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<!DOCTYPE concept

  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">

<concept id="GUID-E1A2872E-6E8D-4C02-B3C0-23213FD56106" xml:lang="en"><title>Handling

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

<p>Use the <codeph>MCoeControlObserver</codeph> observer interface to observe

button events. Set the button container to be its observer.</p>

<p>For more information on events, see <xref href="GUID-A9330FEF-C559-4E2B-B064-0151FDADEA8C.dita">Event

handling</xref>.</p>

<codeblock xml:space="preserve">void CMyAppContainer::HandleControlEventL( CCoeControl* aControl, 

                                                  TCoeEvent aEventType ) 

    { 

        switch ( aEventType ) 

            { 

// Button state changed (button was pressed) 

            case EEventStateChanged: 

                … 

                break; 

// Button is pressed for a long time (in case of 

// a KAknButtonReportOnLongPress flagged button) 

            case CAknButton::ELongPressEvent: 

                … 

                break; 

// Button long press ended (in case of 

// a KAknButtonReportOnLongPress flagged button) 

            case CAknButton::ELongPressEndedEvent: 

                … 

                break; 

            default: 

                break; 

            } 

    } 

</codeblock>

</conbody></concept>