<?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-E9F203A6-D9E3-41B7-9FC4-24EDE20C4753" xml:lang="en"><title>Error
note</title><prolog><metadata><keywords/></metadata></prolog><conbody>
<p>Error notes are a warning to the user. They should only be used when the
user has tried to do something that may cause a considerable problem.</p>
<fig id="GUID-2265C3F3-86BA-4520-9C5A-BF522D6E3C9C">
<title>Error note</title>
<image href="GUID-DAB7AB0C-8B32-4472-8EDC-AA8A5A01205C_d0e59450_href.png" placement="inline"/>
</fig>
<section id="GUID-A62B2AD0-BA1F-4112-9B61-25D29D3B1854"><title>Guidelines
for using error notes</title>       <p>Use an error note when the user does
something that may cause considerable harm immediately or later. For example,
the user gives a wrong PIN code. Repeating this couple of times would block
the SIM card.</p> <p>To keep error notes effective, they should be used very
sparingly. In most ordinary error cases, an <xref href="GUID-E449F309-F230-46F9-B777-EF64D0E3191D.dita">information
note</xref> should be used instead of an error note. It has a less aggressive
sound and graphics.</p>  <p>It should also be noted that if the information
to be given is such that the user must see and acknowledge it, a confirmation
query is a better component to use than a note. Then the user must press a
key to dismiss the information, and there is time to read and think about
the notification.</p>           </section>
<section id="GUID-247815E4-E5BD-456A-9AD0-C3B856C5E274"><title>Using
error notes in applications</title><p>You can create either a basic error
note that is displayed only when your application is in the foreground or
a global note that stays displayed even if the application launching the note
is not in the foreground. The related APIs are the <xref format="html" href="specs/guides/Notes_API_Specification/Notes_API_Specification.html" scope="peer">Notes API</xref> (for basic notes) and the <xref format="html" href="specs/guides/Notifiers_API_Specification/Notifiers_API_Specification.html" scope="peer">Notifiers API</xref> (for global notes). </p><p>To use an error
note with the default icon, text, sound, and duration, create an instance
of the note <xref href="GUID-2261A396-8AF8-3914-B78A-993DDE0B58A8.dita"><apiname>CAknErrorNote</apiname></xref> class.</p><p>To create a global
error note, use the <xref href="GUID-2FF927BE-12D6-35E9-8466-011C252E5A66.dita"><apiname>CAknGlobalNote</apiname></xref> class in the <xref format="html" href="specs/guides/Notifiers_API_Specification/Notifiers_API_Specification.html" scope="peer">Notifiers API</xref>. For implementation information, see <xref format="html" href="specs/guides/Notes_API_Specification/Notes_API_Specification.html#Notes_API_Specification.topic3.5" scope="peer">Using global notes</xref> and <xref format="html" href="specs/guides/Notes_API_Specification/Notes_API_Specification.html#Notes_API_Specification.topic3.6" scope="peer">Using global notes with user interaction</xref>.</p><p>For basic
notes, you can change the icon or text displayed in the note, use a different
kind of sound, or change the note duration using the setter methods in the <xref href="GUID-267BF374-66FD-3B7F-A56B-2A9689AEA35E.dita"><apiname>CAknNoteDialog</apiname></xref> class: <ul>
<li><p><xref href="GUID-267BF374-66FD-3B7F-A56B-2A9689AEA35E.dita#GUID-267BF374-66FD-3B7F-A56B-2A9689AEA35E/GUID-414C2EDC-E2D4-3B36-9436-588A6E7DB674"><apiname>CAknNoteDialog::SetIconL()</apiname></xref></p></li>
<li><p><xref href="GUID-267BF374-66FD-3B7F-A56B-2A9689AEA35E.dita#GUID-267BF374-66FD-3B7F-A56B-2A9689AEA35E/GUID-3D9DDD5D-92CB-3CF9-A8E8-A551FDDD3398"><apiname>CAknNoteDialog::SetTextL()</apiname></xref></p></li>
<li><p><xref href="GUID-267BF374-66FD-3B7F-A56B-2A9689AEA35E.dita#GUID-267BF374-66FD-3B7F-A56B-2A9689AEA35E/GUID-C512B481-10C3-343A-93C0-6661544815C0"><apiname>CAknNoteDialog::SetTone()</apiname></xref></p></li>
<li><p><xref href="GUID-267BF374-66FD-3B7F-A56B-2A9689AEA35E.dita#GUID-267BF374-66FD-3B7F-A56B-2A9689AEA35E/GUID-5C457F5F-71DB-3C45-A175-0AB6EA188186"><apiname>CAknNoteDialog::SetTimeout()</apiname></xref></p></li>
</ul></p><p>For information on customizing global notes, see <xref format="html" href="specs/guides/Notifiers_API_Specification/Notifiers_API_Specification.html#Notifiers_API_Specification.topic3.4" scope="peer">Enhancing global notes</xref>. You can change the graphic, animation,
tone, and softkeys using the methods in the <xref href="GUID-2FF927BE-12D6-35E9-8466-011C252E5A66.dita"><apiname>CAknGlobalNote</apiname></xref> class:<ul>
<li><p><xref href="GUID-2FF927BE-12D6-35E9-8466-011C252E5A66.dita#GUID-2FF927BE-12D6-35E9-8466-011C252E5A66/GUID-34F19A47-92FD-33B8-9691-4249000C4466"><apiname>CAknGlobalNote::SetGraphic()</apiname></xref></p></li>
<li><p><xref href="GUID-2FF927BE-12D6-35E9-8466-011C252E5A66.dita#GUID-2FF927BE-12D6-35E9-8466-011C252E5A66/GUID-94D9D112-D50F-30F4-BF42-6D2B0096156E"><apiname>CAknGlobalNote::SetAnimation()</apiname></xref></p></li>
<li><p><xref href="GUID-2FF927BE-12D6-35E9-8466-011C252E5A66.dita#GUID-2FF927BE-12D6-35E9-8466-011C252E5A66/GUID-D51CD0FE-5672-30D8-9DF0-39E94489FBB6"><apiname>CAknGlobalNote::SetTone()</apiname></xref></p></li>
<li><p><xref href="GUID-2FF927BE-12D6-35E9-8466-011C252E5A66.dita#GUID-2FF927BE-12D6-35E9-8466-011C252E5A66/GUID-5BCD9086-4432-3D69-8194-D0131A1CD1FC"><apiname>CAknGlobalNote::SetSoftkeys()</apiname></xref></p></li>
</ul> </p></section>

</conbody><related-links>
<link href="GUID-875D74D3-5663-42E3-A4B9-294F82FF5486.dita"><linktext>Confirmation
note</linktext></link>
<link href="GUID-E449F309-F230-46F9-B777-EF64D0E3191D.dita"><linktext>Information
note</linktext></link>
<link href="GUID-ED198434-94C0-4842-8353-B2FA319BA5C7.dita"><linktext>Warning note</linktext>
</link>
<link href="GUID-11B69814-5B3E-42AE-844E-998A7A08E654.dita"><linktext>Permanent
note</linktext></link>
<link href="GUID-93EFC9E4-8779-415D-ABEB-2AC9991996DD.dita"><linktext>Wait note</linktext>
</link>
<link href="GUID-81E33E18-D390-4110-8D85-1FCDA9CC311E.dita"><linktext>Progress
note</linktext></link>
</related-links></concept>