Symbian3/SDK/Source/GUID-C11AF871-56C8-4EA4-A1E0-E2B23372EF84.dita
changeset 7 51a74ef9ed63
child 8 ae94777fff8f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Symbian3/SDK/Source/GUID-C11AF871-56C8-4EA4-A1E0-E2B23372EF84.dita	Wed Mar 31 11:11:55 2010 +0100
@@ -0,0 +1,29 @@
+<?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-C11AF871-56C8-4EA4-A1E0-E2B23372EF84" xml:lang="en"><title>Touch
+down and hold</title><prolog><metadata><keywords/></metadata></prolog><conbody>
+<p>Touch down and hold is used, for example, to open the stylus pop-up menu.
+It is also referred as long tap. Applications can use an animation (starts
+after 0.15 seconds from the start of a stylus touch down event) to indicate
+that a Touch down and hold action has been initiated.</p>
+<p>On the whole, touch down and hold may be difficult for users to find, and
+therefore its use should be considered carefully. As in the case of task swapping,
+the use of touch down and hold should aim at being analogous to using a long
+key press on the hardware keys.</p>
+<section id="GUID-F3F82BBF-587D-471E-A2DE-E9248077EE0A"><title>Using
+touch down and hold events in C++ applications</title><p>The API to use for
+receiving touch down and hold events in applications or controls is the <xref href="GUID-92018B6B-3CBB-434D-9E61-F271C67E98E3.dita">Touch UI utilities API</xref>.</p><p>Use
+the class <codeph>CAknLongTapDetector</codeph> to receive touch down and hold
+events.</p><p>The long tap handler must inherit from the class <xref href="GUID-8ABC81C9-1D07-3D81-B744-BE5275ED61CA.dita"><apiname>MAknLongTapDetectorCallBack</apiname></xref> and
+implement the <xref href="GUID-8ABC81C9-1D07-3D81-B744-BE5275ED61CA.dita#GUID-8ABC81C9-1D07-3D81-B744-BE5275ED61CA/GUID-DF019AAA-475C-3C96-BB77-5CC167CF4C3C"><apiname>MAknLongTapDetectorCallBack::HandleLongTapEventL()</apiname></xref> callback
+function.</p></section>
+</conbody></concept>
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