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     7     Nokia Corporation - initial contribution.

     8 Contributors: 

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    10 <!DOCTYPE task

    11   PUBLIC "-//OASIS//DTD DITA Task//EN" "task.dtd">

    12 <task id="GUID-4FE4B515-EE2B-47DB-BECE-E390E4EB2C3E" xml:lang="en"><title>Switching

    13 ON the lights</title><prolog><metadata><keywords/></metadata></prolog><taskbody>

    14 <context>       <p>The LightOnL() method call switches ON the specified target

    15 light. Multiple light targets can be specified using bitwise-or.</p><p>The

    16 following code snippet demonstrates how to switch ON lights for <b>infinite</b> duration

    17 with default intensity for multiple targets (Lights are switched ON with fade-in):</p><codeblock xml:space="preserve">iLight-&gt;LightOnL( CHWRMLight::EPrimaryDisplay | CHWRMLight::EPrimaryKeyboard );</codeblock><p>The following code snippet demonstrates how to switch ON lights for the <b>specified</b> duration

    18 with default intensity for one target (Lights are switched ON with fade-in):</p><codeblock xml:space="preserve">//aDuration = 5000 milliseconds

    19 light-&gt;LightOnL( CHWRMLight::ESecondaryDisplay, 5000 );</codeblock><p>After

    20 the duration expires, if there has not been a previous infinite time duration

    21 call in this session, the light state for target is changed to whatever state

    22 was caused by the last infinite time duration call, or default state determined

    23 by inactivity timer.</p><p>The following code snippet demonstrates how to

    24 switch ON lights for the specified duration with specified intensity for one

    25 target (fade-in is also controlled):</p><codeblock xml:space="preserve">// aDuration = 5000 milliseconds

    26 // aIntensity = 50, intensity can be between KHWRMLightMinIntensity and KHWRMLightMaxIntensity, inclusive.

    27 // aFadeIn = EFalse means that lights will turn ON instantly and fade-in is not used,

    28 // ETrue would mean that lights would smoothly fade-in.

    29 light-&gt;LightOnL( CHWRMLight::ESecondaryDisplay, 5000, 50, EFalse );</codeblock><note> All

    30 devices do not support user-defined intensity or fade-in. In such scenarios,

    31 the device behaves in its default method.</note></context>

    32 </taskbody></task>