The Open Client ct_capability() parameters:
CS_DATA_XML – is a request sent to the server to determine whether the server supports XML.
CS_DATA_NOXML – is a parameter sent from the client to tell the server not to support xml for this specific connection.
To access XML datatypes, Open Client and Open Server implements:
CS_XML – a datatype.
CS_XML_TYPE – a datatype constant to identify the data’s datatype.
Setting the CS_DATAFMT parameter’s datatype to CS_XML_TYPE allows you to use existing API calls, such as ct_bind, ct_describe, ct_param, ct_setparam, cs_convert and so on.