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

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

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

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     6 <!-- Initial Contributors:

     7     Nokia Corporation - initial contribution.

     8 Contributors: 

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    10 <!DOCTYPE concept

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

    12 <concept id="GUID-C11AF871-56C8-4EA4-A1E0-E2B23372EF84" xml:lang="en"><title>Touch

    13 down and hold</title><prolog><metadata><keywords/></metadata></prolog><conbody>

    14 <p>Touch down and hold is used, for example, to open the Symbian

    15 stylus pop-up menu. Applications can use an animation (starts after 0.15 seconds

    16 from the start of a stylus down event) to indicate that a Touch down and hold

    17 action has been initiated.</p>

    18 <p>On the whole, Touch down and hold may be difficult for users to find, and

    19 therefore its use should be considered carefully. As in the case of task swapping,

    20 the use of Touch down and hold should aim at being analogous to using a long

    21 key press on the hardware keys.</p>

    22 <section id="GUID-F3F82BBF-587D-471E-A2DE-E9248077EE0A"><title>Using

    23 touch down and hold events in C++ applications</title><p>The API to use for

    24 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

    25 the class <xref href="jar:GUID-759FBC7F-5384-4487-8457-A8D4B76F6AA6.jar!/html/classCAknLongTapDetector.html" format="application/java-archive"><codeph>CAknLogTapDetector</codeph></xref> to

    26 receive touch down and hold events, called long tap events in the API reference.</p><p>Your

    27 long tap handler must inherit from the class <xref href="jar:GUID-759FBC7F-5384-4487-8457-A8D4B76F6AA6.jar!/html/classMAknLongTapDetectorCallBack.html" format="application/java-archive"><codeph>MAknLongTapDetectorCallBack</codeph></xref> and implement the <xref href="jar:GUID-759FBC7F-5384-4487-8457-A8D4B76F6AA6.jar!/html/classMAknLongTapDetectorCallBack.html#fe6ac5bacc8f58579a53889d524e661f" format="application/java-archive"><codeph>MAknLongTapDetectorCallBack::HandleLongTapEventL()</codeph></xref> call

    28 back function.</p></section>

    29 </conbody></concept>