To request a service from the client UAP, specify the following as the arguments of the function dc_rpc_call():

• Input parameter
• Input parameter length
• Response storage area
• Length of the response acceptance area

The service function sets the response into the response storage area, and the response length into the response acceptance area, then returns the set values to the client UAP. The figure below shows data transfer through the remote procedure call.

Figure 2-2 Data transfer through remote procedure call