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<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 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>