57           </title> <image href="GUID-10936B26-D4F3-5EC6-BBBA-009AA27045F7_d0e599841_href.jpg" placement="inline"/></fig> <table id="GUID-80FCAA03-DF25-5F0C-9958-3CEBF739AEA5"><tgroup cols="2"><colspec colname="col0"/><colspec colname="col1"/><thead><row><entry>API</entry> <entry>Description</entry> </row> </thead> <tbody><row><entry><p> <xref href="GUID-1ABB0CFA-A678-37F4-A315-D99C9FCC5321.dita"><apiname>TMTPTypeFlatBase </apiname></xref>  </p> </entry> <entry><p>The base class of MTP flat data types. </p> </entry> </row> <row><entry><p> <xref href="GUID-22FA2C54-7FC1-3973-AE71-A43386D44D9A.dita"><apiname>TMTPTypeEvent</apiname></xref>  </p> </entry> <entry><p>Represents MTP event dataset. </p> </entry> </row> <row><entry><p> <xref href="GUID-E6DEAAFF-8F6D-3AED-AD94-ECF4B0C72E89.dita"><apiname>TMTPTypeRequest</apiname></xref>  </p> </entry> <entry><p>Represents MTP operation request dataset. </p> </entry> </row> <row><entry><p> <xref href="GUID-E828F5A9-AFFA-3452-B5C3-7FFD4C4422AF.dita"><apiname>TMTPTypeResponse</apiname></xref>  </p> </entry> <entry><p>Represents MTP operation response dataset. </p> </entry> </row> </tbody> </tgroup> </table> <p> <b> Complex data type</b> –a variable-length contiguous array or string. The following diagram shows the complex classes and their relationships. </p> <fig id="GUID-147EF226-9C6B-523B-BB92-7FE9395C3639"><title>

    57           </title> <image href="GUID-10936B26-D4F3-5EC6-BBBA-009AA27045F7_d0e620864_href.jpg" placement="inline"/></fig> <table id="GUID-80FCAA03-DF25-5F0C-9958-3CEBF739AEA5"><tgroup cols="2"><colspec colname="col0"/><colspec colname="col1"/><thead><row><entry>API</entry> <entry>Description</entry> </row> </thead> <tbody><row><entry><p> <xref href="GUID-1ABB0CFA-A678-37F4-A315-D99C9FCC5321.dita"><apiname>TMTPTypeFlatBase </apiname></xref>  </p> </entry> <entry><p>The base class of MTP flat data types. </p> </entry> </row> <row><entry><p> <xref href="GUID-22FA2C54-7FC1-3973-AE71-A43386D44D9A.dita"><apiname>TMTPTypeEvent</apiname></xref>  </p> </entry> <entry><p>Represents MTP event dataset. </p> </entry> </row> <row><entry><p> <xref href="GUID-E6DEAAFF-8F6D-3AED-AD94-ECF4B0C72E89.dita"><apiname>TMTPTypeRequest</apiname></xref>  </p> </entry> <entry><p>Represents MTP operation request dataset. </p> </entry> </row> <row><entry><p> <xref href="GUID-E828F5A9-AFFA-3452-B5C3-7FFD4C4422AF.dita"><apiname>TMTPTypeResponse</apiname></xref>  </p> </entry> <entry><p>Represents MTP operation response dataset. </p> </entry> </row> </tbody> </tgroup> </table> <p> <b> Complex data type</b> –a variable-length contiguous array or string. The following diagram shows the complex classes and their relationships. </p> <fig id="GUID-147EF226-9C6B-523B-BB92-7FE9395C3639"><title>

    59           </title> <image href="GUID-4666DC80-EF7D-5761-9B6B-B2D14BDAB762_d0e599935_href.jpg" placement="inline"/></fig> <table id="GUID-E7D6EC73-7607-55E1-BBFD-8477F4A133B5"><tgroup cols="2"><colspec colname="col0"/><colspec colname="col1"/><thead><row><entry>API</entry> <entry>Description</entry> </row> </thead> <tbody><row><entry><p> <xref href="GUID-FF497532-C4AD-387D-87D5-3898EE6E6691.dita"><apiname>CMTPTypeArray</apiname></xref>  </p> </entry> <entry><p>Represents MTP array data type. </p> </entry> </row> <row><entry><p> <xref href="GUID-E9359E92-6521-3438-B32B-0285B4863A61.dita"><apiname>CMTPTypeFile</apiname></xref>  </p> </entry> <entry><p>Represents MTP binary object data type. </p> </entry> </row> <row><entry><p> <xref href="GUID-415619B7-BAC7-31BC-BA18-5A33CCA79F4B.dita"><apiname>CMTPTypeString</apiname></xref>  </p> </entry> <entry><p>Represents MTP string data type. </p> </entry> </row> </tbody> </tgroup> </table> <p> <b> Compound data type</b> –a mixed sequence of simple, flat, complex and compound types. </p> <p>Compound classes were initially derived from <xref href="GUID-30FD4C57-0B74-36B6-9F93-49FD816DDA11.dita"><apiname>CMTPTypeCompoundBase</apiname></xref>. The derived class can represent a list dataset or an element of a list dataset. For example, <xref href="GUID-DF980D13-2A8D-3863-A45D-4E44AD04E78A.dita"><apiname>CMTPTypeObjectPropListElement</apiname></xref> is an element of <xref href="GUID-0A1A998F-3E6C-362D-A1A2-6B32339380FB.dita"><apiname>CMTPTypeObjectPropList</apiname></xref>. They are both derived from <xref href="GUID-30FD4C57-0B74-36B6-9F93-49FD816DDA11.dita"><apiname>CMTPTypeCompoundBase</apiname></xref>. </p> <p> <xref href="GUID-F678E2AD-5F1F-3C47-8157-3412B5C6DF8C.dita"><apiname>CMTTypeList</apiname></xref> is then added to represent list dataset. It derives from <xref href="GUID-30FD4C57-0B74-36B6-9F93-49FD816DDA11.dita"><apiname>CMTPTypeCompoundBase</apiname></xref>. The list classes added later are derived from <xref href="GUID-F678E2AD-5F1F-3C47-8157-3412B5C6DF8C.dita"><apiname>CMTTypeList</apiname></xref>. For example, <xref href="GUID-A055345B-D7A5-3A30-A16A-27302A956CF5.dita"><apiname>CMTPTypeServicePropertyList</apiname></xref> is derived from <xref href="GUID-F678E2AD-5F1F-3C47-8157-3412B5C6DF8C.dita"><apiname>CMTTypeList</apiname></xref> and its elment <xref href="GUID-242F6B40-ADAD-34DC-854D-36B03048D9AE.dita"><apiname>CMTPTypeServicePropertyElement</apiname></xref> is derived from <xref href="GUID-30FD4C57-0B74-36B6-9F93-49FD816DDA11.dita"><apiname>CMTPTypeCompoundBase</apiname></xref>. </p> <p> <b>Note</b>:<codeph>CMTPTypeCompoundBase::ChunkAppendL()</codeph> can be used to append any <xref href="GUID-FD2BCFE4-27DC-3E6E-96E3-5E5EE7B9EDBD.dita"><apiname>MMTPType</apiname></xref> data types to the compound data. </p> <p>The following diagram and table describe the compound base classes. For a complete set of the derived classes, refer the MTP API references. </p> <fig id="GUID-F0884369-56D9-5F49-8C2D-A774856E54DC"><title>

    59           </title> <image href="GUID-4666DC80-EF7D-5761-9B6B-B2D14BDAB762_d0e620958_href.jpg" placement="inline"/></fig> <table id="GUID-E7D6EC73-7607-55E1-BBFD-8477F4A133B5"><tgroup cols="2"><colspec colname="col0"/><colspec colname="col1"/><thead><row><entry>API</entry> <entry>Description</entry> </row> </thead> <tbody><row><entry><p> <xref href="GUID-FF497532-C4AD-387D-87D5-3898EE6E6691.dita"><apiname>CMTPTypeArray</apiname></xref>  </p> </entry> <entry><p>Represents MTP array data type. </p> </entry> </row> <row><entry><p> <xref href="GUID-E9359E92-6521-3438-B32B-0285B4863A61.dita"><apiname>CMTPTypeFile</apiname></xref>  </p> </entry> <entry><p>Represents MTP binary object data type. </p> </entry> </row> <row><entry><p> <xref href="GUID-415619B7-BAC7-31BC-BA18-5A33CCA79F4B.dita"><apiname>CMTPTypeString</apiname></xref>  </p> </entry> <entry><p>Represents MTP string data type. </p> </entry> </row> </tbody> </tgroup> </table> <p> <b> Compound data type</b> –a mixed sequence of simple, flat, complex and compound types. </p> <p>Compound classes were initially derived from <xref href="GUID-30FD4C57-0B74-36B6-9F93-49FD816DDA11.dita"><apiname>CMTPTypeCompoundBase</apiname></xref>. The derived class can represent a list dataset or an element of a list dataset. For example, <xref href="GUID-DF980D13-2A8D-3863-A45D-4E44AD04E78A.dita"><apiname>CMTPTypeObjectPropListElement</apiname></xref> is an element of <xref href="GUID-0A1A998F-3E6C-362D-A1A2-6B32339380FB.dita"><apiname>CMTPTypeObjectPropList</apiname></xref>. They are both derived from <xref href="GUID-30FD4C57-0B74-36B6-9F93-49FD816DDA11.dita"><apiname>CMTPTypeCompoundBase</apiname></xref>. </p> <p> <xref href="GUID-F678E2AD-5F1F-3C47-8157-3412B5C6DF8C.dita"><apiname>CMTTypeList</apiname></xref> is then added to represent list dataset. It derives from <xref href="GUID-30FD4C57-0B74-36B6-9F93-49FD816DDA11.dita"><apiname>CMTPTypeCompoundBase</apiname></xref>. The list classes added later are derived from <xref href="GUID-F678E2AD-5F1F-3C47-8157-3412B5C6DF8C.dita"><apiname>CMTTypeList</apiname></xref>. For example, <xref href="GUID-A055345B-D7A5-3A30-A16A-27302A956CF5.dita"><apiname>CMTPTypeServicePropertyList</apiname></xref> is derived from <xref href="GUID-F678E2AD-5F1F-3C47-8157-3412B5C6DF8C.dita"><apiname>CMTTypeList</apiname></xref> and its elment <xref href="GUID-242F6B40-ADAD-34DC-854D-36B03048D9AE.dita"><apiname>CMTPTypeServicePropertyElement</apiname></xref> is derived from <xref href="GUID-30FD4C57-0B74-36B6-9F93-49FD816DDA11.dita"><apiname>CMTPTypeCompoundBase</apiname></xref>. </p> <p> <b>Note</b>:<codeph>CMTPTypeCompoundBase::ChunkAppendL()</codeph> can be used to append any <xref href="GUID-FD2BCFE4-27DC-3E6E-96E3-5E5EE7B9EDBD.dita"><apiname>MMTPType</apiname></xref> data types to the compound data. </p> <p>The following diagram and table describe the compound base classes. For a complete set of the derived classes, refer the MTP API references. </p> <fig id="GUID-F0884369-56D9-5F49-8C2D-A774856E54DC"><title>

    61           </title> <image href="GUID-A4559463-7665-5733-9AEB-2316C991AE76_d0e600079_href.jpg" placement="inline"/></fig> <table id="GUID-89D28F17-CF5D-541B-A70D-E2483DDA72E5"><tgroup cols="2"><colspec colname="col0"/><colspec colname="col1"/><thead><row><entry>API</entry> <entry>Description</entry> </row> </thead> <tbody><row><entry><p> <xref href="GUID-30FD4C57-0B74-36B6-9F93-49FD816DDA11.dita"><apiname>CMTPTypeCompoundBase</apiname></xref>  </p> </entry> <entry><p>The base class of MTP compound data types. </p> </entry> </row> <row><entry><p> <xref href="GUID-98C9BE6A-6336-36FF-BE4A-26B34D7F878B.dita"><apiname>CMTPTypeList</apiname></xref>  </p> </entry> <entry><p>The base class of MTP list dataset. </p> </entry> </row> <row><entry><p> <xref href="GUID-0FAC3211-78C5-38E2-AC4D-30AFAEB09265.dita"><apiname>RMTPType</apiname></xref>  </p> </entry> <entry><p>The general class for containing, accessing, and manipulating a reference to any <xref href="GUID-FD2BCFE4-27DC-3E6E-96E3-5E5EE7B9EDBD.dita"><apiname>MMTPType</apiname></xref> -derived data type. </p> </entry> </row> </tbody> </tgroup> </table> </section> <section><title>Using MTP Data Types library</title> <p>MTP data providers use the MTP Data Types library to process datasets for MTP operations and events. Device creators can provide their extended data types. </p> </section> </conbody></concept>

    61           </title> <image href="GUID-A4559463-7665-5733-9AEB-2316C991AE76_d0e621102_href.jpg" placement="inline"/></fig> <table id="GUID-89D28F17-CF5D-541B-A70D-E2483DDA72E5"><tgroup cols="2"><colspec colname="col0"/><colspec colname="col1"/><thead><row><entry>API</entry> <entry>Description</entry> </row> </thead> <tbody><row><entry><p> <xref href="GUID-30FD4C57-0B74-36B6-9F93-49FD816DDA11.dita"><apiname>CMTPTypeCompoundBase</apiname></xref>  </p> </entry> <entry><p>The base class of MTP compound data types. </p> </entry> </row> <row><entry><p> <xref href="GUID-98C9BE6A-6336-36FF-BE4A-26B34D7F878B.dita"><apiname>CMTPTypeList</apiname></xref>  </p> </entry> <entry><p>The base class of MTP list dataset. </p> </entry> </row> <row><entry><p> <xref href="GUID-0FAC3211-78C5-38E2-AC4D-30AFAEB09265.dita"><apiname>RMTPType</apiname></xref>  </p> </entry> <entry><p>The general class for containing, accessing, and manipulating a reference to any <xref href="GUID-FD2BCFE4-27DC-3E6E-96E3-5E5EE7B9EDBD.dita"><apiname>MMTPType</apiname></xref> -derived data type. </p> </entry> </row> </tbody> </tgroup> </table> </section> <section><title>Using MTP Data Types library</title> <p>MTP data providers use the MTP Data Types library to process datasets for MTP operations and events. Device creators can provide their extended data types. </p> </section> </conbody></concept>