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<!DOCTYPE concept

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<concept id="GUID-3B441CDC-AB7A-4D8D-A595-57C21E1D426C" xml:lang="en"><title>Foreground

events</title><prolog><metadata><keywords/></metadata></prolog><conbody>

<p>The application framework calls <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Control_Environment/CCoeAppUiClass.html#%3a%3aCCoeAppUi%3a%3aHandleForegroundEventL%28TBool%29" format="application/java-archive"><parmname>CCoeAppUI::HandleForegroundEventL()</parmname></xref> when the application

is switched to the foreground or background.</p>

<p>While the default implementation of this method is empty, it can be,

for example, used to display messages or pause a game when a focus change

event occurs.</p>

<p>An example of such a foreground event implementation is as follows:</p>

<codeblock id="GUID-ECF10193-AB06-4267-A47F-D5EC2C561D9C" xml:space="preserve">// ------------------------------------------------------------------------------

// CMyViewAppUi::HandleForegroundEventL(TBool aForeground)

// This function is called by the  framework when the screen loses or gains focus. 

// i.e. when it goes to the background or to the foreground. Incoming call 

// softnote is an example.

// This event applies to the entire application, all views.

// ------------------------------------------------------------------------------

//

void CMyViewAppUi::HandleForegroundEventL(TBool aForeground)

    {

    if( aForeground == TRUE )

        {

        iEikonEnv->InfoMsg( _L( "Foreground true" ) );

	       }

    else

	       {

	       iEikonEnv->InfoMsg( _L( "Foreground false" ) );

	       }

    }

</codeblock>

<p>The <parmname>aForeground</parmname> parameter is true if the application

is switched to the foreground (is visible) and false if the application has

gone to the background</p>

<note>

<p>The above code snippet uses the <i>MyView</i> example application provided

in the <i>S60 Platform: Platform Application Views</i> package available from <xref href="http://www.forum.nokia.com/info/sw.nokia.com/id/9c5f21fd-2162-42da-aaf6-17a59b943475/S60_Platform_Application_Views_v2_0_en.zip.html" scope="external">Forum

Nokia</xref> . </p>

</note>

</conbody></concept>