12 <concept id="GUID-D7DF85A8-1F90-5EC8-9EA1-EB33382849B0" xml:lang="en"><title>TAndRClasses:

    12 <concept id="GUID-D7DF85A8-1F90-5EC8-9EA1-EB33382849B0" xml:lang="en"><title>TAndRClasses: typical ‘T’ and ‘R’ type classes</title><prolog><metadata><keywords/></metadata></prolog><conbody>

    13 typical ‘T’ and ‘R’ type classes</title><prolog><metadata><keywords/></metadata></prolog><conbody>

    13 <section id="GUID-B210D03B-5045-41C5-A940-BD10B6A5935E"><title>Description</title> <p> <filepath>TAndRClasses</filepath> shows a typical ‘T’ class and a typical ‘R’ class. </p> <p>The ‘T’

    14 <section><title>Description</title> <p> <filepath>TAndRClasses</filepath> shows

    14 type is a value type, owning no external object. </p> <p>The ‘R’ type

    15 a typical ‘T’ class and a typical ‘R’ class. </p> <p>The ‘T’ type is a value

    15 is a resource type; typically this is proxy for an object owned elsewhere.

    16 type, owning no external object. </p> <p>The ‘R’ type is a resource type;

    16 In practice, the 'R' type is a handle to a resource owned and managed

    17 typically this is proxy for an object owned elsewhere. In practice, the 'R'

    17 by the Kernel. </p> <p>In this example, the ‘R’ class derives from

    18 type is a handle to a resource owned and managed by the Kernel. </p> <p>In

    18 the standard Symbian platform handle class <codeph>RTimer</codeph>. </p> </section>

    19 this example, the ‘R’ class derives from the standard Symbian platform handle

    19 <section id="GUID-7D492862-C13A-46D5-9C98-85A942A97E85"><title>Download</title> <p>Click on the following link to

    20 class <codeph>RTimer</codeph>. </p> </section>

    20 download the example: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/zips/guid-1bfb2b42-8897-4660-8409-5e9fd441745b.zip" scope="external"> TAndRClasses.zip</xref></p><p>Click on the following

    21 <section><title>Download</title> <p>Click on the following link to download

    21 link to download additional files: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/zips/guid-bd05bfa4-e51c-4cf7-b327-646b0b9e814d.zip" scope="external">CommonFramework.zip</xref></p><p>Click <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/guid-1bfb2b42-8897-4660-8409-5e9fd441745b.html" scope="peer"> browse TAndRClasses </xref> to view the example code.</p><p>Click <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/guid-bd05bfa4-e51c-4cf7-b327-646b0b9e814d.html" scope="peer">CommonFramework</xref> to view additional files.</p> </section>

    22 the example: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/zips/guid-1bfb2b42-8897-4660-8409-5e9fd441745b.zip" scope="external"> TAndRClasses.zip</xref></p><p>Click on the following link

    22 <section id="GUID-C08E8FD5-CB0D-4FAD-94F3-3EBCF3D71586"><title>Class summary</title><p> <xref href="GUID-8A423EA2-4264-30C9-9579-0466994E6E88.dita"><apiname>RTimer </apiname></xref>  <xref href="GUID-CD0A798E-7E42-3689-8E86-F5FD43C758FC.dita"><apiname>TCleanupItem </apiname></xref> <xref href="GUID-0DD554D7-B9B1-3FD3-898F-4D855144FCEA.dita"><apiname>CleanupStack </apiname></xref>  <xref href="GUID-E0B34F3E-D4C4-3232-B8B1-7DB35B454646.dita"><apiname>TRequestStatus</apiname></xref> </p></section>

    23 to download additional files: <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/zips/guid-bd05bfa4-e51c-4cf7-b327-646b0b9e814d.zip" scope="external">CommonFramework.zip</xref></p><p>Click <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/guid-1bfb2b42-8897-4660-8409-5e9fd441745b.html" scope="peer"> browse TAndRClasses </xref> to view the example code.</p><p>Click <xref href="guid-6013a680-57f9-415b-8851-c4fa63356636/guid-bd05bfa4-e51c-4cf7-b327-646b0b9e814d.html" scope="peer">CommonFramework</xref> to view additional files.</p> </section>

    23 <section id="GUID-F05BA78D-979A-4DB8-92F5-A446FCDBE808"><title>Build</title> <p>The example includes the two project

    24 <section><title>Class summary</title><p> <xref href="GUID-8A423EA2-4264-30C9-9579-0466994E6E88.dita"><apiname>RTimer </apiname></xref>  <xref href="GUID-CD0A798E-7E42-3689-8E86-F5FD43C758FC.dita"><apiname>TCleanupItem </apiname></xref> <xref href="GUID-0DD554D7-B9B1-3FD3-898F-4D855144FCEA.dita"><apiname>CleanupStack </apiname></xref>  <xref href="GUID-E0B34F3E-D4C4-3232-B8B1-7DB35B454646.dita"><apiname>TRequestStatus</apiname></xref> </p></section>

    24 files needed for building: <filepath>bld.inf</filepath> and the <filepath>.mmp</filepath> file. </p> <p> The Symbian platform build process

    25 <section><title>Build</title> <p>The example includes the two project files

    25 describes how to build this application, which results in an executable

    26 needed for building: <filepath>bld.inf</filepath> and the <filepath>.mmp</filepath> file. </p> <p><xref href="GUID-3100800B-B2F7-50EF-BD4C-3C345ECCB2A5.dita">The Symbian platform build

    26 called: </p> <p> <filepath>\epoc32\release\&lt;target&gt;\&lt;urel

    27 process</xref> describes how to build this application, which results in an

    28 executable called: </p> <p> <filepath>\epoc32\release\&lt;target&gt;\&lt;urel

    30 <section><title>Usage</title> <p>Run the executable <filepath>TANDRCLASSES.EXE</filepath>. </p> <p>Executables

    28 <section id="GUID-E7FA611D-AD03-42E8-835D-2F8CE873B929"><title>Usage</title> <p>Run the executable <filepath>TANDRCLASSES.EXE</filepath>. </p> <p>Executables for the emulator targets <filepath>wins</filepath> and <filepath>winscw</filepath> can be run on your PC. Executables

    31 for the emulator targets <filepath>wins</filepath> and <filepath>winscw</filepath> can

    29 for ARM targets must be copied to your target platform before being

    32 be run on your PC. Executables for ARM targets must be copied to your target

    30 run. </p> </section>

    33 platform before being run. </p> </section>