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<!DOCTYPE concept

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

<concept id="GUID-6113CC3B-F994-4AA8-81E9-50433A3266E2" xml:lang="en"><title>Adding

and removing toolbar extension items</title><prolog><metadata><keywords/></metadata></prolog><conbody>

<p>The toolbar extension can basically hold the same items as the toolbar

itself. However, the floating toolbar extension can only have focusable buttons.

A fixed toolbar extension does not naturally have focus since its parent toolbar

is not focusing. </p>

<p>The toolbar extension can have a variable number of items. They are located

from the upper left (right in mirrored layout) corner. If all items cannot

fit into the extension, items from the end will be dropped. </p>

<p>You can add items to the toolbar extension in the similar way as to a toolbar,

either by defining <codeph>TBAR_CTRL</codeph> resource structures in the resource

file or adding the items dynamically by using toolbar extension functions.</p>

<p>You can also remove items from the extension.</p>

<p>The example below shows how to add an item to the toolbar extension as

the first item.</p>

<codeblock xml:space="preserve">void CMyAppView::AddItemAsFirstToToolbarExtensionL()

    {

    CAknToolbar* toolbar = Toolbar();

    if ( toolbar )

        {

        CAknToolbarExtension* toolbarExtension = toolbar->ToolbarExtension();

        if ( toolbarExtension )

            {

            CAknButton* newButton = CAknButton::NewL( R_MYAPP_EXTENSION_BUTTON );

            // Last parameter tells the index at where to add new item

            toolbarExtension->AddItemL( 

                newButton, EAknCtButton, KExtensionButtonId, 0, 0 );

            }

        }

    }

</codeblock>

<p>The example below shows how to remove an item from the toolbar extension.</p>

<codeblock xml:space="preserve">void CMyAppView::RemoveItemFromToolbarExtensionL()

    {

    CAknToolbar* toolbar = Toolbar();

    if ( toolbar )

        {

        CAknToolbarExtension* toolbarExtension = toolbar->ToolbarExtension();

        if ( toolbarExtension )

            {

            toolbarExtension->RemoveItemL( KExtensionButtonId );

            }

        }

    }

</codeblock>