EMA C++ RDM Usage Guide : Appendix A ReqMsg Payload : A.2 ItemList
 
A.2 ItemList
The client application can specify interest in multiple items by using a single batch request message. To do this, encode a list of item names in the request message payload. This is supported on any non-administrative Domain Model and any user defined DMM. For further details, refer to Enterprise Message API C++ Edition Reference Guide.
For batch request messages, the payload contains, at a minimum, an element list which includes the following element entry:
 
Table 75: ItemList in Payload  
ELEMENT NAME
TYPE
RANGE/EXAMPLES
DESCRIPTION
:ItemList
Array of ASCII
1 to Array
max
Required. A list of item names in which the client registers interest.
:ItemList does not use a default value.