[Boost-users] [InterProcess] receiving notification when an item is added to the message queue

Good afternoon, I am looking to use the message queue in the Interprocess library to communicate between two Windows processes. I was wondering whether there was an in-built mechanism to signal to the process reading from the queue that a message is available for consumption. If there isn't anything in-built, I was wondering what the best way to do this is and whether anybody has any working sample code they would be willing to share? Any help appreciated as always. Kind regards Sean.