how to implement bool NetDeltaSerialize(FNetDeltaSerializeInfo & DeltaParms);

I want to replicate a custom struct, which contains a TArray>, how to implement it?

All informations you need is here :
https://github.com/EpicGames/UnrealEngine/blob/release/Engine/Source/Runtime/Engine/Classes/Engine/NetSerialization.h

If you can’t read this page don’t forget to associate your Github account to your Unreal account:

thanks for replying.
I have read the code before, the example there is FFastArraySerializer(), which contains a lot its own logic there. I just want know the meaning of @DeltaParms, so I can write my own to serialize shared pointer array. Any doc or simpler example there?