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<concept id="GUID-70B9796F-8CF3-5DC4-93B4-0B1FED936169" xml:lang="en"><title>UI
Data MTM implementation</title><prolog><metadata><keywords/></metadata></prolog><conbody>
<p> <b>Note:</b> This example is designed to work with Techview and there
is no guarantee that it will work on other interfaces </p>
<p>The <filepath>txti</filepath> project demonstrates a UI Data MTM. The central
class is <codeph>CTxtiMtmUiData</codeph>, derived from the User Interface
MTM base class <codeph>CBaseMtmUiData</codeph>. </p>
<p> <filepath>txti</filepath> implements the following MTM functionality: </p>
<section><title>Example Code</title> <p>Click on the following link to download
the example: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/zips/guid-419758e4-b663-48d3-bf21-d9c4bb00da23.zip" scope="external">TextMTM.zip</xref>  </p><p>Click: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/guid-419758e4-b663-48d3-bf21-d9c4bb00da23.html" scope="peer">browse</xref> to view the example code. </p> <p>The
files reproduced here are the main files contained in the examples directory.
Some extra files may be needed to run the examples, and these will be found
in the appropriate examples directory. </p> </section>
<section><title>Class summary</title><p><xref href="GUID-899C6D87-5712-34A7-902C-EA452894700C.dita"><apiname>CBaseMtmUiData</apiname></xref></p></section>
<section><title>Icons</title> <p>Icons are provided for messages, folders,
and services, for use in the message browser. They are built into a Symbian
OS multi-bitmap file <filepath>txti.mbm</filepath>. <codeph>ContextIcon()</codeph> selects
the correct icon depending on the entry context. </p> </section>
<section><title>MTM-specific operations</title> <p>Menu specifications for
the two MTM-specific operations, Refresh and Export text to file, are provided
in the resource <codeph>r_textud_function_array</codeph>. <codeph>OperationSupportedL()</codeph> determines
whether these operations are appropriate to the entry context. </p> </section>
<section><title>Context-specific information (Can&lt;Operation&gt; functions)</title> <p>Implementations
of these functions check that that the specific operation is available and
appropriate to the context. </p> </section>
</conbody></concept>