use RV_MESSAGE_UPDATE or RV_MESSAGE_UPDATE_SINGLE, you mat also want to call this is update task.
Also it would be helpful if you give some more details about what you are trying to do, we can help further
use RV_MESSAGE_UPDATE or RV_MESSAGE_UPDATE_SINGLE, you mat also want to call this is update task.
Also it would be helpful if you give some more details about what you are trying to do, we can help further