Symbian3/SDK/Source/GUID-F25C17AC-BA88-4965-BAE8-AEF0E2EA66EC.dita
changeset 7 51a74ef9ed63
child 11 5072524fcc79
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Symbian3/SDK/Source/GUID-F25C17AC-BA88-4965-BAE8-AEF0E2EA66EC.dita	Wed Mar 31 11:11:55 2010 +0100
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
+<!-- This component and the accompanying materials are made available under the terms of the License 
+"Eclipse Public License v1.0" which accompanies this distribution, 
+and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
+<!-- Initial Contributors:
+    Nokia Corporation - initial contribution.
+Contributors: 
+-->
+<!DOCTYPE concept
+  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<concept id="GUID-F25C17AC-BA88-4965-BAE8-AEF0E2EA66EC" xml:lang="en"><title>Zooming
+actions</title><shortdesc>Mobile device users must be able to zoom in and out consistently
+within applications on a mobile device. However the zooming actions may  differ
+from one device model to another.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
+<p>The product features and form factor of a mobile device determine which
+zooming actions application developers should make available on it: </p>
+<ul>
+<li><p>If the device has an ITU-T keypad, the asterisk (*) key zooms in and
+the hash mark (#) key zooms out. This functionality is not available in editors
+or other states where the keys play another role. In these cases, the zoom
+functions, if applicable, must be available in the <uicontrol>Options</uicontrol> menu. </p></li>
+<li><p>If the device has a QWERTY or half-QWERTY keyboard, use the two topmost
+keys at the top left of the keyboard for zooming in and out. For example,
+on a Latin keyboard, use the Q key to zoom in and the A key to zoom out. Some
+products might have zooming symbols printed on the keyboard to help users
+find the zooming features. Again, the functions are not available in editors.</p></li>
+<li><p>On touch devices, users can use touch stripes to zoom. Finger movement
+along the stripe controls zooming. Applications may support different number
+of zoom levels. It should be possible to zoom across the full range with one
+swipe.</p></li>
+<li><p>On touch devices with multi-touch support, users can use pinch zoom.
+See <xref href="GUID-17C64C2F-9426-4B41-9F0A-23060289D644.dita">Multi-touch</xref> section
+for more details on pinch in and pinch out.</p></li>
+<li><p>On touch devices, some applications may support double-tapping zoom.
+A double tap can toggle between zoomed and normal view, but this depends on
+the application.</p></li>
+</ul>
+</conbody></concept>
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