</span>
<a name="l00026"></a>00026 <span class="preprocessor">#if defined (__WINS__)</span>
<a name="l00027"></a>00027 <span class="preprocessor"></span><a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(PDD_NAME,<span class="stringliteral">"ECDRV"</span>);
<a name="l00028"></a>00028 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(LDD_NAME,<span class="stringliteral">"ECOMM"</span>);
<a name="l00029"></a>00029 <span class="preprocessor">#else</span>
<a name="l00030"></a>00030 <span class="preprocessor"></span><a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(PDD_NAME,<span class="stringliteral">"EUART1"</span>);
<a name="l00031"></a>00031 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(LDD_NAME,<span class="stringliteral">"ECOMM"</span>);
<a name="l00032"></a>00032 <span class="preprocessor">#endif</span>
<a name="l00033"></a>00033 <span class="preprocessor"></span>
<a name="l00034"></a>00034 _LIT8(DATA_STRING,<span class="stringliteral">"Symbian platform infra red printing\n\r"</span>);
<a name="l00035"></a>00035
<a name="l00036"></a>00036 LOCAL_C <span class="keywordtype">void</span> InitL();
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="comment">// Do the example </span>
<a name="l00039"></a>00039 LOCAL_C <span class="keywordtype">void</span> doExampleL()
<a name="l00040"></a>00040 {
<a name="l00041"></a>00041 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatus0,<span class="stringliteral">"Connect to file server\n"</span>);
<a name="l00042"></a>00042 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatus1,<span class="stringliteral">"Connect to comm server\n"</span>);
<a name="l00043"></a>00043 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatus2,<span class="stringliteral">"Load IrCOMM.CSY\n"</span>);
<a name="l00044"></a>00044 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatus3,<span class="stringliteral">"Open IrCOMM::0\n"</span>);
<a name="l00045"></a>00045 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatus4,<span class="stringliteral">"Write to IrCOMM::0\n"</span>);
<a name="l00046"></a>00046 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatus5,<span class="stringliteral">"Close IrCOMM::0\n"</span>);
<a name="l00047"></a>00047 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatus6,<span class="stringliteral">"Close server connection\n"</span>);
<a name="l00048"></a>00048 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KIrCOMM,<span class="stringliteral">"IrCOMM"</span>);
<a name="l00049"></a>00049 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KIrCOMM0,<span class="stringliteral">"IrCOMM::0"</span>);
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="keyword">const</span> TTimeIntervalMicroSeconds32 KTimeOut(4000000);
<a name="l00052"></a>00052 <span class="comment">//time-out value</span>
<a name="l00053"></a>00053
<a name="l00054"></a>00054 console->Printf(KStatus0);
<a name="l00055"></a>00055 <span class="comment">// force a link to the file server</span>
<a name="l00056"></a>00056 <span class="comment">// so that we're sure the loader </span>
<a name="l00057"></a>00057 <span class="comment">// will be present</span>
<a name="l00058"></a>00058
<a name="l00059"></a>00059 RFs f;
<a name="l00060"></a>00060 User::LeaveIfError(f.Connect());
<a name="l00061"></a>00061 f.Close();
<a name="l00062"></a>00062 <span class="comment">// InitLialisation</span>
<a name="l00063"></a>00063
<a name="l00064"></a>00064 InitL();
<a name="l00065"></a>00065
<a name="l00066"></a>00066 RCommServ server;
<a name="l00067"></a>00067
<a name="l00068"></a>00068 <span class="comment">// Connect to the comm server</span>
<a name="l00069"></a>00069 console->Printf(KStatus1);
<a name="l00070"></a>00070 User::LeaveIfError(server.Connect());
<a name="l00071"></a>00071
<a name="l00072"></a>00072 <span class="comment">// Load the IrCOMM comm module</span>
<a name="l00073"></a>00073 <span class="comment">// C32 will automatically search \System\Libs</span>
<a name="l00074"></a>00074 <span class="comment">// on all drives for IrCOMM.CSY</span>
<a name="l00075"></a>00075 console->Printf(KStatus2);
<a name="l00076"></a>00076 TInt ret=server.LoadCommModule(KIrCOMM);
<a name="l00077"></a>00077
<a name="l00078"></a>00078 <span class="comment">//test(ret==KErrNone);</span>
<a name="l00079"></a>00079 User::LeaveIfError(ret);
<a name="l00080"></a>00080
<a name="l00081"></a>00081 RComm commPort;
<a name="l00082"></a>00082 <span class="comment">// Open the IrCOMM port unit 0 (the only one supported)</span>
<a name="l00083"></a>00083 <span class="comment">// Open port in exclusive mode because we don't </span>
<a name="l00084"></a>00084 <span class="comment">// have any access control code.</span>
<a name="l00085"></a>00085 console->Printf(KStatus3);
<a name="l00086"></a>00086 ret=commPort.Open(server,KIrCOMM0,ECommExclusive);
<a name="l00087"></a>00087 <span class="comment">//test(ret==KErrNone);</span>
<a name="l00088"></a>00088 User::LeaveIfError(ret);
<a name="l00089"></a>00089
<a name="l00090"></a>00090 TRequestStatus status;
<a name="l00091"></a>00091 <span class="comment">// Write to the IrCOMM port - the first write </span>
<a name="l00092"></a>00092 <span class="comment">// takes a long time as the IrDA connection is </span>
<a name="l00093"></a>00093 <span class="comment">// set up in response to this request. Subsequent </span>
<a name="l00094"></a>00094 <span class="comment">// writes to IrCOMM are very fast.</span>
<a name="l00095"></a>00095 console->Printf(KStatus4);
<a name="l00096"></a>00096 commPort.Write(status,KTimeOut,DATA_STRING);
<a name="l00097"></a>00097 User::WaitForRequest(status);
<a name="l00098"></a>00098
<a name="l00099"></a>00099 <span class="comment">//test(status.Int()==KErrNone);</span>
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="comment">// Close port</span>
<a name="l00102"></a>00102 console->Printf(KStatus5);
<a name="l00103"></a>00103 commPort.Close();
<a name="l00104"></a>00104
<a name="l00105"></a>00105 console->Printf(KStatus6);
<a name="l00106"></a>00106 server.Close();
<a name="l00107"></a>00107 }
<a name="l00108"></a>00108
<a name="l00109"></a>00109
<a name="l00110"></a>00110 LOCAL_C <span class="keywordtype">void</span> InitL()
<a name="l00111"></a>00111 <span class="comment">//</span>
<a name="l00112"></a>00112 <span class="comment">// InitLialisation code - loads the serial LDD and PDD</span>
<a name="l00113"></a>00113 <span class="comment">// starts the comm subsystem (for EPOC32 builds)</span>
<a name="l00114"></a>00114 <span class="comment">// On a full Symbian platform implementation, this code would not</span>
<a name="l00115"></a>00115 <span class="comment">// be required because higher level GUI components </span>
<a name="l00116"></a>00116 <span class="comment">// automatically start the services.</span>
<a name="l00117"></a>00117 <span class="comment">//</span>
<a name="l00118"></a>00118 {
<a name="l00119"></a>00119 <span class="comment">// Load the physical device driver</span>
<a name="l00120"></a>00120 <span class="comment">// The OS will automatically append .PDD and </span>
<a name="l00121"></a>00121 <span class="comment">// search /System/Libs on all drives.</span>
<a name="l00122"></a>00122
<a name="l00123"></a>00123 TInt r=User::LoadPhysicalDevice(PDD_NAME);
<a name="l00124"></a>00124 <span class="keywordflow">if</span> (r != KErrNone && r!= KErrAlreadyExists)
<a name="l00125"></a>00125 User::Leave(r);
<a name="l00126"></a>00126 <span class="comment">//test(r==KErrNone || r==KErrAlreadyExists);</span>
<a name="l00127"></a>00127 <span class="comment">// Similarly for the Logical device driver</span>
<a name="l00128"></a>00128 r=User::LoadLogicalDevice(LDD_NAME);
<a name="l00129"></a>00129 <span class="keywordflow">if</span> (r != KErrNone && r != KErrAlreadyExists)
<a name="l00130"></a>00130 User::Leave(r);
<a name="l00131"></a>00131 <span class="comment">//test(r==KErrNone|| r==KErrAlreadyExists);</span>
<a name="l00132"></a>00132
<a name="l00133"></a>00133 <span class="preprocessor">#if defined (__EPOC32__)</span>
<a name="l00134"></a>00134 <span class="preprocessor"></span> <span class="comment">// For EPOC builds we need to start the comms subsystem</span>
<a name="l00135"></a>00135 <span class="comment">// This call actually starts the comms server process</span>
<a name="l00136"></a>00136 r=StartC32();
<a name="l00137"></a>00137 <span class="keywordflow">if</span> (r != KErrAlreadyExists)
<a name="l00138"></a>00138 User::LeaveIfError(r);
<a name="l00139"></a>00139 <span class="preprocessor">#endif</span>
<a name="l00140"></a>00140 <span class="preprocessor"></span> }
<a name="l00141"></a>00141
<a name="l00142"></a>00142
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