1 <?xml version="1.0" encoding="utf-8"?>

     2 <!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->

     3 <!-- This component and the accompanying materials are made available under the terms of the License 

     4 "Eclipse Public License v1.0" which accompanies this distribution, 

     5 and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->

     6 <!-- Initial Contributors:

     7     Nokia Corporation - initial contribution.

     8 Contributors: 

     9 -->

    10 <!DOCTYPE concept

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

    12 <concept id="GUID-CDBBD44F-C5F6-4D51-B4BA-23DA9BB58D69" xml:lang="en"><title>Creating

    13 generic button</title><prolog><metadata><keywords/></metadata></prolog><conbody>

    14 <p>Create the <xref href="jar:GUID-759FBC7F-5384-4487-8457-A8D4B76F6AA6.jar!/html/classCAknButton.html" format="application/java-archive"><codeph>CAknButton</codeph></xref> object

    15 either dynamically from program code or from a resource structure. The constructed

    16 button can then be used as a component control of a compound control.</p>

    17 <p>Use the resource structures <codeph>AVKON_BUTTON</codeph>, <codeph>AVKON_BUTTON_STATE</codeph>,

    18 and <codeph>AVKON_BUTTON_STATE_EXTENSION</codeph> for the button object (defined

    19 in the file <codeph>eikon.rh</codeph>). The following example shows how to

    20 construct a button with the help of a button resource. The button is placed

    21 in a compound control (container) and it occupies the whole rectangle of the

    22 container. The container is set as the observer of the button.</p>

    23 <p><b>Example: Button resource</b></p>

    24 <codeblock xml:space="preserve">RESOURCE AVKON_BUTTON r_myapp_button

    25     {

    26     flags  = KAknButtonTextLeft;

    27     states =

    28         {

    29         AVKON_BUTTON_STATE

    30             {

    31             txt = “Text”;

    32             helptxt = “Help text”;

    33             }

    34         };

    35     }

    36 </codeblock>

    37 <p><b>Example: Constructing button from resource</b></p>

    38 <codeblock xml:space="preserve">void CMyButtonContainer::CreateButtonL()

    39     {

    40     CAknButton* iAknButton = CAknButton::NewL();

    41     iAknButton->ConstructFromResourceL(R_MYAPP_BUTTON);

    42     iAknButton->SetContainerWindowL(*this);

    43     iAknButton->SetRect(Rect());

    44     iAknButton->SetObserver(this);

    45     iAknButton->MakeVisible(ETrue);

    46     iAknButton->ActivateL();

    47     }

    48 </codeblock>

    49 <p><b>Example: Constructing button from program code</b></p>

    50 <codeblock xml:space="preserve">void CMyButtonContainer::CreateButtonL()

    51     {

    52     HBufC* buttonText = StringLoader::LoadLC( R_MYAPP_TEXT );    

    53     HBufC* helpText   =

    54            StringLoader::LoadLC( R_MYAPP_HELPTEXT );

    55     CAknButton* iAknButton = CAknButton::NewL( 

    56         0, 0, 0, 0, 

    57         *buttonText, *helpText, KAknButtonTextLeft, 0);

    58     CleanupStack::PopAndDestroy( 2 );  // helpText, buttonText

    59     iAknButton->SetContainerWindowL(*this);

    60     iAknButton->SetRect(Rect());

    61     iAknButton->SetObserver(this);

    62     iAknButton->MakeVisible(ETrue);

    63     iAknButton->ActivateL();

    64     }

    65 </codeblock>

    66 </conbody></concept>