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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 id="GUID-D230F67C-8D31-41A6-B298-0AF0DC45A130"><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 id="GUID-F62B8A55-BBFF-4B09-92AB-DB6BECAEDE7F"><title>Class summary</title><p><xref href="GUID-899C6D87-5712-34A7-902C-EA452894700C.dita"><apiname>CBaseMtmUiData</apiname></xref></p></section>

<section id="GUID-2149EB45-BDA8-41EE-887D-69A3439DF2E1"><title>Icons</title> <p>Icons are provided for messages, folders,

and services, for use in the message browser. They are built into a Symbian

platform multi-bitmap file <filepath>txti.mbm</filepath>. <codeph>ContextIcon()</codeph> selects

the correct icon depending on the entry context. </p> </section>

<section id="GUID-3D7F8936-7D6B-450C-BF8F-88E8ACF356F0"><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 id="GUID-8C741A4E-6CB9-498C-89F5-C288010444DD"><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>