Presentation Context ID. The ID provides information about both the class type of the data and the Transfer Syntax to use when transferring the data.
Index of the Transfer Syntax to get.
The Transfer Syntax Name for the specified Presentation Context and index.
A DICOM Associate (Request or Accept) can have multiple Presentation Contexts. A DICOM Associate Request can have multiple Transfer Syntax entries for each Presentation Context. A Transfer Syntax can be retrieved by specifying the ID for the appropriate Presentation Context and the index for the appropriate Transfer Syntax.
For an example, refer to SendCEchoRequest.