The sad thing is that Epic games is currently showing very little support for C++ programming 
There is a blueprint tutorial handling networking on their youtube channel, maybe you could try getting inspired by that. You will need to call some RPC (replicate functions), lets hope they post a C++ tutorial for networking in the near future.
Check out this link: https://www.unrealengine.com/blog/blueprint-networking-https://www.unrealengine.com/blog/blueprint-networking-tutorials