Memory sharing equivalent?

I’m trying to do some memory sharing throught Unreal but I dont know if this feature is supported. I basicly want to read from a shared memory. It looks like I can’t import window.h in my classes.

I would want something similar to this (in Unreal) :
HANDLE handle = OpenFileMapping(FILE_MAP_ALL_ACCESS, FALSE, memoryName.c_str());

I tried FSharedMemoryRegion, but it looks like I can only write in it and can’t include it…

Working on Unreal Engine 5