How to read a value from the memory of a third-party process at the found address using win Api?

Question

Windows

Found the address in the process memory using the cheat engine. Tell me how to read from this address using the standard win API. Please provide any working example. I tried to use ReadProcessMemory, but it gives error 299 all the time. We need the correct work algorithm.

Answer 1

So the error is ERROR_PARTIAL_COPY(299)
An example is here