Returns the function description that is valid for the system to which rfcHandle points to. If the function description is already in the repository cache for that system ID, it will be returned immediately (from the cache), otherwise it will be looked up in the system's DDIC using the rfcHandle. The result from the DDIC lookup will then be placed in the cache. The RFC Runtime maintains a cache for every SAP System ID, as the meta data may be different depending on the SAP release. This is the main API that should be used.
RFC_FUNCTION_DESC_HANDLE SAP_API RfcGetFunctionDesc(RFC_CONNECTION_HANDLE rfcHandle, SAP_UC const * funcName, RFC_ERROR_INFO* info);