<?xml version="1.0" encoding="utf-8"?>+
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<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->+
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<!-- This component and the accompanying materials are made available under the terms of the License +
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"Eclipse Public License v1.0" which accompanies this distribution, +
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and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->+
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<!-- Initial Contributors:+
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    Nokia Corporation - initial contribution.+
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Contributors: +
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-->+
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<!DOCTYPE concept+
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  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">+
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<concept id="GUID-B57D7C53-DFDB-4590-8227-EA251D1ABBC7" xml:lang="en"><title>Using+
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autofocus</title><prolog><metadata><keywords/></metadata></prolog><conbody>+
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<p>Autofocus support for camera applications is controlled through the <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Camera_Framework/CCameraClass.html#%3a%3aCCamera%3a%3aCCameraAdvancedSettings" format="application/java-archive">CCameraAdvancedSettings class</xref>. For more information on+
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using autofocus, see:</p>+
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<ul>+
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<li><p><xref href="GUID-6A7F8298-F3E9-513C-8C1F-D057AC62E5E3.dita">Advanced Settings+
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for Focus, Drive Modes, and Bracket Modes</xref></p></li>+
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<li><p><xref href="http://wiki.forum.nokia.com/index.php/TSS001129_-_Using_the_camera_autofocus_feature_in_S60_devices" scope="external">Using the camera autofocus feature in S60 devices</xref> on+
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Forum Nokia.</p></li>+
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</ul>+
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<fig id="GUID-BD935125-B7F9-4223-BC94-0B4A663DE13C">+
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<title>Implementation of autofocus</title>+
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<image href="GUID-57C10E91-F0CD-494E-96CE-92FB1E06CB53_d0e507568_href.png" placement="inline"/>+
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</fig>+
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<p>Pressing the camera shutter key on the device halfway down generates additional+
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key events. The key events can be used to activate autofocus if the camera+
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hardware supports the functionality. Shutter release (image capture) can be+
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triggered by pressing the key all the way down. The key presses generate separate+
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key events. To capture other than autofocus key events from the shutter key,+
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you need the <codeph>SwEvent</codeph> <xref href="GUID-6971B0A2-F79B-4E05-8AF3-BB1FC1932A22.dita">capability</xref>.</p>+
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<p>The settings you can use in your application depend on the camera hardware+
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on the device. The Camera API allows you to query almost all features of the+
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device camera. For example, to get a list of supported advanced settings,+
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use the <xref href="jar:GUID-35228542-8C95-4849-A73F-2B4F082F0C44.jar!/sdk/doc_source/reference/reference-cpp/Camera_Framework/CCameraClass.html#%3a%3aCCamera%3a%3aCCameraAdvancedSettings%3a%3aGetSupportedSettingsL%28RArray%26lt%3b%20TUid%20%26gt%3b%20%26amp%3b%29const" format="application/java-archive"><codeph>CCameraAdvancedSettings::GetSupportedSettingsL()</codeph></xref> method.</p>+
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<p>For more information on how to easily use the device camera with zoom and+
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autofocus by using a CameraWrapper made by Forum Nokia, see <xref href="http://www.forum.nokia.com/info/sw.nokia.com/id/9a3e1226-79db-4c8e-bd70-7d9d22aaa6eb/S60_Platform_Camera_Example.html" scope="external">Camera Example</xref> on Forum Nokia. The Camera Wrapper+
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provides a unified interface for various Symbian camera APIs. The example+
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application supports the use of both the keypad and touch UI. The application+
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can be self-signed, but it also provides an option to use the dedicated camera+
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key (Symbian signing required).</p>+
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<section id="GUID-0EABEC5B-D4B0-47F1-AEC1-11A929465BC5"><title>See also</title><p><xref href="GUID-0FD204B8-4207-577B-AF3A-6E210D63F78E.dita">Advanced Camera Settings+
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Tutorial</xref></p></section>+
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</conbody></concept>+
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