Before transferring data with the extended functions, you must add all parameters and tables to the parameter stack.
A calling program that receives return values ( RfcReceiveExt / RfcCallReceiveExt), or a called program that receives import parameters ( RfcGetData), must add import parameters to the stack with RfcAddImportParam:
void * name,
void * addr);
Parameters for RfcAddImportParam have the same meanings as for RfcAddExportParam.
These fields have the same meanings as the corresponding RFC_PARAMETER fields. (See ItInsLine)
Remember to allocate the stack space with RfcAllocParamSpace before calling RfcAddImportParam.