week 10 bug fix submission (SF PDK version): Bug 1892, Bug 1897, Bug 1319. Also 3 or 4 documents were found to contain code blocks with SFL, which has been fixed. Partial fix for broken links, links to Forum Nokia, and the 'Symbian platform' terminology issues.
<?xml version="1.0" encoding="utf-8"?>
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"Eclipse Public License v1.0" which accompanies this distribution,
and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
<!-- Initial Contributors:
Nokia Corporation - initial contribution.
Contributors:
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<!DOCTYPE concept
PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
<concept id="GUID-868C1A38-3CD0-4082-8106-DC3EE1F815D8" xml:lang="en"><title>System
events</title><prolog><metadata><keywords/></metadata></prolog><conbody>
<p>System events are enumerated in <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Application_Architecture/APGTASK.HGlobals.html#%3a%3aTApaSystemEvent" format="application/java-archive"><parmname>TApaSystemEvent</parmname></xref>, which is defined in the <parmname>apgtask.h</parmname> header.
You must override <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Control_Environment/CCoeAppUiClass.html#%3a%3aCCoeAppUi%3a%3aHandleSystemEventL%28const%20TWsEvent%20%26amp%3b%29" format="application/java-archive"><parmname>CCoeAppUI::HandleSystemEventL()</parmname></xref> to handle
these events, which should be done in the UI controller. The default implementation
is empty. The possible events are as follows:</p>
<codeblock id="GUID-F0606F71-729A-4D6B-AAC6-876A526DDFAC" xml:space="preserve">enum TApaSystemEvent
{
EApaSystemEventShutdown = 1,
EApaSystemEventBackupStarting,
EApaSystemEventBackupComplete,
EApaSystemEventBroughtToForeground
};
</codeblock>
<p>The following is a code example of system event handling:</p>
<codeblock id="GUID-86877508-AD28-4576-B9D5-55565B0F4A4A" xml:space="preserve">void CExampleAppUI::HandleSystemEvent( const TWsEvent& aEvent )
{
switch( *( TApaSystemEvent* )( aEvent.EventData() ) )
{
case EApaSystemEventBackupStarting:
{
// Handle backup starting
//...
break;
}
case EApaSystemEventBackupComplete:
{
// Handle backup complete
//...
break;
}
case EApaSystemEventShutdown:
{
// Handle shutdown
//...
break;
}
}
// Call the base class implementation
CAknAppUi::HandleSystemEvent( aEvent );
}
</codeblock>
</conbody></concept>