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<!DOCTYPE task

  PUBLIC "-//OASIS//DTD DITA Task//EN" "task.dtd">

<task id="GUID-D7E279EE-05F5-4E82-AF25-1E10FF50FABA" xml:lang="en"><title>Handling

the Middle Soft Key and Enter Key in AVKON lists</title><shortdesc>This document describes how to handle the Middle Soft Key (MSK)

and Enter keys in AVKON lists.</shortdesc><prolog><metadata><keywords/></metadata></prolog><taskbody>

<context id="GUID-F94E9859-C7AE-45FA-80DC-F62625C32EA4">       <p>If an application

handles the list targeted MSK or Enter Key events (<codeph>EKeyOK</codeph> and <codeph>EKeyEnter</codeph>),

for example, in the <codeph>ProcessKeyEventL()</codeph> function, the handling

of these key events must be moved to the listbox observer function <codeph>HandleListBoxEventL()</codeph>.

The MSK or Enter Key event related action must be performed when an <codeph>EEventEnterKeyPressed</codeph> event

is received. This way the list item-specific action is performed on a key

event only when there is an option highlighted in the list.</p>     </context>

<example><ul>

<li><p>Remove key event handling code from <codeph>ProcessKeyEventL</codeph>.</p><codeblock xml:space="preserve">TBool CLogsDetailView::ProcessKeyEventL(

const TKeyEvent& aKeyEvent,

TEventCode aType )

{

  if( aType == EEventKey )

  {

    switch( aKeyEvent.iCode )

    {

      ...

//------ Remove this code-------------

<b>// 	case EKeyOK:

// 	case EKeyEnter:

//	Select key pressed

// 	CmdContextMenuL();

// 	return ETrue;

</b>//--------------------------------------        

       ...

        default:

        break;

    }

  }

</codeblock></li>

<li><p>Add key event handling code to <codeph>HandleListBoxEventL</codeph>.</p><codeblock xml:space="preserve">void CLogsBaseView::HandleListBoxEventL(

CEikListBox* aListBox,

TListBoxEvent aEventType)

{

  ...

    switch ( aEventType )

  {

    ...

//---------Add MSK and enter key handling code----------------<b> 

      case EEventEnterKeyPressed:

    {

      TInt commandId( Cba()->ButtonGroup()->CommandId(

        CEikButtonGroupContainer::EMiddleSoftkeyPosition ) );

      ProcessCommandL( commandId );

      break;

    }

</b>//-------------------------------------------------------------- 

 ...

      default:

// HW key shortcuts

      break;

  }

}

...

}

</codeblock></li>

</ul></example>