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<a href="index.html" class="qtref"><span>QtMobility Reference Documentation</span></a>
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<h1 class="title">System Information Example</h1>
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<p>Files:</p>
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<li><a href="sysinfo-dialog-cpp.html">sysinfo/dialog.cpp</a></li>
<li><a href="sysinfo-dialog-h.html">sysinfo/dialog.h</a></li>
<li><a href="sysinfo-dialog-ui.html">sysinfo/dialog.ui</a></li>
<li><a href="sysinfo-dialog-landscape-ui.html">sysinfo/dialog_landscape.ui</a></li>
<li><a href="sysinfo-dialog-s60-ui.html">sysinfo/dialog_s60.ui</a></li>
<li><a href="sysinfo-dialog-small-landscape-ui.html">sysinfo/dialog_small_landscape.ui</a></li>
<li><a href="sysinfo-main-cpp.html">sysinfo/main.cpp</a></li>
<li><a href="sysinfo-examples-qrc.html">sysinfo/examples.qrc</a></li>
<li><a href="sysinfo-sysinfo-pro.html">sysinfo/sysinfo.pro</a></li>
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<p class="centerAlign"><img src="images/sysinfo.png" alt="" /></p><p>The System Information example uses a tabbed dialog, with each tab representing a particular type of data: versions, network and so on.</p>
<p>To access the information, the example creates objects belonging to the System Information classes</p>
<table class="annotated">
<tr class="odd topAlign"><td class="tblName"><p><a href="qsystemdeviceinfo-profiledetails.html">QSystemDeviceInfo::ProfileDetails</a></p></td><td class="tblDescr"><p>Access to details of the currently active phone profile</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qsystemalignedtimer.html">QSystemAlignedTimer</a></p></td><td class="tblDescr"><p>Service for applications to synchronize their activity</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qsystembatteryinfo.html">QSystemBatteryInfo</a></p></td><td class="tblDescr"><p>Access to battery and power information from the system</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qsystemdeviceinfo.html">QSystemDeviceInfo</a></p></td><td class="tblDescr"><p>Access to device information from the system</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qsystemdisplayinfo.html">QSystemDisplayInfo</a></p></td><td class="tblDescr"><p>Access to display information from the system</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qsysteminfo.html">QSystemInfo</a></p></td><td class="tblDescr"><p>Access to various general information from the system</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qsystemnetworkinfo.html">QSystemNetworkInfo</a></p></td><td class="tblDescr"><p>Access to various networking status and signals</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qsystemscreensaver.html">QSystemScreenSaver</a></p></td><td class="tblDescr"><p>Access to screen saver and blanking</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qsystemstorageinfo.html">QSystemStorageInfo</a></p></td><td class="tblDescr"><p>Access to disk storage information from the system</p></td></tr>
</table>
<p>Here are some examples that show how the example application reads the device information.</p>
<p>The current language</p>
<pre class="cpp"> systemInfo <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qsysteminfo.html">QSystemInfo</a></span>(<span class="keyword">this</span>);
curLanguageLineEdit<span class="operator">-</span><span class="operator">></span>setText( systemInfo<span class="operator">-</span><span class="operator">></span>currentLanguage());</pre>
<p>Device information, starting with the battery level</p>
<pre class="cpp"> bi <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qsystembatteryinfo.html">QSystemBatteryInfo</a></span>(<span class="keyword">this</span>);
...
chargerTypeChanged(bi<span class="operator">-</span><span class="operator">></span>chargerType());
currentBatStat <span class="operator">=</span> bi<span class="operator">-</span><span class="operator">></span>batteryStatus();</pre>
<p>The battery status is an enum, <a href="qsystembatteryinfo.html#BatteryStatus-enum">QSystemBatteryInfo::BatteryStatus</a>, that indicates various battery levels and their significance, e.g., <a href="qsystembatteryinfo.html#BatteryStatus-enum">QSystemBatteryInfo::BatteryVeryLow</a>.</p>
<p>The manufacturer id and the product name</p>
<pre class="cpp"> manufacturerLabel<span class="operator">-</span><span class="operator">></span>setText(di<span class="operator">-</span><span class="operator">></span>manufacturer());
...
productLabel<span class="operator">-</span><span class="operator">></span>setText(di<span class="operator">-</span><span class="operator">></span>productName());</pre>
<p>Other information is stored as bitwise flags. The following code shows the input methods being determined using flags.</p>
<pre class="cpp"> <span class="type"><a href="qsystemdeviceinfo.html">QSystemDeviceInfo</a></span><span class="operator">::</span>InputMethodFlags methods <span class="operator">=</span> di<span class="operator">-</span><span class="operator">></span>inputMethodType();
<span class="type"><a href="http://qt.nokia.com/doc/4.7/qstringlist.html">QStringList</a></span> inputs;
<span class="keyword">if</span> ((methods <span class="operator">&</span> <span class="type"><a href="qsystemdeviceinfo.html">QSystemDeviceInfo</a></span><span class="operator">::</span>Keys)<span class="operator">=</span><span class="type"><a href="qsystemdeviceinfo.html">QSystemDeviceInfo</a></span><span class="operator">::</span>Keypad){
inputs <span class="operator"><</span><span class="operator"><</span> <span class="string">"Keys"</span>;
}
<span class="keyword">if</span> ((methods <span class="operator">&</span> <span class="type"><a href="qsystemdeviceinfo.html">QSystemDeviceInfo</a></span><span class="operator">::</span>Keypad)<span class="operator">=</span><span class="type"><a href="qsystemdeviceinfo.html">QSystemDeviceInfo</a></span><span class="operator">::</span>Keypad) {
inputs <span class="operator"><</span><span class="operator"><</span> <span class="string">"Keypad"</span>;
}</pre>
<p>Various capabilities of the device can be found by testing for features. In the example a Feature combo box, on the General tab, has a hard coded list of features. When a listed feature is selected the getFeature() function is called with the index which is handled by applying a test to the corresponding feature.</p>
<pre class="cpp"> <span class="type"><a href="qsysteminfo.html">QSystemInfo</a></span><span class="operator">::</span>Feature feature;
<span class="keyword">switch</span>(index) {
...
<span class="keyword">case</span> <span class="number">1</span>:
feature <span class="operator">=</span> <span class="type"><a href="qsysteminfo.html">QSystemInfo</a></span><span class="operator">::</span>BluetoothFeature;
...
<span class="type"><a href="qsysteminfo.html">QSystemInfo</a></span> si;
featuresLineEdit<span class="operator">-</span><span class="operator">></span>setText((si<span class="operator">.</span>hasFeatureSupported(feature) <span class="operator">?</span> <span class="string">"true"</span>:<span class="string">"false"</span> ));</pre>
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