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<task id="GUID-3A498F20-5953-483D-951F-496D063A337E" xml:lang="en"><title>Switching
OFF the lights</title><prolog><metadata><keywords/></metadata></prolog><taskbody>
<context><p>The <codeph>LightOffL()</codeph> method call switch OFF the specified
target light. Multiple light targets can be specified by using bitwise-or. </p><p>The
following code snippet demonstrates how to switch OFF lights for infinite
duration for multiple targets (Lights are switched OFF with fade-out): </p><codeblock xml:space="preserve">iLight-&gt;LightOffL( CHWRMExtendedLight::EPrimaryDisplay | CHWRMExtendedLight::EPrimaryKeyboard );</codeblock><p>The following code snippet demonstrates how to switch OFF lights for the
specified duration for one target (Lights are switched OFF with fade-out): </p><codeblock xml:space="preserve">// aDuration = 5000 milliseconds
light-&gt;LightOffL( CHWRMExtendedLight::ESecondaryDisplay, 5000 );</codeblock><p>After
the duration expires, if there are no previous infinite time duration call
in this session, the light state for target is changed to whatever state was
caused by the last infinite time duration call, or default state determined
by inactivity timer.</p><p>The following code snippet demonstrates how to
switch lights OFF for the specified duration for one target (fade-out is also
controlled): </p><codeblock xml:space="preserve">// aDuration = 5000 milliseconds
// aFadeOut = EFalse means that lights turn off instantly and fade-out is not used, 
// ETrue means that lights smoothly fade-out.
light-&gt;LightOnL( CHWRMExtendedLight::ESecondaryDisplay, 5000, EFalse );</codeblock><note> All
devices do not support fade-out. In such scenarios where fade-out is not supported,
the device behaves in its default state.</note></context>
</taskbody></task>