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<concept id="GUID-F43E458D-6650-5BB0-871D-2E4EB1353C48" xml:lang="en"><title>Application

Services</title><prolog><metadata><keywords/></metadata></prolog><conbody>

<section id="GUID-8BD6CF61-80B6-5869-AB85-F572C590DB30"><title>Alarm Server</title> <p>The

AlarmServer is used to set alarms such as clock or calendar applications.

The Alarm Server manages a queue of alarms and notifies the user in conjunction

with other Application Framework components. </p> <p>The AlarmServer maintains

the queue of all system-wide alarms, this is known as Alarm handling. Session

alarms are for a single session only and are completed when an alarm expires.

Non session alarms occur if a session orphans its alarm by closing its connection

to the AlarmServer. </p> </section>

<section id="GUID-32519F1C-429A-59C9-B945-D0B1F81A0AA5"><title>Calendar Conversion</title> <p>For

applications that require Chinese date support calcon is a calendar conversion

utility which provides conversion between Gregorian and Chinese Lunar calendar

dates. The conversion is restricted to date conversion – time conversion is

not supported. Corrections have been applied where Chinese lunar days are

deemed to start at times other than midnight. </p> <p>Julian dates are used

for internal storage. A Julian date is a count of days from a point in time

(defined as noon 24/11/4713 BC). Chinese Lunar calendar dates consist of: </p> <ul>

<li id="GUID-9BA022D5-64C2-5D36-AD11-844183EBDA23"><p>Year cycle </p> </li>

<li id="GUID-9EFCC4A8-EF82-541D-B0A3-792CD1CD3144"><p>Year (1-60) </p> </li>

<li id="GUID-B3F2059F-4CAF-54B2-B897-673C0125D8CD"><p>Month (1-12) </p> </li>

<li id="GUID-85762B70-2F4E-55CE-A25C-C1E72114E306"><p>Whether or not the month

is a leap month </p> </li>

<li id="GUID-4727C645-CAED-5081-8E9B-22369EA7668E"><p>Day in the month (1-29

or 1-30 in a leap month) </p> </li>

</ul> </section>

<section id="GUID-6EB921E1-0048-5388-8983-87172763FAB3"><title>Help Model</title> <p>Hlpmodel

enables the user to search for specific information on a help database. Help

databases contain rich text formatted data (including pictures) and metadata

used to identify help information for searching. </p> <p>The help launcher

is a small DLL that allows the device-specific help application to be launched

with a context sensitive identifier, so that a suitable help topic is displayed

within the help application. </p> </section>

<section id="GUID-D30706E5-7191-5349-A883-C200B73AFED1"><title>Time Zone Server</title> <p>Time

Zone Server provides functionality to convert between UTC times and local

“wall-clock” times. It allows for Daylight Savings Time (DST) rules and adjusts

local times accordingly. This functionality applies to both the current locale

and other specified locales. It also applies to any time, historical or future

(within a given range) at the specified locale </p> <p>The application allows

time conversion between UTC and local “wall-clock” time and automatic clock

adjustment for daylight saving. </p> <p>The Time Zone Compiler creates a Time

Zone Database for Symbian OS from the Olson Tz database, which provides a

collaborative compilation of information about the world's time zones. </p> </section>

<section id="GUID-4268D6AA-F468-5461-88A2-D6852D4AC69A"><title>Time Zone Localization</title> <p> The

Time Zone Localization component provides localisation support for time zone

names. The component makes use of the standard Symbian OS resource framework

for loading localizable strings. This allows licensees to provide localized

time zone and city name strings for target markets. </p> <p>Localizable text

includes: </p> <ul>

<li id="GUID-BEE1FDE0-3E2E-5F0F-82E0-C04711D6C4F2"><p>Time zone ID, generated

by the TzCompiler </p> </li>

<li id="GUID-C902710F-2EC0-5AD1-B3D4-FA9C7545A8C2"><p>Time zone standard name </p> </li>

<li id="GUID-31AAE78F-92C2-5794-BA55-575C118BFE41"><p>Time zone daylight savings

name </p> </li>

<li id="GUID-83B70D72-3F92-5316-B5BB-735AC0514E78"><p>Time zone short standard

name </p> </li>

<li id="GUID-60C26CE2-26A9-5617-8A93-BDD02DB24B9C"><p>Time zone short daylight

savings name </p> </li>

</ul> </section>

<section id="GUID-9DFB0954-9CDF-5DAF-BA7A-54A1D64833F7"><title>Versit</title> <p>The

Versit component provides a set of classes that can be used by application

or system developers to import and export data. The data is formatted according

to a set of standards initially defined by the Versit consortium. </p> <p>The

plain-text formatted data can be included in emails, saved to disk or transferred

from one application to another using streams. Two specifications have been

published: vCard for the transmission of contact information and vCal for

the transmission of calendaring information. </p> <p>Although the information

contained in contact data is different from that contained in calendar data,

the basic formatting of the information follows the same style. It is this

formatting style that has had a strong influence on the functional requirements

of the Versit component. </p> </section>